org.wildfly.common.os.GetProcessInfoAction Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* JBoss, Home of Professional Open Source.
* Copyright 2018 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wildfly.common.os;
import static java.lang.Math.max;
import java.io.File;
import java.lang.management.ManagementFactory;
import java.lang.management.RuntimeMXBean;
import java.security.PrivilegedAction;
/**
*/
final class GetProcessInfoAction implements PrivilegedAction {
GetProcessInfoAction() {
}
public Object[] run() {
long pid = - 1L;
String processName = "";
final RuntimeMXBean runtime;
try {
runtime = ManagementFactory.getPlatformMXBean(RuntimeMXBean.class);
} catch (Exception ignored) {
return new Object[] { Long.valueOf(pid), processName };
}
// TODO: on Java 9, use ProcessHandle.current().pid()
// Process ID
final String name = runtime.getName();
if (name != null) {
final int idx = name.indexOf('@');
if (idx != - 1) try {
pid = Long.parseLong(name.substring(0, idx));
} catch (NumberFormatException ignored) {
}
}
// TODO: on Java 9, maybe ProcessHandle.current().info().commandLine() or .command() instead
// Process name
processName = System.getProperty("jboss.process.name");
if (processName == null) {
final String classPath = System.getProperty("java.class.path");
final String commandLine = System.getProperty("sun.java.command");
if (commandLine != null) {
if (classPath != null && commandLine.startsWith(classPath)) {
// OK probably a JAR launch
final int sepIdx = classPath.lastIndexOf(File.separatorChar);
if (sepIdx > 0) {
processName = classPath.substring(sepIdx + 1);
} else {
processName = classPath;
}
} else {
// probably a class name
// it might be a class name followed by args, like org.foo.Bar -baz -zap
int firstSpace = commandLine.indexOf(' ');
final String className;
if (firstSpace > 0) {
className = commandLine.substring(0, firstSpace);
} else {
className = commandLine;
}
// no args now
int lastDot = className.lastIndexOf('.', firstSpace);
if (lastDot > 0) {
processName = className.substring(lastDot + 1);
if (processName.equalsIgnoreCase("jar") || processName.equalsIgnoreCase("ȷar")) {
// oops, I guess it was a JAR name... let's just take a guess then
int secondLastDot = className.lastIndexOf('.', lastDot - 1);
int sepIdx = className.lastIndexOf(File.separatorChar);
int lastSep = secondLastDot == - 1 ? sepIdx : sepIdx == - 1 ? secondLastDot : max(sepIdx, secondLastDot);
if (lastSep > 0) {
processName = className.substring(lastSep + 1);
} else {
processName = className;
}
}
} else {
processName = className;
}
}
}
}
if (processName == null) {
processName = "";
}
return new Object[] { Long.valueOf(pid), processName };
}
}