Java example source code file (Main.java)
The Main.java Java example source code/*
* Copyright (c) 2000, 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 RMI benchmark test. This java class is used to run the test
* under JTREG.
* @library ../../../../testlibrary ../../
* @build TestLibrary bench.BenchInfo bench.HtmlReporter bench.Util
* bench.Benchmark bench.Reporter bench.XmlReporter bench.ConfigFormatException
* bench.Harness bench.TextReporter bench.rmi.BenchServer
* bench.rmi.DoubleArrayCalls bench.rmi.LongCalls bench.rmi.ShortCalls
* bench.rmi.BenchServerImpl bench.rmi.DoubleCalls bench.rmi.Main
* bench.rmi.SmallObjTreeCalls bench.rmi.BooleanArrayCalls
* bench.rmi.ExceptionCalls bench.rmi.NullCalls bench.rmi.BooleanCalls
* bench.rmi.ExportObjs bench.rmi.ObjArrayCalls bench.rmi.ByteArrayCalls
* bench.rmi.FloatArrayCalls bench.rmi.ObjTreeCalls bench.rmi.ByteCalls
* bench.rmi.FloatCalls bench.rmi.ProxyArrayCalls bench.rmi.CharArrayCalls
* bench.rmi.IntArrayCalls bench.rmi.RemoteObjArrayCalls bench.rmi.CharCalls
* bench.rmi.IntCalls bench.rmi.ClassLoading bench.rmi.LongArrayCalls
* bench.rmi.ShortArrayCalls
* bench.rmi.altroot.Node
* @run main/othervm/policy=policy.all/timeout=1800 bench.rmi.Main -server -c config
* @author Mike Warres, Nigel Daley
*/
package bench.rmi;
import bench.ConfigFormatException;
import bench.Harness;
import bench.HtmlReporter;
import bench.Reporter;
import bench.TextReporter;
import bench.XmlReporter;
import static bench.rmi.Main.OutputFormat.*;
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.rmi.AlreadyBoundException;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.RemoteObject;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
/**
* RMI/Serialization benchmark tests.
*/
public class Main {
/**
* RMI-specific benchmark harness.
*/
static class RMIHarness extends Harness {
/**
* Construct new RMI benchmark harness.
*/
RMIHarness(InputStream in) throws IOException, ConfigFormatException {
super(in);
}
/**
* Cleanup both client and server side in between each benchmark.
*/
@Override
protected void cleanup() {
System.gc();
if (Main.runmode == CLIENT) {
try {
Main.server.gc();
} catch (RemoteException e) {
System.err.println("Warning: server gc failed: " + e);
}
}
}
}
static final String CONFFILE = "config";
static final String VERSION = "1.3";
static final String REGNAME = "server";
static final int SAMEVM = 0;
static final int CLIENT = 1;
static final int SERVER = 2;
static enum OutputFormat {
TEXT {
@Override
Reporter getReport(String title) {
return new TextReporter(repstr, title);
}
},
HTML {
@Override
Reporter getReport(String title) {
return new HtmlReporter(repstr, title);
}
},
XML {
@Override
Reporter getReport(String title) {
return new XmlReporter(repstr, title);
}
};
abstract Reporter getReport(String title);
};
static final String TEST_SRC_PATH = System.getProperty("test.src") + File.separator;
static boolean verbose;
static boolean list;
static boolean exitOnTimer;
static int testDurationSeconds;
static volatile boolean exitRequested;
static Timer timer;
static OutputFormat format = TEXT;
static int runmode;
static String confFile;
static InputStream confstr;
static String repFile;
static OutputStream repstr;
static String host;
static int port;
static RMIHarness harness;
static Reporter reporter;
static BenchServer server;
static BenchServerImpl serverImpl;
/**
* Returns reference to benchmark server.
*
* @return a benchmark server
*/
public static BenchServer getBenchServer() {
return server;
}
/**
* Prints help message.
*/
static void usage() {
PrintStream p = System.err;
p.println("\nUsage: java -jar rmibench.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");
p.println(" -server run benchmark server ");
p.println(" -client <host:port> run benchmark client using server "
+ "on specified host/port");
}
/**
* Throw RuntimeException that wrap message.
*
* @param mesg a message will be wrapped in the RuntimeException.
*/
static void die(String mesg) {
throw new RuntimeException(mesg);
}
/**
* Benchmark mainline.
*
* @param args
*/
public static void main(String[] args) {
setupSecurity();
parseArgs(args);
setupStreams();
if (list) {
listConfig();
} else {
setupServer();
switch (runmode) {
case SAMEVM:
case CLIENT:
setupHarness();
setupReporter();
if (exitOnTimer) {
setupTimer(testDurationSeconds);
do {
runBenchmarks();
} while (!exitRequested);
} else {
runBenchmarks();
}
break;
case SERVER:
//Setup for client mode, server will fork client process
//after its initiation.
