org.wildfly.common.os.Process 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).
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2017 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.security.AccessController.doPrivileged;
/**
* Utilities for getting information about the current process.
*
* @author David M. Lloyd
*/
public final class Process {
private static final long processId;
private static final String processName;
static {
Object[] array = doPrivileged(new GetProcessInfoAction());
processId = ((Long) array[0]).longValue();
processName = (String) array[1];
}
private Process() {
}
/**
* Get the name of this process. If the process name is not known, then "<unknown>" is returned.
*
* @return the process name (not {@code null})
*/
public static String getProcessName() {
return processName;
}
/**
* Get the ID of this process. This is the operating system specific PID. If the PID cannot be determined,
* -1 is returned.
*
* @return the ID of this process, or -1 if it cannot be determined
*/
public static long getProcessId() {
return processId;
}
}