com.marklogic.contentpump.GzipDelimitedJSONReader.java Source code

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Here is the source code for com.marklogic.contentpump.GzipDelimitedJSONReader.java

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/*
 * Copyright 2003-2016 MarkLogic Corporation
 *
 * 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.marklogic.contentpump;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.util.zip.GZIPInputStream;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.lib.input.FileSplit;

/**
 * @author mattsun
 *
 */
public class GzipDelimitedJSONReader extends DelimitedJSONReader<Text> {
    public static final Log LOG = LogFactory.getLog(GzipDelimitedJSONReader.class);

    private InputStream gzipIn;

    @Override
    protected void initFileStream(InputSplit inSplit) throws IOException, InterruptedException {
        setFile(((FileSplit) inSplit).getPath());
        configFileNameAsCollection(conf, file);
        fileIn = fs.open(file);
        gzipIn = new GZIPInputStream(fileIn);
        instream = new InputStreamReader(gzipIn, encoding);
        reader = new LineNumberReader(instream);
    }

    @Override
    public float getProgress() throws IOException, InterruptedException {
        return hasNext ? 0 : 1;
    }

    @Override
    public void close() throws IOException {
        super.close();
        if (gzipIn != null) {
            gzipIn.close();
        }
    }

}