diff --git a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/ClassDefinitionGenerator.java b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/ClassDefinitionGenerator.java
index f671ecf..e778a84 100644
--- a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/ClassDefinitionGenerator.java
+++ b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/ClassDefinitionGenerator.java
@@ -17,6 +17,7 @@
 package org.onosproject.yangutils.translator.tojava.utils;
 
 import org.onosproject.yangutils.datamodel.YangAugment;
+import org.onosproject.yangutils.datamodel.YangCase;
 import org.onosproject.yangutils.datamodel.YangIdentity;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangNotification;
@@ -45,7 +46,6 @@
 import static org.onosproject.yangutils.utils.UtilConstants.CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
 import static org.onosproject.yangutils.utils.UtilConstants.DEFAULT;
-import static org.onosproject.yangutils.utils.UtilConstants.OPERATION;
 import static org.onosproject.yangutils.utils.UtilConstants.DIAMOND_CLOSE_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.DIAMOND_OPEN_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.EIGHT_SPACE_INDENTATION;
@@ -61,12 +61,14 @@
 import static org.onosproject.yangutils.utils.UtilConstants.MANAGER;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.OPEN_CURLY_BRACKET;
+import static org.onosproject.yangutils.utils.UtilConstants.OPERATION;
 import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
 import static org.onosproject.yangutils.utils.UtilConstants.PUBLIC;
 import static org.onosproject.yangutils.utils.UtilConstants.REGEX_FOR_ANY_STRING_ENDING_WITH_SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.SERVICE;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
 import static org.onosproject.yangutils.utils.UtilConstants.SUBJECT;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_AUGMENTED_OP_PARAM_INFO;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCapitalCase;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.trimAtLast;
 
@@ -82,8 +84,7 @@
     }
 
     /**
-     * Based on the file type and the YANG name of the file, generate the class
-     * / interface definition start.
+     * Based on the file type and the YANG name of the file, generate the class / interface definition start.
      *
      * @param genFileTypes generated file type
      * @param yangName     class name
@@ -107,8 +108,7 @@
     }
 
     /**
-     * Based on the file type and the YANG name of the file, generate the class
-     * / interface definition start.
+     * Based on the file type and the YANG name of the file, generate the class / interface definition start.
      *
      * @param genFileTypes generated file type
      * @param yangName     class name
@@ -131,7 +131,7 @@
             case IMPL_CLASS_MASK:
                 return getImplClassDefinition(yangName, curNode);
             case OPERATION_CLASS_MASK:
-                return getOperClassDefinition(yangName, curNode);
+                return getOpPramImplClassDefinition(yangName, curNode);
             case BUILDER_INTERFACE_MASK:
                 return getBuilderInterfaceDefinition(yangName, curNode);
             case GENERATE_SERVICE_AND_MANAGER:
@@ -178,14 +178,12 @@
     /**
      * Returns builder interface file class definition.
      *
-     * @param yangName java class name, corresponding to which the builder class
-     *                 is being generated
+     * @param yangName java class name, corresponding to which the builder class is being generated
      * @return definition
      */
     private static String getBuilderInterfaceDefinition(String yangName, YangNode curNode) {
-        String clsDef = "";
-        if (curNode instanceof YangAugment) {
-            clsDef = getClassDefinitionForWhenExtended(curNode, yangName, BUILDER_INTERFACE_MASK);
+        if (!(curNode instanceof YangCase)) {
+            String clsDef = getClassDefinitionForWhenExtended(curNode, yangName, BUILDER_INTERFACE_MASK);
             if (clsDef != null) {
                 return clsDef;
             }
@@ -200,9 +198,8 @@
      * @return definition
      */
     private static String getBuilderClassDefinition(String yangName, YangNode curNode) {
-        String clsDef = "";
-        if (curNode instanceof YangAugment) {
-            clsDef = getClassDefinitionForWhenExtended(curNode, yangName, BUILDER_CLASS_MASK);
+        if (!(curNode instanceof YangCase)) {
+            String clsDef = getClassDefinitionForWhenExtended(curNode, yangName, BUILDER_CLASS_MASK);
             if (clsDef != null) {
                 return clsDef;
             }
@@ -215,15 +212,14 @@
      * Returns operation param builder file class definition.
      *
      * @param yangName class name
-     * @param curNode   YANG node
+     * @param curNode  YANG node
      * @return definition returns operation param builder file class definition
      */
     private static String getOpParamBuilderClassDefinition(String yangName, YangNode curNode) {
-        String clsDef = "";
-        if (curNode instanceof YangAugment) {
-            clsDef = getClassDefinitionForWhenExtended(curNode, yangName, OPERATION_BUILDER_CLASS_MASK);
+        if (!(curNode instanceof YangCase)) {
+            String clsDef = getClassDefinitionForWhenExtended(curNode, yangName, OPERATION_BUILDER_CLASS_MASK);
             if (clsDef != null) {
-                return clsDef;
+                return clsDef + OPEN_CURLY_BRACKET + NEW_LINE;
             }
         }
         return PUBLIC + SPACE + CLASS + SPACE + yangName + OPERATION + BUILDER + SPACE + EXTEND +
@@ -238,9 +234,8 @@
      * @return definition
      */
     private static String getImplClassDefinition(String yangName, YangNode curNode) {
-        String clsDef = "";
-        if (curNode instanceof YangAugment) {
-            clsDef = getClassDefinitionForWhenExtended(curNode, yangName, IMPL_CLASS_MASK);
+        if (!(curNode instanceof YangCase)) {
+            String clsDef = getClassDefinitionForWhenExtended(curNode, yangName, IMPL_CLASS_MASK);
             if (clsDef != null) {
                 return clsDef;
             }
@@ -253,20 +248,26 @@
      * Returns operation param file class definition.
      *
      * @param yangName class name
-     * @param curNode   YANG node
+     * @param curNode  YANG node
      * @return definition returns operation param file class definition
      */
-    private static String getOperClassDefinition(String yangName, YangNode curNode) {
+    private static String getOpPramImplClassDefinition(String yangName, YangNode curNode) {
         String clsDef = "";
-        if (curNode instanceof YangAugment) {
+        if (!(curNode instanceof YangCase)) {
             clsDef = getClassDefinitionForWhenExtended(curNode, yangName, OPERATION_CLASS_MASK);
-            if (clsDef != null) {
-                return clsDef;
-            }
         }
 
-        return PUBLIC + SPACE + CLASS + SPACE + yangName + OPERATION + SPACE + EXTEND + SPACE
-                + getCapitalCase(DEFAULT) + yangName + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
+        if (clsDef.equals("")) {
+            clsDef = PUBLIC + SPACE + CLASS + SPACE + yangName + OPERATION + SPACE + EXTEND + SPACE
+                    + getCapitalCase(DEFAULT) + yangName + SPACE;
+        }
+        if (curNode instanceof YangAugment) {
+            clsDef = clsDef + IMPLEMENTS + SPACE + YANG_AUGMENTED_OP_PARAM_INFO + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
+        } else {
+            clsDef = clsDef + OPEN_CURLY_BRACKET + NEW_LINE;
+        }
+
+        return clsDef;
     }
 
     /**
@@ -407,72 +408,28 @@
             switch (genFileTypes) {
                 case INTERFACE_MASK:
                     def = def + INTERFACE + SPACE + yangName + SPACE + EXTEND + SPACE;
-                    for (JavaQualifiedTypeInfo info : holder.getExtendsList()) {
-                        if (curNode instanceof YangAugment) {
-                            if (!info.getClassInfo().contains(BUILDER) && !info.getClassInfo().contains(
-                                    getCapitalCase(DEFAULT))) {
-                                def = getDefinitionString(def, info, holder);
-                            }
-                        } else {
-                            def = getDefinitionString(def, info, holder);
-                        }
-                    }
-                    def = trimAtLast(def, COMMA);
-
+                    def = getDefinitionString(def, holder);
                     return def + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
                 case BUILDER_INTERFACE_MASK:
                     String builderDef = INTERFACE + SPACE + yangName + BUILDER + SPACE + EXTEND + SPACE;
-                    for (JavaQualifiedTypeInfo info : holder.getExtendsList()) {
-                        if (info.getClassInfo().contains(BUILDER) && !info.getClassInfo().contains(
-                                getCapitalCase(DEFAULT))) {
-                            builderDef = getDefinitionString(builderDef, info, holder);
-                        }
-                    }
-
-                    builderDef = trimAtLast(builderDef, COMMA);
-
+                    builderDef = getDefinitionString(builderDef, holder);
                     return builderDef + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
                 case BUILDER_CLASS_MASK:
                     def = def + CLASS + SPACE + yangName + BUILDER + SPACE + EXTEND + SPACE;
-                    for (JavaQualifiedTypeInfo info : holder.getExtendsList()) {
-                        if (info.getClassInfo().contains(BUILDER)
-                                && info.getClassInfo().contains(getCapitalCase(DEFAULT))) {
-                            def = getDefinitionString(def, info, holder);
-                        }
-                    }
-
-                    def = trimAtLast(def, COMMA);
-
+                    def = getDefinitionString(def, holder);
                     return def + SPACE + IMPLEMENTS + SPACE + yangName + PERIOD
                             + yangName + BUILDER + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
 
                 case IMPL_CLASS_MASK:
                     def = def + SPACE + CLASS + SPACE + getCapitalCase(DEFAULT) + yangName + SPACE + EXTEND + SPACE;
-                    for (JavaQualifiedTypeInfo info : holder.getExtendsList()) {
-                        if (!info.getClassInfo().contains(BUILDER)
-                                && info.getClassInfo().contains(getCapitalCase(DEFAULT))) {
-                            def = getDefinitionString(def, info, holder);
-                        }
-                    }
-
-                    def = trimAtLast(def, COMMA);
-
+                    def = getDefinitionString(def, holder);
                     return def + SPACE + IMPLEMENTS + SPACE
                             + yangName + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
 
                 case OPERATION_CLASS_MASK:
-                    def = def + SPACE + CLASS + SPACE + yangName + OPERATION + SPACE;
-                    for (JavaQualifiedTypeInfo info : holder.getExtendsList()) {
-                        if (!info.getClassInfo().contains(BUILDER)
-                                && info.getClassInfo().contains(OPERATION)) {
-                            def = getDefinitionString(def, info, holder);
-                        }
-                    }
-
-                    def = trimAtLast(def, COMMA);
-
-                    return def + SPACE + EXTEND + SPACE
-                            + getCapitalCase(DEFAULT) + yangName + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
+                    def = def + CLASS + SPACE + yangName + OPERATION + SPACE + EXTEND + SPACE;
+                    def = getDefinitionString(def, holder);
+                    return def + SPACE;
                 default:
                     return null;
             }
@@ -484,17 +441,18 @@
      * Returns updated class definition.
      *
      * @param def    current definition
-     * @param info   java qualified info
      * @param holder extend list holder
      * @return updated class definition
      */
-    private static String getDefinitionString(String def, JavaQualifiedTypeInfo info, JavaExtendsListHolder holder) {
-        if (!holder.getExtendedClassStore().get(info)) {
-            def = def + info.getClassInfo() + COMMA + SPACE;
-        } else {
-            def = def + info.getPkgInfo() + PERIOD + info.getClassInfo() + COMMA + SPACE;
+    private static String getDefinitionString(String def, JavaExtendsListHolder holder) {
+        for (JavaQualifiedTypeInfo info : holder.getExtendsList()) {
+            if (!holder.getExtendedClassStore().get(info)) {
+                def = def + info.getClassInfo() + COMMA + SPACE;
+            } else {
+                def = def + info.getPkgInfo() + PERIOD + info.getClassInfo() + COMMA + SPACE;
+            }
         }
-        return def;
+        return trimAtLast(def, COMMA);
     }
 
