| /* |
| * Copyright 2016 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.translator.tojava.AttributeInfo; |
| import org.onosproject.yangutils.utils.UtilConstants; |
| import org.onosproject.yangutils.utils.io.impl.CopyrightHeader; |
| import org.onosproject.yangutils.utils.io.impl.FileSystemUtil; |
| import org.onosproject.yangutils.utils.io.impl.JavaDocGen; |
| import org.onosproject.yangutils.utils.io.impl.JavaDocGen.JavaDocType; |
| import org.onosproject.yangutils.utils.io.impl.TempDataStore; |
| import org.onosproject.yangutils.utils.io.impl.TempDataStore.TempDataStoreType; |
| import org.slf4j.Logger; |
| |
| import static org.onosproject.yangutils.translator.GeneratedFileType.BUILDER_CLASS_MASK; |
| import static org.onosproject.yangutils.translator.GeneratedFileType.BUILDER_INTERFACE_MASK; |
| import static org.onosproject.yangutils.translator.GeneratedFileType.IMPL_CLASS_MASK; |
| import static org.onosproject.yangutils.translator.GeneratedFileType.INTERFACE_MASK; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * Generates java file. |
| */ |
| public final class JavaFileGenerator { |
| |
| private static final Logger log = getLogger(JavaFileGenerator.class); |
| |
| /** |
| * Default constructor. |
| */ |
| private JavaFileGenerator() { |
| } |
| |
| /** |
| * Returns a file object for generated file. |
| * |
| * @param fileName file name |
| * @param filePath file package path |
| * @param extension file extension |
| * @return file object |
| */ |
| public static File getFileObject(String filePath, String fileName, String extension) { |
| return new File(UtilConstants.YANG_GEN_DIR + filePath + File.separator + fileName + extension); |
| } |
| |
| /** |
| * Returns generated interface file for current node. |
| * |
| * @param file file |
| * @param className class name |
| * @param imports imports for the file |
| * @param attrList attribute info |
| * @param pkg generated file package |
| * @return interface file |
| * @throws IOException when fails to write in file |
| */ |
| public static File generateInterfaceFile(File file, String className, List<String> imports, |
| List<AttributeInfo> attrList, String pkg) throws IOException { |
| |
| initiateFile(file, className, INTERFACE_MASK, imports, pkg); |
| |
| List<String> methods; |
| try { |
| methods = TempDataStore.getTempData(TempDataStoreType.GETTER_METHODS, className); |
| } catch (ClassNotFoundException | IOException e) { |
| log.info("There is no attribute info of " + className + " YANG file in the temporary files."); |
| throw new IOException("Fail to read data from temp file."); |
| } |
| |
| /** |
| * Add getter methods to interface file. |
| */ |
| for (String method : methods) { |
| appendMethod(file, method); |
| } |
| return file; |
| } |
| |
| /** |
| * Return generated builder interface file for current node. |
| * |
| * @param file file |
| * @param className class name |
| * @param pkg generated file package |
| * @param attrList attribute info |
| * @return builder interface file |
| * @throws IOException when fails to write in file |
| */ |
| public static File generateBuilderInterfaceFile(File file, String className, String pkg, |
| List<AttributeInfo> attrList) throws IOException { |
| |
| initiateFile(file, className, BUILDER_INTERFACE_MASK, null, pkg); |
| List<String> methods; |
| try { |
| methods = TempDataStore.getTempData(TempDataStoreType.BUILDER_INTERFACE_METHODS, |
| className + UtilConstants.BUILDER + UtilConstants.INTERFACE); |
| } catch (ClassNotFoundException | IOException e) { |
| log.info("There is no attribute info of " + className + " YANG file in the temporary files."); |
| throw new IOException("Fail to read data from temp file."); |
| } |
| |
| /** |
| * Add build method to builder interface file. |
| */ |
