Java Unzip InputStream unzip(InputStream input, String targetDir)

Description

unzip

License

Apache License

Declaration

public static final void unzip(InputStream input, String targetDir)
            throws IOException 

Method Source Code

//package com.java2s;
/*//w  w w .  j  av a 2s .  c  om
 * 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.
 */

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import java.util.zip.ZipEntry;

import java.util.zip.ZipInputStream;

public class Main {
    public static final void unzip(InputStream input, String targetDir)
            throws IOException {

        File dir = new File(targetDir);
        if (!dir.exists() && !dir.mkdir()) {
            throw new IOException("Unable to create dir" + dir);
        }

        ZipInputStream zipInput;

        zipInput = new ZipInputStream(input);

        ZipEntry entry;
        while ((entry = zipInput.getNextEntry()) != null) {

            File newFile = new File(dir, entry.getName());
            if (entry.isDirectory()) {
                if (!newFile.mkdirs()) {
                    throw new IOException("Unable to create directory"
                            + newFile);
                }
                continue;
            }

            copyInputStream(zipInput, new BufferedOutputStream(
                    new FileOutputStream(newFile)));
            zipInput.closeEntry();
        }

        zipInput.close();
    }

    public static final void copyInputStream(InputStream in,
            OutputStream out) throws IOException {
        byte[] buffer = new byte[1024];
        int len;

        while ((len = in.read(buffer)) >= 0)
            out.write(buffer, 0, len);

        out.close();
    }
}

Related

1. unzip(InputStream from, String to, String pattern)
2. unzip(InputStream in)
3. unzip(InputStream in, File destination)
4. unzip(InputStream in, File toDir)
5. unzip(InputStream input, File dest)
6. unzip(InputStream inputStream, String destDirectory)
7. unzip(InputStream inputStream, String outputFolder)
8. unzip(InputStream is, File destDir)
9. unzip(InputStream libInputStream, String path)