com.marklogic.contentpump.GzipDelimitedJSONReader Maven / Gradle / Ivy
/*
* Copyright (c) 2019 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 {
public static final Log LOG = LogFactory
.getLog(GzipDelimitedJSONReader.class);
private InputStream gzipIn;
@Override
protected void initFileStream(InputSplit inSplit)
throws IOException, InterruptedException {
fileIn = openFile(inSplit, true);
if (fileIn == null) {
return;
}
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();
}
}
}