com.pinterest.secor.util.CompressionUtil.java Source code

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Here is the source code for com.pinterest.secor.util.CompressionUtil.java

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/**
 * 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.
 */
package com.pinterest.secor.util;

import java.util.Collections;
import java.util.LinkedList;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.apache.hadoop.io.compress.CompressionCodecFactory;

/**
 * 
 * Compression Codec related helper methods
 * 
 * @author Praveen Murugesan (praveen@uber.com)
 *
 */
public class CompressionUtil {

    public static CompressionCodec createCompressionCodec(String className) throws Exception {
        Configuration configuration = new Configuration();
        CompressionCodecFactory.setCodecClasses(configuration,
                new LinkedList<Class>(Collections.singletonList(Class.forName(className))));
        CompressionCodecFactory ccf = new CompressionCodecFactory(configuration);
        return ccf.getCodecByClassName(className);
    }
}