1 files changed, 115 insertions, 0 deletions
diff --git a/java/java/common/src/org/apache/qpid/framing/ContentHeaderBody.java b/java/java/common/src/org/apache/qpid/framing/ContentHeaderBody.java
new file mode 100644
index 0000000000..46b933b2c3
--- /dev/null
+++ b/java/java/common/src/org/apache/qpid/framing/ContentHeaderBody.java
@@ -0,0 +1,115 @@
+/*
+ *
+ * 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 ContentHeaderBody extends AMQBody
+{
+    public static final byte TYPE = 2;
+
+    public int classId;
+
+    public int weight;
+
+    /** unsigned long but java can't handle that anyway when allocating byte array */
+    public long bodySize;
+
+    /** must never be null */
+    public ContentHeaderProperties properties;
+
+    public ContentHeaderBody()
+    {
+    }
+
+    public ContentHeaderBody(ContentHeaderProperties props, int classId)
+    {
+        properties = props;
+        this.classId = classId;
+    }
+
+    public ContentHeaderBody(int classId, int weight, ContentHeaderProperties props, long bodySize)
+    {
+        this(props, classId);
+        this.weight = weight;
+        this.bodySize = bodySize;
+    }
+
+    protected byte getType()
+    {
+        return TYPE;
+    }
+
+    protected void populateFromBuffer(ByteBuffer buffer, long size) throws AMQFrameDecodingException
+    {
+        classId = buffer.getUnsignedShort();
+        weight = buffer.getUnsignedShort();
+        bodySize = buffer.getLong();
+        int propertyFlags = buffer.getUnsignedShort();
+        ContentHeaderPropertiesFactory factory = ContentHeaderPropertiesFactory.getInstance();
+        properties = factory.createContentHeaderProperties(classId, propertyFlags, buffer, (int)size - 14);
+    }
+
+    /**
+     * Helper method that is used currently by the persistence layer (by BDB at the moment).
+     * @param buffer
+     * @param size
+     * @return
+     * @throws AMQFrameDecodingException
+     */
+    public static ContentHeaderBody createFromBuffer(ByteBuffer buffer, long size) throws AMQFrameDecodingException
+    {
+        ContentHeaderBody body = new ContentHeaderBody();
+        body.populateFromBuffer(buffer, size);
+        return body;
+    }
+
+    public int getSize()
+    {
+        return 2 + 2 + 8 + 2 + properties.getPropertyListSize();
+    }
+
+    public void writePayload(ByteBuffer buffer)
+    {
+        EncodingUtils.writeUnsignedShort(buffer, classId);
+        EncodingUtils.writeUnsignedShort(buffer, weight);
+        buffer.putLong(bodySize);
+        EncodingUtils.writeUnsignedShort(buffer, properties.getPropertyFlags());
+        properties.writePropertyListPayload(buffer);
+    }
+
+    public static AMQFrame createAMQFrame(int channelId, int classId, int weight, BasicContentHeaderProperties properties,
+                                          long bodySize)
+    {
+        final AMQFrame frame = new AMQFrame();
+        frame.channel = channelId;
+        frame.bodyFrame = new ContentHeaderBody(classId, weight, properties, bodySize);
+        return frame;
+    }
+
+    public static AMQFrame createAMQFrame(int channelId, ContentHeaderBody body)
+    {
+        final AMQFrame frame = new AMQFrame();
+        frame.channel = channelId;
+        frame.bodyFrame = body;
+        return frame;
+    }
+}