List<String> clientProcessStr = new ArrayList<>();
clientProcessStr.add(System.getProperty("test.jdk") +
File.separator + "bin" + File.separator + "java");
String classpath = System.getProperty("java.class.path");
if (classpath != null) {
clientProcessStr.add("-cp");
clientProcessStr.add(classpath);
}
clientProcessStr.add("-Djava.security.policy=" + TEST_SRC_PATH + "policy.all");
clientProcessStr.add("-Dtest.src=" + TEST_SRC_PATH);
clientProcessStr.add("bench.rmi.Main"); //Client mode
if (verbose) {
clientProcessStr.add("-v");
}
if (list) {
clientProcessStr.add("-l");
}
clientProcessStr.add("-client");
clientProcessStr.add("localhost:" + port);
if (exitOnTimer) {
clientProcessStr.add("-t");
clientProcessStr.add(String.valueOf(testDurationSeconds / 3600));
}
if (repFile != null) {
clientProcessStr.add("-o");
clientProcessStr.add(repFile);
}
if (confFile != null) {
clientProcessStr.add("-c");
clientProcessStr.add(confFile);
}
switch (format) {
case HTML:
clientProcessStr.add("-html");
break;
case XML:
clientProcessStr.add("-xml");
break;
}
try {
Process client = new ProcessBuilder(clientProcessStr).
inheritIO().start();
client.waitFor();
int exitValue = client.exitValue();
if (0 != exitValue) {
die("Error: error happened in client process, exitValue = " + exitValue);
}
} catch (IOException ex) {
die("Error: Unable start client process, ex=" + ex.getMessage());
} catch (InterruptedException ex) {
die("Error: Error happening to client process, ex=" + ex.getMessage());
}
break;
}
}
}
/**
* 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 {
repFile = args[i];
repstr = new FileOutputStream(repFile);
} catch (FileNotFoundException e) {
die("Error: unable to open \"" + args[i] + "\"");
}
break;
case "-c":
if (++i >= args.length) {
die("Error: no config file specified");
}
confFile = args[i];
String confFullPath = TEST_SRC_PATH + confFile;
try {
confstr = new FileInputStream(confFullPath);
} catch (FileNotFoundException e) {
die("Error: unable to open \"" + confFullPath + "\"");
}
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;
case "-client":
if (runmode == CLIENT) {
die("Error: multiple -client options");
}
if (runmode == SERVER) {
die("Error: -client and -server options conflict");
}
if (++i >= args.length) {
die("Error: -client missing host/port");
}
try {
String[] hostAndPort = args[i].split(":");
if (hostAndPort.length != 2) {
die("Error: Invalid format host/port:" + args[i]);
}
host = hostAndPort[0];
port = Integer.parseInt(hostAndPort[1]);
} catch (NumberFormatException e) {
die("Error: illegal host/port specified for -client");
}
runmode = CLIENT;
break;
case "-server":
if (runmode == CLIENT) {
die("Error: -client and -server options conflict");
}
if (runmode == SERVER) {
die("Error: multiple -server options");
}
try {
//This is the hack code because named package class has
//difficulty in accessing unamed package class. This
//should be removed ater JDK-8003358 is finished.
port = (int) Class.forName("TestLibrary")
.getMethod("getUnusedRandomPort")
.invoke(null);
} catch (ReflectiveOperationException ex) {
die("Error: can't get a free port " + ex);
}
runmode = SERVER;
break;
default:
usage();
die("Illegal option: \"" + args[i] + "\"");
}
}
}
/**
* Set up security manager and policy, if not set already.
*/
static void setupSecurity() {
if (System.getSecurityManager() != null) {
return;
}
/* As of 1.4, it is too late to set the security policy
* file at this point so these line have been commented out.
*/
//System.setProperty("java.security.policy",
// Main.class.getResource("/bench/rmi/policy.all").toString());
System.setSecurityManager(new SecurityManager());
}
/**
* 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");
}
}
/**
* Setup benchmark server.
*/
static void setupServer() {
switch (runmode) {
case SAMEVM:
try {
serverImpl = new BenchServerImpl();
server = (BenchServer) RemoteObject.toStub(serverImpl);
} catch (RemoteException e) {
die("Error: failed to create local server: " + e);
}
if (verbose)
System.out.println("Benchmark server created locally");
break;
case CLIENT:
try {
Registry reg = LocateRegistry.getRegistry(host, port);
server = (BenchServer) reg.lookup(REGNAME);
} catch (NotBoundException | RemoteException e) {
die("Error: failed to connect to server: " + e);
}
if (server == null) {
die("Error: server not found");
}
if (verbose) {
System.out.println("Connected to benchmark server on " +
host + ":" + port);
}
break;
case SERVER:
try {
Registry reg = LocateRegistry.createRegistry(port);
serverImpl = new BenchServerImpl();
reg.bind(REGNAME, serverImpl);
} catch (AlreadyBoundException | RemoteException e) {
die("Error: failed to initialize server: " + e);
}
if (verbose) {
System.out.println("Benchmark server started on port " +
port);
}
break;
default:
throw new InternalError("illegal runmode");
}
}
/**
* 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 RMIHarness(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() {
reporter = format.getReport("RMI Benchmark, v" + VERSION);
}
/**
* Run benchmarks.
*/
static void runBenchmarks() {
harness.runBenchmarks(reporter, verbose);
}
}
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