com.ibm.jaql.util.hadoop.HadoopShim.java Source code

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Here is the source code for com.ibm.jaql.util.hadoop.HadoopShim.java

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/**
 * Copyright (C) IBM Corp. 2010.
 * 
 * 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.ibm.jaql.util.hadoop;

import org.apache.hadoop.fs.FileStatus;

/**
 * This class hides simple differences between hadoop versions. 
 */
public class HadoopShim {

    /** Hadoop 0.18.3 doesn't have access time, but is available in 0.20.1.
     *  Returns -1 on unsupported versions. 
     */
    public static long getAccessTime(FileStatus stat) {
        return stat.getAccessTime();
    }

}