com.marklogic.contentpump.DocumentMapper 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.mapreduce.Counter;
import com.marklogic.mapreduce.MarkLogicCounter;
import com.marklogic.mapreduce.DocumentURI;
/**
* Maps (file name, content) as (DocumentURI, VALUE) to (URI, document) as
* (DocumentURI, VALUE).
*
* @author ali
*
* @param
*/
public class DocumentMapper extends
BaseMapper {
public static final Log LOG = LogFactory.getLog(DocumentMapper.class);
protected Counter readCount;
protected Counter attemptedCount;
public void map(DocumentURI uri, VALUE fileContent, Context context)
throws IOException, InterruptedException {
synchronized(readCount) {
readCount.increment(1);
}
if (uri == null) {
return;
} else if (uri.getUri().isEmpty()) {
LOG.warn("Skipped record: " + uri);
return;
}
synchronized(attemptedCount) {
attemptedCount.increment(1);
}
context.write(uri, fileContent);
}
@Override
public void setup(Context context) {
readCount = context.getCounter(
MarkLogicCounter.INPUT_RECORDS);
attemptedCount = context.getCounter(
MarkLogicCounter.OUTPUT_RECORDS);
}
}