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/*
* Copyright (c) 2017, 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.
*/
import java.io.OutputStream;
import java.io.IOException;
/**
* Class to run and control registry/rmiregistry in a sub-process.
* The behaviour changes when use different runner, currently
* there are 2 built-in runners, RegistryRunner and RMIRegistryRunner.
*
* We can't kill a registry if we have too-close control
* over it. We must make it in a subprocess, and then kill the
* subprocess when it has served our needs.
*/
public class RegistryVM extends JavaVM {
private static final double START_TIMEOUT =
20_000 * TestLibrary.getTimeoutFactor();
private static final String DEFAULT_RUNNER = "RegistryRunner";
private int port = -1;
private RegistryVM(String runner, OutputStream out, OutputStream err,
String options, int port) {
super(runner, options, Integer.toString(port), out, err);
try {
Class runnerClass = Class.forName(runner);
if (!RegistryRunner.class.isAssignableFrom(runnerClass)) {
throw new RuntimeException("runner class must be RegistryRunner"
+ " or its sub class");
}
} catch (ClassNotFoundException ex) {
throw new RuntimeException(ex);
}
this.port = port;
}
/**
* Create a RegistryVM instance on an ephemeral port.
*
* @return a RegistryVM instance
*/
public static RegistryVM createRegistryVM() {
return createRegistryVMWithRunner(DEFAULT_RUNNER, System.out, System.err, "", 0);
}
/**
* Create a RegistryVM instance on an ephemeral port with additional
* command line options.
*
* @param options command line options
* @return a RegistryVM instance
*/
public static RegistryVM createRegistryVM(String options) {
return createRegistryVMWithRunner(
DEFAULT_RUNNER, System.out, System.err, options, 0);
}
/**
* Create a RegistryVM instance on a specified port capturing stdout and
* stderr with additional command line options.
*
* @param out the OutputStream where the normal output of the
* registry subprocess goes
* @param err the OutputStream where the error output of the
* registry subprocess goes
* @param options the command line options
* @param port the port on which Registry accepts requests
* @return a RegistryVM instance
*/
public static RegistryVM createRegistryVM(OutputStream out, OutputStream err,
String options, int port) {
return createRegistryVMWithRunner(DEFAULT_RUNNER, out, err, options, port);
}
/**
* Create a RegistryVM instance on an ephemeral port with additional
* command line options and a specified runner.
*
* @param runner the runner class name
* @param options command line options
* @return a RegistryVM instance
*/
public static RegistryVM createRegistryVMWithRunner(String runner, String options) {
return createRegistryVMWithRunner(runner, System.out, System.err, options, 0);
}
/**
* Create a RegistryVM instance on a specified port capturing stdout and
* stderr with additional command line options and a specified runner.
*
* @param runner the runner class name
* @param out the OutputStream where the normal output of the
* registry subprocess goes
* @param err the OutputStream where the error output of the
* registry subprocess goes
* @param options the command line options
* @param port the port on which Registry accepts requests
* @return a RegistryVM instance
*/
public static RegistryVM createRegistryVMWithRunner(String runner, OutputStream out,
OutputStream err, String options, int port) {
options += " --add-exports=java.rmi/sun.rmi.registry=ALL-UNNAMED"
+ " --add-exports=java.rmi/sun.rmi.server=ALL-UNNAMED"
+ " --add-exports=java.rmi/sun.rmi.transport=ALL-UNNAMED"
+ " --add-exports=java.rmi/sun.rmi.transport.tcp=ALL-UNNAMED";
RegistryVM reg = new RegistryVM(runner, out, err, options, port);
reg.setPolicyFile(TestParams.defaultRegistryPolicy);
return reg;
}
/**
* Starts the registry in a sub-process and waits up to
* the given timeout period to confirm that it's running,
* and get the port where it's running.
*
* @throws IOException if fails to start subprocess
*/
public void start() throws IOException {
super.start();
long startTime = System.currentTimeMillis();
long deadline = TestLibrary.computeDeadline(startTime, (long)START_TIMEOUT);
while (true) {
try {
Thread.sleep(1000);
} catch (InterruptedException ignore) { }
String output = outputStream.ba.toString();
port = RegistryRunner.getRegistryPort(output);
if (port != -1) {
break;
}
try {
int exit = vm.exitValue();
TestLibrary.bomb("[RegistryVM] registry sub-process exited with status "
+ exit + ".");
} catch (IllegalThreadStateException ignore) { }
if (System.currentTimeMillis() > deadline) {
TestLibrary.bomb("Failed to start registry, giving up after " +
(System.currentTimeMillis() - startTime) + "ms.", null);
}
}
}
/**
* Shuts down the registry.
*/
@Override
public void cleanup() {
RegistryRunner.requestExit(port);
super.destroy();
}
/**
* Gets the port where the registry is serving.
*
* @return the port where the registry is serving
*/
public int getPort() {
return port;
}
}
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