com.marklogic.contentpump.CompressedDocumentInputFormat 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 org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.JobContext;
import org.apache.hadoop.mapreduce.RecordReader;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import com.marklogic.mapreduce.DocumentURIWithSourceInfo;
import com.marklogic.mapreduce.MarkLogicConstants;
/**
* InputFormat for reading compressed documents from file systems. One zip entry
* in a compressed file on the file system is one record (key value pair).
*
* @author ali
*
* @param
*/
public class CompressedDocumentInputFormat extends
FileAndDirectoryInputFormat {
public static final Log LOG =
LogFactory.getLog(CompressedDocumentReader.class);
@SuppressWarnings("unchecked")
@Override
public RecordReader createRecordReader(
InputSplit split, TaskAttemptContext context)
throws IOException, InterruptedException {
Configuration conf = context.getConfiguration();
boolean streaming = conf.getBoolean(
MarkLogicConstants.OUTPUT_STREAMING, false);
if (streaming) {
return (RecordReader)
new CompressedStreamingReader();
} else {
return new CompressedDocumentReader();
}
}
@Override
protected boolean isSplitable(JobContext context, Path filename) {
return false;
}
}