OutputStreamLimiter.java

/*
 *              bitlet - Simple bittorrent library
 *  Copyright (C) 2008 Alessandro Bahgat Shehata, Daniele Castagna
 *
 *  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 org.bitlet.wetorrent.util.stream;

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

public class OutputStreamLimiter extends OutputStream{

    private OutputStream os;
    private BandwidthLimiter bandwidthLimiter;
    
    /** Creates a new instance of OutputStreamLimiter */
    public OutputStreamLimiter( OutputStream os, BandwidthLimiter bandwidthLimiter) {
        this.os = os;
        this.bandwidthLimiter = bandwidthLimiter;
    }

    public void write(int b) throws IOException {
        if (bandwidthLimiter != null)
            bandwidthLimiter.limitNextBytes(1);
        os.write(b);
    }

    public void write(byte[] b, int off, int len) throws IOException {
        if (bandwidthLimiter != null)
            bandwidthLimiter.limitNextBytes(len);
        os.write(b,off,len);
    }
    

    
}