JAVA 소스 코드 파일 licence 정보 헤더 추가

원본 파일
http://yangshangchuan.iteye.com/blog/1841150

/**
 * 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;
/**
 *  JAVA          licence   
 *     package、import、     、   public class
 *    Java7    ，  
 * @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="/**
" +
" * 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.
" +
" */";
        addLicenceForJavaFile(new File("D:\\Workspaces\\NetBeansProjects\\APDPlat"),licence);
        System.out.println("  "+count+"  Java       licence   ");
        if(fail.size()>0){
            System.out.println("       "+fail.size());
            for(String f : fail){
                System.out.println("        "+f);
            }
        }
        if(wrong.size()>0){
            System.out.println("JAVA        "+wrong.size());
            for(String w : wrong){
                System.out.println("        "+w);
            }
        }
    }
    /**
     *  JAVA          licence   
     * @param path         
     * @param licence      （ netbeans                 ，IDE     ，   ）
     */
    private static void addLicenceForJavaFile(File path, String licence) {
        if (path != null && path.exists()) {
            //     
            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]);
                    //    
                    addLicenceForJavaFile(child, licence);
                }
            } else {
                //  java  
                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);
                        }
                        //        licence，   
                        int pos = text.indexOf(licence);
                        if(pos!=-1){
                            return;
                        }
                        // package   ，  package     
                        if (text.indexOf("package") != -1) {
                            text = text.substring(text.indexOf("package"));
                        }
                        //  package   ， import   ，  import     
                        else if (text.indexOf("package") == -1 && text.indexOf("import") != -1) {
                            text = text.substring(text.indexOf("import"));
                        }
                        //  package     import   ，       ，             
                        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("/**"));
                        }
                        //  package     import   ，            public class     
                        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("

");
                            writer.write(text);
                        }
                    }
                    catch (Exception ex) {
                        fail.add(path.getAbsolutePath());
                    }
                }
            }
        }
    }
}