| /******************************************************************************* |
| * Copyright (c) 2014 Bosch Software Innovations GmbH and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * and Eclipse Distribution License v1.0 which accompany this distribution. |
| * |
| * The Eclipse Public License is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * The Eclipse Distribution License is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * Contributors: |
| * Bosch Software Innovations GmbH - Please refer to git log |
| * |
| *******************************************************************************/ |
| package org.eclipse.vorto.codegen.internal; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.commons.lang3.StringUtils; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IFileState; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.vorto.codegen.api.IFileWritingStrategy; |
| import org.eclipse.vorto.codegen.api.tasks.Generated; |
| |
| |
| public class WriteGenOverWriteStrategy implements IFileWritingStrategy { |
| |
| private static final String FILENAME_SUFFIX = "_gen"; |
| |
| @Override |
| public void writeFile(Generated generated, IFile existingFile) |
| throws CoreException, IOException { |
| |
| String fileName = generated.getFileName(); |
| IProject project = existingFile.getProject(); |
| |
| if (!existingFile.exists()) { |
| write(generated.getContent(), existingFile); |
| |
| /* |
| * Clearing the file history of the newly created file is because |
| * file history is not deleted when the file is being deleted. So if |
| * the file is not found whether deleted by the system or user , it |
| * will clear the history after creating the file to avoid false |
| * detection of modification. |
| */ |
| existingFile.clearHistory(null); |
| } else { |
| if (isModified(existingFile)) { |
| IFile replacefile = getFile(fileName + FILENAME_SUFFIX, |
| generated.getFolderPath(), project); |
| |
| if (replacefile.exists()) |
| replacefile.delete(true, null); |
| |
| write(generated.getContent(), replacefile); |
| } else { |
| existingFile.delete(true, null); |
| write(generated.getContent(), existingFile); |
| } |
| |
| } |
| |
| } |
| |
| private boolean isModified(IFile existingFile) { |
| IFileState[] history = null; |
| try { |
| history = existingFile.getHistory(null); |
| } catch (CoreException e) { |
| return true; |
| } |
| return history.length != 0; |
| } |
| |
| private IFile getFile(String fileName, String folderPath, IProject project) { |
| IFile file = null; |
| |
| if (StringUtils |
| .equalsIgnoreCase(folderPath, Generated.ROOT_FOLDER_PATH)) { |
| file = project.getFile(fileName); |
| } else { |
| file = project.getFolder(folderPath).getFile(fileName); |
| } |
| |
| return file; |
| } |
| |
| private void write(String contentStr, IFile existingFile) |
| throws CoreException, IOException { |
| InputStream content = IOUtils.toInputStream(contentStr); |
| existingFile.create(content, false, null); |
| content.close(); |
| } |
| |
| } |