[ONOS-4711] Removed cyclic dependencies

Change-Id: I9ffea9a1a1b72f6ed3a23c0edb04cfc37bd8e48e
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/AttributesJavaDataType.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/AttributesJavaDataType.java
new file mode 100644
index 0000000..a0840eb
--- /dev/null
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/AttributesJavaDataType.java
@@ -0,0 +1,447 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.yangutils.translator.tojava.javamodel;
+
+import java.util.Stack;
+import org.onosproject.yangutils.datamodel.YangDataTypes;
+import org.onosproject.yangutils.datamodel.YangDerivedInfo;
+import org.onosproject.yangutils.datamodel.YangEnumeration;
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.datamodel.YangType;
+import org.onosproject.yangutils.datamodel.YangTypeDef;
+import org.onosproject.yangutils.datamodel.YangUnion;
+import org.onosproject.yangutils.translator.exception.TranslatorException;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
+import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
+import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
+import org.onosproject.yangutils.utils.io.impl.YangToJavaNamingConflictUtil;
+
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.getCurNodePackage;
+import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getRootPackage;
+import static org.onosproject.yangutils.utils.UtilConstants.BIG_INTEGER;
+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.BYTE;
+import static org.onosproject.yangutils.utils.UtilConstants.BYTE_WRAPPER;
+import static org.onosproject.yangutils.utils.UtilConstants.INT;
+import static org.onosproject.yangutils.utils.UtilConstants.INTEGER_WRAPPER;
+import static org.onosproject.yangutils.utils.UtilConstants.JAVA_LANG;
+import static org.onosproject.yangutils.utils.UtilConstants.JAVA_MATH;
+import static org.onosproject.yangutils.utils.UtilConstants.LONG;
+import static org.onosproject.yangutils.utils.UtilConstants.LONG_WRAPPER;
+import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
+import static org.onosproject.yangutils.utils.UtilConstants.SHORT;
+import static org.onosproject.yangutils.utils.UtilConstants.SHORT_WRAPPER;
+import static org.onosproject.yangutils.utils.UtilConstants.STRING_DATA_TYPE;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_BINARY_CLASS;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_BITS_CLASS;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_DECIMAL64_CLASS;
+import static org.onosproject.yangutils.utils.UtilConstants.YANG_TYPES_PKG;
+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.getPackageDirPathFromJavaJPackage;
+
+/**
+ * Represents java data types info corresponding to YANG type.
+ */
+public final class AttributesJavaDataType {
+
+    /**
+     * Creates an instance of attribute java data type.
+     */
+    private AttributesJavaDataType() {
+    }
+
+    /**
+     * Returns java type.
+     *
+     * @param yangType YANG type
+     * @return java type
+     */
+    public static String getJavaDataType(YangType<?> yangType) {
+
+        YangDataTypes type = yangType.getDataType();
+
+        switch (type) {
+            case INT8:
+                return BYTE;
+            case INT16:
+                return SHORT;
+            case INT32:
+                return INT;
+            case INT64:
+                return LONG;
+            case UINT8:
+                return SHORT;
+            case UINT16:
+                return INT;
+            case UINT32:
+                return LONG;
+            case UINT64:
+                return BIG_INTEGER;
+            case BINARY:
+                return YANG_BINARY_CLASS;
+            case DECIMAL64:
+                return YANG_DECIMAL64_CLASS;
+            case STRING:
+                return STRING_DATA_TYPE;
+            case BOOLEAN:
+                return BOOLEAN_DATA_TYPE;
+            default:
+                throw new TranslatorException("given data type is not supported.");
+        }
+    }
+
+    /**
+     * Returns java import class.
+     *
+     * @param yangType     YANG type
+     * @param isListAttr   if the attribute need to be a list
+     * @param pluginConfig plugin configurations
+     * @return java import class
+     */
+    public static String getJavaImportClass(YangType<?> yangType, boolean isListAttr,
+                                            YangToJavaNamingConflictUtil pluginConfig) {
+
+        YangDataTypes type = yangType.getDataType();
+
+        if (isListAttr) {
+            switch (type) {
+                case INT8:
+                    return BYTE_WRAPPER;
+                case INT16:
+                    return SHORT_WRAPPER;
+                case INT32:
+                    return INTEGER_WRAPPER;
+                case INT64:
+                    return LONG_WRAPPER;
+                case UINT8:
+                    return SHORT_WRAPPER;
+                case UINT16:
+                    return INTEGER_WRAPPER;
+                case UINT32:
+                    return LONG_WRAPPER;
+                case UINT64:
+                    return BIG_INTEGER;
+                case DECIMAL64:
+                    return YANG_DECIMAL64_CLASS;
+                case STRING:
+                    return STRING_DATA_TYPE;
+                case BOOLEAN:
+                    return BOOLEAN_WRAPPER;
+                case ENUMERATION:
+                    return getCapitalCase(
+                            getCamelCase(((YangJavaEnumeration) yangType.getDataTypeExtendedInfo()).getName(),
+                                    pluginConfig));
+                case BITS:
+                    return YANG_BITS_CLASS;
+                case BINARY:
+                    return YANG_BINARY_CLASS;
+                case LEAFREF:
+                    //TODO:LEAFREF
+                    break;
+                case IDENTITYREF:
+                    //TODO:IDENTITYREF
+                    break;
+                case EMPTY:
+                    return BOOLEAN_WRAPPER;
+                case UNION:
+                    return getCapitalCase(getCamelCase(((YangJavaUnion) yangType.getDataTypeExtendedInfo()).getName(),
+                            pluginConfig));
+                case INSTANCE_IDENTIFIER:
+                    //TODO:INSTANCE_IDENTIFIER
+                    break;
+                case DERIVED:
+                    return getCapitalCase(
