1 files changed, 139 insertions, 0 deletions
diff --git a/qpid/java/broker-core/src/main/java/org/apache/qpid/server/store/StoredMemoryMessage.java b/qpid/java/broker-core/src/main/java/org/apache/qpid/server/store/StoredMemoryMessage.java
new file mode 100755
index 0000000000..e7302270bb
--- /dev/null
+++ b/qpid/java/broker-core/src/main/java/org/apache/qpid/server/store/StoredMemoryMessage.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.store;
+
+import java.nio.ByteBuffer;
+
+public class StoredMemoryMessage implements StoredMessage
+{
+    private final long _messageNumber;
+    private ByteBuffer _content;
+    private final StorableMessageMetaData _metaData;
+
+    public StoredMemoryMessage(long messageNumber, StorableMessageMetaData metaData)
+    {
+        _messageNumber = messageNumber;
+        _metaData = metaData;
+    }
+
+    public long getMessageNumber()
+    {
+        return _messageNumber;
+    }
+
+    public void addContent(int offsetInMessage, ByteBuffer src)
+    {
+        if(_content == null)
+        {
+            if(offsetInMessage == 0)
+            {
+                _content = src.slice();
+            }
+            else
+            {
+                final int contentSize = _metaData.getContentSize();
+                int size = (contentSize < offsetInMessage + src.remaining())
+                        ? offsetInMessage + src.remaining()
+                        : contentSize;
+                _content = ByteBuffer.allocate(size);
+                addContent(offsetInMessage, src);
+            }
+        }
+        else
+        {
+            if(_content.limit() >= offsetInMessage + src.remaining())
+            {
+                _content.position(offsetInMessage);
+                _content.put(src);
+                _content.position(0);
+            }
+            else
+            {
+                final int contentSize = _metaData.getContentSize();
+                int size = (contentSize < offsetInMessage + src.remaining())
+                        ? offsetInMessage + src.remaining()
+                        : contentSize;
+                ByteBuffer oldContent = _content;
+                _content = ByteBuffer.allocate(size);
+                _content.put(oldContent);
+                _content.position(0);
+                addContent(offsetInMessage, src);
+            }
+
+        }
+    }
+
+    public int getContent(int offset, ByteBuffer dst)
+    {
+        if(_content == null)
+        {
+            return 0;
+        }
+        ByteBuffer src = _content.duplicate();
+
+        int oldPosition = src.position();
+
+        src.position(oldPosition + offset);
+
+        int length = dst.remaining() < src.remaining() ? dst.remaining() : src.remaining();
+        src.limit(oldPosition + length);
+
+        dst.put(src);
+
+
+        return length;
+    }
+
+
+    public ByteBuffer getContent(int offsetInMessage, int size)
+    {
+        if(_content == null)
+        {
+            return null;
+        }
+        ByteBuffer buf = _content.duplicate();
+
+        if(offsetInMessage != 0)
+        {
+            buf.position(offsetInMessage);
+            buf = buf.slice();
+        }
+
+        buf.limit(size);
+        return buf;
+    }
+
+    public StoreFuture flushToStore()
+    {
+        return StoreFuture.IMMEDIATE_FUTURE;
+    }
+
+
+    public StorableMessageMetaData getMetaData()
+    {
+        return _metaData;
+    }
+
+    public void remove()
+    {
+    }
+}