text: /**
   * 
   * APDPlat - Application Product Development Platform
   * Copyright (c) 2013, 杨尚川, yang-shangchuan@qq.com
   * 
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or
   * (at your option) any later version.
   * 
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   * 
   * You should have received a copy of the GNU General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   * 
   */
  
  package org.apdplat.qa.util;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileNotFoundException;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.nio.file.Files;
  import java.util.Enumeration;
  import java.util.zip.ZipEntry;
  import java.util.zip.ZipException;
  import java.util.zip.ZipFile;
  import java.util.zip.ZipOutputStream;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   *将文件或是文件夹打包压缩成zip格式
   * @author 杨尚川
   */
  public class ZipUtils {
  
      private static final Logger LOG = LoggerFactory.getLogger(TextExtract.class);
          
      private ZipUtils(){};
      
      /**
       * APDPlat中的重要打包机制
       * 将jar文件中的某个文件夹里面的内容复制到某个文件夹
       * @param jar 包含静态资源的jar包
       * @param subDir jar中包含待复制静态资源的文件夹名称
       * @param loc 静态资源复制到的目标文件夹
       * @param force 目标静态资源存在的时候是否强制覆盖
       */
      public static void unZip(String jar, String subDir, String loc, boolean force){
          try {
              File base=new File(loc);
              if(!base.exists()){
                  base.mkdirs();
              }
              
              ZipFile zip=new ZipFile(new File(jar));
              Enumeration<? extends ZipEntry> entrys = zip.entries();
              while(entrys.hasMoreElements()){
                  ZipEntry entry = entrys.nextElement();
                  String name=entry.getName();
                  if(!name.startsWith(subDir)){
                      continue;
                  }
                  //去掉subDir
                  name=name.replace(subDir,"").trim();
                  if(name.length()<2){
                      LOG.debug(name+" 长度 < 2");
                      continue;
                  }
                  if(entry.isDirectory()){
                      File dir=new File(base,name);
                      if(!dir.exists()){
                          dir.mkdirs();
                          LOG.debug("创建目录");
                      }else{
                          LOG.debug("目录已经存在");
                      }
                      LOG.debug(name+" 是目录");
                  }else{
                      File file=new File(base,name);
                      if(file.exists() && force){
                          file.delete();
                      }
                      if(!file.exists()){
                          InputStream in=zip.getInputStream(entry);
                          Files.copy(in, file.toPath());
                          LOG.debug("创建文件");
                      }else{
                          LOG.debug("文件已经存在");
                      }
                      LOG.debug(name+" 不是目录");
                  }
              }
          } catch (ZipException ex) {
              LOG.error("文件解压失败",ex);
          } catch (IOException ex) {
              LOG.error("文件操作失败",ex);
          }
      }
      
     /**
       * 创建ZIP文件
       * @param sourcePath 文件或文件夹路径
       * @param zipPath 生成的zip文件存在路径（包括文件名）
       */
      public static void createZip(String sourcePath, String zipPath) {
          FileOutputStream fos = null;
          ZipOutputStream zos = null;
          try {
              fos = new FileOutputStream(zipPath);
              zos = new ZipOutputStream(fos);
              writeZip(new File(sourcePath), "", zos);
          } catch (FileNotFoundException e) {
              LOG.error("创建ZIP文件失败",e);
          } finally {
              try {
                  if (zos != null) {
                      zos.close();
                  }
              } catch (IOException e) {
                  LOG.error("创建ZIP文件失败",e);
              }
  
          }
      }
      
      private static void writeZip(File file, String parentPath, ZipOutputStream zos) {
          if(file.exists()){
              if(file.isDirectory()){//处理文件夹
                  parentPath+=file.getName()+File.separator;
                  File [] files=file.listFiles();
                  for(File f:files){
                      writeZip(f, parentPath, zos);
                  }
              }else{
                  FileInputStream fis=null;
                  try {
                      fis=new FileInputStream(file);
                      ZipEntry ze = new ZipEntry(parentPath + file.getName());
                      zos.putNextEntry(ze);
                      byte [] content=new byte[1024];
                      int len;
                      while((len=fis.read(content))!=-1){
                          zos.write(content,0,len);
                          zos.flush();
                      }
                      
                  
                  } catch (FileNotFoundException e) {
                      LOG.error("创建ZIP文件失败",e);
                  } catch (IOException e) {
                      LOG.error("创建ZIP文件失败",e);
                  }finally{
                      try {
                          if(fis!=null){
                              fis.close();
                          }
                      }catch(IOException e){
                          LOG.error("创建ZIP文件失败",e);
                      }
                  }
              }
          }
      }    
      public static void main(String[] args) {
          ZipUtils.unZip("/Users/apple/.m2/repository/org/apdplat/deep-qa/1.1/deep-qa-1.1.jar", "dic", "/Users/apple/dic", true);
          ZipUtils.unZip("/Users/apple/.m2/repository/org/apdplat/deep-qa/1.1/deep-qa-1.1.jar", "questionTypePatterns", "/Users/apple/questionTypePatterns", true);
      }
  }