+                            getCamelCase(yangType.getDataTypeName(), pluginConfig));
+                default:
+                    throw new TranslatorException("given data type is not supported.");
+            }
+        } else {
+            switch (type) {
+                case UINT64:
+                    return BIG_INTEGER;
+                case DECIMAL64:
+                    return YANG_DECIMAL64_CLASS;
+                case STRING:
+                    return STRING_DATA_TYPE;
+                case ENUMERATION:
+                    return getCapitalCase(
+                            getCamelCase(((YangJavaEnumeration) yangType.getDataTypeExtendedInfo()).getName(),
+                                    pluginConfig));
+                case BITS:
+                    return YANG_BITS_CLASS;
+                case BINARY:
+                    return YANG_BINARY_CLASS;
+                case LEAFREF:
+                    //TODO:LEAFREF
+                    break;
+                case IDENTITYREF:
+                    //TODO:IDENTITYREF
+                    break;
+                case EMPTY:
+                    return BOOLEAN_DATA_TYPE;
+                case UNION:
+                    return getCapitalCase(getCamelCase(((YangJavaUnion) yangType.getDataTypeExtendedInfo()).getName(),
+                            pluginConfig));
+                case INSTANCE_IDENTIFIER:
+                    //TODO:INSTANCE_IDENTIFIER
+                    break;
+                case DERIVED:
+                    return getCapitalCase(
+                            getCamelCase(yangType.getDataTypeName(), pluginConfig));
+                default:
+                    return null;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Returns java import package.
+     *
+     * @param yangType         YANG type
+     * @param isListAttr       if the attribute is of list type
+     * @param conflictResolver object of YANG to java naming conflict util
+     * @return java import package
+     */
+    public static String getJavaImportPackage(YangType<?> yangType, boolean isListAttr,
+                                              YangToJavaNamingConflictUtil conflictResolver) {
+
+        YangDataTypes type = yangType.getDataType();
+
+        if (isListAttr) {
+            switch (type) {
+                case INT8:
+                case INT16:
+                case INT32:
+                case INT64:
+                case UINT8:
+                case UINT16:
+                case UINT32:
+                case STRING:
+                case BOOLEAN:
+                case EMPTY:
+                    return JAVA_LANG;
+                case UINT64:
+                    return JAVA_MATH;
+                case ENUMERATION:
+                    return getEnumsPackage(yangType, conflictResolver);
+                case DECIMAL64:
+                case BITS:
+                case BINARY:
+                    return YANG_TYPES_PKG;
+                case LEAFREF:
+                    //TODO:LEAFREF
+                    break;
+                case IDENTITYREF:
+                    //TODO:IDENTITYREF
+                    break;
+                case UNION:
+                    return getUnionPackage(yangType, conflictResolver);
+                case INSTANCE_IDENTIFIER:
+                    //TODO:INSTANCE_IDENTIFIER
+                    break;
+                case DERIVED:
+                    return getTypDefsPackage(yangType, conflictResolver);
+                default:
+                    throw new TranslatorException("given data type is not supported.");
+            }
+        } else {
+            switch (type) {
+                case UINT64:
+                    return JAVA_MATH;
+                case STRING:
+                    return JAVA_LANG;
+                case ENUMERATION:
+                    return getEnumsPackage(yangType, conflictResolver);
+                case DECIMAL64:
+                case BITS:
+                case BINARY:
+                    return YANG_TYPES_PKG;
+                case LEAFREF:
+                    //TODO:LEAFREF
+                    break;
+                case IDENTITYREF:
+                    //TODO:IDENTITYREF
+                    break;
+                case EMPTY:
+                    return JAVA_LANG;
+                case UNION:
+                    return getUnionPackage(yangType, conflictResolver);
+                case INSTANCE_IDENTIFIER:
+                    //TODO:INSTANCE_IDENTIFIER
+                    break;
+                case DERIVED:
+                    return getTypDefsPackage(yangType, conflictResolver);
+                default:
+                    return null;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Returns java package for typedef node.
+     *
+     * @param type             YANG type
+     * @param conflictResolver object of YANG to java naming conflict util
+     * @return java package for typedef node
+     */
+    private static String getTypDefsPackage(YangType<?> type, YangToJavaNamingConflictUtil conflictResolver) {
+        Object var = type.getDataTypeExtendedInfo();
+        if (!(var instanceof YangDerivedInfo)) {
+            throw new TranslatorException("type should have been derived.");
+        }
+
+        if (!(((YangDerivedInfo<?>) var).getReferredTypeDef() instanceof YangTypeDef)) {
+            throw new TranslatorException("derived info is not an instance of typedef.");
+        }
+
+        YangJavaTypeDef typedef = (YangJavaTypeDef) ((YangDerivedInfo<?>) var).getReferredTypeDef();
+        if (typedef.getJavaFileInfo().getPackage() == null) {
+            return getPackageFromParent(typedef.getParent(), conflictResolver);
+        }
+        return typedef.getJavaFileInfo().getPackage();
+    }
+
+    /**
+     * Returns java package for union node.
+     *
+     * @param type             YANG type
+     * @param conflictResolver object of YANG to java naming conflict util
+     * @return java package for union node
+     */
+    private static String getUnionPackage(YangType<?> type, YangToJavaNamingConflictUtil conflictResolver) {
+
+        if (!(type.getDataTypeExtendedInfo() instanceof YangUnion)) {
+            throw new TranslatorException("type should have been union.");
+        }
+
+        YangJavaUnion union = (YangJavaUnion) type.getDataTypeExtendedInfo();
+        if (union.getJavaFileInfo().getPackage() == null) {