 }
diff --git a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaCodeSnippetGen.java b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaCodeSnippetGen.java
index ade6375..cd361d0 100644
--- a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaCodeSnippetGen.java
+++ b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaCodeSnippetGen.java
@@ -95,8 +95,7 @@
      * Returns the textual java code information corresponding to the import list.
      *
      * @param importInfo import info
-     * @return the textual java code information corresponding to the import
-     * list
+     * @return the textual java code information corresponding to the import list
      */
     public static String getImportText(JavaQualifiedTypeInfo importInfo) {
         return IMPORT + importInfo.getPkgInfo() + PERIOD + importInfo.getClassInfo() + SEMI_COLAN + NEW_LINE;
@@ -147,8 +146,7 @@
     }
 
     /**
-     * Returns based on the file type and the YANG name of the file, generate the class
-     * / interface definition close.
+     * Returns based on the file type and the YANG name of the file, generate the class / interface definition close.
      *
      * @return corresponding textual java code information
      */
diff --git a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaExtendsListHolder.java b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaExtendsListHolder.java
index d686842..9bd3bbf 100644
--- a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaExtendsListHolder.java
+++ b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaExtendsListHolder.java
@@ -31,8 +31,8 @@
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCapitalCase;
 
 /**
- * Represent the extends list for generated java classes. It holds the class details which needs
- * to be extended by the generated java code.
+ * Represent the extends list for generated java classes. It holds the class details which needs to be extended by the
+ * generated java code.
  */
 public class JavaExtendsListHolder {
 
diff --git a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaFileGenerator.java b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaFileGenerator.java
index 5aecdc4..c8d55d7 100644
--- a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaFileGenerator.java
+++ b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaFileGenerator.java
@@ -26,9 +26,10 @@
 import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangLeafList;
 import org.onosproject.yangutils.datamodel.YangLeavesHolder;
+import org.onosproject.yangutils.datamodel.YangModule;
 import org.onosproject.yangutils.datamodel.YangNode;
-import org.onosproject.yangutils.datamodel.YangTypeDef;
 import org.onosproject.yangutils.datamodel.YangType;
+import org.onosproject.yangutils.datamodel.YangTypeDef;
 import org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes;
 import org.onosproject.yangutils.translator.tojava.JavaAttributeInfo;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
@@ -37,7 +38,9 @@
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaEnumerationFragmentFiles;
+import org.onosproject.yangutils.translator.tojava.TempJavaEventFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaServiceFragmentFiles;
+import org.onosproject.yangutils.translator.tojava.YangJavaModelUtils;
 import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.BUILDER_CLASS_MASK;
@@ -54,7 +57,6 @@
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.OPERATION_BUILDER_CLASS_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.OPERATION_CLASS_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.ATTRIBUTES_MASK;
-import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.AUGMENTE_CLASS_CONSTRUCTOR_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_FOR_TYPE_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.CONSTRUCTOR_IMPL_MASK;
 import static org.onosproject.yangutils.translator.tojava.GeneratedTempFileType.ENUM_IMPL_MASK;
@@ -86,9 +88,10 @@
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.addDeActivateMethod;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAddAugmentInfoMethodImpl;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAugmentInfoImpl;
-import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAugmentedNodesConstructorStart;
+import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAugmentInfoMapImpl;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAugmentsDataMethodForManager;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getAugmentsDataMethodForService;
+import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getBaseClassMethodImpl;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getConstructorStart;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getEnumsConstructor;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getEnumsOfMethod;
@@ -101,6 +104,7 @@
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getGetterString;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getHashCodeMethodClose;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getHashCodeMethodOpen;
+import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getIsFilterContentMatch;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getOmitNullValueString;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getOpParamConstructorStart;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getOperationTypeSetter;
@@ -116,65 +120,61 @@
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getToStringMethodOpen;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getToStringSelectLeafListgetter;
 import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getToStringSelectLeafgetter;
-import static org.onosproject.yangutils.translator.tojava.utils.MethodsGenerator.getisFilterContentMatch;
 import static org.onosproject.yangutils.utils.UtilConstants.BASE64;
-import static org.onosproject.yangutils.utils.UtilConstants.BINARY_STRING;
-import static org.onosproject.yangutils.utils.UtilConstants.BITS_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.BITSET;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_CURLY_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_PARENTHESIS;
 import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
+import static org.onosproject.yangutils.utils.UtilConstants.CREATE;
 import static org.onosproject.yangutils.utils.UtilConstants.DEFAULT;
+import static org.onosproject.yangutils.utils.UtilConstants.DELETE;
 import static org.onosproject.yangutils.utils.UtilConstants.EIGHT_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.EMPTY_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.ENCODE_TO_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.ENUM;
+import static org.onosproject.yangutils.utils.UtilConstants.EQUAL;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_LISTENER_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_SUBJECT_NAME_SUFFIX;
+import static org.onosproject.yangutils.utils.UtilConstants.FILTER_LEAF;
+import static org.onosproject.yangutils.utils.UtilConstants.FILTER_LEAF_LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.FOUR_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.GET_ENCODER;
-import static org.onosproject.yangutils.utils.UtilConstants.ENCODE_TO_STRING;
-import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_OBJECTS_IMPORT_PKG;
-import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_IMPORT_BASE64_CLASS;
+import static org.onosproject.yangutils.utils.UtilConstants.GET_FILTER_LEAF;
+import static org.onosproject.yangutils.utils.UtilConstants.GET_FILTER_LEAF_LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.IMPORT;
 import static org.onosproject.yangutils.utils.UtilConstants.INT;
+import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_IMPORT_BASE64_CLASS;
+import static org.onosproject.yangutils.utils.UtilConstants.JAVA_UTIL_OBJECTS_IMPORT_PKG;
 import static org.onosproject.yangutils.utils.UtilConstants.LOGGER_STATEMENT;
 import static org.onosproject.yangutils.utils.UtilConstants.MANAGER;
+import static org.onosproject.yangutils.utils.UtilConstants.MERGE;
+import static org.onosproject.yangutils.utils.UtilConstants.NEW;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.OBJECT;
+import static org.onosproject.yangutils.utils.UtilConstants.OPEN_CURLY_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.OPEN_PARENTHESIS;
-import static org.onosproject.yangutils.utils.UtilConstants.PRIVATE;
-import static org.onosproject.yangutils.utils.UtilConstants.PUBLIC;
-import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
-import static org.onosproject.yangutils.utils.UtilConstants.SERVICE_METHOD_STRING;
-import static org.onosproject.yangutils.utils.UtilConstants.SUPER;
-import static org.onosproject.yangutils.utils.UtilConstants.BITSET;
-import static org.onosproject.yangutils.utils.UtilConstants.GET_FILTER_LEAF;
-import static org.onosproject.yangutils.utils.UtilConstants.FILTER_LEAF;
-import static org.onosproject.yangutils.utils.UtilConstants.SELECT_LEAF;
-import static org.onosproject.yangutils.utils.UtilConstants.GET_FILTER_LEAF_LIST;
-import static org.onosproject.yangutils.utils.UtilConstants.FILTER_LEAF_LIST;
-import static org.onosproject.yangutils.utils.UtilConstants.SELECT_LEAF_LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.OPERATION_ENUM;
 import static org.onosproject.yangutils.utils.UtilConstants.OP_PARAM_TYPE;
-import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
-import static org.onosproject.yangutils.utils.UtilConstants.EQUAL;
-import static org.onosproject.yangutils.utils.UtilConstants.NEW;
-import static org.onosproject.yangutils.utils.UtilConstants.STATIC;
-import static org.onosproject.yangutils.utils.UtilConstants.ENUM;
-import static org.onosproject.yangutils.utils.UtilConstants.OPEN_CURLY_BRACKET;
-import static org.onosproject.yangutils.utils.UtilConstants.MERGE;
+import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
+import static org.onosproject.yangutils.utils.UtilConstants.PRIVATE;
+import static org.onosproject.yangutils.utils.UtilConstants.PUBLIC;
+import static org.onosproject.yangutils.utils.UtilConstants.REMOVE;
 import static org.onosproject.yangutils.utils.UtilConstants.REPLACE;
 import static org.onosproject.yangutils.utils.UtilConstants.RETURN;
-import static org.onosproject.yangutils.utils.UtilConstants.CREATE;
-import static org.onosproject.yangutils.utils.UtilConstants.REMOVE;
-import static org.onosproject.yangutils.utils.UtilConstants.DELETE;
-import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
+import static org.onosproject.yangutils.utils.UtilConstants.SELECT_LEAF;
+import static org.onosproject.yangutils.utils.UtilConstants.SELECT_LEAF_LIST;
+import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
+import static org.onosproject.yangutils.utils.UtilConstants.SERVICE_METHOD_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
+import static org.onosproject.yangutils.utils.UtilConstants.STATIC;
 import static org.onosproject.yangutils.utils.UtilConstants.STRING_DATA_TYPE;
+import static org.onosproject.yangutils.utils.UtilConstants.SUPER;
 import static org.onosproject.yangutils.utils.UtilConstants.TO;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.GETTER_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.TYPE_CONSTRUCTOR;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
-import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCamelCase;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCapitalCase;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.insertDataIntoJavaFile;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.trimAtLast;
@@ -203,7 +203,13 @@
             throws IOException {
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
-        String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
+
+        String path;
+        if (curNode instanceof YangModule) {
+            path = javaFileInfo.getPluginConfig().getCodeGenDir() + javaFileInfo.getPackageFilePath();
+        } else {
+            path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
+        }
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
 
