1 files changed, 289 insertions, 0 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/binding/BindingFactory.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/binding/BindingFactory.java
new file mode 100644
index 0000000000..400ce50bc4
--- /dev/null
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/binding/BindingFactory.java
@@ -0,0 +1,289 @@
+/*
+ *
+ * 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.binding;
+
+import java.util.Collections;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.apache.qpid.AMQException;
+import org.apache.qpid.AMQInternalException;
+import org.apache.qpid.AMQSecurityException;
+import org.apache.qpid.framing.AMQShortString;
+import org.apache.qpid.framing.FieldTable;
+import org.apache.qpid.server.configuration.BindingConfig;
+import org.apache.qpid.server.configuration.BindingConfigType;
+import org.apache.qpid.server.configuration.ConfigStore;
+import org.apache.qpid.server.configuration.ConfiguredObject;
+import org.apache.qpid.server.configuration.QueueConfiguration;
+import org.apache.qpid.server.configuration.plugins.ConfigurationPlugin;
+import org.apache.qpid.server.exchange.Exchange;
+import org.apache.qpid.server.logging.actors.CurrentActor;
+import org.apache.qpid.server.logging.messages.BindingMessages;
+import org.apache.qpid.server.logging.subjects.BindingLogSubject;
+import org.apache.qpid.server.queue.AMQQueue;
+import org.apache.qpid.server.store.DurableConfigurationStore;
+import org.apache.qpid.server.virtualhost.VirtualHost;
+
+public class BindingFactory
+{
+    private final VirtualHost _virtualHost;
+    private final DurableConfigurationStore.Source _configSource;
+    private final Exchange _defaultExchange;
+
+    private final ConcurrentHashMap<BindingImpl, BindingImpl> _bindings = new ConcurrentHashMap<BindingImpl, BindingImpl>();
+
+
+    public BindingFactory(final VirtualHost vhost)
+    {
+        this(vhost, vhost.getExchangeRegistry().getDefaultExchange());
+    }
+
+    public BindingFactory(final DurableConfigurationStore.Source configSource, final Exchange defaultExchange)
+    {
+        _configSource = configSource;
+        _defaultExchange = defaultExchange;
+        if (configSource instanceof VirtualHost)
+        {
+            _virtualHost = (VirtualHost) configSource;
+        }
+        else
+        {
+            _virtualHost = null;
+        }
+    }
+
+    public VirtualHost getVirtualHost()
+    {
+        return _virtualHost;
+    }
+
+
+
+    private final class BindingImpl extends Binding implements AMQQueue.Task, Exchange.Task, BindingConfig
+    {
+        private final BindingLogSubject _logSubject;
+        //TODO : persist creation time
+        private long _createTime = System.currentTimeMillis();
+
+        private BindingImpl(String bindingKey, final AMQQueue queue, final Exchange exchange, final Map<String, Object> arguments)
+        {
+            super(queue.getVirtualHost().getConfigStore().createId(), bindingKey, queue, exchange, arguments);
+            _logSubject = new BindingLogSubject(bindingKey,exchange,queue);
+
+        }
+
+
+        public void doTask(final AMQQueue queue) throws AMQException
+        {
+            removeBinding(this);
+        }
+
+        public void onClose(final Exchange exchange) throws AMQSecurityException, AMQInternalException
+        {
+            removeBinding(this);
+        }
+
+        void logCreation()
+        {
+            CurrentActor.get().message(_logSubject, BindingMessages.CREATED(String.valueOf(getArguments()), getArguments() != null && !getArguments().isEmpty()));
+        }
+
+        void logDestruction()
+        {
+            CurrentActor.get().message(_logSubject, BindingMessages.DELETED());
+        }
+
+        public String getOrigin()
+        {
+            return (String) getArguments().get("qpid.fed.origin");
+        }
+
+        public long getCreateTime()
+        {
+            return _createTime;
+        }
+
+        public BindingConfigType getConfigType()
+        {
+            return BindingConfigType.getInstance();
+        }
+
+        public ConfiguredObject getParent()
+        {
+            return _virtualHost;
+        }
+
+        public boolean isDurable()
+        {
+            return getQueue().isDurable() && getExchange().isDurable();
+        }
+
+    }
+
+
+
+    public boolean addBinding(String bindingKey, AMQQueue queue, Exchange exchange, Map<String, Object> arguments) throws AMQSecurityException, AMQInternalException 
+    {
+        return makeBinding(bindingKey, queue, exchange, arguments, false, false);
+    }
+
+
+    public boolean replaceBinding(final String bindingKey,