+            return getPackageFromParent(union.getParent(), conflictResolver);
+        }
+        return union.getJavaFileInfo().getPackage();
+    }
+
+    /**
+     * Returns YANG enumeration's java package.
+     *
+     * @param type             YANG type
+     * @param conflictResolver object of YANG to java naming conflict util
+     * @return YANG enumeration's java package
+     */
+    private static String getEnumsPackage(YangType<?> type, YangToJavaNamingConflictUtil conflictResolver) {
+
+        if (!(type.getDataTypeExtendedInfo() instanceof YangEnumeration)) {
+            throw new TranslatorException("type should have been enumeration.");
+        }
+        YangJavaEnumeration enumeration = (YangJavaEnumeration) type.getDataTypeExtendedInfo();
+        if (enumeration.getJavaFileInfo().getPackage() == null) {
+            return getPackageFromParent(enumeration.getParent(), conflictResolver);
+        }
+        return enumeration.getJavaFileInfo().getPackage();
+    }
+
+    /**
+     * Returns package from parent node.
+     *
+     * @param parent           parent YANG node
+     * @param conflictResolver object of YANG to java naming conflict util
+     * @return java package from parent node
+     */
+    private static String getPackageFromParent(YangNode parent,
+                                               YangToJavaNamingConflictUtil conflictResolver) {
+        if (!(parent instanceof JavaFileInfoContainer)) {
+            throw new TranslatorException("invalid child node is being processed.");
+        }
+        JavaFileInfo parentInfo = ((JavaFileInfoContainer) parent).getJavaFileInfo();
+        if (parentInfo.getPackage() == null) {
+            updateJavaFileInfo(parent, conflictResolver);
+        }
+        return parentInfo.getPackage() + PERIOD + parentInfo.getJavaName().toLowerCase();
+    }
+
+    /**
+     * Update the referred data model nodes java file info, this will be called,
+     * when the linked node is yet to translate. Then resolve until the parent hierarchy.
+     *
+     * @param yangNode         node whose java info needs to be updated
+     * @param conflictResolver yang plugin config
+     */
+    public static void updateJavaFileInfo(YangNode yangNode,
+                                          YangToJavaNamingConflictUtil conflictResolver) {
+        Stack<YangNode> nodesToUpdatePackage = new Stack<YangNode>();
+
+        /*
+         * Add the nodes to be updated for package info in a stack.
+         */
+        while (yangNode != null
+                && ((JavaFileInfoContainer) yangNode)
+                .getJavaFileInfo().getPackage() == null) {
+            nodesToUpdatePackage.push(yangNode);
+            yangNode = yangNode.getParent();
+        }
+
+        /*
+         * If the package is not updated till root node, then root package needs to
+         * be updated.
+         */
+        if (yangNode == null) {
+            yangNode = nodesToUpdatePackage.pop();
+            String pkg;
+            if (yangNode instanceof YangJavaModule) {
+                YangJavaModule module = (YangJavaModule) yangNode;
+                pkg = getRootPackage(module.getVersion(), module.getNameSpace().getUri(), module
+                        .getRevision().getRevDate(), conflictResolver);
+            } else if (yangNode instanceof YangJavaSubModule) {
+                YangJavaSubModule submodule = (YangJavaSubModule) yangNode;
+                pkg = getRootPackage(submodule.getVersion(),
+                        submodule.getNameSpaceFromModule(submodule.getBelongsTo()),
+                        submodule.getRevision().getRevDate(), conflictResolver);
+            } else {
+                throw new TranslatorException("Invalid root node of data model tree");
+            }
+
+            ((JavaCodeGeneratorInfo) yangNode).getJavaFileInfo()
+                    .setJavaName(getCamelCase(yangNode.getName(), conflictResolver));
+            ((JavaCodeGeneratorInfo) yangNode).getJavaFileInfo()
+                    .setPackage(pkg);
+            ((JavaCodeGeneratorInfo) yangNode).getJavaFileInfo()
+                    .setPackageFilePath(getPackageDirPathFromJavaJPackage(
+                            ((JavaCodeGeneratorInfo) yangNode).getJavaFileInfo()
+                                    .getPackage()));
+        }
+
+        /**
+         * Parent of the node in stack is updated with java info,
+         * all the nodes can be popped and updated
+         */
+        while (nodesToUpdatePackage.size() != 0) {
+            yangNode = nodesToUpdatePackage.pop();
+            ((JavaCodeGeneratorInfo) yangNode).getJavaFileInfo()
+                    .setJavaName(getCamelCase(yangNode.getName(), conflictResolver));
+            ((JavaCodeGeneratorInfo) yangNode).getJavaFileInfo()
+                    .setPackage(getCurNodePackage(yangNode));
+            ((JavaCodeGeneratorInfo) yangNode).getJavaFileInfo()
+                    .setPackageFilePath(getPackageDirPathFromJavaJPackage(
+                            ((JavaCodeGeneratorInfo) yangNode).getJavaFileInfo()
+                                    .getPackage()));
+        }
+    }
+}
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaCodeGeneratorInfo.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaCodeGeneratorInfo.java
deleted file mode 100644
index 8dc0db5..0000000
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaCodeGeneratorInfo.java
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.onosproject.yangutils.translator.tojava.javamodel;
-
-import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
-import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
-
-/**
- * Represents YANG java info containing interface for java code generator, java
- * file information, java import data and temp java code fragment files. This
- * interface serves as a generic interface and help to unify the generate code
- * entry function.
- */
-public interface JavaCodeGeneratorInfo
-        extends JavaFileInfoContainer, TempJavaCodeFragmentFilesContainer {
-}
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaLeafInfoContainer.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaLeafInfoContainer.java
index 3722ad3..c57e3c4 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaLeafInfoContainer.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaLeafInfoContainer.java
@@ -17,7 +17,7 @@
 
