/** | |
* 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.hadoop.contrib.index.example; | |
import java.io.IOException; | |
import org.apache.hadoop.contrib.index.mapred.DocumentAndOp; | |
import org.apache.hadoop.contrib.index.mapred.DocumentID; | |
import org.apache.hadoop.contrib.index.mapred.ILocalAnalysis; | |
import org.apache.hadoop.mapred.JobConf; | |
import org.apache.hadoop.mapred.OutputCollector; | |
import org.apache.hadoop.mapred.Reporter; | |
import org.apache.lucene.document.Document; | |
import org.apache.lucene.document.Field; | |
import org.apache.lucene.index.Term; | |
/** | |
* Convert LineDocTextAndOp to DocumentAndOp as required by ILocalAnalysis. | |
*/ | |
public class LineDocLocalAnalysis implements | |
ILocalAnalysis<DocumentID, LineDocTextAndOp> { | |
private static String docidFieldName = "id"; | |
private static String contentFieldName = "content"; | |
/* (non-Javadoc) | |
* @see org.apache.hadoop.mapred.Mapper#map(java.lang.Object, java.lang.Object, org.apache.hadoop.mapred.OutputCollector, org.apache.hadoop.mapred.Reporter) | |
*/ | |
public void map(DocumentID key, LineDocTextAndOp value, | |
OutputCollector<DocumentID, DocumentAndOp> output, Reporter reporter) | |
throws IOException { | |
DocumentAndOp.Op op = value.getOp(); | |
Document doc = null; | |
Term term = null; | |
if (op == DocumentAndOp.Op.INSERT || op == DocumentAndOp.Op.UPDATE) { | |
doc = new Document(); | |
doc.add(new Field(docidFieldName, key.getText().toString(), | |
Field.Store.YES, Field.Index.UN_TOKENIZED)); | |
doc.add(new Field(contentFieldName, value.getText().toString(), | |
Field.Store.NO, Field.Index.TOKENIZED)); | |
} | |
if (op == DocumentAndOp.Op.DELETE || op == DocumentAndOp.Op.UPDATE) { | |
term = new Term(docidFieldName, key.getText().toString()); | |
} | |
output.collect(key, new DocumentAndOp(op, doc, term)); | |
} | |
/* (non-Javadoc) | |
* @see org.apache.hadoop.mapred.JobConfigurable#configure(org.apache.hadoop.mapred.JobConf) | |
*/ | |
public void configure(JobConf job) { | |
} | |
/* (non-Javadoc) | |
* @see org.apache.hadoop.io.Closeable#close() | |
*/ | |
public void close() throws IOException { | |
} | |
} |