@@ -244,7 +250,12 @@
         YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
-        String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
+        String path;
+        if (curNode instanceof YangModule) {
+            path = javaFileInfo.getPluginConfig().getCodeGenDir() + javaFileInfo.getPackageFilePath();
+        } else {
+            path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
+        }
 
         initiateJavaFileGeneration(file, BUILDER_INTERFACE_MASK, null, curNode, className);
         List<String> methods = new ArrayList<>();
@@ -302,14 +313,16 @@
         YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
-        String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
+
+        String path;
+        if (curNode instanceof YangModule) {
+            path = javaFileInfo.getPluginConfig().getCodeGenDir() + javaFileInfo.getPackageFilePath();
+        } else {
+            path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
+        }
 
         initiateJavaFileGeneration(file, BUILDER_CLASS_MASK, null, curNode, className);
         List<String> methods = new ArrayList<>();
-        boolean isAugmentNode = false;
-        if (curNode instanceof YangAugment) {
-            isAugmentNode = true;
-        }
 
         if (isAttrPresent) {
             /**
@@ -339,21 +352,6 @@
                         ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                                 .getBeanTempFiles(), path));
 
-                if (isAugmentNode) {
-                    YangAugment augment = (YangAugment) curNode;
-                    String augmentNode = getCapitalCase(
-                            getCamelCase(augment.getAugmentedNode().getName(), pluginConfig.getConflictResolver()));
-                    /**
-                     * Constructor.
-                     */
-                    String constructor = getAugmentedNodesConstructorStart(className, augmentNode)
-                            + getDataFromTempFileHandle(AUGMENTE_CLASS_CONSTRUCTOR_MASK,
-                            ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
-                                    .getBeanTempFiles(), path);
-
-                    methods.add(constructor + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET +
-                            NEW_LINE + NEW_LINE);
-                }
                 insertDataIntoJavaFile(file, NEW_LINE);
             } catch (IOException e) {
                 throw new IOException("No data found in temporary java code fragment files for " + className
@@ -382,14 +380,15 @@
 
     /**
      * Returns generated op param builder class file for current node.
-     * @param file    file handle
-     * @param curNode  current YANG node
+     *
+     * @param file          file handle
+     * @param curNode       current YANG node
      * @param isAttrPresent if any attribute is present or not
      * @return builder class file
      * @throws IOException when fails to write in file
      */
     public static File generateOpParamBuilderClassFile(File file, YangNode curNode,
-                                                boolean isAttrPresent) throws IOException {
+                                                       boolean isAttrPresent) throws IOException {
 
         JavaFileInfo javaFileInfo = ((JavaFileInfoContainer) curNode).getJavaFileInfo();
         YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
@@ -409,7 +408,7 @@
 
             } catch (IOException e) {
                 throw new IOException("No data found in temporary java code fragment files for " + className
-                                              + " while impl class file generation");
+                        + " while impl class file generation");
             }
 
             try {
@@ -445,7 +444,7 @@
 
             } catch (IOException e) {
                 throw new IOException("No data found in temporary java code fragment files for " + className
-                                              + " while impl class file generation");
+                        + " while impl class file generation");
             }
 
             try {
@@ -476,7 +475,7 @@
                 insertDataIntoJavaFile(file, NEW_LINE);
             } catch (IOException e) {
                 throw new IOException("No data found in temporary java code fragment files for " + className
-                                              + " while builder class file generation");
+                        + " while builder class file generation");
             }
         } else {
             insertDataIntoJavaFile(file, NEW_LINE);
@@ -579,15 +578,16 @@
         YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
-        String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
+        String path;
+        if (curNode instanceof YangModule) {
+            path = javaFileInfo.getPluginConfig().getCodeGenDir() + javaFileInfo.getPackageFilePath();
+        } else {
+            path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
+        }
 
         initiateJavaFileGeneration(file, IMPL_CLASS_MASK, imports, curNode, className);
 
         List<String> methods = new ArrayList<>();
-        boolean isAugmentNode = false;
-        if (curNode instanceof YangAugment) {
-            isAugmentNode = true;
-        }
         if (curNode instanceof YangAugmentableNode) {
             insertDataIntoJavaFile(file, addAugmentationAttribute());
         }
@@ -648,11 +648,6 @@
              * Constructor.
              */
             String constructor = getConstructorStart(className, pluginConfig);
-            if (isAugmentNode) {
-                constructor = constructor + EIGHT_SPACE_INDENTATION + SUPER + OPEN_PARENTHESIS
-                        + BUILDER.toLowerCase() + OBJECT
-                        + CLOSE_PARENTHESIS + SEMI_COLAN + NEW_LINE;
-            }
             constructor = constructor + getDataFromTempFileHandle(CONSTRUCTOR_IMPL_MASK,
                     ((TempJavaCodeFragmentFilesContainer) curNode).getTempJavaCodeFragmentFiles()
                             .getBeanTempFiles(), path);
@@ -666,6 +661,7 @@
         if (curNode instanceof YangAugmentableNode) {
             methods.add(getAddAugmentInfoMethodImpl());
             methods.add(getAugmentInfoImpl());
+            methods.add(getAugmentInfoMapImpl(javaFileInfo.getPluginConfig()));
         }
 
         /**
@@ -681,11 +677,11 @@
     /**
      * Returns generated op param class file for current node.
      *
-     * @param file           file handle
-     * @param curNode        current YANG node
-     * @param isAttrPresent  if any attribute is present or not
-     * @param imports        import list
-     * @return    returns generated op param class file for current node
+     * @param file          file handle
+     * @param curNode       current YANG node
+     * @param isAttrPresent if any attribute is present or not
+     * @param imports       import list
+     * @return returns generated op param class file for current node
      * @throws IOException when fails to write in file
      */
     public static File generateOpParamImplClassFile(File file, YangNode curNode,
@@ -696,7 +692,6 @@
         YangPluginConfig pluginConfig = javaFileInfo.getPluginConfig();
 
         String className = getCapitalCase(javaFileInfo.getJavaName());
-        String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
 
         initiateJavaFileGeneration(file, OPERATION_CLASS_MASK, imports, curNode, className);
 
@@ -718,7 +713,7 @@
 
             } catch (IOException e) {
                 throw new IOException("No data found in temporary java code fragment files for " + className
-                                              + " while impl class file generation");
+                        + " while impl class file generation");
             }
 
             /**
@@ -730,7 +725,7 @@
 
             } catch (IOException e) {
                 throw new IOException("No data found in temporary java code fragment files for " + className
-                                              + " while impl class file generation");
+                        + " while impl class file generation");
             }
 
             try {
@@ -766,7 +761,7 @@
 
             } catch (IOException e) {
                 throw new IOException("No data found in temporary java code fragment files for " + className
-                                              + " while impl class file generation");
+                        + " while impl class file generation");
             }
 
             if (curNode instanceof YangLeavesHolder) {
@@ -786,7 +781,7 @@
             }
 
             methods.add(getOperationTypegetter());
-            methods.add(getisFilterContentMatch(className, curNode, pluginConfig));
+            methods.add(getIsFilterContentMatch(className, curNode, pluginConfig));
 
         } else {
             insertDataIntoJavaFile(file, NEW_LINE);
@@ -821,6 +816,12 @@
 
         methods.add(constructor + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET);
 
+        if (curNode instanceof YangAugment) {
+            String clsName = getCapitalCase(DEFAULT) +
+                    getCapitalCase(YangJavaModelUtils.getAugmentClassName((YangAugment) curNode, pluginConfig));
+            methods.add(getBaseClassMethodImpl(clsName));
+        }
+
         /**
          * Add methods in impl class.
          */
@@ -925,9 +926,9 @@
              */
              if (type.getDataType().equals(YangDataTypes.BINARY)) {
                     JavaQualifiedTypeInfo qualifiedTypeInfo = getQualifiedTypeInfoOfCurNode(curNode,
-                                                                     getCapitalCase(BINARY_STRING));
+                                                                                            getCapitalCase("binary"));
 
-                    JavaAttributeInfo attr =  getAttributeInfoForTheData(qualifiedTypeInfo, BINARY_STRING, null, false,
+                    JavaAttributeInfo attr =  getAttributeInfoForTheData(qualifiedTypeInfo, "binary", null, false,
                                                                          false);
                     String attributeName = attr.getAttributeName();
                     String bitsToStringMethod = MethodsGenerator.getOverRideString() + FOUR_SPACE_INDENTATION + PUBLIC
@@ -939,10 +940,9 @@
                     methods.add(bitsToStringMethod);
              } else if (type.getDataType().equals(YangDataTypes.BITS)) {
                     JavaQualifiedTypeInfo qualifiedTypeInfo = getQualifiedTypeInfoOfCurNode(curNode,
-                                                                     getCapitalCase(BITS_STRING));
+                                                                                            getCapitalCase("bits"));
 
-                    JavaAttributeInfo attr =  getAttributeInfoForTheData(qualifiedTypeInfo, BITS_STRING,
-                                                                         null, false, false);
+                    JavaAttributeInfo attr =  getAttributeInfoForTheData(qualifiedTypeInfo, "bits", null, false, false);
                     String attributeName = attr.getAttributeName();
                     String bitsToStringMethod = MethodsGenerator.getOverRideString() + FOUR_SPACE_INDENTATION + PUBLIC
                             + SPACE + STRING_DATA_TYPE + SPACE + TO + STRING_DATA_TYPE + OPEN_PARENTHESIS
@@ -1238,8 +1238,8 @@
         String className = getCapitalCase(((JavaFileInfoContainer) curNode).getJavaFileInfo().getJavaName())
                 + EVENT_STRING;
 
-        TempJavaServiceFragmentFiles tempFiles = ((TempJavaCodeFragmentFilesContainer) curNode)
-                .getTempJavaCodeFragmentFiles().getServiceTempFiles();
+        TempJavaEventFragmentFiles tempFiles = ((TempJavaCodeFragmentFilesContainer) curNode)
+                .getTempJavaCodeFragmentFiles().getEventFragmentFiles();
 
         String path = ((JavaFileInfoContainer) curNode).getJavaFileInfo().getBaseCodeGenPath()
                 + ((JavaFileInfoContainer) curNode).getJavaFileInfo().getPackageFilePath();
@@ -1296,8 +1296,9 @@
 
