Java Byte Array Uncompress unCompressToString(byte[] b)

Description

un Compress To String

License

Apache License

Declaration

public static String unCompressToString(byte[] b) 

Method Source Code

//package com.java2s;
/*//from w  w  w .  j  a v a2  s.  c  o m
 * Copyright (C) 2015 The CloudKit Open Source Project
 *
 * 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.
 */

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.zip.GZIPInputStream;

public class Main {

    public static String unCompressToString(byte[] b) {

        if (b == null || b.length == 0) {
            return null;
        }

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ByteArrayInputStream in = new ByteArrayInputStream(b);

        try {
            GZIPInputStream gunzip = new GZIPInputStream(in);
            byte[] buffer = new byte[256];
            int n;
            while ((n = gunzip.read(buffer)) >= 0) {
                out.write(buffer, 0, n);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return out.toString();
    }

    public static String unCompressToString(byte[] b, String encoding) {

        if (b == null || b.length == 0) {
            return null;
        }

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        ByteArrayInputStream in = new ByteArrayInputStream(b);
        try {
            GZIPInputStream gunzip = new GZIPInputStream(in);
            byte[] buffer = new byte[256];
            int n;
            while ((n = gunzip.read(buffer)) >= 0) {
                out.write(buffer, 0, n);
            }
            return out.toString(encoding);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}

Related

1. uncompressByteArray(byte[] xmlByteArray)
2. uncompressBytes(byte[] bytesToUncompress)
3. uncompressGzip(byte[] b)
4. uncompressObject(byte[] compressed)
5. unCompressString(final byte[] data, final String encoding)