1 files changed, 103 insertions, 0 deletions
diff --git a/java/java/common/src/org/apache/qpid/framing/CompositeAMQDataBlock.java b/java/java/common/src/org/apache/qpid/framing/CompositeAMQDataBlock.java
new file mode 100644
index 0000000000..5ec62ede93
--- /dev/null
+++ b/java/java/common/src/org/apache/qpid/framing/CompositeAMQDataBlock.java
@@ -0,0 +1,103 @@
+/*
+ *
+ * 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 CompositeAMQDataBlock extends AMQDataBlock implements EncodableAMQDataBlock
+{
+    private ByteBuffer _encodedBlock;
+
+    private AMQDataBlock[] _blocks;
+
+    public CompositeAMQDataBlock(AMQDataBlock[] blocks)
+    {
+        _blocks = blocks;
+    }
+
+    /**
+     * The encoded block will be logically first before the AMQDataBlocks which are encoded
+     * into the buffer afterwards.
+     * @param encodedBlock already-encoded data
+     * @param blocks some blocks to be encoded.
+     */
+    public CompositeAMQDataBlock(ByteBuffer encodedBlock, AMQDataBlock[] blocks)
+    {
+        this(blocks);
+        _encodedBlock = encodedBlock;
+    }
+
+    public AMQDataBlock[] getBlocks()
+    {
+        return _blocks;
+    }
+
+    public ByteBuffer getEncodedBlock()
+    {
+        return _encodedBlock;
+    }
+
+    public long getSize()
+    {
+        long frameSize = 0;
+        for (int i = 0; i < _blocks.length; i++)
+        {
+            frameSize += _blocks[i].getSize();
+        }
+        if (_encodedBlock != null)
+        {
+            _encodedBlock.rewind();
+            frameSize += _encodedBlock.remaining();
+        }
+        return frameSize;
+    }
+
+    public void writePayload(ByteBuffer buffer)
+    {
+        if (_encodedBlock != null)
+        {
+            buffer.put(_encodedBlock);
+        }
+        for (int i = 0; i < _blocks.length; i++)
+        {
+            _blocks[i].writePayload(buffer);
+        }
+    }
+
+    public String toString()
+    {
+        if (_blocks == null)
+        {
+            return "No blocks contained in composite frame";
+        }
+        else
+        {
+            StringBuilder buf = new StringBuilder(this.getClass().getName());
+            buf.append("{encodedBlock=").append(_encodedBlock);
+            for (int i = 0 ; i < _blocks.length; i++)
+            {
+                buf.append(" ").append(i).append("=[").append(_blocks[i].toString()).append("]");
+            }
+            buf.append("}");
+            return buf.toString();
+        }
+    }
+}