/*
* 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.mina.filter.codec.serialization;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.ObjectOutput;
import java.io.OutputStream;
import org.apache.mina.common.ByteBuffer;
/**
* An {@link ObjectOutput} and {@link OutputStream} that can write the objects as
* the serialized form that {@link ObjectSerializationDecoder} can decode.
*
* @author The Apache Directory Project (mina-dev@directory.apache.org)
* @version $Rev: 451854 $, $Date: 2006-10-02 11:30:11 +0900 (월, 02 10월 2006) $
*/
public class ObjectSerializationOutputStream extends OutputStream implements ObjectOutput {
private final DataOutputStream out;
private int maxObjectSize = Integer.MAX_VALUE;
public ObjectSerializationOutputStream( OutputStream out )
{
if( out == null )
{
throw new NullPointerException( "out" );
}
if( out instanceof DataOutputStream )
{
this.out = ( DataOutputStream ) out;
}
else
{
this.out = new DataOutputStream( out );
}
}
/**
* Returns the allowed maximum size of the encoded object.
* If the size of the encoded object exceeds this value, this encoder
* will throw a {@link IllegalArgumentException}. The default value
* is {@link Integer#MAX_VALUE}.
*/
public int getMaxObjectSize()
{
return maxObjectSize;
}
/**
* Sets the allowed maximum size of the encoded object.
* If the size of the encoded object exceeds this value, this encoder
* will throw a {@link IllegalArgumentException}. The default value
* is {@link Integer#MAX_VALUE}.
*/
public void setMaxObjectSize( int maxObjectSize )
{
if( maxObjectSize <= 0 )
{
throw new IllegalArgumentException( "maxObjectSize: " + maxObjectSize );
}
this.maxObjectSize = maxObjectSize;
}
public void close() throws IOException
{
out.close();
}
public void flush() throws IOException
{
out.flush();
}
public void write( int b ) throws IOException
{
out.write( b );
}
public void write( byte[] b ) throws IOException
{
out.write( b );
}
public void write( byte[] b, int off, int len ) throws IOException
{
out.write( b, off, len );
}
public void writeObject( Object obj ) throws IOException
{
ByteBuffer buf = ByteBuffer.allocate( 64, false );
buf.setAutoExpand( true );
buf.putObject( obj );
int objectSize = buf.position() - 4;
if( objectSize > maxObjectSize )
{
buf.release();
throw new IllegalArgumentException( "The encoded object is too big: " + objectSize + " (> " + maxObjectSize + ')' );
}
out.write( buf.array(), 0, buf.position() );
buf.release();
}
public void writeBoolean( boolean v ) throws IOException
{
out.writeBoolean( v );
}
public void writeByte( int v ) throws IOException
{
out.writeByte( v );
}
public void writeBytes( String s ) throws IOException
{
out.writeBytes( s );
}
public void writeChar( int v ) throws IOException
{
out.writeChar( v );
}
public void writeChars( String s ) throws IOException
{
out.writeChars( s );
}
public void writeDouble( double v ) throws IOException
{
out.writeDouble( v );
}
public void writeFloat( float v ) throws IOException
{
out.writeFloat( v );
}
public void writeInt( int v ) throws IOException
{
out.writeInt( v );
}
public void writeLong( long v ) throws IOException
{
out.writeLong( v );
}
public void writeShort( int v ) throws IOException
{
out.writeShort( v );
}
public void writeUTF( String str ) throws IOException
{
out.writeUTF( str );
}
}