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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.server.handler;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.AMQFrame;
import org.apache.qpid.framing.BasicPublishBody;
import org.apache.qpid.framing.ChannelCloseBody;
import org.apache.qpid.server.AMQChannel;
import org.apache.qpid.server.exchange.Exchange;
import org.apache.qpid.server.exchange.ExchangeRegistry;
import org.apache.qpid.server.protocol.AMQMethodEvent;
import org.apache.qpid.server.protocol.AMQProtocolSession;
import org.apache.qpid.server.queue.QueueRegistry;
import org.apache.qpid.server.state.AMQStateManager;
import org.apache.qpid.server.state.StateAwareMethodListener;
public class BasicPublishMethodHandler implements StateAwareMethodListener<BasicPublishBody>
{
private static final BasicPublishMethodHandler _instance = new BasicPublishMethodHandler();
public static BasicPublishMethodHandler getInstance()
{
return _instance;
}
private BasicPublishMethodHandler()
{
}
public void methodReceived(AMQStateManager stateManager, QueueRegistry queueRegistry,
ExchangeRegistry exchangeRegistry, AMQProtocolSession protocolSession,
AMQMethodEvent<BasicPublishBody> evt) throws AMQException
{
final BasicPublishBody body = evt.getMethod();
// TODO: check the delivery tag field details - is it unique across the broker or per subscriber?
if (body.exchange == null)
{
body.exchange = "amq.direct";
}
Exchange e = exchangeRegistry.getExchange(body.exchange);
// if the exchange does not exist we raise a channel exception
if (e == null)
{
protocolSession.closeChannel(evt.getChannelId());
// TODO: modify code gen to make getClazz and getMethod public methods rather than protected
// then we can remove the hardcoded 0,0
AMQFrame cf = ChannelCloseBody.createAMQFrame(evt.getChannelId(), 500, "Unknown exchange name", 0, 0);
protocolSession.writeFrame(cf);
}
else
{
// The partially populated BasicDeliver frame plus the received route body
// is stored in the channel. Once the final body frame has been received
// it is routed to the exchange.
AMQChannel channel = protocolSession.getChannel(evt.getChannelId());
channel.setPublishFrame(body, protocolSession);
}
}
}
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