         String path = ((JavaFileInfoContainer) curNode).getJavaFileInfo().getBaseCodeGenPath()
                 + ((JavaFileInfoContainer) curNode).getJavaFileInfo().getPackageFilePath();
-        TempJavaServiceFragmentFiles tempFiles = ((TempJavaCodeFragmentFilesContainer) curNode)
-                .getTempJavaCodeFragmentFiles().getServiceTempFiles();
+
+        TempJavaEventFragmentFiles tempFiles = ((TempJavaCodeFragmentFilesContainer) curNode)
+                .getTempJavaCodeFragmentFiles().getEventFragmentFiles();
 
         insertDataIntoJavaFile(file, NEW_LINE);
         try {
diff --git a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaFileGeneratorUtils.java b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaFileGeneratorUtils.java
index 14e71ad..f76d9b2 100644
--- a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaFileGeneratorUtils.java
+++ b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/JavaFileGeneratorUtils.java
@@ -19,9 +19,7 @@
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 
 import org.onosproject.yangutils.datamodel.YangAtomicPath;
 import org.onosproject.yangutils.datamodel.YangAugment;
@@ -36,6 +34,7 @@
 import org.onosproject.yangutils.translator.tojava.TempJavaBeanFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaEnumerationFragmentFiles;
+import org.onosproject.yangutils.translator.tojava.TempJavaEventFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaServiceFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaTypeFragmentFiles;
@@ -81,9 +80,7 @@
 import static org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo.getQualifiedTypeInfoOfCurNode;
 import static org.onosproject.yangutils.translator.tojava.YangJavaModelUtils.getAugmentedNodesPackage;
 import static org.onosproject.yangutils.translator.tojava.utils.ClassDefinitionGenerator.generateClassDefinition;
-import static org.onosproject.yangutils.utils.UtilConstants.BUILDER;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_CURLY_BRACKET;
-import static org.onosproject.yangutils.utils.UtilConstants.DEFAULT;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
 import static org.onosproject.yangutils.utils.UtilConstants.PACKAGE;
 import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
@@ -97,9 +94,9 @@
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.EVENT;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.EVENT_LISTENER;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.EVENT_SUBJECT_CLASS;
-import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.OPERATION_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.IMPL_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.INTERFACE;
+import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.OPERATION_CLASS;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.RPC_INTERFACE;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.RPC_MANAGER;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
@@ -123,15 +120,15 @@
     /**
      * Returns a file object for generated file.
      *
-     * @param fileName  file name
      * @param filePath  file package path
+     * @param fileName  file name
      * @param extension file extension
-     * @param handle    cached file handle
+     * @param baseCodePath    cached file handle
      * @return file object
      */
-    public static File getFileObject(String filePath, String fileName, String extension, JavaFileInfo handle) {
+    public static File getFileObject(String filePath, String fileName, String extension, String baseCodePath) {
 
-        return new File(handle.getBaseCodeGenPath() + filePath + SLASH + fileName + extension);
+        return new File(baseCodePath + filePath + SLASH + fileName + extension);
     }
 
     /**
@@ -143,8 +140,8 @@
      * @return data stored in temporary files
      * @throws IOException when failed to get the data from temporary file handle
      */
-    public static String getDataFromTempFileHandle(int generatedTempFiles,
-                                                   TempJavaFragmentFiles tempJavaFragmentFiles, String absolutePath)
+    static String getDataFromTempFileHandle(int generatedTempFiles,
+                                            TempJavaFragmentFiles tempJavaFragmentFiles, String absolutePath)
             throws IOException {
 
         TempJavaTypeFragmentFiles typeFragmentFiles = null;
@@ -164,6 +161,11 @@
             serviceFragmentFiles = (TempJavaServiceFragmentFiles) tempJavaFragmentFiles;
         }
 
+        TempJavaEventFragmentFiles eventFragmentFiles = null;
+        if (tempJavaFragmentFiles instanceof TempJavaEventFragmentFiles) {
+            eventFragmentFiles = (TempJavaEventFragmentFiles) tempJavaFragmentFiles;
+        }
+
         if ((generatedTempFiles & ATTRIBUTES_MASK) != 0) {
             return tempJavaFragmentFiles
                     .getTemporaryDataFromFileHandle(tempJavaFragmentFiles.getAttributesTempFileHandle(),
@@ -247,39 +249,39 @@
                     .getTemporaryDataFromFileHandle(serviceFragmentFiles.getRpcImplTempFileHandle(),
                             absolutePath);
         } else if ((generatedTempFiles & EVENT_ENUM_MASK) != 0) {
-            if (serviceFragmentFiles == null) {
-                throw new TranslatorException("Required rpc implementation info is missing.");
+            if (eventFragmentFiles == null) {
+                throw new TranslatorException("Required event enum implementation info is missing.");
             }
-            return serviceFragmentFiles
-                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventEnumTempFileHandle(),
+            return eventFragmentFiles
+                    .getTemporaryDataFromFileHandle(eventFragmentFiles.getEventEnumTempFileHandle(),
                             absolutePath);
         } else if ((generatedTempFiles & EVENT_METHOD_MASK) != 0) {
-            if (serviceFragmentFiles == null) {
-                throw new TranslatorException("Required rpc implementation info is missing.");
+            if (eventFragmentFiles == null) {
+                throw new TranslatorException("Required event method implementation info is missing.");
             }
-            return serviceFragmentFiles
-                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventMethodTempFileHandle(),
+            return eventFragmentFiles
+                    .getTemporaryDataFromFileHandle(eventFragmentFiles.getEventMethodTempFileHandle(),
                             absolutePath);
         } else if ((generatedTempFiles & EVENT_SUBJECT_GETTER_MASK) != 0) {
-            if (serviceFragmentFiles == null) {
-                throw new TranslatorException("Required rpc implementation info is missing.");
+            if (eventFragmentFiles == null) {
+                throw new TranslatorException("Required event subject getter implementation info is missing.");
             }
-            return serviceFragmentFiles
-                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventSubjectGetterTempFileHandle(),
+            return eventFragmentFiles
+                    .getTemporaryDataFromFileHandle(eventFragmentFiles.getEventSubjectGetterTempFileHandle(),
                             absolutePath);
         } else if ((generatedTempFiles & EVENT_SUBJECT_SETTER_MASK) != 0) {
-            if (serviceFragmentFiles == null) {
-                throw new TranslatorException("Required rpc implementation info is missing.");
+            if (eventFragmentFiles == null) {
+                throw new TranslatorException("Required event subject setter implementation info is missing.");
             }
-            return serviceFragmentFiles
-                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventSubjectSetterTempFileHandle(),
+            return eventFragmentFiles
+                    .getTemporaryDataFromFileHandle(eventFragmentFiles.getEventSubjectSetterTempFileHandle(),
                             absolutePath);
         } else if ((generatedTempFiles & EVENT_SUBJECT_ATTRIBUTE_MASK) != 0) {
-            if (serviceFragmentFiles == null) {
-                throw new TranslatorException("Required rpc implementation info is missing.");
+            if (eventFragmentFiles == null) {
+                throw new TranslatorException("Required event subject attribute implementation info is missing.");
             }
-            return serviceFragmentFiles
-                    .getTemporaryDataFromFileHandle(serviceFragmentFiles.getEventSubjectAttributeTempFileHandle(),
+            return eventFragmentFiles
+                    .getTemporaryDataFromFileHandle(eventFragmentFiles.getEventSubjectAttributeTempFileHandle(),
                             absolutePath);
         }
         return null;
@@ -300,11 +302,15 @@
                                                   String pkg, YangPluginConfig pluginConfig)
             throws IOException {
 
+        boolean isFileCreated;
         try {
-            file.createNewFile();
+            isFileCreated = file.createNewFile();
+            if (!isFileCreated) {
+                throw new IOException("Failed to create " + file.getName() + " class file.");
+            }
             appendContents(file, className, genType, imports, pkg, pluginConfig);
         } catch (IOException e) {
-            throw new IOException("Failed to create " + file.getName() + " class file.");
+            throw new IOException("Failed to append contents in " + file.getName() + " class file.");
         }
     }
 
@@ -322,11 +328,15 @@
                                                   YangNode curNode, String className)
             throws IOException {
 
+        boolean isFileCreated;
         try {
-            file.createNewFile();
+            isFileCreated = file.createNewFile();
+            if (!isFileCreated) {
+                throw new IOException("Failed to create " + file.getName() + " class file.");
+            }
             appendContents(file, genType, imports, curNode, className);
         } catch (IOException e) {
-            throw new IOException("Failed to create " + file.getName() + " class file.");
+            throw new IOException("Failed to append contents in " + file.getName() + " class file.");
         }
     }
 
@@ -349,11 +359,7 @@
         String name = javaFileInfo.getJavaName();
         String path = javaFileInfo.getBaseCodeGenPath() + javaFileInfo.getPackageFilePath();
 
-        YangNode augmentedNode = null;
-        if (curNode instanceof YangAugment) {
-            augmentedNode = ((YangAugment) curNode).getAugmentedNode();
-        }
-        String pkgString = null;
+        String pkgString;
         if (genType == GENERATE_EVENT_CLASS
                 || genType == GENERATE_EVENT_LISTENER_INTERFACE
                 || genType == GENERATE_EVENT_SUBJECT_CLASS) {
@@ -363,11 +369,7 @@
         }
         switch (genType) {
             case INTERFACE_MASK:
-                if (augmentedNode != null) {
-                    appendHeaderContents(file, pkgString, importsList, augmentedNode);
-                } else {
-                    appendHeaderContents(file, pkgString, importsList);
-                }
+                appendHeaderContents(file, pkgString, importsList);
                 write(file, genType, INTERFACE, curNode, className);
                 break;
             case IMPL_CLASS_MASK:
@@ -470,8 +472,8 @@
     }
 
     /**
-     * Appends other contents to interface, impl and typedef classes.
-     * for example : ONOS copyright, imports and package.
+     * Appends other contents to interface, impl and typedef classes. for example : ONOS copyright, imports and
+     * package.
      *
      * @param file        generated file
      * @param pkg         generated package
@@ -485,7 +487,7 @@
         insertDataIntoJavaFile(file, pkg);
 
         /*
-         * TODO: add the file header using
+         * TODO: add the file header using comments for snippet of yang file.
          * JavaCodeSnippetGen.getFileHeaderComment
          */
 
@@ -498,39 +500,6 @@
     }
 
     /**
-     * Appends other contents to interface and impl classes when augmented node is not null.
-     * for example : ONOS copyright, imports and package.
-     *
-     * @param file          generated file
-     * @param pkg           generated package
-     * @param augmentedNode augmented node
-     * @param importsList   list of imports
-     * @throws IOException when fails to append contents
-     */
-    private static void appendHeaderContents(File file, String pkg, List<String> importsList, YangNode augmentedNode)
-            throws IOException {
-
-        insertDataIntoJavaFile(file, CopyrightHeader.getCopyrightHeader());
-        insertDataIntoJavaFile(file, pkg);
-
-        /*
-         * TODO: add the file header using
-         * JavaCodeSnippetGen.getFileHeaderComment
-         */
-
-        if (importsList != null) {
-            insertDataIntoJavaFile(file, NEW_LINE);
-            for (String imports : importsList) {
-                if (!imports.contains(getCapitalCase(DEFAULT) + getCapitalCase(getCamelCase(augmentedNode.getName(),
-                        null)))
-                        && !imports.contains(getCapitalCase(getCamelCase(augmentedNode.getName(), null)) + BUILDER)) {
-                    insertDataIntoJavaFile(file, imports);
-                }
-            }
-        }
-    }
-
-    /**
      * Writes data to the specific generated file.
      *
      * @param file        generated file
@@ -575,32 +544,12 @@
     }
 