 import org.onosproject.yangutils.datamodel.YangType;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfoContainer;
-import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
+import org.onosproject.yangutils.utils.io.impl.YangToJavaNamingConflictUtil;
 
 /**
  * Represent java based identification of the YANG leaves.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaQualifiedTypeResolver.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaQualifiedTypeResolver.java
index 5b1e7c5..c85b1a2 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaQualifiedTypeResolver.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/JavaQualifiedTypeResolver.java
@@ -16,7 +16,7 @@
 package org.onosproject.yangutils.translator.tojava.javamodel;
 
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfoContainer;
-import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
+import org.onosproject.yangutils.utils.io.impl.YangToJavaNamingConflictUtil;
 
 /**
  * Represent java based identification of the YANG leaves.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaAugment.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaAugment.java
index 6ac0fb7..cc54b24 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaAugment.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaAugment.java
@@ -20,12 +20,13 @@
 import org.onosproject.yangutils.datamodel.YangAugment;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfAugmentableNode;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfAugmentableNode;
 
 /**
  * Represents augment information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaCase.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaCase.java
index ba7bd01..4652fd4 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaCase.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaCase.java
@@ -20,12 +20,13 @@
 import org.onosproject.yangutils.datamodel.YangCase;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfAugmentableNode;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfAugmentableNode;
 
 /**
  * Represents case information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaChoice.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaChoice.java
index 4096972..1e29349 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaChoice.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaChoice.java
@@ -20,12 +20,13 @@
 import org.onosproject.yangutils.datamodel.YangChoice;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.INTERFACE_MASK;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeAndUpdateInParent;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeAndUpdateInParent;
 
 /**
  * Represents choice information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaContainer.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaContainer.java
index c056632..eac6291 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaContainer.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaContainer.java
@@ -20,12 +20,13 @@
 import org.onosproject.yangutils.datamodel.YangContainer;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeAndUpdateInParent;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeAndUpdateInParent;
 
 /**
  * Represents container information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaEnumeration.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaEnumeration.java
index 16cabc2..2edd8d8 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaEnumeration.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaEnumeration.java
@@ -21,12 +21,13 @@
 import org.onosproject.yangutils.datamodel.YangEnumeration;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_ENUM_CLASS;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfNode;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfNode;
 
 /**
  * Represents YANG java enumeration information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaGrouping.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaGrouping.java
index 8a90a44..808c4c1 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaGrouping.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaGrouping.java
@@ -20,11 +20,12 @@
 import org.onosproject.yangutils.datamodel.YangGrouping;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.updatePackageInfo;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.updatePackageInfo;
 
 /**
  * Represents grouping information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaInput.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaInput.java
index db59174..7e6211a 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaInput.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaInput.java
@@ -21,12 +21,13 @@
 import org.onosproject.yangutils.datamodel.YangInput;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfAugmentableNode;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfAugmentableNode;
 
 /**
  * Represents input information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java
index 9f39dce..a9fa972 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java
@@ -17,10 +17,10 @@
 
 import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
-import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
+import org.onosproject.yangutils.utils.io.impl.YangToJavaNamingConflictUtil;
 
 import static org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo.updateLeavesJavaQualifiedInfo;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
+import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCamelCase;
 
 /**
  * Represents java information corresponding to the YANG leaf.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeafList.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeafList.java
index 91c550f..c22a134 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeafList.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeafList.java
@@ -17,10 +17,10 @@
 
 import org.onosproject.yangutils.datamodel.YangLeafList;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
-import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
+import org.onosproject.yangutils.utils.io.impl.YangToJavaNamingConflictUtil;
 
 import static org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo.updateLeavesJavaQualifiedInfo;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCamelCase;
+import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCamelCase;
 
 /**
  * Represents java information corresponding to the YANG leaf-list.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaList.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaList.java
index 6f08b5d..e4a1997 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaList.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaList.java
@@ -20,12 +20,13 @@
 import org.onosproject.yangutils.datamodel.YangList;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeAndUpdateInParent;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeAndUpdateInParent;
 
