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*
* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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package org.apache.qpid.server.protocol.v0_8.handler;
import org.apache.log4j.Logger;
import org.apache.qpid.AMQException;
import org.apache.qpid.exchange.ExchangeDefaults;
import org.apache.qpid.framing.AMQShortString;
import org.apache.qpid.framing.BasicPublishBody;
import org.apache.qpid.framing.abstraction.MessagePublishInfo;
import org.apache.qpid.protocol.AMQConstant;
import org.apache.qpid.server.protocol.v0_8.AMQChannel;
import org.apache.qpid.server.exchange.Exchange;
import org.apache.qpid.server.protocol.v0_8.AMQProtocolSession;
import org.apache.qpid.server.protocol.v0_8.state.AMQStateManager;
import org.apache.qpid.server.protocol.v0_8.state.StateAwareMethodListener;
import org.apache.qpid.server.virtualhost.VirtualHost;
public class BasicPublishMethodHandler implements StateAwareMethodListener<BasicPublishBody>
{
private static final Logger _logger = Logger.getLogger(BasicPublishMethodHandler.class);
private static final BasicPublishMethodHandler _instance = new BasicPublishMethodHandler();
public static BasicPublishMethodHandler getInstance()
{
return _instance;
}
private BasicPublishMethodHandler()
{
}
public void methodReceived(AMQStateManager stateManager, BasicPublishBody body, int channelId) throws AMQException
{
AMQProtocolSession session = stateManager.getProtocolSession();
if (_logger.isDebugEnabled())
{
_logger.debug("Publish received on channel " + channelId);
}
AMQShortString exchangeName = body.getExchange();
// TODO: check the delivery tag field details - is it unique across the broker or per subscriber?
if (exchangeName == null)
{
exchangeName = AMQShortString.valueOf(ExchangeDefaults.DEFAULT_EXCHANGE_NAME);
}
VirtualHost vHost = session.getVirtualHost();
Exchange exch = vHost.getExchange(exchangeName.toString());
// if the exchange does not exist we raise a channel exception
if (exch == null)
{
throw body.getChannelException(AMQConstant.NOT_FOUND, "Unknown exchange name");
}
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 = session.getChannel(channelId);
if (channel == null)
{
throw body.getChannelNotFoundException(channelId);
}
MessagePublishInfo info = session.getMethodRegistry().getProtocolVersionMethodConverter().convertToInfo(body);
info.setExchange(exchangeName);
channel.setPublishFrame(info, exch);
}
}
}