     /**
-     * Returns resolved augments for manager classes.
-     *
-     * @param parent parent node
-     * @return resolved augments for manager classes
-     */
-    public static Map<YangAtomicPath, YangAugment> getResolvedAugmentsForManager(YangNode parent) {
-        Map<YangAtomicPath, YangAugment> resolvedAugmentsForManager = new HashMap<>();
-        YangNodeIdentifier nodeId;
-        List<YangAtomicPath> targets = new ArrayList<>();
-        for (YangAugment augment : getListOfAugments(parent)) {
-            nodeId = augment.getTargetNode().get(0).getNodeIdentifier();
-            if (validateNodeIdentifierInSet(nodeId, targets)) {
-                targets.add(augment.getTargetNode().get(0));
-                resolvedAugmentsForManager.put(augment.getTargetNode().get(0), augment);
-            }
-        }
-        return resolvedAugmentsForManager;
-    }
-
-    /**
      * Returns set of node identifiers.
      *
      * @param parent parent node
      * @return set of node identifiers
      */
-    public static List<YangAtomicPath> getSetOfNodeIdentifiers(YangNode parent) {
+    static List<YangAtomicPath> getSetOfNodeIdentifiers(YangNode parent) {
 
         List<YangAtomicPath> targets = new ArrayList<>();
         YangNodeIdentifier nodeId;
@@ -649,7 +598,6 @@
      * @param parent parent node
      */
     public static void addResolvedAugmentedDataNodeImports(YangNode parent) {
-        Map<YangAtomicPath, YangAugment> resolvedAugmentsForManager = getResolvedAugmentsForManager(parent);
         List<YangAtomicPath> targets = getSetOfNodeIdentifiers(parent);
         TempJavaCodeFragmentFiles tempJavaCodeFragmentFiles = ((JavaCodeGeneratorInfo) parent)
                 .getTempJavaCodeFragmentFiles();
@@ -658,7 +606,7 @@
         String curNodeName;
         JavaFileInfo parentInfo = ((JavaFileInfoContainer) parent).getJavaFileInfo();
         for (YangAtomicPath nodeId : targets) {
-            augmentedNode = resolvedAugmentsForManager.get(nodeId).getResolveNodeInPath().get(nodeId);
+            augmentedNode = nodeId.getResolvedNode().getParent();
             if (((JavaFileInfoContainer) augmentedNode).getJavaFileInfo().getJavaName() != null) {
                 curNodeName = ((JavaFileInfoContainer) augmentedNode).getJavaFileInfo().getJavaName();
             } else {
@@ -682,8 +630,8 @@
      * @param pluginConfig  plugin configurations
      * @return qualified type info of augmented node
      */
-    public static JavaQualifiedTypeInfo getQualifiedTypeInfoOfAugmentedNode(YangNode augmentedNode, String curNodeName,
-                                                                            YangPluginConfig pluginConfig) {
+    private static JavaQualifiedTypeInfo getQualifiedTypeInfoOfAugmentedNode(YangNode augmentedNode, String curNodeName,
+                                                                             YangPluginConfig pluginConfig) {
         JavaQualifiedTypeInfo javaQualifiedTypeInfo = getQualifiedTypeInfoOfCurNode(augmentedNode,
                 getCapitalCase(curNodeName));
         if (javaQualifiedTypeInfo.getPkgInfo() == null) {
@@ -719,7 +667,7 @@
      * @param parent        parent node
      * @return augmented class name for data methods in manager and service
      */
-    public static String getAugmentedClassNameForDataMethods(YangNode augmentedNode, YangNode parent) {
+    static String getAugmentedClassNameForDataMethods(YangNode augmentedNode, YangNode parent) {
         String curNodeName;
         JavaQualifiedTypeInfo javaQualifiedTypeInfo;
         JavaFileInfo parentInfo = ((JavaFileInfoContainer) parent).getJavaFileInfo();
@@ -751,7 +699,7 @@
      * @param pluginConfig plugin configurations
      * @return parent node name for data methods in manager and service
      */
-    public static String getParentNodeNameForDataMethods(YangNode parent, YangPluginConfig pluginConfig) {
+    static String getParentNodeNameForDataMethods(YangNode parent, YangPluginConfig pluginConfig) {
         JavaFileInfo parentInfo = ((JavaFileInfoContainer) parent).getJavaFileInfo();
         if (parentInfo.getJavaName() != null) {
             return getCapitalCase(parentInfo.getJavaName());
diff --git a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/MethodsGenerator.java b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/MethodsGenerator.java
index ea7824f..a8159a6 100644
--- a/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/MethodsGenerator.java
+++ b/utils/yangutils/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/utils/MethodsGenerator.java
@@ -19,49 +19,54 @@
 import java.util.List;
 import java.util.Map;
 