 /**
  * Represents YANG list information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModelUtils.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModelUtils.java
new file mode 100644
index 0000000..58eee77
--- /dev/null
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModelUtils.java
@@ -0,0 +1,373 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.yangutils.translator.tojava.javamodel;
+
+import java.io.IOException;
+import org.onosproject.yangutils.datamodel.RpcNotificationContainer;
+import org.onosproject.yangutils.datamodel.YangCase;
+import org.onosproject.yangutils.datamodel.YangChoice;
+import org.onosproject.yangutils.datamodel.YangLeavesHolder;
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.datamodel.YangTypeHolder;
+import org.onosproject.yangutils.datamodel.utils.DataModelUtils;
+import org.onosproject.yangutils.translator.exception.TranslatorException;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
+import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
+import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
+import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
+import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
+
+import static org.onosproject.yangutils.datamodel.utils.DataModelUtils.isRpcChildNodePresent;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
+import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
+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.TempJavaFragmentFiles.addCurNodeInfoInParentTempFile;
+import static org.onosproject.yangutils.utils.UtilConstants.PERIOD;
+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.getPackageDirPathFromJavaJPackage;
+
+/**
+ * Represents utility class for YANG java model.
+ */
+public final class YangJavaModelUtils {
+
+    /**
+     * Creates an instance of YANG java model utility.
+     */
+    private YangJavaModelUtils() {
+    }
+
+    /**
+     * Updates YANG java file package information.
+     *
+     * @param javaCodeGeneratorInfo YANG java file info node
+     * @param yangPluginConfig      YANG plugin config
+     * @throws IOException IO operations fails
+     */
+    public static void updatePackageInfo(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
+            YangPluginConfig yangPluginConfig)
+            throws IOException {
+
+        javaCodeGeneratorInfo.getJavaFileInfo()
+                .setJavaName(getCamelCase(((YangNode) javaCodeGeneratorInfo).getName(),
+                        yangPluginConfig.getConflictResolver()));
+        javaCodeGeneratorInfo.getJavaFileInfo().setPackage(getCurNodePackage((YangNode) javaCodeGeneratorInfo));
+        javaCodeGeneratorInfo.getJavaFileInfo().setPackageFilePath(
+                getPackageDirPathFromJavaJPackage(javaCodeGeneratorInfo.getJavaFileInfo().getPackage()));
+        javaCodeGeneratorInfo.getJavaFileInfo().setBaseCodeGenPath(yangPluginConfig.getCodeGenDir());
+        javaCodeGeneratorInfo.getJavaFileInfo().setPluginConfig(yangPluginConfig);
+    }
+
+    /**
+     * Updates YANG java file package information for specified package.
+     *
+     * @param javaCodeGeneratorInfo YANG java file info node
+     * @param yangPlugin            YANG plugin config
+     * @throws IOException IO operations fails
+     */
+    private static void updatePackageInfo(JavaCodeGeneratorInfo javaCodeGeneratorInfo, YangPluginConfig yangPlugin,
+            String pkg)
+            throws IOException {
+        javaCodeGeneratorInfo.getJavaFileInfo()
+                .setJavaName(getCamelCase(((YangNode) javaCodeGeneratorInfo).getName(),
+                        yangPlugin.getConflictResolver()));
+        javaCodeGeneratorInfo.getJavaFileInfo().setPackage(pkg);
+        javaCodeGeneratorInfo.getJavaFileInfo().setPackageFilePath(
+                getPackageDirPathFromJavaJPackage(javaCodeGeneratorInfo.getJavaFileInfo().getPackage()));
+        javaCodeGeneratorInfo.getJavaFileInfo().setBaseCodeGenPath(yangPlugin.getCodeGenDir());
+        javaCodeGeneratorInfo.getJavaFileInfo().setPluginConfig(yangPlugin);
+    }
+
+    /**
+     * Updates temporary java code fragment files.
+     *
+     * @param javaCodeGeneratorInfo YANG java file info node
+     * @throws IOException IO operations fails
+     */
+    private static void createTempFragmentFile(JavaCodeGeneratorInfo javaCodeGeneratorInfo)
+            throws IOException {
+        javaCodeGeneratorInfo.setTempJavaCodeFragmentFiles(
+                new TempJavaCodeFragmentFiles(javaCodeGeneratorInfo.getJavaFileInfo()));
+    }
+
+    /**
+     * Updates leaf information in temporary java code fragment files.
+     *
+     * @param javaCodeGeneratorInfo YANG java file info node
+     * @throws IOException IO operations fails
+     */
+    private static void updateTempFragmentFiles(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
+            YangPluginConfig yangPluginConfig)
+            throws IOException {
+        if (javaCodeGeneratorInfo instanceof RpcNotificationContainer) {
+            /*
+             * Module / sub module node code generation.
+             */
+            javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
+                    .getServiceTempFiles().addCurNodeLeavesInfoToTempFiles(
+                    (YangNode) javaCodeGeneratorInfo, yangPluginConfig);
+            if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaModule) {
+                if (!((YangJavaModule) javaCodeGeneratorInfo).getNotificationNodes().isEmpty()) {
+                    updateNotificaitonNodeInfo(javaCodeGeneratorInfo, yangPluginConfig);
+                }
+            } else if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaSubModule) {
+                if (!((YangJavaSubModule) javaCodeGeneratorInfo).getNotificationNodes().isEmpty()) {
+                    updateNotificaitonNodeInfo(javaCodeGeneratorInfo, yangPluginConfig);
+                }
