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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.messaging.address.amqp_0_10;
import java.util.Map;
import org.apache.qpid.AMQException;
import org.apache.qpid.messaging.Address;
import org.apache.qpid.messaging.QpidDestination.CheckMode;
import org.apache.qpid.messaging.Session;
import org.apache.qpid.messaging.SubscriptionSettings;
import org.apache.qpid.messaging.address.AddressException;
import org.apache.qpid.messaging.address.AddressHelper;
import org.apache.qpid.messaging.address.Link;
import org.apache.qpid.messaging.address.Link.Reliability;
import org.apache.qpid.messaging.amqp_0_10.Session_0_10;
import org.apache.qpid.messaging.QpidQueue;
import org.apache.qpid.protocol.AMQConstant;
import org.apache.qpid.transport.ExecutionErrorCode;
import org.apache.qpid.transport.MessageAcceptMode;
import org.apache.qpid.transport.MessageAcquireMode;
import org.apache.qpid.transport.Option;
import org.apache.qpid.transport.QueueQueryResult;
import org.apache.qpid.transport.SessionException;
public class QpidQueue_0_10 extends QpidQueue
{
private Address address;
private QueueNode queue;
private Link_0_10 link;
public QpidQueue_0_10(Address address,QueueNode queue,Link_0_10 link) throws Exception
{
this.address = address;
this.queue = queue;
this.link = link;
queueName = address.getName();
}
@Override
public void checkCreate(Session session,CheckMode mode) throws Exception
{
org.apache.qpid.transport.Session ssn = ((Session_0_10)session).getProtocolSession();
if (AddressHelper.isAllowed(queue.getCreatePolicy(), mode))
{
ssn.queueDeclare(queueName,
queue.getAltExchange(),
queue.getDeclareArgs(),
queue.isAutoDelete() ? Option.AUTO_DELETE : Option.NONE,
queue.isDurable() ? Option.DURABLE : Option.NONE,
queue.isExclusive() ? Option.EXCLUSIVE : Option.NONE);
if (queue.getBindings().size() > 0)
{
for (Binding binding: queue.getBindings())
{
String queue = binding.getQueue() == null?
queueName: binding.getQueue();
String exchange = binding.getExchange() == null ?
"anq.topic" :
binding.getExchange();
ssn.exchangeBind(queue,
exchange,
binding.getBindingKey(),
binding.getArgs());
}
}
}
else
{
try
{
ssn.queueDeclare(queueName, null, null,Option.PASSIVE);
ssn.sync();
}
catch(SessionException e)
{
if (e.getException() != null
&& e.getException().getErrorCode() == ExecutionErrorCode.NOT_FOUND)
{
throw new AddressException("The Queue '" + queueName +"' does not exist",e);
}
else
{
throw e;
}
}
}
}
@Override
public void checkAssert(Session session,CheckMode mode) throws Exception
{
org.apache.qpid.transport.Session ssn = ((Session_0_10)session).getProtocolSession();
if (AddressHelper.isAllowed(queue.getAssertPolicy(), mode))
{
boolean match = false;
try
{
QueueQueryResult result = ssn.queueQuery(queueName, Option.NONE).get();
match = queueName.equals(result.getQueue()) &&
(result.getDurable() == queue.isDurable()) &&
(result.getAutoDelete() == queue.isAutoDelete()) &&
(result.getExclusive() == queue.isExclusive()) &&
(queue.matchProps(result.getArguments()));
}
catch(SessionException e)
{
if (e.getException().getErrorCode() == ExecutionErrorCode.RESOURCE_DELETED)
{
match = false;
}
else
{
throw new AMQException(AMQConstant.getConstant(e.getException().getErrorCode().getValue()),
"Error querying queue",e);
}
}
if (!match)
{
throw new AddressException("The queue described in the address does not exist on the broker");
}
}
}
@Override
public void checkDelete(Session session,CheckMode mode) throws Exception
{
org.apache.qpid.transport.Session ssn = ((Session_0_10)session).getProtocolSession();
if (AddressHelper.isAllowed(queue.getDeletePolicy(), mode))
{
ssn.queueDelete(queueName, Option.NONE);
ssn.sync();
}
}
@Override
public void createSubscription(Session session,SubscriptionSettings settings) throws Exception
{
org.apache.qpid.transport.Session ssn = ((Session_0_10)session).getProtocolSession();
if (link.getQueueBindings().size() > 0)
{
for (Binding binding: link.getQueueBindings())
{
String queue = binding.getQueue() == null?
queueName: binding.getQueue();
String exchange = binding.getExchange() == null ?
"amq.topic" :
binding.getExchange();
ssn.exchangeBind(queue,
exchange,
binding.getBindingKey(),
binding.getArgs());
}
}
SubscriptionSettings_0_10 settings_0_10 = (SubscriptionSettings_0_10)settings;
Map<String,Object> arguments = settings_0_10.getArgs();
arguments.putAll((Map<? extends String, ? extends Object>)link.getSubscription().getArgs());
if (link.getReliability() == Reliability.UNRELIABLE ||
link.getReliability() == Reliability.AT_MOST_ONCE)
{
settings_0_10.setAcceptMode(MessageAcceptMode.NONE);
}
// for queues subscriptions are non exclusive by default.
boolean exclusive =
(link.getSubscription().isExclusive() == null) ? false : link.getSubscription().isExclusive();
ssn.messageSubscribe(queueName,
settings_0_10.getSubscriptionTag(),
settings_0_10.getAcceptMode(),
settings_0_10.getAccquireMode(),
null, // resume id
0, // resume ttl
arguments,
exclusive ? Option.EXCLUSIVE : Option.NONE);
}
@Override
public void deleteSubscription(Session session) throws Exception
{
org.apache.qpid.transport.Session ssn = ((Session_0_10)session).getProtocolSession();
if (link.getQueueBindings().size() > 0)
{
for (Binding binding: link.getQueueBindings())
{
String queue = binding.getQueue() == null?
queueName: binding.getQueue();
String exchange = binding.getExchange() == null ?
"amq.topic" :
binding.getExchange();
ssn.exchangeUnbind(queue,
exchange,
binding.getBindingKey(),
Option.NONE);
}
}
// ideally we should cancel the subscription here
}
public String getSubscriptionQueue()
{
return queueName;
}
public long getConsumerCapacity()
{
return link.getConsumerCapacity();
}
public long getProducerCapacity()
{
return link.getProducerCapacity();
}
public String toString()
{
return address.toString();
}
}
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