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/*
* Copyright (c) 2008, 2018, 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.
*/
package nsk.share.aod;
import java.io.File;
import nsk.share.*;
public class Utils {
// prevent class instantiation
private Utils() {
}
public static final long JPS_WORK_TIMEOUT = 60000; // 1 min
/**
* Find id of VM with certain value of property key. Method findVMIdUsingJPS
* runs 'jps -v' and seeks in jps output line containing this unique string,
* discovered string should also contain VM id.
*
* @param jdkPath - path to jdk
* @param key - name of property
* @param value - value of property
* @return VM id
*/
public static String findVMIdUsingJPS(String jdkPath, String key, String value) {
try {
if (value == null) {
return null;
}
String idString = key + "=" + value;
String jpsPath = jdkPath + File.separator + "bin" + File.separator + "jps";
while (true) {
ProcessExecutor executor = new ProcessExecutor(jpsPath + " -v", JPS_WORK_TIMEOUT, "jps -v");
executor.startProcess();
executor.waitForProcess();
if (executor.getExitCode() != 0) {
throw new Failure("jps finished with non-zero code " + executor.getExitCode());
}
for (String jpsOutLine : executor.getProcessOut()) {
if (jpsOutLine.contains(idString)) {
if (jpsOutLine.indexOf(' ') < 0)
throw new Failure("Unexpected format of the jps output '" + jpsOutLine + " (line doesn't contain space)");
return jpsOutLine.substring(0, jpsOutLine.indexOf(' '));
}
}
Thread.sleep(100);
}
} catch (Failure f) {
throw f;
} catch (Throwable t) {
throw new Failure("Unexpected exception during jps execution: " + t, t);
}
}
public static String findCurrentVMIdUsingJPS(String jdkPath) {
/*
* VM should be run with special property which allows to find VM id using jps
* (see comments for method Utils.findVMIdUsingJPS)
*/
String applicationId = System.getProperty(AODTestRunner.targetAppIdProperty);
if (applicationId == null)
throw new TestBug("Property '" + AODTestRunner.targetAppIdProperty + "' isn't defined");
String targetVMId = Utils.findVMIdUsingJPS(jdkPath, AODTestRunner.targetAppIdProperty, applicationId);
return targetVMId;
}
}
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