dubbo-common/src/main/java/com/alibaba/dubbo/common/serialize/support/java/CompactedObjectOutputStream.java

/*
 * Copyright 1999-2011 Alibaba Group.
 *  
 * Licensed 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 com.alibaba.dubbo.common.serialize.support.java;

import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamClass;
import java.io.OutputStream;

/**
 * Compacted java object output stream.
 * 
 * @author qianlei
 */

public class CompactedObjectOutputStream extends ObjectOutputStream
{
	public CompactedObjectOutputStream(OutputStream out) throws IOException
	{
		super(out);
	}

	@Override
	protected void writeClassDescriptor(ObjectStreamClass desc) throws IOException
	{
		Class<?> clazz = desc.forClass();
		if( clazz.isPrimitive() || clazz.isArray() )
		{
			write(0);
			super.writeClassDescriptor(desc);
		}
		else
		{
			write(1);
			writeUTF(desc.getName());
		}
	}
}