/*
 * 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.commons.imaging.util;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;

public class CachingOutputStream extends OutputStream
{
    private final OutputStream os;
    private final ByteArrayOutputStream baos = new ByteArrayOutputStream();

    public CachingOutputStream(OutputStream os)
    {
        this.os = os;
    }

    @Override
    public void write(int b) throws IOException
    {
        os.write(b);
        baos.write(b);
    }

    public byte[] getCache()
    {
        return baos.toByteArray();
    }

    @Override
    public void close() throws IOException
    {
        os.close();
    }

    @Override
    public void flush() throws IOException
    {
        os.flush();
    }

}