+            }
+
+        } else if (javaCodeGeneratorInfo instanceof YangLeavesHolder) {
+            /*
+             * Container
+             * Case
+             * Grouping
+             * Input
+             * List
+             * Notification
+             * Output
+             */
+            javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
+                    .getBeanTempFiles().addCurNodeLeavesInfoToTempFiles(
+                    (YangNode) javaCodeGeneratorInfo, yangPluginConfig);
+        } else if (javaCodeGeneratorInfo instanceof YangTypeHolder) {
+            /*
+             * Typedef
+             * Union
+             */
+            javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
+                    .addTypeInfoToTempFiles((YangTypeHolder) javaCodeGeneratorInfo, yangPluginConfig);
+        } else if (javaCodeGeneratorInfo instanceof YangJavaEnumeration) {
+            /*
+             * Enumeration
+             */
+            javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles().getEnumerationTempFiles()
+                    .addEnumAttributeToTempFiles((YangNode) javaCodeGeneratorInfo, yangPluginConfig);
+
+        } else if (javaCodeGeneratorInfo instanceof YangChoice) {
+            /*Do nothing, only the interface needs to be generated*/
+        } else {
+            throw new TranslatorException("Unsupported Node Translation");
+        }
+    }
+
+    /**
+     * Process generate code entry of YANG node.
+     *
+     * @param javaCodeGeneratorInfo YANG java file info node
+     * @throws IOException IO operations fails
+     */
+    private static void generateTempFiles(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
+            YangPluginConfig yangPluginConfig)
+            throws IOException {
+        if (!(javaCodeGeneratorInfo instanceof YangNode)) {
+            throw new TranslatorException("translation is not supported for the node");
+        }
+        createTempFragmentFile(javaCodeGeneratorInfo);
+        updateTempFragmentFiles(javaCodeGeneratorInfo, yangPluginConfig);
+
+    }
+
+    /**
+     * Updates notification node info in service temporary file.
+     *
+     * @param javaCodeGeneratorInfo java code generator info
+     * @param yangPluginConfig      plugin configurations
+     * @throws IOException when fails to do IO operations
+     */
+    private static void updateNotificaitonNodeInfo(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
+            YangPluginConfig yangPluginConfig)
+            throws IOException {
+        if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaModule) {
+            for (YangNode notificaiton : ((YangJavaModule) javaCodeGeneratorInfo).getNotificationNodes()) {
+                javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
+                        .getServiceTempFiles()
+                        .addJavaSnippetOfEvent(notificaiton, yangPluginConfig);
+            }
+        }
+        if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaSubModule) {
+            for (YangNode notificaiton : ((YangJavaSubModule) javaCodeGeneratorInfo)
+                    .getNotificationNodes()) {
+                javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles()
+                        .getServiceTempFiles()
+                        .addJavaSnippetOfEvent(notificaiton, yangPluginConfig);
+            }
+        }
+    }
+
+    /**
+     * Generates code for the current ata model node and adds itself as an attribute in the parent.
+     *
+     * @param javaCodeGeneratorInfo YANG java file info node
+     * @param yangPlugin            YANG plugin config
+     * @param isMultiInstance       flag to indicate whether it's a list
+     * @throws IOException IO operations fails
+     */
+    public static void generateCodeAndUpdateInParent(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
+            YangPluginConfig yangPlugin, boolean isMultiInstance)
+            throws IOException {
+        if (!(javaCodeGeneratorInfo instanceof YangNode)) {
+            throw new TranslatorException("Invalid node for translation");
+        }
+
+        /*
+         * Generate the Java files corresponding to the current node.
+         */
+        generateCodeOfAugmentableNode(javaCodeGeneratorInfo, yangPlugin);
+
+        /*
+         * Update the current nodes info in its parent nodes generated files.
+         */
+        addCurNodeInfoInParentTempFile((YangNode) javaCodeGeneratorInfo, isMultiInstance, yangPlugin);
+    }
+
+    /**
+     * Generates code for the current data model node and adds support for it to be augmented.
+     *
+     * @param javaCodeGeneratorInfo YANG java file info node
+     * @param yangPlugin            YANG plugin config
+     * @throws IOException IO operations fails
+     */
+    public static void generateCodeOfAugmentableNode(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
+            YangPluginConfig yangPlugin)
+            throws IOException {
+        if (!(javaCodeGeneratorInfo instanceof YangNode)) {
+            throw new TranslatorException("invalid node for translation");
+        }
+
+        generateCodeOfNode(javaCodeGeneratorInfo, yangPlugin);
+
+        /*
+        TODO: Need to use this, when augmentation is added in YMS
+         * For augmentation of nodes.
+
+        if (javaCodeGeneratorInfo instanceof YangAugmentationHolder) {
+            JavaQualifiedTypeInfo augmentationHoldersInfo = new JavaQualifiedTypeInfo();
+            augmentationHoldersInfo.setClassInfo(AUGMENTATION_HOLDER);
+            augmentationHoldersInfo.setPkgInfo(PROVIDED_AUGMENTATION_CLASS_IMPORT_PKG);
+            javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles().getBeanTempFiles().getJavaExtendsListHolder()
+                    .addToExtendsList(augmentationHoldersInfo, (YangNode) javaCodeGeneratorInfo);
+
