net.orpiske.tcs.utils.compression.Compressor.java Source code

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Here is the source code for net.orpiske.tcs.utils.compression.Compressor.java

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/**
 Copyright 2014 Otavio Rodolfo Piske
    
 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 net.orpiske.tcs.utils.compression;

import org.apache.commons.io.IOUtils;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.zip.GZIPOutputStream;

/**
 * Data compressor
 */
public class Compressor {

    private Compressor() {
    }

    /**
     * Compress a string in GZIP format
     * @param text the string to compress
     * @return An array of compressed bytes
     * @throws IOException if unable to compress it
     */
    public static byte[] compress(final String text) throws IOException {
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        GZIPOutputStream gzipOutputStream = null;

        try {
            gzipOutputStream = new GZIPOutputStream(outputStream);
            gzipOutputStream.write(text.getBytes());
            gzipOutputStream.close();

            return outputStream.toByteArray();
        } finally {
            IOUtils.closeQuietly(gzipOutputStream);
            IOUtils.closeQuietly(outputStream);
        }
    }
}