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/*
*
* 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.qpid.AMQException;
import org.apache.qpid.protocol.AMQVersionAwareProtocolSession;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.DataOutput;
import java.io.IOException;
public class ContentHeaderBody implements AMQBody
{
public static final byte TYPE = 2;
private int classId;
private int weight;
private long bodySize;
/** must never be null */
private ContentHeaderProperties properties;
public ContentHeaderBody()
{
}
public ContentHeaderBody(DataInput buffer, long size) throws AMQFrameDecodingException, IOException
{
classId = buffer.readUnsignedShort();
weight = buffer.readUnsignedShort();
bodySize = buffer.readLong();
int propertyFlags = buffer.readUnsignedShort();
ContentHeaderPropertiesFactory factory = ContentHeaderPropertiesFactory.getInstance();
properties = factory.createContentHeaderProperties(classId, propertyFlags, buffer, (int)size - 14);
}
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;
}
public byte getFrameType()
{
return TYPE;
}
/**
* 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(DataInputStream buffer, long size)
throws AMQFrameDecodingException, AMQProtocolVersionException, IOException
{
ContentHeaderBody body = new ContentHeaderBody(buffer, size);
return body;
}
public int getSize()
{
return 2 + 2 + 8 + 2 + properties.getPropertyListSize();
}
public void writePayload(DataOutput buffer) throws IOException
{
EncodingUtils.writeUnsignedShort(buffer, classId);
EncodingUtils.writeUnsignedShort(buffer, weight);
buffer.writeLong(bodySize);
EncodingUtils.writeUnsignedShort(buffer, properties.getPropertyFlags());
properties.writePropertyListPayload(buffer);
}
public void handle(final int channelId, final AMQVersionAwareProtocolSession session)
throws AMQException
{
session.contentHeaderReceived(channelId, this);
}
public static AMQFrame createAMQFrame(int channelId, int classId, int weight, BasicContentHeaderProperties properties,
long bodySize)
{
return new AMQFrame(channelId, new ContentHeaderBody(classId, weight, properties, bodySize));
}
public static AMQFrame createAMQFrame(int channelId, ContentHeaderBody body)
{
return new AMQFrame(channelId, body);
}
public ContentHeaderProperties getProperties()
{
return properties;
}
public void setProperties(ContentHeaderProperties props)
{
properties = props;
}
@Override
public String toString()
{
return "ContentHeaderBody{" +
"classId=" + classId +
", weight=" + weight +
", bodySize=" + bodySize +
", properties=" + properties +
'}';
}
public int getClassId()
{
return classId;
}
public int getWeight()
{
return weight;
}
/** unsigned long but java can't handle that anyway when allocating byte array */
public long getBodySize()
{
return bodySize;
}
public void setBodySize(long bodySize)
{
this.bodySize = bodySize;
}
}
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