给JAVA源代码文件统一地添加licence信息头
/** * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.apdplat.platform.util;import java.io.*;import java.util.ArrayList;import java.util.List;/**?* 给JAVA源代码文件统一地添加licence信息头?* 检查文件package、import、类级别注释、是否有public class?* 用到了Java7的新特性，强大?* @author ysc?*/public class AddLicenceForJavaFile { private static int count = 0; private static List<String> fail = new ArrayList<>(); private static List<String> wrong = new ArrayList<>(); public static void main(String[] args) { String licence="/**\n" +" * Licensed to the Apache Software Foundation (ASF) under one or more\n" +" * contributor license agreements. See the NOTICE file distributed with\n" +" * this work for additional information regarding copyright ownership.\n" +" * The ASF licenses this file to You under the Apache License, Version 2.0\n" +" * (the "License"); you may not use this file except in compliance with\n" +" * the License. You may obtain a copy of the License at\n" +" *\n" +" * http://www.apache.org/licenses/LICENSE-2.0\n" +" *\n" +" * Unless required by applicable law or agreed to in writing, software\n" +" * distributed under the License is distributed on an "AS IS" BASIS,\n" +" * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n" +" * See the License for the specific language governing permissions and\n" +" * limitations under the License.\n" +" */"; addLicenceForJavaFile(new File("D:\\Workspaces\\NetBeansProjects\\APDPlat"),licence); System.out.println("为 "+count+" 个Java源代码文件添加licence信息头"); if(fail.size()>0){ System.out.println("处理失败个数 "+fail.size()); for(String f : fail){ System.out.println(" "+f); } } if(wrong.size()>0){ System.out.println("JAVA源代码错误个数 "+wrong.size()); for(String w : wrong){ System.out.println(" "+w); } } } /** * 给JAVA源代码文件统一地添加licence信息头 * @param path 源码所处的根目录 * @param licence 许可证信息（在netbeans中复制一段文本粘贴到变量的双引号内，IDE自动格式化，相当赞） */ private static void addLicenceForJavaFile(File path, String licence) { if (path != null && path.exists()) { //处理文件夹 if (path.isDirectory()) { String[] children = path.list(); for (int i = 0; i < children.length; i++) { File child = new File(path.getPath() + System.getProperty("file.separator") + children[i]); //递归处理 addLicenceForJavaFile(child, licence); } } else { //处理java文件 if (path.getName().toLowerCase().endsWith(".java")) { System.out.println(path.getAbsolutePath()); count++; try { byte[] content; try (RandomAccessFile f = new RandomAccessFile(path, "rw")) { content = new byte[ (int) f.length()]; f.readFully(content); } String text = new String(content); text = text.trim(); while (text.startsWith("/n")) { text = text.substring(1); } //如果已经有同样的licence，则忽略 int pos = text.indexOf(licence); if(pos!=-1){ return; } //有package声明的，保留package以后的内容 if (text.indexOf("package") != -1) { text = text.substring(text.indexOf("package")); } //没有package声明的，有import声明的，保留import以后的内容 else if (text.indexOf("package") == -1 && text.indexOf("import") != -1) { text = text.substring(text.indexOf("import")); } //没有package声明也没有import声明的，有类级别注释的，则保留类级别注释以后的内容 else if (text.indexOf("package") == -1 && text.indexOf("import") == -1 && text.indexOf("/**") != -1 && text.indexOf("public class") != -1 && text.indexOf("/**")<text.indexOf("public class") ) { text = text.substring(text.indexOf("/**")); } //没有package声明也没有import声明的，也没有类级别注释的则保留public class以后的内容 else if (text.indexOf("package") == -1 && text.indexOf("import") == -1 && text.indexOf("public class") != -1 && ( text.indexOf("/**")>text.indexOf("public class") || text.indexOf("/**")==-1 )) { text = text.substring(text.indexOf("public class")); }else{ wrong.add(path.getAbsolutePath()); return; } try (FileWriter writer = new FileWriter(path)) { writer.write(licence); writer.write("\n\n"); writer.write(text); } } catch (Exception ex) { fail.add(path.getAbsolutePath()); } } } } }}
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引自APDPlat commit：https://github.com/ysc/APDPlat/commit/ccc6d366727c63016233662190efb5673e2130f3
