001/*
002 * ====================================================================
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *   http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing,
014 * software distributed under the License is distributed on an
015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
016 * KIND, either express or implied.  See the License for the
017 * specific language governing permissions and limitations
018 * under the License.
019 * ====================================================================
020 *
021 * This software consists of voluntary contributions made by many
022 * individuals on behalf of the Apache Software Foundation.  For more
023 * information on the Apache Software Foundation, please see
024 * <http://www.apache.org/>.
025 *
026 */
027package org.apache.http.benchmark;
028
029import java.io.FilterInputStream;
030import java.io.IOException;
031import java.io.InputStream;
032
033class CountingInputStream extends FilterInputStream {
034
035    private final Stats stats;
036
037    CountingInputStream(final InputStream instream, final Stats stats) {
038        super(instream);
039        this.stats = stats;
040    }
041
042    @Override
043    public int read() throws IOException {
044        final int b = this.in.read();
045        if (b != -1) {
046            this.stats.incTotalBytesRecv(1);
047        }
048        return b;
049    }
050
051    @Override
052    public int read(final byte[] b) throws IOException {
053        final int bytesRead = this.in.read(b);
054        if (bytesRead > 0) {
055            this.stats.incTotalBytesRecv(bytesRead);
056        }
057        return bytesRead;
058    }
059
060    @Override
061    public int read(final byte[] b, final int off, final int len) throws IOException {
062        final int bytesRead = this.in.read(b, off, len);
063        if (bytesRead > 0) {
064            this.stats.incTotalBytesRecv(bytesRead);
065        }
066        return bytesRead;
067    }
068
069    @Override
070    public long skip(final long n) throws IOException {
071        final long bytesRead = this.in.skip(n);
072        if (bytesRead > 0) {
073            this.stats.incTotalBytesRecv(bytesRead);
074        }
075        return bytesRead;
076    }
077
078}