| methods.add(MethodsGenerator.parseBuilderInterfaceBuildMethodString(className)); |
| |
| /** |
| * Add getters and setters in builder interface. |
| */ |
| for (String method : methods) { |
| appendMethod(file, UtilConstants.FOUR_SPACE_INDENTATION + method + UtilConstants.NEW_LINE); |
| } |
| |
| insert(file, UtilConstants.CLOSE_CURLY_BRACKET + UtilConstants.NEW_LINE); |
| return file; |
| } |
| |
| /** |
| * Returns generated builder class file for current node. |
| * |
| * @param file file |
| * @param className class name |
| * @param imports imports for the file |
| * @param pkg generated file package |
| * @param attrList attribute info |
| * @return builder class file |
| * @throws IOException when fails to write in file |
| */ |
| public static File generateBuilderClassFile(File file, String className, List<String> imports, String pkg, |
| List<AttributeInfo> attrList) throws IOException { |
| |
| initiateFile(file, className, BUILDER_CLASS_MASK, imports, pkg); |
| |
| /** |
| * Add attribute strings. |
| */ |
| List<String> attributes; |
| try { |
| attributes = TempDataStore.getTempData(TempDataStoreType.ATTRIBUTE, className); |
| } catch (ClassNotFoundException | IOException e) { |
| log.info("There is no attribute info of " + className + " YANG file in the temporary files."); |
| throw new IOException("Fail to read data from temp file."); |
| } |
| /** |
| * Add attributes to the file. |
| */ |
| for (String attribute : attributes) { |
| insert(file, UtilConstants.NEW_LINE + UtilConstants.FOUR_SPACE_INDENTATION + attribute); |
| } |
| insert(file, UtilConstants.NEW_LINE); |
| |
| List<String> methods; |
| try { |
| methods = TempDataStore.getTempData(TempDataStoreType.BUILDER_METHODS, className + UtilConstants.BUILDER); |
| } catch (ClassNotFoundException | IOException e) { |
| log.info("There is no attribute info of " + className + " YANG file in the temporary files."); |
| throw new IOException("Fail to read data from temp file."); |
| } |
| |
| /** |
| * Add default constructor and build method impl. |
| */ |
| methods.add(UtilConstants.NEW_LINE + UtilConstants.FOUR_SPACE_INDENTATION + UtilConstants.JAVA_DOC_FIRST_LINE |
| + MethodsGenerator.getDefaultConstructorString(BUILDER_CLASS_MASK, className)); |
| methods.add(MethodsGenerator.getBuildString(className)); |
| |
| /** |
| * Add methods in builder class. |
| */ |
| for (String method : methods) { |
| appendMethod(file, method + UtilConstants.NEW_LINE); |
| } |
| return file; |
| } |
| |
| /** |
| * Returns generated impl class file for current node. |
| * |
| * @param file file |
| * @param className class name |
| * @param pkg generated file package |
| * @param attrList attribute's info |
| * @return impl class file |
| * @throws IOException when fails to write in file |
| */ |
| public static File generateImplClassFile(File file, String className, String pkg, List<AttributeInfo> attrList) |
| throws IOException { |
| |
| initiateFile(file, className, IMPL_CLASS_MASK, null, pkg); |
| |
| List<String> attributes; |
| try { |
| attributes = TempDataStore.getTempData(TempDataStoreType.ATTRIBUTE, className); |
| } catch (ClassNotFoundException | IOException e) { |
| log.info("There is no attribute info of " + className + " YANG file in the temporary files."); |
| throw new IOException("Fail to read data from temp file."); |
| } |
| |
| /** |
| * Add attributes to the file. |
| */ |
| for (String attribute : attributes) { |
| insert(file, UtilConstants.NEW_LINE + UtilConstants.FOUR_SPACE_INDENTATION + attribute); |
| } |
| insert(file, UtilConstants.NEW_LINE); |
| |
| List<String> methods; |
| try { |
| methods = TempDataStore.getTempData(TempDataStoreType.IMPL_METHODS, className + UtilConstants.IMPL); |
| } catch (ClassNotFoundException | IOException e) { |
| log.info("There is no attribute info of " + className + " YANG file in the temporary files."); |
