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/**
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* Copyright (C) 2015 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.common.monitor;
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import java.io.Serializable;
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import java.util.concurrent.ConcurrentHashMap;
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import org.apache.log4j.Logger;
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/**
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* Thread class to be used to run monitored jobs
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*
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* @author cmathew
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* @since 22 Oct 2015
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*
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*/
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public abstract class RemotingProgressMonitorThread extends Thread {
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private static ConcurrentHashMap<IRemotingProgressMonitor, RemotingProgressMonitorThread> monitorsInProgress =
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new ConcurrentHashMap<IRemotingProgressMonitor, RemotingProgressMonitorThread>();
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private IRemotingProgressMonitor monitor;
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private static final Logger logger = Logger.getLogger(RemotingProgressMonitorThread.class);
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public void setMonitor(IRemotingProgressMonitor monitor) {
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if(monitor == null) {
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throw new IllegalStateException("Monitor is null");
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}
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this.monitor = monitor;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void run() {
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try {
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monitorsInProgress.put(monitor, this);
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monitor.setResult(doRun(monitor));
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} catch(Exception ex) {
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logger.info("Exception in RemotingProgressMonitorThread ", ex);
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monitor.setResult(ex);
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monitor.setIsFailed(true);
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}
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monitor.done();
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monitorsInProgress.remove(monitor);
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}
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/**
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* Executes the monitored job.
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*
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* @param monitor to be updated by the monitored job
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* @return result object
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*/
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public abstract Serializable doRun(IRemotingProgressMonitor monitor);
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/**
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* Returns a currently running monitor thread corresponding to the
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* given monitor.
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*
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* @param monitor for which the thread
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* @return
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*/
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protected static RemotingProgressMonitorThread getMonitorThread(IRemotingProgressMonitor monitor) {
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return monitorsInProgress.get(monitor);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void interrupt() {
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super.interrupt();
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monitor.setCanceled(true);
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monitor.done();
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monitorsInProgress.remove(monitor);
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}
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}
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