Java tutorial
/* * Copyright 2013 Alex Lin. * * 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.opoo.press.source; import org.apache.commons.io.FileUtils; import org.apache.commons.io.FilenameUtils; import org.apache.commons.lang.StringUtils; import org.opoo.press.Source; import org.opoo.press.SourceEntry; import org.opoo.press.SourceManager; import org.yaml.snakeyaml.Yaml; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.Map; /** * @author Alex Lin * */ public class SourceManagerImpl implements SourceManager { private Yaml yaml = new Yaml(); /* (non-Javadoc) * @see org.opoo.press.SourceManager#saveSourceToFile(org.opoo.press.Source) */ @Override public void saveSourceToFile(Source source) { File file = source.getSourceEntry().getFile(); File dir = file.getParentFile(); if (!dir.exists()) { dir.mkdirs(); } else { if (!dir.isDirectory()) { throw new RuntimeException("Can not save file, '" + dir + "' is not a valid directory."); } } List<String> lines = new ArrayList<String>(); lines.add(Source.TRIPLE_DASHED_LINE); //for(Map.Entry<String, Object> en: source.getMeta().entrySet()){ // //} String line = yaml.dumpAsMap(source.getMeta()); lines.add(line); lines.add(Source.TRIPLE_DASHED_LINE); lines.add(source.getContent()); try { FileUtils.writeLines(file, "UTF-8", lines); } catch (IOException e) { throw new RuntimeException("Write file exception", e); } } /* (non-Javadoc) * @see org.opoo.press.SourceManager#buildEntry(java.io.File, java.lang.String) */ @Override public SourceEntry buildEntry(File sourceDir, String path) { path = FilenameUtils.separatorsToUnix(path); String[] arr = StringUtils.split(path, "/"); SourceEntry entry = null; for (String s : arr) { sourceDir = new File(sourceDir, s); entry = new SourceEntry(entry, sourceDir); } return entry; } /* (non-Javadoc) * @see org.opoo.press.SourceManager#buildSource(java.io.File, java.lang.String, java.util.Map, java.lang.String) */ @Override public Source buildSource(File sourceDir, String path, Map<String, Object> meta, String content) { SourceEntry entry = buildEntry(sourceDir, path); return new SimpleSource(entry, meta, content); } }