com.github.ipaas.ideploy.agent.util.ZipUtil.java Source code

Introduction

Here is the source code for com.github.ipaas.ideploy.agent.util.ZipUtil.java

Source

/**
* 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.github.ipaas.ideploy.agent.util;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;

/** 
 * ??? 
 * @author  wudg
 */

public class ZipUtil {

    /**
     * ?
     * @param zipFile
     * @throws Exception
     */
    public static void unZip(String zipFile) throws Exception {
        String targetDir = new File(zipFile).getParent();
        unZip(zipFile, targetDir);
    }

    /**
     * 
     * @param srcFile  ?
     * @param targetDir 
     * @throws Exception
     */
    public static void unZip(String zipFile, String targetDir) throws Exception {
        ZipFile zipfile = new ZipFile(zipFile);
        try {
            Enumeration<ZipEntry> entries = zipfile.getEntries();
            if (entries == null || !entries.hasMoreElements()) {
                return;
            }
            //  
            FileUtils.forceMkdir(new File(targetDir));

            // ??

            while (entries.hasMoreElements()) {
                ZipEntry zipEntry = entries.nextElement();
                String fname = zipEntry.getName();

                // 

                if (zipEntry.isDirectory()) {
                    String fpath = FilenameUtils.normalize(targetDir + "/" + fname);
                    FileUtils.forceMkdir(new File(fpath));
                    continue;

                }
                // ?

                if (StringUtils.contains(fname, "/")) {
                    String tpath = StringUtils.substringBeforeLast(fname, "/");
                    String fpath = FilenameUtils.normalize(targetDir + "/" + tpath);
                    FileUtils.forceMkdir(new File(fpath));
                }
                // ? 
                InputStream input = null;
                OutputStream output = null;

                try {
                    input = zipfile.getInputStream(zipEntry);
                    String file = FilenameUtils.normalize(targetDir + "/" + fname);
                    output = new FileOutputStream(file);
                    IOUtils.copy(input, output);
                } finally {
                    IOUtils.closeQuietly(input);
                    IOUtils.closeQuietly(output);
                }
            }
        } finally {
            ZipFile.closeQuietly(zipfile);
        }

    }

}