Java example source code file (Main.java)
The Main.java Java example source code/*
* Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @summary The Serialization benchmark test. This java class is used to run the
* test under JTREG.
* @library ../../
* @build bench.BenchInfo bench.HtmlReporter bench.Util bench.Benchmark
* @build bench.Reporter bench.XmlReporter bench.ConfigFormatException
* @build bench.Harness bench.TextReporter
* @build bench.serial.BooleanArrays bench.serial.Booleans
* @build bench.serial.ByteArrays bench.serial.Bytes bench.serial.CharArrays
* @build bench.serial.Chars bench.serial.ClassDesc bench.serial.Cons
* @build bench.serial.CustomDefaultObjTrees bench.serial.CustomObjTrees
* @build bench.serial.DoubleArrays bench.serial.Doubles
* @build bench.serial.ExternObjTrees bench.serial.FloatArrays
* @build bench.serial.Floats bench.serial.GetPutFieldTrees
* @build bench.serial.IntArrays bench.serial.Ints bench.serial.LongArrays
* @build bench.serial.Longs bench.serial.Main bench.serial.ObjArrays
* @build bench.serial.ObjTrees bench.serial.ProxyArrays
* @build bench.serial.ProxyClassDesc bench.serial.RepeatObjs
* @build bench.serial.ReplaceTrees bench.serial.ShortArrays
* @build bench.serial.Shorts bench.serial.SmallObjTrees
* @build bench.serial.StreamBuffer bench.serial.Strings
* @run main/othervm/timeout=1800 bench.serial.Main -c jtreg-config
* @author Mike Warres, Nigel Daley
*/
package bench.serial;
import bench.ConfigFormatException;
import bench.Harness;
import bench.HtmlReporter;
import bench.Reporter;
import bench.TextReporter;
import bench.XmlReporter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.Timer;
import java.util.TimerTask;
/**
* Object serialization benchmark mainline.
*/
public class Main {
static final String CONFFILE = "config";
static final String VERSION = "1.3";
static final String TEST_SRC_PATH = System.getProperty("test.src") + File.separator;
static final int TEXT = 0;
static final int HTML = 1;
static final int XML = 2;
static boolean verbose;
static boolean list;
static boolean exitOnTimer;
static int testDurationSeconds;
static volatile boolean exitRequested;
static Timer timer;
static int format = TEXT;
static InputStream confstr;
static OutputStream repstr;
static Harness harness;
static Reporter reporter;
/**
* Print help message.
*/
static void usage() {
PrintStream p = System.err;
p.println("\nUsage: java -jar serialbench.jar [-options]");
p.println("\nwhere options are:");
p.println(" -h print this message");
p.println(" -v verbose mode");
p.println(" -l list configuration file");
p.println(" -t <num hours> repeat benchmarks for specified number of hours");
p.println(" -o <file> specify output file");
p.println(" -c <file> specify (non-default) configuration file");
p.println(" -html format output as html (default is text)");
p.println(" -xml format output as xml");
}
/**
* Throw RuntimeException that wrap message.
*
* @param mesg a message will be wrapped in the RuntimeException.
*/
static void die(String mesg) {
throw new RuntimeException(mesg);
}
/**
* Mainline parses command line, then hands off to benchmark harness.
*
* @param args
*/
public static void main(String[] args) {
parseArgs(args);
setupStreams();
if (list) {
listConfig();
} else {
setupHarness();
setupReporter();
if (exitOnTimer) {
setupTimer(testDurationSeconds);
do {
runBenchmarks();
} while (!exitRequested);
} else {
runBenchmarks();
}
}
}
/**
* Parse command-line arguments.
*/
static void parseArgs(String[] args) {
for (int i = 0; i < args.length; i++) {
switch (args[i]) {
case "-h":
usage();
System.exit(0);
break;
case "-v":
verbose = true;
break;
case "-l":
list = true;
break;
case "-t":
if (++i >= args.length)
die("Error: no timeout value specified");
try {
exitOnTimer = true;
testDurationSeconds = Integer.parseInt(args[i]) * 3600;
} catch (NumberFormatException e) {
die("Error: unable to determine timeout value");
}
break;
case "-o":
if (++i >= args.length)
die("Error: no output file specified");
try {
repstr = new FileOutputStream(args[i]);
} catch (FileNotFoundException e) {
die("Error: unable to open \"" + args[i] + "\"");
}
break;
case "-c":
if (++i >= args.length)
die("Error: no config file specified");
String confFileName = TEST_SRC_PATH + args[i];
try {
confstr = new FileInputStream(confFileName);
} catch (FileNotFoundException e) {
die("Error: unable to open \"" + confFileName + "\"");
}
break;
case "-html":
if (format != TEXT)
die("Error: conflicting formats");
format = HTML;
break;
case "-xml":
if (format != TEXT)
die("Error: conflicting formats");
format = XML;
break;
default:
usage();
die("Illegal option: \"" + args[i] + "\"");
}
}
}
/**
* Set up configuration file and report streams, if not set already.
*/
static void setupStreams() {
if (repstr == null)
repstr = System.out;
if (confstr == null)
confstr = Main.class.getResourceAsStream(TEST_SRC_PATH + CONFFILE);
if (confstr == null)
die("Error: unable to find default config file");
}
/**
* Print contents of configuration file to selected output stream.
*/
static void listConfig() {
try {
byte[] buf = new byte[256];
int len;
while ((len = confstr.read(buf)) != -1)
repstr.write(buf, 0, len);
} catch (IOException e) {
die("Error: failed to list config file");
}
}
/**
* Set up the timer to end the test.
*
* @param delay the amount of delay, in seconds, before requesting
* the process exit
*/
static void setupTimer(int delay) {
timer = new Timer(true);
timer.schedule(
new TimerTask() {
@Override
public void run() {
exitRequested = true;
}
},
delay * 1000);
}
/**
* Set up benchmark harness.
*/
static void setupHarness() {
try {
harness = new Harness(confstr);
} catch (ConfigFormatException e) {
String errmsg = e.getMessage();
if (errmsg != null) {
die("Error parsing config file: " + errmsg);
} else {
die("Error: illegal config file syntax");
}
} catch (IOException e) {
die("Error: failed to read config file");
}
}
/**
* Setup benchmark reporter.
*/
static void setupReporter() {
String title = "Object Serialization Benchmark, v" + VERSION;
switch (format) {
case TEXT:
reporter = new TextReporter(repstr, title);
break;
case HTML:
reporter = new HtmlReporter(repstr, title);
break;
case XML:
reporter = new XmlReporter(repstr, title);
break;
default:
die("Error: unrecognized format type");
}
}
/**
* Run benchmarks.
*/
static void runBenchmarks() {
harness.runBenchmarks(reporter, verbose);
}
}
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