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/*
* 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.qpid.amqp_1_0.jms.impl;
import org.apache.qpid.amqp_1_0.client.AcknowledgeMode;
import org.apache.qpid.amqp_1_0.client.Receiver;
import org.apache.qpid.amqp_1_0.jms.Topic;
import org.apache.qpid.amqp_1_0.jms.TopicSubscriber;
import org.apache.qpid.amqp_1_0.type.AmqpErrorException;
import org.apache.qpid.amqp_1_0.type.Symbol;
import org.apache.qpid.amqp_1_0.type.messaging.Filter;
import org.apache.qpid.amqp_1_0.type.messaging.StdDistMode;
import org.apache.qpid.amqp_1_0.type.transport.*;
import javax.jms.*;
import java.util.Map;
public class TopicSubscriberImpl extends MessageConsumerImpl implements TopicSubscriber
{
TopicSubscriberImpl(String name,
boolean durable,
final Topic destination,
final SessionImpl session,
final String selector,
final boolean noLocal)
throws JMSException
{
super(destination, session, selector, noLocal, name, durable);
setTopicSubscriber(true);
}
TopicSubscriberImpl(final Topic destination,
final SessionImpl session,
final String selector,
final boolean noLocal)
throws JMSException
{
super(destination, session, selector, noLocal);
setTopicSubscriber(true);
}
public TopicImpl getTopic() throws JMSException
{
return (TopicImpl) getDestination();
}
protected Receiver createClientReceiver() throws JMSException
{
try
{
String address = getDestination().getAddress();
Receiver receiver = getSession().getClientSession().createReceiver(address,
StdDistMode.COPY, AcknowledgeMode.ALO,
getLinkName(), isDurable(), getFilters(),
null);
String actualAddress = receiver.getAddress();
@SuppressWarnings("unchecked")
Map<Symbol, Filter> actualFilters = (Map<Symbol, Filter>) receiver.getFilter();
if(!address.equals(actualAddress) || !filtersEqual(getFilters(), actualFilters))
{
receiver.close();
receiver = getSession().getClientSession().createReceiver(address,
StdDistMode.COPY, AcknowledgeMode.ALO,
getLinkName(), isDurable(), getFilters(),
null);
}
return receiver;
}
catch (AmqpErrorException e)
{
org.apache.qpid.amqp_1_0.type.transport.Error error = e.getError();
if(AmqpError.INVALID_FIELD.equals(error.getCondition()))
{
throw new InvalidSelectorException(e.getMessage());
}
else
{
throw new JMSException(e.getMessage(), error.getCondition().getValue().toString());
}
}
}
private boolean filtersEqual(Map<Symbol, Filter> filters, Map<Symbol, Filter> actualFilters)
{
if(filters == null || filters.isEmpty())
{
return actualFilters == null || actualFilters.isEmpty();
}
else
{
return actualFilters != null && filters.equals(actualFilters);
}
}
protected void closeUnderlyingReceiver(Receiver receiver)
{
receiver.detach();
}
}
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