+                               final AMQQueue queue,
+                               final Exchange exchange,
+                               final Map<String, Object> arguments) throws AMQSecurityException, AMQInternalException
+    {
+        return makeBinding(bindingKey, queue, exchange, arguments, false, true);
+    }
+
+    private boolean makeBinding(String bindingKey, AMQQueue queue, Exchange exchange, Map<String, Object> arguments, boolean restore, boolean force) throws AMQSecurityException, AMQInternalException
+    {
+        assert queue != null;
+        if (bindingKey == null)
+        {
+            bindingKey = "";
+        }
+        if (exchange == null)
+        {
+            exchange = _defaultExchange;
+        }
+        if (arguments == null)
+        {
+            arguments = Collections.emptyMap();
+        }
+      
+        //Perform ACLs
+        if (!getVirtualHost().getSecurityManager().authoriseBind(exchange, queue, new AMQShortString(bindingKey)))
+        {
+            throw new AMQSecurityException("Permission denied: binding " + bindingKey);
+        }
+        
+        BindingImpl b = new BindingImpl(bindingKey,queue,exchange,arguments);
+        BindingImpl existingMapping = _bindings.putIfAbsent(b,b);
+        if (existingMapping == null || force)
+        {
+            if (existingMapping != null)
+            {
+                removeBinding(existingMapping);
+            }
+
+            if (b.isDurable() && !restore)
+            {
+                _configSource.getDurableConfigurationStore().bindQueue(exchange,new AMQShortString(bindingKey),queue,FieldTable.convertToFieldTable(arguments));
+            }
+
+            queue.addQueueDeleteTask(b);
+            exchange.addCloseTask(b);
+            queue.addBinding(b);
+            exchange.addBinding(b);
+            getConfigStore().addConfiguredObject(b);
+            b.logCreation();
+
+            return true;
+        }
+        else
+        {
+            return false;
+        }
+    }
+
+    private ConfigStore getConfigStore()
+    {
+        return getVirtualHost().getConfigStore();
+    }
+
+    public void restoreBinding(final String bindingKey, final AMQQueue queue, final Exchange exchange, final Map<String, Object> argumentMap) throws AMQSecurityException, AMQInternalException
+    {
+        makeBinding(bindingKey,queue,exchange,argumentMap,true, false);
+    }
+
+    public void removeBinding(final Binding b) throws AMQSecurityException, AMQInternalException
+    {
+        removeBinding(b.getBindingKey(), b.getQueue(), b.getExchange(), b.getArguments());
+    }
+
+
+    public Binding removeBinding(String bindingKey, AMQQueue queue, Exchange exchange, Map<String, Object> arguments) throws AMQSecurityException, AMQInternalException
+    {
+        assert queue != null;
+        if (bindingKey == null)
+        {
+            bindingKey = "";
+        }
+        if (exchange == null)
+        {
+            exchange = _defaultExchange;
+        }
+        if (arguments == null)
+        {
+            arguments = Collections.emptyMap();
+        }
+
+        // Check access
+        if (!getVirtualHost().getSecurityManager().authoriseUnbind(exchange, new AMQShortString(bindingKey), queue))
+        {
+            throw new AMQSecurityException("Permission denied: binding " + bindingKey);
+        }
+        
+        BindingImpl b = _bindings.remove(new BindingImpl(bindingKey,queue,exchange,arguments));
+
+        if (b != null)
+        {
+            exchange.removeBinding(b);
+            queue.removeBinding(b);
+            exchange.removeCloseTask(b);
+            queue.removeQueueDeleteTask(b);
+
+            if (b.isDurable())
+            {
+                _configSource.getDurableConfigurationStore().unbindQueue(exchange,
+                                         new AMQShortString(bindingKey),
+                                         queue,
+                                         FieldTable.convertToFieldTable(arguments));
+            }
+            b.logDestruction();
+            getConfigStore().removeConfiguredObject(b);
+        }
+
+        return b;
+    }
+
+    public Binding getBinding(String bindingKey, AMQQueue queue, Exchange exchange, Map<String, Object> arguments)
+    {
+        assert queue != null;
+        if(bindingKey == null)
+        {
+            bindingKey = "";
+        }
+        if(exchange == null)
+        {
+            exchange = _defaultExchange;
+        }
+        if(arguments == null)
+        {
+            arguments = Collections.emptyMap();
+        }
+
+        BindingImpl b = new BindingImpl(bindingKey,queue,exchange,arguments);
+        return _bindings.get(b);
+    }
+}