QPID-1807 : Add 0.5-fix broker and update SlowMessageStore to use MessageStores rather than TransactionLogs

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@764850 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 139 insertions, 0 deletions

diff --git a/java/broker/src/main/java/org/apache/qpid/server/exchange/DefaultExchangeRegistry.java b/java/broker/src/main/java/org/apache/qpid/server/exchange/DefaultExchangeRegistry.java
new file mode 100644
index 0000000000..0ab8208d88
--- /dev/null
+++ b/java/broker/src/main/java/org/apache/qpid/server/exchange/DefaultExchangeRegistry.java
@@ -0,0 +1,139 @@
+/*
+ *
+ * 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.exchange;
+
+import org.apache.log4j.Logger;
+import org.apache.qpid.AMQException;
+import org.apache.qpid.framing.AMQShortString;
+import org.apache.qpid.server.protocol.ExchangeInitialiser;
+import org.apache.qpid.server.queue.AMQMessage;
+import org.apache.qpid.server.queue.IncomingMessage;
+import org.apache.qpid.server.store.MessageStore;
+import org.apache.qpid.server.virtualhost.VirtualHost;
+
+import java.util.Collection;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+public class DefaultExchangeRegistry implements ExchangeRegistry
+{
+    private static final Logger _log = Logger.getLogger(DefaultExchangeRegistry.class);
+
+    /**
+     * Maps from exchange name to exchange instance
+     */
+    private ConcurrentMap<AMQShortString, Exchange> _exchangeMap = new ConcurrentHashMap<AMQShortString, Exchange>();
+
+    private Exchange _defaultExchange;
+    private VirtualHost _host;
+
+    public DefaultExchangeRegistry(VirtualHost host)
+    {
+        //create 'standard' exchanges:
+        _host = host;
+
+    }
+
+    public void initialise() throws AMQException
+    {
+        new ExchangeInitialiser().initialise(_host.getExchangeFactory(), this);
+    }
+
+    public MessageStore getMessageStore()
+    {
+        return _host.getMessageStore();
+    }
+
+    public void registerExchange(Exchange exchange) throws AMQException
+    {
+        _exchangeMap.put(exchange.getName(), exchange);
+        if (exchange.isDurable())
+        {
+            getMessageStore().createExchange(exchange);
+        }
+    }
+
+    public void setDefaultExchange(Exchange exchange)
+    {
+        _defaultExchange = exchange;
+    }
+
+    public Exchange getDefaultExchange()
+    {
+        return _defaultExchange;
+    }
+
+    public Collection<AMQShortString> getExchangeNames()
+    {
+        return _exchangeMap.keySet();
+    }
+
+    public void unregisterExchange(AMQShortString name, boolean inUse) throws AMQException
+    {
+        // TODO: check inUse argument
+        Exchange e = _exchangeMap.remove(name);
+        if (e != null)
+        {
+            if (e.isDurable())
+            {
+                getMessageStore().removeExchange(e);
+            }
+            e.close();
+        }
+        else
+        {
+            throw new AMQException("Unknown exchange " + name);
+        }
+    }
+
+    public Exchange getExchange(AMQShortString name)
+    {
+        if ((name == null) || name.length() == 0)
+        {
+            return getDefaultExchange();
+        }
+        else
+        {
+            return _exchangeMap.get(name);
+        }
+
+    }
+
+    /**
+     * Routes content through exchanges, delivering it to 1 or more queues.
+     * @param payload
+     * @throws AMQException if something goes wrong delivering data
+     */
+    public void routeContent(IncomingMessage payload) throws AMQException
+    {
+        final AMQShortString exchange = payload.getExchange();
+        final Exchange exch = getExchange(exchange);
+        // there is a small window of opportunity for the exchange to be deleted in between
+        // the BasicPublish being received (where the exchange is validated) and the final
+        // content body being received (which triggers this method)
+        // TODO: check where the exchange is validated
+        if (exch == null)
+        {
+            throw new AMQException("Exchange '" + exchange + "' does not exist");
+        }
+        exch.route(payload);
+    }
+}