java/testing/org/apache/derbyTesting/functionTests/tests/lang/FakeByteArray.java

/*

   Derby - Class org.apache.derbyTesting.functionTests.tests.lang.FakeByteArray

   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.

 */

/**
 * A UDT which can serialize a lot of bytes.
 */
package org.apache.derbyTesting.functionTests.tests.lang;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectOutput;
import java.io.ObjectInput;

public class FakeByteArray implements Externalizable
{
    ///////////////////////////////////////////////////////////////////////////////////
    //
    // CONSTANTS
    //
    ///////////////////////////////////////////////////////////////////////////////////

    ///////////////////////////////////////////////////////////////////////////////////
    //
    // STATE
    //
    ///////////////////////////////////////////////////////////////////////////////////

    private int _length;
    private byte _fill;
    
    ///////////////////////////////////////////////////////////////////////////////////
    //
    // CONSTRUCTOR
    //
    ///////////////////////////////////////////////////////////////////////////////////

    public FakeByteArray() {}

    public FakeByteArray( int length, int fill )
    {
        _length = length;
        _fill = (byte) fill;
    }

    ///////////////////////////////////////////////////////////////////////////////////
    //
    // FUNCTIONS
    //
    ///////////////////////////////////////////////////////////////////////////////////

    public static FakeByteArray makeFakeByteArray( int length, int biggestByte )
    {
        return new FakeByteArray( length, biggestByte );
    }

    public static String toString( FakeByteArray data ) { return data.toString(); }
    
    ///////////////////////////////////////////////////////////////////////////////////
    //
    // Externalizable BEHAVIOR
    //
    ///////////////////////////////////////////////////////////////////////////////////

    public void writeExternal( ObjectOutput out ) throws IOException
    {
        out.writeInt( _length );

        for ( int i = 0; i < _length; i++ ) { out.write( _fill ); }
    }

    public void readExternal( ObjectInput in ) throws IOException
    {
        _length = in.readInt();

        for ( int i = 0; i < _length; i++ ) { _fill = (byte) in.read(); }
    }

    ///////////////////////////////////////////////////////////////////////////////////
    //
    // OTHER Object OVERRIDES
    //
    ///////////////////////////////////////////////////////////////////////////////////

    public String toString()
    {
        return "[ " + _length + ", " + _fill + " ]";
    }
}