1 files changed, 85 insertions, 0 deletions
diff --git a/java/java/common/src/org/apache/qpid/framing/ContentBody.java b/java/java/common/src/org/apache/qpid/framing/ContentBody.java
new file mode 100644
index 0000000000..2aae833fcd
--- /dev/null
+++ b/java/java/common/src/org/apache/qpid/framing/ContentBody.java
@@ -0,0 +1,85 @@
+/*
+ *
+ * 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.framing;
+
+import org.apache.mina.common.ByteBuffer;
+
+public class ContentBody extends AMQBody
+{
+    public static final byte TYPE = 3;
+
+    public ByteBuffer payload;
+
+    protected byte getType()
+    {
+        return TYPE;
+    }
+
+    public int getSize()
+    {
+        return (payload == null ? 0 : payload.limit());
+    }
+
+    public void writePayload(ByteBuffer buffer)
+    {
+        if (payload != null)
+        {
+            ByteBuffer copy = payload.duplicate();
+            buffer.put(copy.rewind());
+        }
+    }
+
+    protected void populateFromBuffer(ByteBuffer buffer, long size) throws AMQFrameDecodingException
+    {
+        if (size > 0)
+        {
+            payload = buffer.slice();
+            payload.limit((int) size);
+            buffer.skip((int) size);
+        }
+
+    }
+
+    public void reduceBufferToFit()
+    {
+        if (payload != null && (payload.remaining() < payload.capacity() / 2))
+        {
+            int size = payload.limit();
+            ByteBuffer newPayload = ByteBuffer.allocate(size);
+
+            newPayload.put(payload);
+            newPayload.flip();
+
+            //reduce reference count on payload
+            payload.release();
+
+            payload = newPayload;
+        }
+    }
+
+    public static AMQFrame createAMQFrame(int channelId, ContentBody body)
+    {
+        final AMQFrame frame = new AMQFrame();
+        frame.channel = channelId;
+        frame.bodyFrame = body;
+        return frame;
+    }
+}