co.paralleluniverse.fibers.FiberInfo Maven / Gradle / Ivy
/*
* Quasar: lightweight threads and actors for the JVM.
* Copyright (c) 2013-2014, Parallel Universe Software Co. All rights reserved.
*
* This program and the accompanying materials are dual-licensed under
* either the terms of the Eclipse Public License v1.0 as published by
* the Eclipse Foundation
*
* or (per the licensee's choosing)
*
* under the terms of the GNU Lesser General Public License version 3.0
* as published by the Free Software Foundation.
*/
package co.paralleluniverse.fibers;
import co.paralleluniverse.strands.Strand;
import co.paralleluniverse.strands.Strand.State;
import javax.management.ConstructorParameters;
//import javax.management.openmbean.CompositeData;
/**
* Current information about a fiber returned by {@link FibersMXBean}.
*
* @author pron
*/
public class FiberInfo {
// public static FiberInfo from(CompositeData cd) {
// CompositeData[] stcd = (CompositeData[]) cd.get("stackTrace");
// StackTraceElement[] stackTrace = new StackTraceElement[stcd.length];
// for (int i = 0; i < stcd.length; i++) {
// stackTrace[i] = new StackTraceElement(
// (String)stcd[i].get("className"),
// (String)stcd[i].get("methodName"),
// (String)stcd[i].get("fileName"),
// (Integer)stcd[i].get("lineNumber"));
// }
// return new FiberInfo(
// ((Long) cd.get("id")).longValue(),
// (String) cd.get("name"),
// State.valueOf((String) cd.get("state")),
// (String) cd.get("blocker"),
// stackTrace);
// }
private final long id;
private final String name;
private final State state;
private final Object blocker;
private final String blockerName;
private final StackTraceElement[] stackTrace;
public FiberInfo(long id, String name, State state, Object blocker, StackTraceElement[] stackTrace) {
this.id = id;
this.name = name;
this.state = state;
this.blocker = blocker;
this.blockerName = null;
this.stackTrace = stackTrace;
}
@ConstructorParameters({"id", "name", "state", "blocker", "stackTrace"})
public FiberInfo(long id, String name, State state, String blockerName, StackTraceElement[] stackTrace) {
this.id = id;
this.name = name;
this.state = state;
this.blockerName = blockerName;
this.blocker = null;
this.stackTrace = stackTrace;
}
/**
* The fiber's ID.
*/
public long getId() {
return id;
}
/**
* The fiber's name.
*/
public String getName() {
return name;
}
/**
* The fiber's current {@link State state}.
*/
public State getState() {
return state;
}
// public Object getBlockerObject() {
// return blocker;
// }
/**
* The fiber's current {@link Strand#getBlocker() blocker}.
*/
public String getBlocker() {
if (blocker == null)
return blockerName;
else
return blocker.toString();
}
/**
* The fiber's current call stack.
*/
public StackTraceElement[] getStackTrace() {
return stackTrace;
}
}