/**
* This software is licensed to you under the Apache License, Version 2.0 (the
* "Apache License").
*
* LinkedIn's contributions are made under the Apache License. If you contribute
* to the Software, the contributions will be deemed to have been made under the
* Apache License, unless you expressly indicate otherwise. Please do not make any
* contributions that would be inconsistent with the Apache License.
*
* You may obtain a copy of the Apache License at http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, this software
* distributed under the Apache License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the Apache
* License for the specific language governing permissions and limitations for the
* software governed under the Apache License.
*
* © 2012 LinkedIn Corp. All Rights Reserved.
*/
package com.senseidb.gateway.jms;
import java.util.Comparator;
import java.util.Set;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.TopicConnectionFactory;
import org.apache.commons.configuration.ConfigurationException;
import org.json.JSONObject;
import proj.zoie.api.DataConsumer.DataEvent;
import proj.zoie.dataprovider.jms.DataEventBuilder;
import proj.zoie.dataprovider.jms.JMSStreamDataProvider;
import proj.zoie.dataprovider.jms.TopicFactory;
import proj.zoie.impl.indexing.StreamDataProvider;
import proj.zoie.impl.indexing.ZoieConfig;
import com.senseidb.gateway.SenseiGateway;
import com.senseidb.indexing.DataSourceFilter;
import com.senseidb.indexing.ShardingStrategy;
public class JmsDataProviderBuilder extends SenseiGateway<Message>{
public static final String name = "jms";
private final Comparator<String> _versionComparator = ZoieConfig.DEFAULT_VERSION_COMPARATOR;
@Override
public StreamDataProvider<JSONObject> buildDataProvider(final DataSourceFilter<Message> dataFilter,
String oldSinceKey,
ShardingStrategy shardingStrategy,
Set<Integer> partitions) throws Exception
{
final String topic = config.get("jms.topic");
final String clientID = config.get("jms.clientId");
final String topicFac = config.get("jms.topicFactory");
TopicFactory topicFactory = pluginRegistry.getBeanByName(topicFac, TopicFactory.class);
if (topicFactory == null)
topicFactory = pluginRegistry.getBeanByFullPrefix(topicFac, TopicFactory.class);
if (topicFactory == null){
throw new ConfigurationException("topicFactory not defined: "+topicFac);
}
TopicConnectionFactory connectionFactory = pluginRegistry.getBeanByName(config.get("jms.connectionFactory"), TopicConnectionFactory.class);
if (connectionFactory == null)
connectionFactory = pluginRegistry.getBeanByFullPrefix(config.get("jms.connectionFactory"), TopicConnectionFactory.class);
if (connectionFactory == null){
throw new ConfigurationException("topic connection factory not defined.");
}
DataEventBuilder<JSONObject> dataEventBuilder = new DataEventBuilder<JSONObject>() {
final DataSourceFilter<Message> filter = dataFilter;
@Override
public DataEvent<JSONObject> buildDataEvent(Message message)
throws JMSException {
try {
return new DataEvent<JSONObject>(filter.filter(message), String.valueOf(System.nanoTime()));
} catch (Exception e) {
throw new JMSException(e.getMessage());
}
}
};
JMSStreamDataProvider<JSONObject> provider = new JMSStreamDataProvider<JSONObject>(topic, clientID, connectionFactory, topicFactory, dataEventBuilder, _versionComparator);
return provider;
}
@Override
public Comparator<String> getVersionComparator() {
return _versionComparator;
}
}