+        } else if (javaCodeGeneratorInfo instanceof YangAugment) {
+            JavaQualifiedTypeInfo augmentedInfo = new JavaQualifiedTypeInfo();
+            augmentedInfo.setClassInfo(AUGMENTED_INFO);
+            augmentedInfo.setPkgInfo(PROVIDED_AUGMENTATION_CLASS_IMPORT_PKG);
+            javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles().getBeanTempFiles().getJavaExtendsListHolder()
+                    .addToExtendsList(augmentedInfo, (YangNode) javaCodeGeneratorInfo);
+
+        }
+        */
+        if (javaCodeGeneratorInfo instanceof YangCase) {
+            YangNode parent = ((YangCase) javaCodeGeneratorInfo).getParent();
+            JavaQualifiedTypeInfo parentsInfo = new JavaQualifiedTypeInfo();
+            String parentName = getCapitalCase(((JavaFileInfoContainer) parent).getJavaFileInfo().getJavaName());
+            String parentPkg = ((JavaFileInfoContainer) parent).getJavaFileInfo().getPackage();
+            parentsInfo.setClassInfo(parentName);
+            parentsInfo.setPkgInfo(parentPkg);
+            javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles().getBeanTempFiles().getJavaExtendsListHolder()
+                    .addToExtendsList(parentsInfo, (YangNode) javaCodeGeneratorInfo);
+
+            javaCodeGeneratorInfo.getTempJavaCodeFragmentFiles().getBeanTempFiles()
+                    .addParentInfoInCurNodeTempFile((YangNode) javaCodeGeneratorInfo, yangPlugin);
+
+        }
+    }
+
+    /**
+     * Generates code for the current data model node.
+     *
+     * @param javaCodeGeneratorInfo YANG java file info node
+     * @param yangPluginConfig      YANG plugin config
+     * @throws IOException IO operations fails
+     */
+    public static void generateCodeOfNode(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
+            YangPluginConfig yangPluginConfig)
+            throws IOException {
+        if (!(javaCodeGeneratorInfo instanceof YangNode)) {
+            // TODO:throw exception
+        }
+        updatePackageInfo(javaCodeGeneratorInfo, yangPluginConfig);
+        generateTempFiles(javaCodeGeneratorInfo, yangPluginConfig);
+    }
+
+    /**
+     * Generates code for the root module/sub-module node.
+     *
+     * @param javaCodeGeneratorInfo YANG java file info node
+     * @param yangPluginConfig      YANG plugin config
+     * @param rootPkg               package of the root node
+     * @throws IOException IO operations fails
+     */
+    public static void generateCodeOfRootNode(JavaCodeGeneratorInfo javaCodeGeneratorInfo,
+                                              YangPluginConfig yangPluginConfig, String rootPkg)
+            throws IOException {
+        if (!(javaCodeGeneratorInfo instanceof YangNode)) {
+            // TODO:throw exception
+        }
+        updatePackageInfo(javaCodeGeneratorInfo, yangPluginConfig, rootPkg);
+
+        if (isRpcChildNodePresent((YangNode) javaCodeGeneratorInfo)) {
+            javaCodeGeneratorInfo.getJavaFileInfo().addGeneratedFileTypes(GENERATE_SERVICE_AND_MANAGER);
+        }
+
+        if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaModule) {
+            if (!((YangJavaModule) javaCodeGeneratorInfo)
+                    .isNotificationChildNodePresent((YangNode) javaCodeGeneratorInfo)) {
+                updateCodeGenInfoForEvent(javaCodeGeneratorInfo);
+            }
+        } else if ((YangNode) javaCodeGeneratorInfo instanceof YangJavaSubModule) {
+            if (!((YangJavaSubModule) javaCodeGeneratorInfo)
+                    .isNotificationChildNodePresent((YangNode) javaCodeGeneratorInfo)) {
+                updateCodeGenInfoForEvent(javaCodeGeneratorInfo);
+            }
+        }
+
+        generateTempFiles(javaCodeGeneratorInfo, yangPluginConfig);
+    }
+
+    /*Updates java code generator info with events info.*/
+    private static void updateCodeGenInfoForEvent(JavaCodeGeneratorInfo javaCodeGeneratorInfo) {
+        javaCodeGeneratorInfo.getJavaFileInfo().addGeneratedFileTypes(GENERATE_EVENT_SUBJECT_CLASS);
+        javaCodeGeneratorInfo.getJavaFileInfo().addGeneratedFileTypes(GENERATE_EVENT_CLASS);
+        javaCodeGeneratorInfo.getJavaFileInfo().addGeneratedFileTypes(GENERATE_EVENT_LISTENER_INTERFACE);
+    }
+
+    /**
+     * Returns the node package string.
+     *
+     * @param curNode current java node whose package string needs to be set
+     * @return returns the root package string
+     */
+    public static String getCurNodePackage(YangNode curNode) {
+
+        String pkg;
+        if (!(curNode instanceof JavaFileInfoContainer)
+                || curNode.getParent() == null) {
+            throw new TranslatorException("missing parent node to get current node's package");
+        }
+
+        YangNode parentNode = DataModelUtils.getParentNodeInGenCode(curNode);
+        if (!(parentNode instanceof JavaFileInfoContainer)) {
+            throw new TranslatorException("missing parent java node to get current node's package");
+        }
+        JavaFileInfo parentJavaFileHandle = ((JavaFileInfoContainer) parentNode).getJavaFileInfo();
+        pkg = parentJavaFileHandle.getPackage() + PERIOD + parentJavaFileHandle.getJavaName();
+        return pkg.toLowerCase();
+    }
+}
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModule.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModule.java
index 1413f9c..b53ec92 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModule.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaModule.java
@@ -24,16 +24,17 @@
 import org.onosproject.yangutils.datamodel.YangNotification;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
 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.JavaIdentifierSyntax.getRootPackage;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfRootNode;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfRootNode;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.searchAndDeleteTempDir;
 
