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Viewing changes to systemtap/org.eclipse.linuxtools.systemtap.ui.structures/src/org/eclipse/linuxtools/systemtap/ui/structures/UpdateManager.java

  • Committer: Package Import Robot
  • Author(s): Jakub Adam
  • Date: 2014-05-12 18:11:40 UTC
  • mfrom: (3.1.2 sid)
  • Revision ID: package-import@ubuntu.com-20140512181140-w237r3vsah1tmybz
Tags: 2.2.1-1
* New upstream release.
* Refreshed d/patches.
* Removed eclipse-cdt-valgrind-remote package, all its functionality
  is now provided by eclipse-cdt-profiling-framework-remote.
* Added remove-license-feature.patch.
* Bump Standards-Version to 3.9.5.
* Enable eclipse-changelog package.
* Enable eclipse-rpm-editor package.

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systemtap/org.eclipse.linuxtools.systemtap.ui.structures/src/org/eclipse/linuxtools/systemtap/ui/structures/UpdateManager.java
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/*******************************************************************************
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 * Copyright (c) 2006 IBM Corporation.
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 * All rights reserved. This program and the accompanying materials
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 * are made available under the terms of the Eclipse Public License v1.0
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 * which accompanies this distribution, and is available at
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 * http://www.eclipse.org/legal/epl-v10.html
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 *
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 * Contributors:
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 *     IBM Corporation - Jeff Briggs, Henry Hughes, Ryan Morse
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 *******************************************************************************/
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package org.eclipse.linuxtools.systemtap.ui.structures;
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import java.util.ArrayList;
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import java.util.Timer;
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import java.util.TimerTask;
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import org.eclipse.linuxtools.systemtap.ui.structures.listeners.IUpdateListener;
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public class UpdateManager {
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        public UpdateManager(int delay) {
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                updateListeners = new ArrayList<IUpdateListener>();
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                stopped = false;
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                disposed = false;
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                timer = new Timer("Update Manager", true);
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                timer.scheduleAtFixedRate(new Notify(), delay, delay);
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        }
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        /**
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         * Terminates the timer and removes all update listeners.
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         */
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        public void stop() {
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                if(!stopped) {
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                        stopped = true;
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                        timer.cancel();
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                        for(int i=0; i<updateListeners.size(); i++)
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                                removeUpdateListener(updateListeners.get(i));
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                }
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        }
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        public void addUpdateListener(IUpdateListener l) {
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                if(!updateListeners.contains(l))
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                        updateListeners.add(l);
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        }
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        public void removeUpdateListener(IUpdateListener l) {
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                if(updateListeners.contains(l))
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                        updateListeners.remove(l);
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        }
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        public boolean isRunning() {
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                return !stopped;
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        }
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        public void dispose() {
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                if(!disposed) {
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                        disposed = true;
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                        stop();
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                        timer = null;
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                        updateListeners = null;
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                }
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        }
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        /**
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         * Handle any events that are timed to occur.
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         */
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        private class Notify extends TimerTask {
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                @Override
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                public void run() {
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                        try{
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                        if(!stopped) {
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                                for(int i = 0; i < updateListeners.size(); i++)
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                                        (updateListeners.get(i)).handleUpdateEvent();
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                        }
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                        }catch(Exception e) {}
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                }
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        }
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        private Timer timer;
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        private ArrayList<IUpdateListener> updateListeners;
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        private boolean stopped;
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        private boolean disposed;
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}