/*
* MainTask.java
* Copyright (C) 2007 University of Waikato, Hamilton, New Zealand
* @author Richard Kirkby (rkirkby@cs.waikato.ac.nz)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package tr.gov.ulakbim.jDenetX.tasks;
import tr.gov.ulakbim.jDenetX.core.ObjectRepository;
import tr.gov.ulakbim.jDenetX.core.SerializeUtils;
import tr.gov.ulakbim.jDenetX.options.FileOption;
import java.io.File;
import java.io.IOException;
import java.io.Serializable;
public abstract class MainTask extends AbstractTask {
private static final long serialVersionUID = 1L;
protected static final int INSTANCES_BETWEEN_MONITOR_UPDATES = 10;
public FileOption outputFileOption = new FileOption("taskResultFile", 'O',
"File to save the final result of the task to.", null, "moa", true);
@Override
protected Object doTaskImpl(TaskMonitor monitor, ObjectRepository repository) {
Object result = doMainTask(monitor, repository);
if (monitor.taskShouldAbort()) {
return null;
}
File outputFile = this.outputFileOption.getFile();
if (outputFile != null) {
if (result instanceof Serializable) {
monitor.setCurrentActivity("Saving result of task "
+ getTaskName() + " to file " + outputFile + "...",
-1.0);
try {
SerializeUtils.writeToFile(outputFile,
(Serializable) result);
} catch (IOException ioe) {
throw new RuntimeException("Failed writing result of task "
+ getTaskName() + " to file " + outputFile, ioe);
}
} else {
throw new RuntimeException("Result of task " + getTaskName()
+ " is not serializable, so cannot be written to file "
+ outputFile);
}
}
return result;
}
protected abstract Object doMainTask(TaskMonitor monitor,
ObjectRepository repository);
}