1 files changed, 180 insertions, 0 deletions
diff --git a/java/systests/src/main/java/org/apache/qpid/server/store/QuotaMessageStore.java b/java/systests/src/main/java/org/apache/qpid/server/store/QuotaMessageStore.java
new file mode 100644
index 0000000000..07965cfa95
--- /dev/null
+++ b/java/systests/src/main/java/org/apache/qpid/server/store/QuotaMessageStore.java
@@ -0,0 +1,180 @@
+/*
+ *
+ * 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.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicLong;
+
+import org.apache.commons.configuration.Configuration;
+import org.apache.qpid.AMQStoreException;
+import org.apache.qpid.server.message.EnqueableMessage;
+import org.apache.qpid.server.message.MessageContentSource;
+
+public class QuotaMessageStore extends NullMessageStore
+{
+    private final AtomicLong _messageId = new AtomicLong(1);
+    private final AtomicBoolean _closed = new AtomicBoolean(false);
+
+    private long _totalStoreSize;;
+    private boolean _limitBusted;
+    private long _persistentSizeLowThreshold;
+    private long _persistentSizeHighThreshold;
+
+    private final StateManager _stateManager;
+    private final EventManager _eventManager = new EventManager();
+
+    public QuotaMessageStore()
+    {
+        _stateManager = new StateManager(_eventManager);
+    }
+
+    @Override
+    public void configureConfigStore(String name, ConfigurationRecoveryHandler recoveryHandler, Configuration config)
+            throws Exception
+    {
+        _persistentSizeHighThreshold = config.getLong(MessageStoreConstants.OVERFULL_SIZE_PROPERTY, Long.MAX_VALUE);
+        _persistentSizeLowThreshold = config.getLong(MessageStoreConstants.UNDERFULL_SIZE_PROPERTY,
+                _persistentSizeHighThreshold);
+        if (_persistentSizeLowThreshold > _persistentSizeHighThreshold || _persistentSizeLowThreshold < 0l)
+        {
+            _persistentSizeLowThreshold = _persistentSizeHighThreshold;
+        }
+        _stateManager.attainState(State.INITIALISING);
+    }
+
+    @Override
+    public void configureMessageStore(String name, MessageStoreRecoveryHandler recoveryHandler,
+            TransactionLogRecoveryHandler tlogRecoveryHandler, Configuration config) throws Exception
+    {
+        _stateManager.attainState(State.INITIALISED);
+    }
+
+    @Override
+    public void activate() throws Exception
+    {
+        _stateManager.attainState(State.ACTIVATING);
+        _stateManager.attainState(State.ACTIVE);
+    }
+
+    @SuppressWarnings("unchecked")
+    @Override
+    public StoredMessage<StorableMessageMetaData> addMessage(StorableMessageMetaData metaData)
+    {
+        final long id = _messageId.getAndIncrement();
+        return new StoredMemoryMessage(id, metaData);
+    }
+
+    @Override
+    public Transaction newTransaction()
+    {
+        return new Transaction()
+        {
+            private AtomicLong _storeSizeIncrease = new AtomicLong();
+
+            @Override
+            public StoreFuture commitTranAsync() throws AMQStoreException
+            {
+                QuotaMessageStore.this.storedSizeChange(_storeSizeIncrease.intValue());
+                return StoreFuture.IMMEDIATE_FUTURE;
+            }
+
+            @Override
+            public void enqueueMessage(TransactionLogResource queue, EnqueableMessage message) throws AMQStoreException
+            {
+                _storeSizeIncrease.addAndGet(((MessageContentSource)message).getSize());
+            }
+
+            @Override
+            public void dequeueMessage(TransactionLogResource  queue, EnqueableMessage message) throws AMQStoreException
+            {
+                _storeSizeIncrease.addAndGet(-((MessageContentSource)message).getSize());
+            }
+
+            @Override
+            public void commitTran() throws AMQStoreException
+            {
+                QuotaMessageStore.this.storedSizeChange(_storeSizeIncrease.intValue());
+            }
+
+            @Override
+            public void abortTran() throws AMQStoreException
+            {
+            }
+
+            @Override
+            public void removeXid(long format, byte[] globalId, byte[] branchId)
+            {
+            }
+
+            @Override
+            public void recordXid(long format, byte[] globalId, byte[] branchId, Record[] enqueues, Record[] dequeues)
+            {
+            }
+        };
+    }
+
+    @Override
+    public boolean isPersistent()
+    {
+        return true;
+    }
+
+    @Override
+    public void close() throws Exception
+    {
+        _stateManager.attainState(State.CLOSING);
+        _closed.getAndSet(true);
+        _stateManager.attainState(State.CLOSED);
+    }
+
+    @Override
+    public void addEventListener(EventListener eventListener, Event... events)
+    {
+        _eventManager.addEventListener(eventListener, events);
+    }
+
+    private void storedSizeChange(final int delta)
+    {
+        if(_persistentSizeHighThreshold > 0)
+        {
+            synchronized (this)
+            {
+                long newSize = _totalStoreSize += delta;
+                if(!_limitBusted &&  newSize > _persistentSizeHighThreshold)
+                {
+                    _limitBusted = true;
+                    _eventManager.notifyEvent(Event.PERSISTENT_MESSAGE_SIZE_OVERFULL);
+                }
+                else if(_limitBusted && newSize < _persistentSizeHighThreshold)
+                {
+                    _limitBusted = false;
+                    _eventManager.notifyEvent(Event.PERSISTENT_MESSAGE_SIZE_UNDERFULL);
+                }
+            }
+        }
+    }
+
+    @Override
+    public String getStoreType()
+    {
+        return "QUOTA";
+    }
+}