/**
* 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.camel.component.sjms.producer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.Message;
import javax.jms.MessageProducer;
import javax.jms.Session;
import org.apache.camel.AsyncCallback;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.component.sjms.BatchMessage;
import org.apache.camel.component.sjms.MessageProducerResources;
import org.apache.camel.component.sjms.SjmsProducer;
import org.apache.camel.component.sjms.TransactionCommitStrategy;
import org.apache.camel.component.sjms.jms.JmsMessageHelper;
import org.apache.camel.component.sjms.jms.JmsObjectFactory;
import org.apache.camel.component.sjms.tx.DefaultTransactionCommitStrategy;
import org.apache.camel.component.sjms.tx.SessionTransactionSynchronization;
/**
* A Camel Producer that provides the InOnly Exchange pattern..
*/
public class InOnlyProducer extends SjmsProducer {
public InOnlyProducer(final Endpoint endpoint) {
super(endpoint);
}
/*
* @see org.apache.camel.component.sjms.SjmsProducer#doCreateProducerModel()
* @return
* @throws Exception
*/
@Override
public MessageProducerResources doCreateProducerModel() throws Exception {
MessageProducerResources answer;
Connection conn = getConnectionResource().borrowConnection();
try {
TransactionCommitStrategy commitStrategy = null;
if (isEndpointTransacted()) {
commitStrategy = getCommitStrategy() == null ? new DefaultTransactionCommitStrategy() : getCommitStrategy();
}
Session session = conn.createSession(isEndpointTransacted(), getAcknowledgeMode());
Destination destination = getEndpoint().getDestinationCreationStrategy().createDestination(session, getDestinationName(), isTopic());
MessageProducer messageProducer = JmsObjectFactory.createMessageProducer(session, destination, isPersistent(), getTtl());
answer = new MessageProducerResources(session, messageProducer, commitStrategy);
} catch (Exception e) {
log.error("Unable to create the MessageProducer", e);
throw e;
} finally {
getConnectionResource().returnConnection(conn);
}
return answer;
}
/*
* @see
* org.apache.camel.component.sjms.SjmsProducer#sendMessage(org.apache.camel.Exchange, org.apache.camel.AsyncCallback)
* @param exchange
* @param callback
* @throws Exception
*/
@Override
public void sendMessage(final Exchange exchange, final AsyncCallback callback, final MessageProducerResources producer) throws Exception {
try {
Collection<Message> messages = new ArrayList<Message>(1);
if (exchange.getIn().getBody() != null) {
if (exchange.getIn().getBody() instanceof List) {
Iterable<?> payload = (Iterable<?>) exchange.getIn().getBody();
for (final Object object : payload) {
Message message;
if (BatchMessage.class.isInstance(object)) {
BatchMessage<?> batchMessage = (BatchMessage<?>) object;
message = JmsMessageHelper.createMessage(producer.getSession(), batchMessage.getPayload(), batchMessage.getHeaders(), getSjmsEndpoint()
.getJmsKeyFormatStrategy(), getSjmsEndpoint().getCamelContext().getTypeConverter());
} else {
message = JmsMessageHelper.createMessage(producer.getSession(), object, exchange.getIn().getHeaders(),
getSjmsEndpoint().getJmsKeyFormatStrategy(), getSjmsEndpoint().getCamelContext().getTypeConverter());
}
messages.add(message);
}
} else {
Object payload = exchange.getIn().getBody();
Message message = JmsMessageHelper
.createMessage(producer.getSession(), payload, exchange.getIn().getHeaders(), getSjmsEndpoint().getJmsKeyFormatStrategy(),
getSjmsEndpoint().getCamelContext().getTypeConverter());
messages.add(message);
}
}
if (isEndpointTransacted()) {
exchange.getUnitOfWork().addSynchronization(new SessionTransactionSynchronization(producer.getSession(), producer.getCommitStrategy()));
}
for (final Message message : messages) {
producer.getMessageProducer().send(message);
}
} catch (Exception e) {
exchange.setException(new Exception("Unable to complete sending the message: ", e));
} finally {
if (producer != null) {
getProducers().returnObject(producer);
}
callback.done(isSynchronous());
}
}
}