Java tutorial
/* * Copyright (c) 2014. igitras.com * * 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 com.igitras.codegen.common.utils; import org.apache.commons.io.FileUtils; import java.io.File; import java.io.IOException; import java.util.Collection; import java.util.Collections; /** * Created by m00290368 on 2014-11-27. */ public abstract class Utils { public static File toCanonicalFile(File file) { try { return file.getCanonicalFile(); } catch (IOException e) { return null; } } public static String toCanonicalPath(File file) { try { return file.getCanonicalPath(); } catch (IOException e) { return null; } } public static File getChildFile(File file, String childName) { String canonicalPath = toCanonicalPath(file); if (canonicalPath == null) { return null; } return new File(canonicalPath + File.separator + childName); } public static void createDirectory(File directory) { Assert.notNull(directory, "Directory cannot be null when creating directoryName in it."); if (!directory.exists()) { directory.mkdirs(); } else if (directory.isFile()) { directory.delete(); directory.mkdir(); } } public static <T> boolean checkCollectionEqual(Collection<T> from, Collection<T> to) { if (from == null) { from = Collections.emptySet(); } if (to == null) { to = Collections.emptySet(); } for (T t : from) { if (!to.contains(t)) { return false; } } for (T t : to) { if (!from.contains(t)) { return false; } } return true; } public static void writeFileInDirectory(String content, String fileName, File parentDirectory) { try { FileUtils.writeStringToFile(Utils.getChildFile(parentDirectory, fileName), content); } catch (IOException e) { } } public static String getPathString(Class<?> clazz) { return clazz.getName().replaceAll("\\.", "/") + ".tm"; } }