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002 * Licensed to the Apache Software Foundation (ASF) under one   *
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004 * distributed with this work for additional information        *
005 * regarding copyright ownership.  The ASF licenses this file   *
006 * to you under the Apache License, Version 2.0 (the            *
007 * "License"); you may not use this file except in compliance   *
008 * with the License.  You may obtain a copy of the License at   *
009 *                                                              *
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017 * under the License.                                           *
018 ****************************************************************/
019
020package org.apache.james.mime4j;
021
022import java.io.OutputStream;
023import java.util.Random;
024
025import org.apache.commons.io.output.NullOutputStream;
026import org.apache.james.mime4j.codec.QuotedPrintableOutputStream;
027
028public class QuotedPrintableOutputStreamBench {
029
030    public static void main(String[] args) throws Exception {
031        byte[] data = initData(1024);
032
033        OutputStream nullOut = new NullOutputStream();
034        QuotedPrintableOutputStream base64Out = new QuotedPrintableOutputStream(nullOut, true);
035
036        // warmup
037
038        for (int i = 0; i < 2000; i++) {
039            base64Out.write(data);
040        }
041        Thread.sleep(100);
042
043        // test
044
045        long t0 = System.currentTimeMillis();
046
047        final int repetitions = 500000;
048        for (int i = 0; i < repetitions; i++) {
049            base64Out.write(data);
050        }
051        base64Out.close();
052
053        long dt = System.currentTimeMillis() - t0;
054        long totalBytes = data.length * (long) repetitions;
055
056        double mbPerSec = (totalBytes / 1024.0 / 1024) / (dt / 1000.0);
057
058        System.out.println(dt + " ms");
059        System.out.println(totalBytes + " bytes");
060        System.out.println(mbPerSec + " mb/sec");
061    }
062
063    private static byte[] initData(int size) {
064        Random random = new Random(size);
065        byte[] data = new byte[size];
066        random.nextBytes(data);
067        return data;
068    }
069
070}