+import org.onosproject.yangutils.datamodel.YangAtomicPath;
+import org.onosproject.yangutils.datamodel.YangAugmentableNode;
 import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangLeafList;
 import org.onosproject.yangutils.datamodel.YangLeavesHolder;
-import org.onosproject.yangutils.datamodel.YangAtomicPath;
-import org.onosproject.yangutils.datamodel.YangAugment;
 import org.onosproject.yangutils.datamodel.YangNode;
 import org.onosproject.yangutils.datamodel.YangType;
 import org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaAttributeInfo;
-import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
+import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaBeanFragmentFiles;
 import org.onosproject.yangutils.utils.io.impl.JavaDocGen;
 import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
+import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.BINARY;
+import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.BITS;
+import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.BOOLEAN;
 import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.DECIMAL64;
-import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.INT8;
+import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.EMPTY;
 import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.INT16;
 import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.INT32;
 import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.INT64;
-import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.UINT8;
+import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.INT8;
 import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.UINT16;
-import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.BOOLEAN;
-import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.UINT64;
 import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.UINT32;
+import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.UINT64;
+import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.UINT8;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_SUBJECT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_SERVICE_AND_MANAGER;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getAugmentedClassNameForDataMethods;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getParentNodeNameForDataMethods;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getResolvedAugmentsForManager;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getSetOfNodeIdentifiers;
 import static org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles.getJavaAttributeOfLeaf;
 import static org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles.getJavaAttributeOfLeafList;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getAugmentedClassNameForDataMethods;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getParentNodeNameForDataMethods;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaFileGeneratorUtils.getSetOfNodeIdentifiers;
 import static org.onosproject.yangutils.utils.UtilConstants.ACTIVATE;
 import static org.onosproject.yangutils.utils.UtilConstants.ACTIVATE_ANNOTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.ADD_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.AND;
-import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTATION;
+import static org.onosproject.yangutils.utils.UtilConstants.APP_INSTANCE;
 import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTED;
+import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTED_INFO;
 import static org.onosproject.yangutils.utils.UtilConstants.BASE64;
+import static org.onosproject.yangutils.utils.UtilConstants.BASE_CLASS;
 import static org.onosproject.yangutils.utils.UtilConstants.BIG_DECIMAL;
 import static org.onosproject.yangutils.utils.UtilConstants.BIG_INTEGER;
+import static org.onosproject.yangutils.utils.UtilConstants.BITSET;
 import static org.onosproject.yangutils.utils.UtilConstants.BOOLEAN_DATA_TYPE;
 import static org.onosproject.yangutils.utils.UtilConstants.BOOLEAN_WRAPPER;
 import static org.onosproject.yangutils.utils.UtilConstants.BUILD;
@@ -75,6 +80,7 @@
 import static org.onosproject.yangutils.utils.UtilConstants.CLASS_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_CURLY_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.CLOSE_PARENTHESIS;
+import static org.onosproject.yangutils.utils.UtilConstants.COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.COLON;
 import static org.onosproject.yangutils.utils.UtilConstants.COMMA;
 import static org.onosproject.yangutils.utils.UtilConstants.DEACTIVATE;
@@ -91,17 +97,27 @@
 import static org.onosproject.yangutils.utils.UtilConstants.EXCEPTION;
 import static org.onosproject.yangutils.utils.UtilConstants.EXCEPTION_VAR;
 import static org.onosproject.yangutils.utils.UtilConstants.FALSE;
+import static org.onosproject.yangutils.utils.UtilConstants.FILTER_CONTENT_MATCH;
+import static org.onosproject.yangutils.utils.UtilConstants.FILTER_LEAF;
+import static org.onosproject.yangutils.utils.UtilConstants.FILTER_LEAF_LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.FOR;
 import static org.onosproject.yangutils.utils.UtilConstants.FOUR_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.FROM_STRING_METHOD_NAME;
 import static org.onosproject.yangutils.utils.UtilConstants.FROM_STRING_PARAM_NAME;
 import static org.onosproject.yangutils.utils.UtilConstants.GET;
 import static org.onosproject.yangutils.utils.UtilConstants.GET_DECODER;
+import static org.onosproject.yangutils.utils.UtilConstants.GET_FILTER_LEAF;
+import static org.onosproject.yangutils.utils.UtilConstants.GET_FILTER_LEAF_LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.GET_METHOD_PREFIX;
+import static org.onosproject.yangutils.utils.UtilConstants.GET_OPERATION_TYPE;
+import static org.onosproject.yangutils.utils.UtilConstants.GET_SELECT_LEAF;
+import static org.onosproject.yangutils.utils.UtilConstants.GET_SELECT_LEAF_LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.GOOGLE_MORE_OBJECT_METHOD_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.HASH;
 import static org.onosproject.yangutils.utils.UtilConstants.HASH_CODE_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.IF;
+import static org.onosproject.yangutils.utils.UtilConstants.ILLEGAL_ARGUMENT_EXCEPTION;
+import static org.onosproject.yangutils.utils.UtilConstants.ILLEGAL_ARGUMENT_EXCEPTION_MSG;
 import static org.onosproject.yangutils.utils.UtilConstants.INSTANCE_OF;
 import static org.onosproject.yangutils.utils.UtilConstants.INT;
 import static org.onosproject.yangutils.utils.UtilConstants.INTEGER_WRAPPER;
@@ -111,6 +127,7 @@
 import static org.onosproject.yangutils.utils.UtilConstants.MAP;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW;
 import static org.onosproject.yangutils.utils.UtilConstants.NEW_LINE;
+import static org.onosproject.yangutils.utils.UtilConstants.NOT;
 import static org.onosproject.yangutils.utils.UtilConstants.NULL;
 import static org.onosproject.yangutils.utils.UtilConstants.OBJ;
 import static org.onosproject.yangutils.utils.UtilConstants.OBJECT;
@@ -119,6 +136,10 @@
 import static org.onosproject.yangutils.utils.UtilConstants.OMIT_NULL_VALUE_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.OPEN_CURLY_BRACKET;
 import static org.onosproject.yangutils.utils.UtilConstants.OPEN_PARENTHESIS;
+import static org.onosproject.yangutils.utils.UtilConstants.OPERATION;
+import static org.onosproject.yangutils.utils.UtilConstants.OPERATION_ENUM;
+import static org.onosproject.yangutils.utils.UtilConstants.OP_PARAM_TYPE;
+import static org.onosproject.yangutils.utils.UtilConstants.OR_OPERATION;
 import static org.onosproject.yangutils.utils.UtilConstants.OTHER;
 import static org.onosproject.yangutils.utils.UtilConstants.OVERRIDE;
 import static org.onosproject.yangutils.utils.UtilConstants.PARSE_BOOLEAN;
@@ -129,15 +150,24 @@
 import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
 import static org.onosproject.yangutils.utils.UtilConstants.PUBLIC;
 import static org.onosproject.yangutils.utils.UtilConstants.PUT;
+import static org.onosproject.yangutils.utils.UtilConstants.QUESTION_MARK;
 import static org.onosproject.yangutils.utils.UtilConstants.QUOTES;
+import static org.onosproject.yangutils.utils.UtilConstants.RECEIVED_OBJECT;
+import static org.onosproject.yangutils.utils.UtilConstants.REPLACE_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.RETURN;
 import static org.onosproject.yangutils.utils.UtilConstants.RPC_INPUT_VAR_NAME;
+import static org.onosproject.yangutils.utils.UtilConstants.SELECT_LEAF;
+import static org.onosproject.yangutils.utils.UtilConstants.SELECT_LEAF_LIST;
 import static org.onosproject.yangutils.utils.UtilConstants.SEMI_COLAN;
 import static org.onosproject.yangutils.utils.UtilConstants.SET_METHOD_PREFIX;
+import static org.onosproject.yangutils.utils.UtilConstants.SET_OPERATION_TYPE;
 import static org.onosproject.yangutils.utils.UtilConstants.SHORT;
 import static org.onosproject.yangutils.utils.UtilConstants.SHORT_WRAPPER;
+import static org.onosproject.yangutils.utils.UtilConstants.SINGLE_QUOTE;
 import static org.onosproject.yangutils.utils.UtilConstants.SIXTEEN_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.SPACE;
+import static org.onosproject.yangutils.utils.UtilConstants.SPLIT_STRING;
+import static org.onosproject.yangutils.utils.UtilConstants.SQUARE_BRACKETS;
 import static org.onosproject.yangutils.utils.UtilConstants.STARTED_LOG_INFO;
 import static org.onosproject.yangutils.utils.UtilConstants.STATIC;
 import static org.onosproject.yangutils.utils.UtilConstants.STOPPED_LOG_INFO;
@@ -145,39 +175,18 @@
 import static org.onosproject.yangutils.utils.UtilConstants.SUFFIX_S;
 import static org.onosproject.yangutils.utils.UtilConstants.SWITCH;
 import static org.onosproject.yangutils.utils.UtilConstants.THIS;
+import static org.onosproject.yangutils.utils.UtilConstants.THROW;
 import static org.onosproject.yangutils.utils.UtilConstants.TMP_VAL;
 import static org.onosproject.yangutils.utils.UtilConstants.TO;
+import static org.onosproject.yangutils.utils.UtilConstants.TRIM_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.TRUE;
 import static org.onosproject.yangutils.utils.UtilConstants.TRY;
 import static org.onosproject.yangutils.utils.UtilConstants.TWELVE_SPACE_INDENTATION;
 import static org.onosproject.yangutils.utils.UtilConstants.VALUE;
 import static org.onosproject.yangutils.utils.UtilConstants.VOID;
 import static org.onosproject.yangutils.utils.UtilConstants.YANG_AUGMENTED_INFO;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_AUGMENTED_OP_PARAM_INFO;
 import static org.onosproject.yangutils.utils.UtilConstants.YANG_UTILS_TODO;
-import static org.onosproject.yangutils.utils.UtilConstants.OPERATION;
-import static org.onosproject.yangutils.utils.UtilConstants.BITSET;
-import static org.onosproject.yangutils.utils.UtilConstants.GET_FILTER_LEAF;
-import static org.onosproject.yangutils.utils.UtilConstants.FILTER_LEAF;
-import static org.onosproject.yangutils.utils.UtilConstants.GET_SELECT_LEAF;
-import static org.onosproject.yangutils.utils.UtilConstants.SELECT_LEAF;
-import static org.onosproject.yangutils.utils.UtilConstants.GET_FILTER_LEAF_LIST;
-import static org.onosproject.yangutils.utils.UtilConstants.FILTER_LEAF_LIST;
-import static org.onosproject.yangutils.utils.UtilConstants.GET_SELECT_LEAF_LIST;
-import static org.onosproject.yangutils.utils.UtilConstants.SELECT_LEAF_LIST;
-import static org.onosproject.yangutils.utils.UtilConstants.OPERATION_ENUM;
-import static org.onosproject.yangutils.utils.UtilConstants.GET_OPERATION_TYPE;
-import static org.onosproject.yangutils.utils.UtilConstants.OP_PARAM_TYPE;
-import static org.onosproject.yangutils.utils.UtilConstants.SET_OPERATION_TYPE;
-import static org.onosproject.yangutils.utils.UtilConstants.RECEIVED_OBJECT;
-import static org.onosproject.yangutils.utils.UtilConstants.FILTER_CONTENT_MATCH;
-import static org.onosproject.yangutils.utils.UtilConstants.APP_INSTANCE;
-import static org.onosproject.yangutils.utils.UtilConstants.NOT;
-import static org.onosproject.yangutils.utils.UtilConstants.OR_OPERATION;
-import static org.onosproject.yangutils.utils.UtilConstants.REPLACE_STRING;
-import static org.onosproject.yangutils.utils.UtilConstants.SINGLE_QUOTE;
-import static org.onosproject.yangutils.utils.UtilConstants.SPLIT_STRING;
-import static org.onosproject.yangutils.utils.UtilConstants.SQUARE_BRACKETS;
-import static org.onosproject.yangutils.utils.UtilConstants.TRIM_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.ZERO;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.BUILD_METHOD;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.CONSTRUCTOR;
@@ -190,14 +199,11 @@
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType.TYPE_CONSTRUCTOR;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.generateForAddAugmentation;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.generateForGetAugmentation;
-import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.generateForTypeConstructor;
 import static org.onosproject.yangutils.utils.io.impl.JavaDocGen.getJavaDoc;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCamelCase;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCapitalCase;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getSmallCase;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.trimAtLast;
-import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.BINARY;
-import static org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes.BITS;
 
 /**
  * Represents generator for methods of generated files based on the file type.
@@ -205,7 +211,6 @@
 public final class MethodsGenerator {
     private static final String BITS_STRING_ARRAY_VAR = "bitsTemp";
     private static final String BIT_TEMP_VAR = "bitTemp";
-    private static final String FOR_TYPE = " for type ";
 
     /**
      * Creates an instance of method generator.
@@ -588,9 +593,9 @@
     /**
      * Returns constructor string for op param class.
      *
-     * @param yangName      class name
-     * @param pluginConfig    plugin configurations
-     * @return     constructor string
+     * @param yangName     class name
+     * @param pluginConfig plugin configurations
+     * @return constructor string
      */
     public static String getOpParamConstructorStart(String yangName, YangPluginConfig pluginConfig) {
 
@@ -600,6 +605,7 @@
                 + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE;
         return javadoc + constructor;
     }
+
     /**
      * Returns the constructor strings for class file.
      *
@@ -718,11 +724,11 @@
     /**
      * Returns to string leaf for get method.
      *
-     * @return  string leaf for get method
+     * @return string leaf for get method
      */
     public static String getToStringLeafgetter() {
         return NEW_LINE + NEW_LINE + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + BITSET + SPACE + GET_FILTER_LEAF
-                +  OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE
+                + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE
                 + EIGHT_SPACE_INDENTATION + RETURN + SPACE + FILTER_LEAF + SEMI_COLAN + NEW_LINE
                 + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
     }
@@ -734,7 +740,7 @@
      */
     public static String getToStringSelectLeafgetter() {
         return NEW_LINE + NEW_LINE + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + BITSET + SPACE + GET_SELECT_LEAF
-                +  OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE
+                + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE
                 + EIGHT_SPACE_INDENTATION + RETURN + SPACE + SELECT_LEAF + SEMI_COLAN + NEW_LINE
                 + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
     }
@@ -742,11 +748,11 @@
     /**
      * Returns to string leaf list for get method.
      *
-     * @return  string leaf list for get method
+     * @return string leaf list for get method
      */
     public static String getToStringLeafListgetter() {
         return NEW_LINE + NEW_LINE + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + BITSET + SPACE + GET_FILTER_LEAF_LIST
-                +  OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE
+                + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE
                 + EIGHT_SPACE_INDENTATION + RETURN + SPACE + FILTER_LEAF_LIST + SEMI_COLAN + NEW_LINE
                 + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
     }
@@ -758,7 +764,7 @@
      */
     public static String getToStringSelectLeafListgetter() {
         return NEW_LINE + NEW_LINE + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + BITSET + SPACE + GET_SELECT_LEAF_LIST
-                +  OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE
+                + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE
                 + EIGHT_SPACE_INDENTATION + RETURN + SPACE + SELECT_LEAF_LIST + SEMI_COLAN + NEW_LINE
                 + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
     }
@@ -770,7 +776,7 @@
      */
     public static String getOperationTypegetter() {
         return NEW_LINE + NEW_LINE + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + OPERATION_ENUM
-                + SPACE + GET_OPERATION_TYPE +  OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE
+                + SPACE + GET_OPERATION_TYPE + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + SPACE
                 + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION + RETURN + SPACE
                 + OP_PARAM_TYPE + SEMI_COLAN + NEW_LINE + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
     }
@@ -782,7 +788,7 @@
      */
     public static String getOperationTypeSetter() {
         return NEW_LINE + NEW_LINE + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + VOID + SPACE + SET_OPERATION_TYPE
-                +  OPEN_PARENTHESIS + OPERATION_ENUM + SPACE + getSmallCase(OPERATION_ENUM) + CLOSE_PARENTHESIS
+                + OPEN_PARENTHESIS + OPERATION_ENUM + SPACE + getSmallCase(OPERATION_ENUM) + CLOSE_PARENTHESIS
                 + SPACE + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION + THIS + PERIOD
                 + OP_PARAM_TYPE + SPACE + EQUAL + SPACE + getSmallCase(OPERATION_ENUM) + SEMI_COLAN + NEW_LINE
                 + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET + NEW_LINE;
@@ -791,10 +797,10 @@
     /**
      * Returns string for leaf set method.
      *
-     * @param className   class name
-     * @param curnode    current YANG node
+     * @param className    class name
+     * @param curnode      current YANG node
      * @param pluginConfig plugin configurations
-     * @return  string for leaf set method
+     * @return string for leaf set method
      */
     public static String getSetterForLeaf(String className, YangNode curnode, YangPluginConfig pluginConfig) {
 
