com.linkedin.mapred.AvroDistributedCacheFileReader.java Source code

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Here is the source code for com.linkedin.mapred.AvroDistributedCacheFileReader.java

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/**
 * Copyright 2014 LinkedIn Corp. All rights reserved.
 * 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.linkedin.mapred;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.filecache.DistributedCache;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapred.JobConf;

public class AvroDistributedCacheFileReader extends AvroFileReader {
    public AvroDistributedCacheFileReader(JobConf conf, boolean isSpecific) {
        super(conf, isSpecific);
    }

    public AvroDistributedCacheFileReader(JobConf conf) {
        this(conf, false);
    }

    @Override
    protected List<Path> getPaths(String filePath) throws IOException {
        Path[] localFiles = DistributedCache.getLocalCacheFiles(getConf());
        List<Path> paths = new ArrayList<Path>();

        for (Path file : localFiles) {
            if (!file.toString().contains(filePath)) {
                continue;
            }

            paths.add(file);
        }

        return paths;
    }

    @Override
    protected FileSystem getFilesystem(JobConf conf, Path path) throws IOException {
        return FileSystem.getLocal(new Configuration());
    }
}