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// $Id$
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/**
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* Copyright (C) 2009 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 org.apache.log4j.Level;
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import org.apache.log4j.Logger;
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/**
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* This is a console style progress monitor with prints the progress information to configured {@link Logger} with level {@link Level#INFO}
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*
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* @author a.mueller
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* @date 14.09.2010
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*
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*/
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public class DefaultProgressMonitor implements IProgressMonitor {
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private static final long serialVersionUID = 8782649283568146667L;
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private static final Logger logger = Logger.getLogger(DefaultProgressMonitor.class);
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public static final DefaultProgressMonitor NewInstance(){
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return new DefaultProgressMonitor();
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}
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private boolean isCanceled = false;
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protected String taskName = "No task name";
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protected int totalWork = 0;
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protected double workDone = 0;
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protected String subTask = "No subtask name";
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private Serializable feedback;
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private transient Object feedbackLock;
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private boolean isWaitingForFeedback = false;
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private long feedbackWaitStartTime;
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private static final long DEFAULT_FEEDBACK_WAIT_TIMEOUT = 1000 * 60 * 60 * 24; // 24 hours
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private long feedbackWaitTimeout = DEFAULT_FEEDBACK_WAIT_TIMEOUT;
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private String owner;
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protected DefaultProgressMonitor(){
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.common.IProgressMonitor#beginTask(java.lang.String, int)
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*/
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@Override
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public void beginTask(String taskName, int totalWork) {
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logger.info("Start " + taskName);
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this.taskName = taskName;
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this.totalWork = totalWork;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.common.IProgressMonitor#done()
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*/
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@Override
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public void done() {
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logger.info(taskName + "...Done");
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.common.IProgressMonitor#isCanceled()
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*/
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@Override
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public boolean isCanceled() {
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return isCanceled;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.common.IProgressMonitor#setCanceled(boolean)
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*/
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@Override
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public void setCanceled(boolean isCanceled) {
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this.isCanceled = isCanceled;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.common.IProgressMonitor#setTaskName(java.lang.String)
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*/
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@Override
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public void setTaskName(String taskName) {
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this.taskName = taskName;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.common.IProgressMonitor#subTask(java.lang.String)
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*/
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@Override
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public void subTask(String subTask) {
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this.subTask = subTask;
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logger.info(/*getPercentage() + "% done." + */ " Next Task: " + subTask);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.common.IProgressMonitor#worked(int)
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*/
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@Override
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public void worked(int work) {
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computeWorked(work);
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// this.workDone = this.workDone + work;
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}
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@Override
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public void internalWorked(double work) {
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computeWorked(work);
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// this.workDone = this.workDone + work;
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}
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private void computeWorked(double work){
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this.workDone = this.workDone + work;
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logger.info(getPercentage() + "% done (Completed Task: " + subTask + ")");
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.common.IProgressMonitor#warning(java.lang.String)
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*/
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@Override
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public void warning(String warning) {
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logger.warn(warning);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.common.IProgressMonitor#warning(java.lang.String, java.lang.Exception)
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*/
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@Override
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public void warning(String warning, Throwable exception) {
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logger.warn(warning);
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exception.printStackTrace();
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}
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public Double getPercentage(){
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if(totalWork == 0 ){
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return null;
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}
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double result = this.workDone * 100 / this.totalWork ;
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result = Math.ceil((result * 100.0)) / 100.0;
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return result;
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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 waitForFeedback() {
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if(feedbackLock == null) {
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feedbackLock = new Object();
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}
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synchronized (feedbackLock) {
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feedback = null;
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while(feedback == null) {
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isWaitingForFeedback = true;
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try {
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feedbackWaitStartTime = System.currentTimeMillis();
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feedbackLock.wait();
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} catch (InterruptedException ie) {
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throw new IllegalStateException(ie);
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}
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}
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}
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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 setFeedback(Serializable feedback) {
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synchronized (feedbackLock) {
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this.feedback = feedback;
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this.feedbackLock.notifyAll();
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isWaitingForFeedback = false;
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}
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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 Serializable getFeedback() {
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return feedback;
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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 boolean getIsWaitingForFeedback() {
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return isWaitingForFeedback;
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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 waitForFeedback(long feedbackWaitTimeout) {
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if(feedbackWaitTimeout <= 0 ) {
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throw new IllegalStateException("Feedback wait timeout should be a positive number");
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}
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this.feedbackWaitTimeout = feedbackWaitTimeout;
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waitForFeedback();
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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 boolean hasFeedbackWaitTimedOut() {
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long now = System.currentTimeMillis();
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return isWaitingForFeedback && (now - feedbackWaitStartTime > feedbackWaitTimeout);
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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 String getOwner() {
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return owner;
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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 setOwner(String owner) {
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this.owner = owner;
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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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// do nothing
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}
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}
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