@@ -831,9 +837,9 @@
     /**
      * Returns string for leaf list set method.
      *
-     * @param className  class name
-     * @param curnode    current YANG node
-     * @param pluginConfig  plugin configurations
+     * @param className    class name
+     * @param curnode      current YANG node
+     * @param pluginConfig plugin configurations
      * @return string for leaf list set method
      */
     public static String getSetterForLeafList(String className, YangNode curnode, YangPluginConfig pluginConfig) {
@@ -849,7 +855,7 @@
             if (listOfLeafList !=  null && !listOfLeafList.isEmpty()) {
                 for (YangLeafList leafList : listOfLeafList) {
                     JavaAttributeInfo javaAttributeInfo = getJavaAttributeOfLeafList(tempFragmentFiles, leafList,
-                                                                                     pluginConfig);
+                            pluginConfig);
                     String attributeName = javaAttributeInfo.getAttributeName();
                     String attrQuaifiedType = getReturnType(javaAttributeInfo);
                     if (javaAttributeInfo.isListAttr()) {
@@ -888,38 +894,44 @@
                 || dataType == UINT32
                 || dataType == UINT64
                 || dataType == DECIMAL64
-                || dataType == BOOLEAN;
+                || dataType == BOOLEAN
+                || dataType == EMPTY;
     }
 
     /**
      * Returns string for is filter content match method.
      *
-     * @param className   class name
-     * @param curnode   current YANG node
-     * @param pluginConfig   plugin configurations
-     * @return  string for is filter content match method
+     * @param className    class name
+     * @param curNode      current YANG node
+     * @param pluginConfig plugin configurations
+     * @return string for is filter content match method
      */
-    public static String getisFilterContentMatch(String className, YangNode curnode, YangPluginConfig pluginConfig) {
+    public static String getIsFilterContentMatch(String className, YangNode curNode, YangPluginConfig pluginConfig) {
 
         int numleaf = 1;
-        String filterMethod = "";
-        TempJavaBeanFragmentFiles tempFragmentFiles = ((JavaCodeGeneratorInfo) curnode)
+        String filterMethod = NEW_LINE + NEW_LINE + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + BOOLEAN_DATA_TYPE
+                + SPACE + FILTER_CONTENT_MATCH + OPEN_PARENTHESIS + getCapitalCase(OBJECT)
+                + SPACE + OBJ +
+                CLOSE_PARENTHESIS + SPACE
+                + OPEN_CURLY_BRACKET + NEW_LINE;
+        TempJavaBeanFragmentFiles tempFragmentFiles = ((JavaCodeGeneratorInfo) curNode)
                 .getTempJavaCodeFragmentFiles().getBeanTempFiles();
+        filterMethod = filterMethod + EIGHT_SPACE_INDENTATION + getCapitalCase(DEFAULT)
+                + getCapitalCase(className) + SPACE + APP_INSTANCE + SPACE + EQUAL + SPACE + OPEN_PARENTHESIS +
+                getCapitalCase(DEFAULT) + getCapitalCase(className) + CLOSE_PARENTHESIS + OBJ +
+                SEMI_COLAN + NEW_LINE;
+        if (curNode instanceof YangAugmentableNode) {
+            filterMethod = filterMethod + getAugmentableOpParamSyntax();
+        }
 
-        if (curnode instanceof YangLeavesHolder) {
-            YangLeavesHolder leavesHolder = (YangLeavesHolder) curnode;
+        if (curNode instanceof YangLeavesHolder) {
+            YangLeavesHolder leavesHolder = (YangLeavesHolder) curNode;
             List<YangLeaf> leaves = leavesHolder.getListOfLeaf();
             List<YangLeafList> listOfLeafList = leavesHolder.getListOfLeafList();
-            if (leaves !=  null || listOfLeafList != null) {
-                filterMethod = NEW_LINE + NEW_LINE + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + BOOLEAN_DATA_TYPE
-                        + SPACE + FILTER_CONTENT_MATCH + OPEN_PARENTHESIS + getCapitalCase(DEFAULT)
-                        + getCapitalCase(className) + SPACE + APP_INSTANCE + CLOSE_PARENTHESIS + SPACE
-                        + OPEN_CURLY_BRACKET + NEW_LINE;
-            }
-            if (leaves !=  null) {
+            if (leaves != null) {
                 for (YangLeaf leaf : leaves) {
                     JavaAttributeInfo javaAttributeInfo = getJavaAttributeOfLeaf(tempFragmentFiles, leaf,
-                                                                                 pluginConfig);
+                            pluginConfig);
                     String attributeName = javaAttributeInfo.getAttributeName();
 
                     String attrQuaifiedType = "";
@@ -929,10 +941,10 @@
                                 + CLOSE_PARENTHESIS;
                     } else {
                         attrQuaifiedType = APP_INSTANCE + PERIOD + attributeName + OPEN_PARENTHESIS + CLOSE_PARENTHESIS
-                                + SPACE + EQUAL + EQUAL + SPACE + NULL + SPACE + OR_OPERATION + SPACE + OPEN_PARENTHESIS
+                                + SPACE + EQUAL + EQUAL + SPACE + NULL + SPACE + OR_OPERATION + SPACE
                                 + NOT + OPEN_PARENTHESIS + attributeName + OPEN_PARENTHESIS + CLOSE_PARENTHESIS
                                 + PERIOD + EQUALS_STRING + OPEN_PARENTHESIS + APP_INSTANCE + PERIOD
-                                + attributeName + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + CLOSE_PARENTHESIS
+                                + attributeName + OPEN_PARENTHESIS + CLOSE_PARENTHESIS
                                 + CLOSE_PARENTHESIS + CLOSE_PARENTHESIS;
                     }
 
@@ -948,11 +960,11 @@
                 }
             }
 
-            if (listOfLeafList !=  null) {
+            if (listOfLeafList != null) {
                 numleaf = 1;
                 for (YangLeafList leafList : listOfLeafList) {
                     JavaAttributeInfo javaAttributeInfo = getJavaAttributeOfLeafList(tempFragmentFiles, leafList,
-                                                                                 pluginConfig);
+                            pluginConfig);
                     String attributeName = javaAttributeInfo.getAttributeName();
                     String attrQuaifiedType = "";
                     if (isPrimitiveDataType(leafList.getDataType().getDataType())) {
@@ -964,7 +976,8 @@
                                 + SPACE + EQUAL + EQUAL + SPACE + NULL + OR_OPERATION + OPEN_PARENTHESIS + NOT
                                 + OPEN_PARENTHESIS + attributeName + OPEN_PARENTHESIS + CLOSE_PARENTHESIS
                                 + PERIOD + EQUALS_STRING + OPEN_PARENTHESIS + APP_INSTANCE + PERIOD
-                                + attributeName + OPEN_PARENTHESIS + CLOSE_PARENTHESIS;
+                                + attributeName + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + CLOSE_PARENTHESIS
+                                + CLOSE_PARENTHESIS + CLOSE_PARENTHESIS;
                     }
 
                     filterMethod = filterMethod + EIGHT_SPACE_INDENTATION + IF + SPACE + OPEN_PARENTHESIS
@@ -987,8 +1000,53 @@
         return filterMethod;
     }
 
+    /*Returns method string for op parms augmented syntax*/
+    private static String getAugmentableOpParamSyntax() {
+        return EIGHT_SPACE_INDENTATION + FOR + SPACE + OPEN_PARENTHESIS + YANG_AUGMENTED_INFO + SPACE +
+                getSmallCase(YANG_AUGMENTED_INFO) + SPACE + COLAN + SPACE + APP_INSTANCE +
+                PERIOD + GET_METHOD_PREFIX + YANG_AUGMENTED_INFO + MAP + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + PERIOD
+                + VALUE + "s" + OPEN_PARENTHESIS + CLOSE_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET +
+                NEW_LINE + TWELVE_SPACE_INDENTATION + IF + SPACE + OPEN_PARENTHESIS + NOT + OPEN_PARENTHESIS +
+                getSmallCase(YANG_AUGMENTED_INFO) + SPACE + INSTANCE_OF + SPACE + YANG_AUGMENTED_OP_PARAM_INFO +
+                CLOSE_PARENTHESIS + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE +
+                SIXTEEN_SPACE_INDENTATION + THROW + SPACE + NEW + SPACE + ILLEGAL_ARGUMENT_EXCEPTION +
+                OPEN_PARENTHESIS +
+                ILLEGAL_ARGUMENT_EXCEPTION_MSG + CLOSE_PARENTHESIS + SEMI_COLAN + NEW_LINE + TWELVE_SPACE_INDENTATION +
+                CLOSE_CURLY_BRACKET + NEW_LINE + NEW_LINE + TWELVE_SPACE_INDENTATION + YANG_AUGMENTED_INFO + SPACE +
+                getSmallCase(YANG_AUGMENTED_OP_PARAM_INFO) + SPACE + EQUAL + SPACE + APP_INSTANCE + PERIOD +
+                GET_METHOD_PREFIX + AUGMENTED_INFO + OPEN_PARENTHESIS + OPEN_PARENTHESIS + OPEN_PARENTHESIS +
+                YANG_AUGMENTED_OP_PARAM_INFO + CLOSE_PARENTHESIS + SPACE + getSmallCase(YANG_AUGMENTED_INFO) +
+                CLOSE_PARENTHESIS + PERIOD + GET_METHOD_PREFIX + BASE_CLASS + CLOSE_PARENTHESIS + SEMI_COLAN +
+                NEW_LINE + TWELVE_SPACE_INDENTATION + IF + OPEN_PARENTHESIS + NOT +
+                OPEN_PARENTHESIS + OPEN_PARENTHESIS + YANG_AUGMENTED_OP_PARAM_INFO + CLOSE_PARENTHESIS + SPACE +
+                getSmallCase(YANG_AUGMENTED_INFO) + CLOSE_PARENTHESIS
+                + PERIOD + "isFilterContentMatch" + OPEN_PARENTHESIS +
+                getSmallCase(YANG_AUGMENTED_OP_PARAM_INFO) + CLOSE_PARENTHESIS +
+                CLOSE_PARENTHESIS +
+                SPACE + OPEN_CURLY_BRACKET + NEW_LINE + SIXTEEN_SPACE_INDENTATION + RETURN + SPACE + FALSE +
+                SEMI_COLAN + NEW_LINE + TWELVE_SPACE_INDENTATION
+                + CLOSE_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION + CLOSE_CURLY_BRACKET + NEW_LINE;
+    }
+
     /**
-     * Returns omit null value string.
+     * Returns implementation of get base class method for op param files.
+     *
+     * @param baseClassName base class name
+     * @return implementation of get base class method for op param files
+     */
+    public static String getBaseClassMethodImpl(String baseClassName) {
+        return NEW_LINE + getOverRideString() + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + CLASS_STRING +
+                DIAMOND_OPEN_BRACKET +
+                QUESTION_MARK +
+                DIAMOND_CLOSE_BRACKET + SPACE + GET_METHOD_PREFIX + BASE_CLASS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE +
+                EIGHT_SPACE_INDENTATION + RETURN + SPACE + baseClassName + PERIOD + CLASS + SEMI_COLAN + NEW_LINE +
+                FOUR_SPACE_INDENTATION +
+                CLOSE_CURLY_BRACKET;
+
+    }
+
+    /*
+     * Retruns omit null value string.
      *
      * @return omit null value string
      */
@@ -1047,8 +1105,7 @@
      * Return from string method's body string.
      *
      * @param attr                    attribute info
-     * @param fromStringAttributeInfo attribute info for the from string
-     *                                wrapper type
+     * @param fromStringAttributeInfo attribute info for the from string wrapper type
      * @return from string method's body string
      */
     public static String getFromStringMethod(JavaAttributeInfo attr,
@@ -1128,7 +1185,7 @@
                     + FROM_STRING_PARAM_NAME + CLOSE_PARENTHESIS + SEMI_COLAN;
         } else {
             String parseFromStringMethod = getParseFromStringMethod(targetDataType,
-                                                                    fromStringAttributeInfo.getAttributeType());
+                    fromStringAttributeInfo.getAttributeType());
             return targetDataType + SPACE + TMP_VAL + SPACE + EQUAL + SPACE + parseFromStringMethod
                     + OPEN_PARENTHESIS + FROM_STRING_PARAM_NAME + CLOSE_PARENTHESIS + SEMI_COLAN;
         }
@@ -1324,13 +1381,12 @@
      *
      * @return implementation of add augmentation
      */
-    public static String getAddAugmentInfoMethodImpl() {
-        return NEW_LINE + generateForAddAugmentation() + FOUR_SPACE_INDENTATION +
-                PUBLIC + SPACE + VOID + SPACE + ADD_STRING
-                + AUGMENTATION + OPEN_PARENTHESIS + YANG_AUGMENTED_INFO + SPACE + VALUE + COMMA + SPACE + CLASS_STRING +
-                SPACE + CLASS + OBJECT_STRING + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE +
-                EIGHT_SPACE_INDENTATION + getSmallCase(YANG_AUGMENTED_INFO) + MAP + PERIOD + PUT + OPEN_PARENTHESIS +
-                CLASS + OBJECT_STRING + COMMA + SPACE + VALUE +
+    static String getAddAugmentInfoMethodImpl() {
+        return NEW_LINE + generateForAddAugmentation() + FOUR_SPACE_INDENTATION + PUBLIC + SPACE + VOID + SPACE +
+                ADD_STRING + AUGMENTED_INFO + OPEN_PARENTHESIS + YANG_AUGMENTED_INFO + SPACE + VALUE + COMMA +
+                SPACE + CLASS_STRING + SPACE + CLASS + OBJECT_STRING + CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET +
+                NEW_LINE + EIGHT_SPACE_INDENTATION + getSmallCase(YANG_AUGMENTED_INFO) + MAP + PERIOD + PUT +
+                OPEN_PARENTHESIS + CLASS + OBJECT_STRING + COMMA + SPACE + VALUE +
                 CLOSE_PARENTHESIS + SEMI_COLAN + NEW_LINE + FOUR_SPACE_INDENTATION +
                 CLOSE_CURLY_BRACKET + NEW_LINE;
     }
@@ -1340,11 +1396,11 @@
      *
      * @return implementation of get augment info
      */
-    public static String getAugmentInfoImpl() {
+    static String getAugmentInfoImpl() {
 