| throw new IOException("Fail to read data from temp file."); |
| } |
| |
| /** |
| * Add default constructor and constructor methods. |
| */ |
| methods.add(UtilConstants.JAVA_DOC_FIRST_LINE |
| + MethodsGenerator.getDefaultConstructorString(IMPL_CLASS_MASK, className)); |
| methods.add(MethodsGenerator.getConstructorString(className)); |
| |
| /** |
| * Add methods in impl class. |
| */ |
| for (String method : methods) { |
| appendMethod(file, UtilConstants.FOUR_SPACE_INDENTATION + method + UtilConstants.NEW_LINE); |
| } |
| insert(file, UtilConstants.CLOSE_CURLY_BRACKET + UtilConstants.NEW_LINE); |
| |
| return file; |
| } |
| |
| /** |
| * Initiate generation of file based on generated file type. |
| * |
| * @param file generated file |
| * @param className generated file class name |
| * @param type generated file type |
| * @param imports imports for the file |
| * @param pkg generated file package |
| * @throws IOException when fails to generate a file |
| */ |
| private static void initiateFile(File file, String className, int type, List<String> imports, |
| String pkg) throws IOException { |
| try { |
| file.createNewFile(); |
| appendContents(file, className, type, imports, pkg); |
| } catch (IOException e) { |
| throw new IOException("Failed to create " + file.getName() + " class file."); |
| } |
| } |
| |
| /** |
| * Appends the temp files to main files. |
| * |
| * @param appendFile temp file |
| * @param srcFile main file |
| * @throws IOException when fails to append contents |
| */ |
| public static void appendFileContents(File appendFile, File srcFile) throws IOException { |
| try { |
| FileSystemUtil.appendFileContents(appendFile, srcFile); |
| } catch (IOException e) { |
| throw new IOException("Failed to append " + appendFile + " in " + srcFile); |
| } |
| } |
| |
| /** |
| * Append methods to the generated files. |
| * |
| * @param file file in which method needs to be appended |
| * @param method method which needs to be appended |
| * @exception IOException file operation exceptions |
| */ |
| private static void appendMethod(File file, String method) throws IOException { |
| insert(file, method); |
| } |
| |
| /** |
| * Closes the current generated file. |
| * |
| * @param fileType generate file type |
| * @param yangName file name |
| * @return end of class definition string |
| */ |
| public static String closeFile(int fileType, String yangName) { |
| return JavaCodeSnippetGen.getJavaClassDefClose(fileType, yangName); |
| } |
| |
| /** |
| * Parses attribute info and fetch specific data and creates serialized |
| * files of it. |
| * |
| * @param attr attribute info |
| * @param genFileType generated file type |
| * @param className class name |
| */ |
| public static void parseAttributeInfo(AttributeInfo attr, int genFileType, String className) { |
| |
| String attrString = ""; |
| String builderInterfaceMethodString = ""; |
| String builderClassMethodString = ""; |
| String implClassMethodString = ""; |
| String getterString = ""; |
| className = JavaIdentifierSyntax.getCaptialCase(className); |
| |
| try { |
| /* |
| * Get the attribute definition and save attributes to temporary |
| * file. |
| */ |
| attrString = JavaCodeSnippetGen.getJavaAttributeDefination(attr.getImportInfo().getPkgInfo(), |
| attr.getImportInfo().getClassInfo(), |
| attr.getAttributeName()); |
| TempDataStore.setTempData(attrString, TempDataStore.TempDataStoreType.ATTRIBUTE, className); |
| |
| if ((genFileType & INTERFACE_MASK) != 0) { |
| getterString = MethodsGenerator.getGetterString(attr); |
| TempDataStore.setTempData(getterString, TempDataStore.TempDataStoreType.GETTER_METHODS, className); |
| } |
| |
| if ((genFileType & BUILDER_INTERFACE_MASK) != 0) { |
| builderInterfaceMethodString = MethodsGenerator.parseBuilderInterfaceMethodString(attr, className); |
