org.wildfly.common.os.Process Maven / Gradle / Ivy
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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;
}
}