/*
* 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.solr;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map.Entry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.mapred.JobConf;
import org.apache.nutch.indexer.NutchDocument;
import org.apache.nutch.indexer.NutchField;
import org.apache.nutch.indexer.NutchIndexWriter;
import org.apache.nutch.indexer.IndexerMapReduce;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.request.UpdateRequest;
import org.apache.solr.common.SolrInputDocument;
import org.apache.solr.common.params.ModifiableSolrParams;
import org.apache.solr.common.util.DateUtil;
public class SolrWriter implements NutchIndexWriter {
public static final Logger LOG = LoggerFactory.getLogger(SolrWriter.class);
private SolrServer solr;
private SolrMappingReader solrMapping;
private ModifiableSolrParams params;
private final List<SolrInputDocument> inputDocs =
new ArrayList<SolrInputDocument>();
private int commitSize;
private int numDeletes = 0;
private boolean delete = false;
public void open(JobConf job, String name) throws IOException {
SolrServer server = SolrUtils.getCommonsHttpSolrServer(job);
init(server, job);
}
// package protected for tests
void init(SolrServer server, JobConf job) throws IOException {
solr = server;
commitSize = job.getInt(SolrConstants.COMMIT_SIZE, 1000);
solrMapping = SolrMappingReader.getInstance(job);
delete = job.getBoolean(IndexerMapReduce.INDEXER_DELETE, false);
// parse optional params
params = new ModifiableSolrParams();
String paramString = job.get(SolrConstants.PARAMS);
if (paramString != null) {
String[] values = paramString.split("&");
for (String v : values) {
String[] kv = v.split("=");
if (kv.length < 2) {
continue;
}
params.add(kv[0], kv[1]);
}
}
}
public void delete(String key) throws IOException {
if (delete) {
try {
solr.deleteById(key);
numDeletes++;
} catch (final SolrServerException e) {
throw makeIOException(e);
}
}
}
public void write(NutchDocument doc) throws IOException {
final SolrInputDocument inputDoc = new SolrInputDocument();
for(final Entry<String, NutchField> e : doc) {
for (final Object val : e.getValue().getValues()) {
// normalise the string representation for a Date
Object val2 = val;
if (val instanceof Date){
val2 = DateUtil.getThreadLocalDateFormat().format(val);
}
if (e.getKey().equals("content")) {
val2 = SolrUtils.stripNonCharCodepoints((String)val);
}
inputDoc.addField(solrMapping.mapKey(e.getKey()), val2, e.getValue().getWeight());
String sCopy = solrMapping.mapCopyKey(e.getKey());
if (sCopy != e.getKey()) {
inputDoc.addField(sCopy, val);
}
}
}
inputDoc.setDocumentBoost(doc.getWeight());
inputDocs.add(inputDoc);
if (inputDocs.size() + numDeletes >= commitSize) {
try {
LOG.info("Indexing " + Integer.toString(inputDocs.size()) + " documents");
LOG.info("Deleting " + Integer.toString(numDeletes) + " documents");
numDeletes = 0;
UpdateRequest req = new UpdateRequest();
req.add(inputDocs);
req.setParams(params);
req.process(solr);
} catch (final SolrServerException e) {
throw makeIOException(e);
}
inputDocs.clear();
}
}
public void close() throws IOException {
try {
if (!inputDocs.isEmpty()) {
LOG.info("Indexing " + Integer.toString(inputDocs.size()) + " documents");
if (numDeletes > 0) {
LOG.info("Deleting " + Integer.toString(numDeletes) + " documents");
}
UpdateRequest req = new UpdateRequest();
req.add(inputDocs);
req.setParams(params);
req.process(solr);
inputDocs.clear();
}
// solr.commit();
} catch (final SolrServerException e) {
throw makeIOException(e);
}
}
public static IOException makeIOException(SolrServerException e) {
final IOException ioe = new IOException();
ioe.initCause(e);
return ioe;
}
}