1 files changed, 108 insertions, 0 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/handler/ExchangeDeclareHandler.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/handler/ExchangeDeclareHandler.java
new file mode 100644
index 0000000000..98a0d33487
--- /dev/null
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/handler/ExchangeDeclareHandler.java
@@ -0,0 +1,108 @@
+/*
+ *
+ * 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.log4j.Logger;
+import org.apache.qpid.AMQConnectionException;
+import org.apache.qpid.AMQException;
+import org.apache.qpid.AMQUnknownExchangeType;
+import org.apache.qpid.framing.*;
+import org.apache.qpid.protocol.AMQConstant;
+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.AMQProtocolSession;
+import org.apache.qpid.server.state.AMQStateManager;
+import org.apache.qpid.server.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();
+
+        if (_logger.isDebugEnabled())
+        {
+            _logger.debug("Request to declare exchange of type " + body.getType() + " with name " + body.getExchange());
+        }
+        
+        synchronized(exchangeRegistry)
+        {
+            Exchange exchange = exchangeRegistry.getExchange(body.getExchange());
+
+            if (exchange == null)
+            {
+                if(body.getPassive() && ((body.getType() == null) || body.getType().length() ==0))
+                {
+                    throw body.getChannelException(AMQConstant.NOT_FOUND, "Unknown exchange: " + body.getExchange());
+                }
+                else
+                {
+                    try
+                    {
+                        exchange = exchangeFactory.createExchange(body.getExchange() == null ? null : body.getExchange().intern(),
+                                                                  body.getType() == null ? null : body.getType().intern(),
+                                                                  body.getDurable(),
+                                                                  body.getPassive(), body.getTicket());
+                        exchangeRegistry.registerExchange(exchange);
+
+                        if (exchange.isDurable())
+                        {
+                            virtualHost.getDurableConfigurationStore().createExchange(exchange);
+                        }
+                    }
+                    catch(AMQUnknownExchangeType e)
+                    {
+                        throw body.getConnectionException(AMQConstant.COMMAND_INVALID, "Unknown exchange: " + body.getExchange(),e);
+                    }
+                }
+            }
+            else if (!exchange.getTypeShortString().equals(body.getType()))
+            {
+
+                throw new AMQConnectionException(AMQConstant.NOT_ALLOWED, "Attempt to redeclare exchange: " + body.getExchange() + " 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();
+            session.writeFrame(responseBody.generateFrame(channelId));
+        }
+    }
+}