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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.client;
import java.net.URISyntaxException;
import javax.jms.InvalidDestinationException;
import javax.jms.JMSException;
import javax.jms.Topic;
import org.apache.qpid.exchange.ExchangeDefaults;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.messaging.Address;
import org.apache.qpid.url.BindingURL;
public class AMQTopic extends AMQDestination implements Topic
{
public AMQTopic(String address) throws URISyntaxException
{
super(address);
}
public AMQTopic(Address address) throws Exception
{
super(address);
}
/**
* Constructor for use in creating a topic using a BindingURL.
*
* @param binding The binding url object.
*/
public AMQTopic(BindingURL binding)
{
super(binding);
}
public AMQTopic(AMQShortString exchange, AMQShortString routingKey, AMQShortString queueName)
{
super(exchange, ExchangeDefaults.TOPIC_EXCHANGE_CLASS, routingKey, true, true, queueName, false);
}
public AMQTopic(AMQShortString exchange, AMQShortString routingKey, AMQShortString queueName,AMQShortString[] bindingKeys)
{
super(exchange, ExchangeDefaults.TOPIC_EXCHANGE_CLASS, routingKey, true, true, queueName, false,bindingKeys);
}
public AMQTopic(AMQConnection conn, String routingKey)
{
this(conn.getDefaultTopicExchangeName(), new AMQShortString(routingKey));
}
public AMQTopic(AMQShortString exchangeName, String routingKey)
{
this(exchangeName, new AMQShortString(routingKey));
}
public AMQTopic(AMQShortString exchangeName, AMQShortString routingKey)
{
this(exchangeName, routingKey, null);
}
public AMQTopic(AMQShortString exchangeName, AMQShortString name, boolean isAutoDelete, AMQShortString queueName, boolean isDurable)
{
super(exchangeName, ExchangeDefaults.TOPIC_EXCHANGE_CLASS, name, true, isAutoDelete, queueName, isDurable);
}
protected AMQTopic(AMQShortString exchangeName, AMQShortString exchangeClass, AMQShortString routingKey, boolean isExclusive,
boolean isAutoDelete, AMQShortString queueName, boolean isDurable)
{
super(exchangeName, exchangeClass, routingKey, isExclusive, isAutoDelete, queueName, isDurable );
}
protected AMQTopic(AMQShortString exchangeName, AMQShortString exchangeClass, AMQShortString routingKey, boolean isExclusive,
boolean isAutoDelete, AMQShortString queueName, boolean isDurable,AMQShortString[] bindingKeys)
{
super(exchangeName, exchangeClass, routingKey, isExclusive, isAutoDelete, queueName, isDurable,bindingKeys);
}
public static AMQTopic createDurableTopic(Topic topic, String subscriptionName, AMQConnection connection)
throws JMSException
{
if (topic instanceof AMQDestination && topic instanceof javax.jms.Topic)
{
AMQDestination qpidTopic = (AMQDestination)topic;
if (qpidTopic.getDestSyntax() == DestSyntax.ADDR)
{
try
{
AMQTopic t = new AMQTopic(qpidTopic.getAddress());
AMQShortString queueName = getDurableTopicQueueName(subscriptionName, connection);
// link is never null if dest was created using an address string.
t.getLink().setName(queueName.asString());
t.getSourceNode().setAutoDelete(false);
t.getSourceNode().setDurable(true);
// The legacy fields are also populated just in case.
t.setQueueName(queueName);
t.setAutoDelete(false);
t.setDurable(true);
return t;
}
catch(Exception e)
{
JMSException ex = new JMSException("Error creating durable topic");
ex.initCause(e);
ex.setLinkedException(e);
throw ex;
}
}
else
{
return new AMQTopic(qpidTopic.getExchangeName(), qpidTopic.getRoutingKey(), false,
getDurableTopicQueueName(subscriptionName, connection),
true);
}
}
else
{
throw new InvalidDestinationException("The destination object used is not from this provider or of type javax.jms.Topic");
}
}
public static AMQShortString getDurableTopicQueueName(String subscriptionName, AMQConnection connection) throws JMSException
{
return new AMQShortString(connection.getClientID() + ":" + subscriptionName);
}
public String getTopicName() throws JMSException
{
if (getRoutingKey() != null)
{
return getRoutingKey().asString();
}
else if (getSubject() != null)
{
return getSubject();
}
else
{
return null;
}
}
@Override
public AMQShortString getExchangeName()
{
if (super.getExchangeName() == null && super.getAddressName() != null)
{
return new AMQShortString(super.getAddressName());
}
else
{
return _exchangeName;
}
}
public AMQShortString getRoutingKey()
{
if (super.getRoutingKey() != null)
{
return super.getRoutingKey();
}
else if (getSubject() != null)
{
return new AMQShortString(getSubject());
}
else
{
setRoutingKey(new AMQShortString(""));
setSubject("");
return super.getRoutingKey();
}
}
public boolean isNameRequired()
{
return !isDurable();
}
/**
* Override since the queue is always private and we must ensure it remains null. If not,
* reuse of the topic when registering consumers will make all consumers listen on the same (private) queue rather
* than getting their own (private) queue.
* <p/>
* This is relatively nasty but it is difficult to come up with a more elegant solution, given
* the requirement in the case on AMQQueue and possibly other AMQDestination subclasses to
* use the underlying queue name even where it is server generated.
*/
public void setQueueName(String queueName)
{
}
public boolean equals(Object o)
{
return (o instanceof AMQTopic)
&& ((AMQTopic)o).getExchangeName().equals(getExchangeName())
&& ((AMQTopic)o).getRoutingKey().equals(getRoutingKey());
}
public int hashCode()
{
return getExchangeName().hashCode() + getRoutingKey().hashCode();
}
}
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