1 files changed, 196 insertions, 0 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/store/MemoryMessageStore.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/store/MemoryMessageStore.java
new file mode 100644
index 0000000000..d008d42fa0
--- /dev/null
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/store/MemoryMessageStore.java
@@ -0,0 +1,196 @@
+/*
+ *
+ * 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.store;
+
+import java.util.List;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicLong;
+
+import org.apache.commons.configuration.Configuration;
+import org.apache.log4j.Logger;
+import org.apache.qpid.AMQException;
+import org.apache.qpid.AMQStoreException;
+import org.apache.qpid.framing.AMQShortString;
+import org.apache.qpid.framing.FieldTable;
+import org.apache.qpid.server.exchange.Exchange;
+import org.apache.qpid.server.logging.LogSubject;
+import org.apache.qpid.server.logging.actors.CurrentActor;
+import org.apache.qpid.server.logging.messages.ConfigStoreMessages;
+import org.apache.qpid.server.logging.messages.MessageStoreMessages;
+import org.apache.qpid.server.queue.AMQQueue;
+
+/** A simple message store that stores the messages in a threadsafe structure in memory. */
+public class MemoryMessageStore implements MessageStore
+{
+    private static final Logger _log = Logger.getLogger(MemoryMessageStore.class);
+
+    private static final int DEFAULT_HASHTABLE_CAPACITY = 50000;
+
+    private static final String HASHTABLE_CAPACITY_CONFIG = "hashtable-capacity";
+
+
+    private final AtomicLong _messageId = new AtomicLong(1);
+    private AtomicBoolean _closed = new AtomicBoolean(false);
+    private LogSubject _logSubject;
+
+    private static final Transaction IN_MEMORY_TRANSACTION = new Transaction()
+    {
+        public void enqueueMessage(TransactionLogResource  queue, Long messageId) throws AMQStoreException
+        {
+        }
+
+        public void dequeueMessage(TransactionLogResource  queue, Long messageId) throws AMQStoreException
+        {
+        }
+
+        public void commitTran() throws AMQStoreException
+        {
+        }
+
+        public StoreFuture commitTranAsync() throws AMQStoreException
+        {
+            return IMMEDIATE_FUTURE;
+        }
+
+        public void abortTran() throws AMQStoreException
+        {
+        }
+
+    };
+
+    public void configureConfigStore(String name, ConfigurationRecoveryHandler handler, Configuration configuration, LogSubject logSubject) throws Exception
+    {
+        _logSubject = logSubject;
+        CurrentActor.get().message(_logSubject, ConfigStoreMessages.CREATED(this.getClass().getName()));
+
+
+    }
+
+    public void configureMessageStore(String name,
+                                      MessageStoreRecoveryHandler recoveryHandler,
+                                      Configuration config,
+                                      LogSubject logSubject) throws Exception
+    {
+        if(_logSubject == null)
+        {
+            _logSubject = logSubject;
+        }
+        int hashtableCapacity = config.getInt(name + "." + HASHTABLE_CAPACITY_CONFIG, DEFAULT_HASHTABLE_CAPACITY);
+        _log.info("Using capacity " + hashtableCapacity + " for hash tables");
+        CurrentActor.get().message(_logSubject, MessageStoreMessages.CREATED(this.getClass().getName()));
+    }
+
+    public void close() throws Exception
+    {
+        _closed.getAndSet(true);
+        CurrentActor.get().message(_logSubject,MessageStoreMessages.CLOSED());
+
+    }
+
+    public StoredMessage addMessage(StorableMessageMetaData metaData)
+    {
+        final long id = _messageId.getAndIncrement();
+        StoredMemoryMessage message = new StoredMemoryMessage(id, metaData);
+
+        return message;
+    }
+
+
+    public void createExchange(Exchange exchange) throws AMQStoreException
+    {
+
+    }
+
+    public void removeExchange(Exchange exchange) throws AMQStoreException
+    {
+
+    }
+
+    public void bindQueue(Exchange exchange, AMQShortString routingKey, AMQQueue queue, FieldTable args) throws AMQStoreException
+    {
+
+    }
+
+    public void unbindQueue(Exchange exchange, AMQShortString routingKey, AMQQueue queue, FieldTable args) throws AMQStoreException
+    {
+
+    }
+
+
+    public void createQueue(AMQQueue queue) throws AMQStoreException
+    {
+        // Not requred to do anything
+    }
+
+    public void createQueue(AMQQueue queue, FieldTable arguments) throws AMQStoreException
+    {
+        // Not required to do anything
+    }
+
+    public void removeQueue(final AMQQueue queue) throws AMQStoreException
+    {
+        // Not required to do anything
+    }
+    
+    public void updateQueue(final AMQQueue queue) throws AMQStoreException
+    {
+        // Not required to do anything
+    }
+
+    public void configureTransactionLog(String name,
+                                        TransactionLogRecoveryHandler recoveryHandler,
+                                        Configuration storeConfiguration,
+                                        LogSubject logSubject) throws Exception
+    {
+        //To change body of implemented methods use File | Settings | File Templates.
+    }
+
+    public Transaction newTransaction()
+    {
+        return IN_MEMORY_TRANSACTION;
+    }
+
+
+    public List<AMQQueue> createQueues() throws AMQException
+    {
+        return null;
+    }
+
+    public Long getNewMessageId()
+    {
+        return _messageId.getAndIncrement();
+    }
+
+    public boolean isPersistent()
+    {
+        return false;
+    }
+
+    private void checkNotClosed() throws MessageStoreClosedException
+     {
+        if (_closed.get())
+        {
+            throw new MessageStoreClosedException();
+        }
+    }
+
+
+}