/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.nutch.indexer;
import java.io.IOException;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapred.FileOutputFormat;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.RecordWriter;
import org.apache.hadoop.mapred.Reporter;
import org.apache.hadoop.util.Progressable;
public class IndexerOutputFormat extends FileOutputFormat<Text, NutchIndexAction> {
@Override
public RecordWriter<Text, NutchIndexAction> getRecordWriter(FileSystem ignored,
JobConf job, String name, Progressable progress) throws IOException {
// populate JobConf with field indexing options
IndexingFilters filters = new IndexingFilters(job);
final NutchIndexWriter[] writers =
NutchIndexWriterFactory.getNutchIndexWriters(job);
for (final NutchIndexWriter writer : writers) {
writer.open(job, name);
}
return new RecordWriter<Text, NutchIndexAction>() {
public void close(Reporter reporter) throws IOException {
for (final NutchIndexWriter writer : writers) {
writer.close();
}
}
public void write(Text key, NutchIndexAction indexAction) throws IOException {
for (final NutchIndexWriter writer : writers) {
if (indexAction.action == NutchIndexAction.ADD) {
writer.write(indexAction.doc);
}
if (indexAction.action == NutchIndexAction.DELETE) {
writer.delete(key.toString());
}
}
}
};
}
}