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/*
* Copyright (c) 2006 Hyperic, Inc.
*
* 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.
*/
import org.hyperic.sigar.*;
/*
Example to show the process state for a given pid.
Compile the example:
% javac -classpath sigar-bin/lib/sigar.jar ProcessState.java
State of the java process running the example:
% java -classpath sigar-bin/lib/sigar.jar:. ProcessState
java: Running
State of the bash shell when invoking the example is running:
% java -classpath sigar-bin/lib/sigar.jar:. ProcessState $$
bash: Sleeping
State of emacs editor used to write the example:
% java -classpath sigar-bin/lib/sigar.jar:. ProcessState 2673
emacs: Suspended
See also: examples/Ps.java, examples/Top.java
*/
public class ProcessState {
private static String getStateString(char state) {
switch (state) {
case ProcState.SLEEP:
return "Sleeping";
case ProcState.RUN:
return "Running";
case ProcState.STOP:
return "Suspended";
case ProcState.ZOMBIE:
return "Zombie";
case ProcState.IDLE:
return "Idle";
default:
return String.valueOf(state);
}
}
public static void main(String[] args)
throws SigarException {
String pid;
if (args.length == 0) {
pid = "$$"; //default to this process
}
else {
pid = args[0];
}
Sigar sigar = new Sigar();
ProcState procState = sigar.getProcState(pid);
String state;
System.out.println(procState.getName() + ": " +
getStateString(procState.getState()));
sigar.close();
}
}
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