 /**
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaNotification.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaNotification.java
index 68f8164..61eebfb 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaNotification.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaNotification.java
@@ -22,17 +22,18 @@
 import org.onosproject.yangutils.datamodel.YangNotification;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.utils.JavaExtendsListHolder;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfAugmentableNode;
+import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCapitalCase;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfAugmentableNode;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_LISTENER_STRING;
 import static org.onosproject.yangutils.utils.UtilConstants.EVENT_STRING;
 
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaOutput.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaOutput.java
index dda3fc9..ce9ed6e 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaOutput.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaOutput.java
@@ -21,12 +21,13 @@
 import org.onosproject.yangutils.datamodel.YangOutput;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_INTERFACE_WITH_BUILDER;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfAugmentableNode;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfAugmentableNode;
 
 /**
  * Represents output information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaRpc.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaRpc.java
index f3730a2..fe72d18 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaRpc.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaRpc.java
@@ -26,19 +26,20 @@
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaAttributeInfo;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfoContainer;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFilesContainer;
 import org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.datamodel.utils.DataModelUtils.getParentNodeInGenCode;
 import static org.onosproject.yangutils.translator.tojava.JavaAttributeInfo.getAttributeInfoForTheData;
 import static org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo.getQualifiedTypeInfoOfCurNode;
-import static org.onosproject.yangutils.translator.tojava.utils.JavaIdentifierSyntax.getCapitalCase;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.updatePackageInfo;
+import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.getCapitalCase;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.updatePackageInfo;
 import static org.onosproject.yangutils.utils.UtilConstants.ACTIVATE;
 import static org.onosproject.yangutils.utils.UtilConstants.COMPONENT;
 import static org.onosproject.yangutils.utils.UtilConstants.DEACTIVATE;
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaSubModule.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaSubModule.java
index d838682..31abd5c 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaSubModule.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaSubModule.java
@@ -26,16 +26,17 @@
 import org.onosproject.yangutils.datamodel.YangSubModule;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_CLASS;
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_EVENT_LISTENER_INTERFACE;
 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.JavaIdentifierSyntax.getRootPackage;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfRootNode;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfRootNode;
 import static org.onosproject.yangutils.utils.io.impl.YangIoUtils.searchAndDeleteTempDir;
 
 /**
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaType.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaType.java
index e537743..1a96a3a 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaType.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaType.java
@@ -18,8 +18,7 @@
 import org.onosproject.yangutils.datamodel.YangType;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
-import org.onosproject.yangutils.translator.tojava.utils.AttributesJavaDataType;
-import org.onosproject.yangutils.translator.tojava.utils.YangToJavaNamingConflictUtil;
+import org.onosproject.yangutils.utils.io.impl.YangToJavaNamingConflictUtil;
 
 /**
  * Represents java information corresponding to the YANG type.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaTypeDef.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaTypeDef.java
index 0124510..3d33f3d 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaTypeDef.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaTypeDef.java
@@ -20,12 +20,13 @@
 import org.onosproject.yangutils.datamodel.YangTypeDef;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_TYPEDEF_CLASS;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfNode;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfNode;
 
 /**
  * Represents type define information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUnion.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUnion.java
index eac8e52..cca3e4b 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUnion.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUnion.java
@@ -20,12 +20,13 @@
 import org.onosproject.yangutils.datamodel.YangUnion;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.translator.tojava.GeneratedJavaFileType.GENERATE_UNION_CLASS;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.generateCodeOfNode;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.generateCodeOfNode;
 
 /**
  * Represents union information extended to support java code generation.
diff --git a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUses.java b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUses.java
index f6166a5..cef6202 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUses.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaUses.java
@@ -25,13 +25,14 @@
 import org.onosproject.yangutils.datamodel.YangUses;
 import org.onosproject.yangutils.translator.exception.TranslatorException;
 import org.onosproject.yangutils.translator.tojava.JavaCodeGenerator;
+import org.onosproject.yangutils.translator.tojava.JavaCodeGeneratorInfo;
 import org.onosproject.yangutils.translator.tojava.JavaFileInfo;
 import org.onosproject.yangutils.translator.tojava.TempJavaCodeFragmentFiles;
-import org.onosproject.yangutils.translator.tojava.utils.YangPluginConfig;
+import org.onosproject.yangutils.utils.io.impl.YangPluginConfig;
 
 import static org.onosproject.yangutils.datamodel.utils.DataModelUtils.getParentNodeInGenCode;
 import static org.onosproject.yangutils.translator.tojava.TempJavaFragmentFiles.addCurNodeAsAttributeInTargetTempFile;
-import static org.onosproject.yangutils.translator.tojava.utils.YangJavaModelUtils.updatePackageInfo;
+import static org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModelUtils.updatePackageInfo;
 
 /**
  * Represents uses information extended to support java code generation.