diff options
Diffstat (limited to 'qpid/java/broker/src/main/java/org/apache/qpid/server/protocol/v0_8/handler/ExchangeDeclareHandler.java')
-rw-r--r-- | qpid/java/broker/src/main/java/org/apache/qpid/server/protocol/v0_8/handler/ExchangeDeclareHandler.java | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/protocol/v0_8/handler/ExchangeDeclareHandler.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/protocol/v0_8/handler/ExchangeDeclareHandler.java new file mode 100644 index 0000000000..c421a40f0a --- /dev/null +++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/protocol/v0_8/handler/ExchangeDeclareHandler.java @@ -0,0 +1,133 @@ +/* + * + * 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.protocol.v0_8.handler; + +import org.apache.log4j.Logger; + +import org.apache.qpid.AMQConnectionException; +import org.apache.qpid.AMQException; +import org.apache.qpid.AMQUnknownExchangeType; +import org.apache.qpid.framing.AMQMethodBody; +import org.apache.qpid.framing.AMQShortString; +import org.apache.qpid.framing.ExchangeDeclareBody; +import org.apache.qpid.framing.MethodRegistry; +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.exchange.ExchangeFactory; +import org.apache.qpid.server.exchange.ExchangeRegistry; +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 ExchangeDeclareHandler implements StateAwareMethodListener<ExchangeDeclareBody> +{ + private static final Logger _logger = Logger.getLogger(ExchangeDeclareHandler.class); + + private static final ExchangeDeclareHandler _instance = new ExchangeDeclareHandler(); + + public static ExchangeDeclareHandler getInstance() + { + return _instance; + } + + private ExchangeDeclareHandler() + { + } + + public void methodReceived(AMQStateManager stateManager, ExchangeDeclareBody body, int channelId) throws AMQException + { + AMQProtocolSession session = stateManager.getProtocolSession(); + VirtualHost virtualHost = session.getVirtualHost(); + ExchangeRegistry exchangeRegistry = virtualHost.getExchangeRegistry(); + ExchangeFactory exchangeFactory = virtualHost.getExchangeFactory(); + final AMQChannel channel = session.getChannel(channelId); + if (channel == null) + { + throw body.getChannelNotFoundException(channelId); + } + + final AMQShortString exchangeName = body.getExchange(); + if (_logger.isDebugEnabled()) + { + _logger.debug("Request to declare exchange of type " + body.getType() + " with name " + exchangeName); + } + + synchronized(exchangeRegistry) + { + Exchange exchange = exchangeRegistry.getExchange(exchangeName); + + if (exchange == null) + { + if(body.getPassive() && ((body.getType() == null) || body.getType().length() ==0)) + { + throw body.getChannelException(AMQConstant.NOT_FOUND, "Unknown exchange: " + exchangeName); + } + else if(exchangeName.startsWith("amq.")) + { + throw body.getConnectionException(AMQConstant.NOT_ALLOWED, + "Attempt to declare exchange: " + exchangeName + + " which begins with reserved prefix 'amq.'."); + } + else if(exchangeName.startsWith("qpid.")) + { + throw body.getConnectionException(AMQConstant.NOT_ALLOWED, + "Attempt to declare exchange: " + exchangeName + + " which begins with reserved prefix 'qpid.'."); + } + else + { + try + { + exchange = exchangeFactory.createExchange(exchangeName == null ? null : exchangeName.intern(), + body.getType() == null ? null : body.getType().intern(), + body.getDurable(), + body.getAutoDelete(), body.getTicket()); + exchangeRegistry.registerExchange(exchange); + + if (exchange.isDurable()) + { + virtualHost.getMessageStore().createExchange(exchange); + } + } + catch(AMQUnknownExchangeType e) + { + throw body.getConnectionException(AMQConstant.COMMAND_INVALID, "Unknown exchange: " + exchangeName,e); + } + } + } + else if (!exchange.getTypeShortString().equals(body.getType()) && !((body.getType() == null || body.getType().length() ==0) && body.getPassive())) + { + + throw new AMQConnectionException(AMQConstant.NOT_ALLOWED, "Attempt to redeclare exchange: " + + exchangeName + " of type " + exchange.getTypeShortString() + " to " + body.getType() +".",body.getClazz(), body.getMethod(),body.getMajor(),body.getMinor(),null); + } + } + if(!body.getNowait()) + { + MethodRegistry methodRegistry = session.getMethodRegistry(); + AMQMethodBody responseBody = methodRegistry.createExchangeDeclareOkBody(); + channel.sync(); + session.writeFrame(responseBody.generateFrame(channelId)); + } + } +} |