[ONOS-4286],[ONOS-3911] YANG typedef and YANG augment
translator implementation.
Change-Id: I3e21d1cb52bcb90b935b672eee42b836c21f448b
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/utils/TempJavaCodeFragmentFilesUtils.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/utils/TempJavaCodeFragmentFilesUtils.java
new file mode 100644
index 0000000..adc90ef
--- /dev/null
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/utils/TempJavaCodeFragmentFilesUtils.java
@@ -0,0 +1,193 @@
+/*
+ * 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.utils;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.List;
+
+import org.onosproject.yangutils.datamodel.YangNode;
+import org.onosproject.yangutils.translator.tojava.HasJavaImportData;
+
+import static org.onosproject.yangutils.translator.tojava.JavaImportData.getAugmentedInfoImport;
+import static org.onosproject.yangutils.translator.tojava.JavaImportData.getHasAugmentationImport;
+import static org.onosproject.yangutils.translator.tojava.JavaImportData.getImportForArrayList;
+import static org.onosproject.yangutils.translator.tojava.JavaImportData.getImportForList;
+import static org.onosproject.yangutils.utils.UtilConstants.AUGMENTED_INFO;
+import static org.onosproject.yangutils.utils.UtilConstants.HAS_AUGMENTATION;
+import static org.onosproject.yangutils.utils.io.impl.FileSystemUtil.updateFileHandle;
+
+/**
+ * Represents utilities for temporary java code fragments.
+ */
+public final class TempJavaCodeFragmentFilesUtils {
+
+ /**
+ * Creates a private instance of temporary java code fragment utils.
+ */
+ private TempJavaCodeFragmentFilesUtils() {
+ }
+
+ /**
+ * Adds imports for ToString and HashCodeMethod.
+ *
+ * @param curNode current YANG node
+ * @param imports import list
+ * @return import list
+ */
+ public static List<String> addImportsToStringAndHasCodeMethods(YangNode curNode, List<String> imports) {
+ if (curNode instanceof HasJavaImportData) {
+ imports.add(((HasJavaImportData) curNode).getJavaImportData().getImportForHashAndEquals());
+ imports.add(((HasJavaImportData) curNode).getJavaImportData().getImportForToString());
+ }
+ return imports;
+ }
+
+ /**
+ * Adds import for HasAugmentation class.
+ *
+ * @param curNode current YANG node
+ * @param imports list of imports
+ * @param operation add or delete import
+ * @return import for HasAugmentation class
+ */
+ public static List<String> addHasAugmentationImport(YangNode curNode, List<String> imports, boolean operation) {
+ if (curNode instanceof HasJavaImportData) {
+ String thisImport = getHasAugmentationImport();
+ performOperationOnImports(imports, thisImport, operation);
+ }
+ return imports;
+ }
+
+ /**
+ * Adds import for AugmentedInfo class.
+ *
+ * @param curNode current YANG node
+ * @param imports list of imports
+ * @param operation add or delete import
+ * @return import for AugmentedInfo class
+ */
+ public static List<String> addAugmentedInfoImport(YangNode curNode, List<String> imports, boolean operation) {
+ if (curNode instanceof HasJavaImportData) {
+ String thisImport = getAugmentedInfoImport();
+ performOperationOnImports(imports, thisImport, operation);
+ }
+ return imports;
+ }
+
+ /**
+ * Adds import for array list.
+ *
+ * @param curNode current YANG node
+ * @param imports list of imports
+ * @param operation add or delete import
+ * @return import for HasAugmentation class
+ */
+ public static List<String> addArrayListImport(YangNode curNode, List<String> imports, boolean operation) {
+ if (curNode instanceof HasJavaImportData) {
+ String arrayListImport = getImportForArrayList();
+ String listImport = getImportForList();
+ performOperationOnImports(imports, arrayListImport, operation);
+ if (!imports.contains(listImport)) {
+ /**
+ * List can be there because of attribute also , so no need to remove it and operation will
+ * always be add(true).
+ */
+ performOperationOnImports(imports, listImport, true);
+ }
+ }
+
+ return imports;
+ }
+
+ /**
+ * Performs given operations on import list.
+ *
+ * @param imports list of imports
+ * @param curImport current import
+ * @param operation add or remove
+ * @return import list
+ */
+ private static List<String> performOperationOnImports(List<String> imports, String curImport, boolean operation) {
+ if (operation) {
+ imports.add(curImport);
+ } else {
+ imports.remove(curImport);
+ }
+ java.util.Collections.sort(imports);
+ return imports;
+ }
+
+ /**
+ * Prepares java file generator for extends list.
+ *
+ * @param extendsList list of classes need to be extended
+ */
+ public static void prepareJavaFileGeneratorForExtendsList(List<String> extendsList) {
+
+ if (!extendsList.isEmpty() && !extendsList.equals(null)) {
+ JavaFileGenerator.setExtendsList(extendsList);
+ JavaFileGenerator.setIsExtendsList(true);
+ } else {
+ JavaFileGenerator.getExtendsList().clear();
+ JavaFileGenerator.setIsExtendsList(false);
+ }
+ }
+
+ /**
+ * Returns true if HasAugmentation class needs to be extended.
+ *
+ * @param extendsList list of classes need to be extended
+ * @return true or false
+ */
+ public static boolean isHasAugmentationExtended(List<String> extendsList) {
+ if (extendsList != null && extendsList.contains(HAS_AUGMENTATION)) {
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Returns true if AugmentedInfo class needs to be extended.
+ *
+ * @param extendsList list of classes need to be extended
+ * @return true or false
+ */
+ public static boolean isAugmentedInfoExtended(List<String> extendsList) {
+ if (extendsList != null && extendsList.contains(AUGMENTED_INFO)) {
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Closes the file handle for temporary file.
+ *
+ * @param file file to be closed
+ * @param toBeDeleted flag to indicate if file needs to be deleted
+ * @throws IOException when failed to close the file handle
+ */
+ public static void closeFile(File file, boolean toBeDeleted) throws IOException {
+
+ if (file != null) {
+ updateFileHandle(file, null, true);
+ if (toBeDeleted) {
+ file.delete();
+ }
+ }
+ }
+}