         return generateForGetAugmentation() + FOUR_SPACE_INDENTATION + PUBLIC + SPACE +
                 YANG_AUGMENTED_INFO + SPACE + GET_METHOD_PREFIX +
-                YANG_AUGMENTED_INFO + OPEN_PARENTHESIS + CLASS_STRING + SPACE + CLASS + OBJECT_STRING +
+                AUGMENTED_INFO + OPEN_PARENTHESIS + CLASS_STRING + SPACE + CLASS + OBJECT_STRING +
                 CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION +
                 RETURN + SPACE + getSmallCase(YANG_AUGMENTED_INFO) + MAP + PERIOD + GET + OPEN_PARENTHESIS + CLASS +
                 OBJECT_STRING + CLOSE_PARENTHESIS + SEMI_COLAN + NEW_LINE + FOUR_SPACE_INDENTATION +
@@ -1352,6 +1408,23 @@
     }
 
     /**
+     * Returns implementation of get augment info.
+     *
+     * @return implementation of get augment info
+     */
+    static String getAugmentInfoMapImpl(YangPluginConfig pluginConfig) {
+
+        return getJavaDoc(GETTER_METHOD, getSmallCase(YANG_AUGMENTED_INFO) + MAP, false, pluginConfig)
+                + FOUR_SPACE_INDENTATION + PUBLIC + SPACE +
+                MAP + DIAMOND_OPEN_BRACKET + CLASS_STRING + DIAMOND_OPEN_BRACKET + QUESTION_MARK +
+                DIAMOND_CLOSE_BRACKET + COMMA + SPACE + YANG_AUGMENTED_INFO + DIAMOND_CLOSE_BRACKET + SPACE +
+                GET_METHOD_PREFIX + YANG_AUGMENTED_INFO + MAP + OPEN_PARENTHESIS +
+                CLOSE_PARENTHESIS + SPACE + OPEN_CURLY_BRACKET + NEW_LINE + EIGHT_SPACE_INDENTATION +
+                RETURN + SPACE + getSmallCase(YANG_AUGMENTED_INFO) + MAP + SEMI_COLAN + NEW_LINE
+                + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET + NEW_LINE;
+    }
+
+    /**
      * Returns enum's constructor.
      *
      * @param className enum's class name
@@ -1396,7 +1469,7 @@
                 + RETURN + SPACE + NULL + SEMI_COLAN + NEW_LINE + EIGHT_SPACE_INDENTATION + CLOSE_CURLY_BRACKET
                 + NEW_LINE + FOUR_SPACE_INDENTATION + CLOSE_CURLY_BRACKET;
 
-        return getJavaDoc(OF_METHOD, getCapitalCase(className) + FOR_TYPE + attrName, false, pluginConfig)
+        return getJavaDoc(OF_METHOD, getCapitalCase(className) + " for type" + attrName, false, pluginConfig)
                 + method;
     }
 
@@ -1475,24 +1548,6 @@
     }
 
     /**
-     * Returns copy constructor for augmented class.
-     *
-     * @param yangName    augmente class name
-     * @param augmentName augmented class name
-     * @return copy constructor for augmented class
-     */
-    public static String getAugmentedNodesConstructorStart(String yangName,
-                                                           String augmentName) {
-
-        String javadoc = generateForTypeConstructor(yangName);
-        String constructor = FOUR_SPACE_INDENTATION + PUBLIC + SPACE + yangName + BUILDER + OPEN_PARENTHESIS
-                + augmentName + PERIOD + augmentName + BUILDER + SPACE + VALUE + CLOSE_PARENTHESIS + SPACE
-                + OPEN_CURLY_BRACKET + NEW_LINE;
-        return javadoc + constructor;
-
-    }
-
-    /**
      * Returns the constructor strings for class file.
      *
      * @param attr         attribute info
@@ -1514,8 +1569,7 @@
      * @param parent parent node
      * @return augmented data getter and setter methods for service class
      */
-    public static String getAugmentsDataMethodForService(YangNode parent) {
-        Map<YangAtomicPath, YangAugment> resolvedAugmentsForManager = getResolvedAugmentsForManager(parent);
+    static String getAugmentsDataMethodForService(YangNode parent) {
         List<YangAtomicPath> targets = getSetOfNodeIdentifiers(parent);
         YangNode augmentedNode;
         String curNodeName;
@@ -1525,7 +1579,7 @@
         String returnType;
         YangPluginConfig pluginConfig = ((JavaFileInfoContainer) parent).getJavaFileInfo().getPluginConfig();
         for (YangAtomicPath nodeId : targets) {
-            augmentedNode = resolvedAugmentsForManager.get(nodeId).getResolveNodeInPath().get(nodeId);
+            augmentedNode = nodeId.getResolvedNode().getParent();
             if (((JavaFileInfoContainer) augmentedNode).getJavaFileInfo().getJavaName() != null) {
                 curNodeName = ((JavaFileInfoContainer) augmentedNode).getJavaFileInfo().getJavaName();
             } else {
@@ -1533,7 +1587,7 @@
                         .getConflictResolver()));
             }
             returnType = getAugmentedClassNameForDataMethods(augmentedNode, parent);
-            parentName = getParentNodeNameForDataMethods(augmentedNode.getParent(), pluginConfig);
+            parentName = getParentNodeNameForDataMethods(augmentedNode, pluginConfig);
             method = getJavaDoc(GETTER_METHOD, getSmallCase(AUGMENTED + parentName + curNodeName), false,
                     pluginConfig) + getGetterForInterface(AUGMENTED + parentName
                             + getCapitalCase(curNodeName),
@@ -1558,8 +1612,7 @@
      * @param parent parent node
      * @return augmented data getter and setter methods for manager class
      */
-    public static String getAugmentsDataMethodForManager(YangNode parent) {
-        Map<YangAtomicPath, YangAugment> resolvedAugmentsForManager = getResolvedAugmentsForManager(parent);
+    static String getAugmentsDataMethodForManager(YangNode parent) {
         List<YangAtomicPath> targets = getSetOfNodeIdentifiers(parent);
         YangNode augmentedNode;
         String curNodeName;
@@ -1569,7 +1622,7 @@
         String parentName;
         YangPluginConfig pluginConfig = ((JavaFileInfoContainer) parent).getJavaFileInfo().getPluginConfig();
         for (YangAtomicPath nodeId : targets) {
-            augmentedNode = resolvedAugmentsForManager.get(nodeId).getResolveNodeInPath().get(nodeId);
+            augmentedNode = nodeId.getResolvedNode().getParent();
             if (((JavaFileInfoContainer) augmentedNode).getJavaFileInfo().getJavaName() != null) {
                 curNodeName = ((JavaFileInfoContainer) augmentedNode).getJavaFileInfo().getJavaName();
             } else {
@@ -1577,7 +1630,7 @@
                         .getConflictResolver()));
             }
             returnType = getAugmentedClassNameForDataMethods(augmentedNode, parent);
-            parentName = getParentNodeNameForDataMethods(augmentedNode.getParent(), pluginConfig);
+            parentName = getParentNodeNameForDataMethods(augmentedNode, pluginConfig);
             method = getOverRideString() + getGetter(returnType, AUGMENTED
                             + parentName + getCapitalCase(curNodeName),
                     GENERATE_SERVICE_AND_MANAGER) + NEW_LINE;