| TempDataStore.setTempData(builderInterfaceMethodString, |
| TempDataStore.TempDataStoreType.BUILDER_INTERFACE_METHODS, |
| className + UtilConstants.BUILDER + UtilConstants.INTERFACE); |
| } |
| |
| if ((genFileType & BUILDER_CLASS_MASK) != 0) { |
| builderClassMethodString = MethodsGenerator.parseBuilderMethodString(attr, className); |
| TempDataStore.setTempData(builderClassMethodString, TempDataStore.TempDataStoreType.BUILDER_METHODS, |
| className + UtilConstants.BUILDER); |
| } |
| |
| if ((genFileType & IMPL_CLASS_MASK) != 0) { |
| implClassMethodString = MethodsGenerator.parseImplMethodString(attr); |
| TempDataStore.setTempData(implClassMethodString, TempDataStore.TempDataStoreType.IMPL_METHODS, |
| className + UtilConstants.IMPL); |
| } |
| } catch (IOException e) { |
| log.info("Failed to set data for " + attr.getAttributeName() + " in temp data files."); |
| } |
| |
| } |
| |
| /** |
| * Appends all the contents into a generated java file. |
| * |
| * @param file generated file |
| * @param fileName generated file name |
| * @param type generated file type |
| * @param pkg generated file package |
| * @param importsList list of java imports |
| * @throws IOException when fails to append contents |
| */ |
| private static void appendContents(File file, String fileName, int type, List<String> importsList, |
| String pkg) throws IOException { |
| |
| if ((type & IMPL_CLASS_MASK) != 0) { |
| |
| write(file, fileName, type, JavaDocType.IMPL_CLASS); |
| } else if ((type & BUILDER_INTERFACE_MASK) != 0) { |
| |
| write(file, fileName, type, JavaDocType.BUILDER_INTERFACE); |
| } else { |
| |
| if ((type & INTERFACE_MASK) != 0) { |
| insert(file, CopyrightHeader.getCopyrightHeader()); |
| insert(file, "package" + UtilConstants.SPACE + pkg + UtilConstants.SEMI_COLAN + UtilConstants.NEW_LINE); |
| if (importsList != null) { |
| insert(file, UtilConstants.NEW_LINE); |
| for (String imports : importsList) { |
| insert(file, imports); |
| } |
| insert(file, UtilConstants.NEW_LINE); |
| } |
| write(file, fileName, type, JavaDocType.INTERFACE); |
| } else if ((type & BUILDER_CLASS_MASK) != 0) { |
| insert(file, CopyrightHeader.getCopyrightHeader()); |
| insert(file, "package" + UtilConstants.SPACE + pkg + UtilConstants.SEMI_COLAN + UtilConstants.NEW_LINE); |
| if (importsList != null) { |
| insert(file, UtilConstants.NEW_LINE); |
| for (String imports : importsList) { |
| insert(file, imports); |
| } |
| insert(file, UtilConstants.NEW_LINE); |
| } |
| write(file, fileName, type, JavaDocType.BUILDER_CLASS); |
| } |
| } |
| } |
| |
| /** |
| * Write data to the specific generated file. |
| * |
| * @param file generated file |
| * @param fileName file name |
| * @param genType generated file type |
| * @param javaDocType java doc type |
| * @throws IOException when fails to write into a file |
| */ |
| private static void write(File file, String fileName, int genType, JavaDocGen.JavaDocType javaDocType) |
| throws IOException { |
| |
| insert(file, JavaDocGen.getJavaDoc(javaDocType, fileName)); |
| insert(file, JavaCodeSnippetGen.getJavaClassDefStart(genType, fileName)); |
| } |
| |
| /** |
| * Insert in the generated file. |
| * |
| * @param file file in which need to be inserted |
| * @param data data which need to be inserted |
| * @throws IOException when fails to insert into file |
| */ |
| public static void insert(File file, String data) throws IOException { |
| try { |
| FileSystemUtil.insertStringInFile(file, data); |
| } catch (IOException e) { |
| throw new IOException("Failed to insert in " + file + "file"); |
| } |
| } |
| |
| /** |
| * Removes temp files. |
| * |
| * @param file file to be removed |
| */ |
| public static void clean(File file) { |
| if (file.exists()) { |
| file.delete(); |
| } |
| } |
| } |