root / branches / v2_0_0_prep / libraries / libUIComponent / src / org / gvsig / gui / beans / incrementabletask / IncrementableProcess.java @ 34688
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package org.gvsig.gui.beans.incrementabletask; |
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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import java.awt.event.MouseAdapter; |
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import java.awt.event.MouseEvent; |
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import javax.swing.JButton; |
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import javax.swing.JOptionPane; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.gui.beans.Messages; |
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import org.gvsig.gui.beans.buttonspanel.ButtonsPanel; |
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import org.gvsig.gui.beans.progresspanel.LogControl; |
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/**
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* Process to be executed by an {@link IncrementableTask IncrementableTask}.
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*
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* @version 20/08/2008
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*
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* @author Pablo Piqueras Bartolom? (pablo.piqueras@iver.es)
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*/
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public abstract class IncrementableProcess implements IIncrementable, IncrementableListener, Runnable { |
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private static final Logger LOG = LoggerFactory |
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.getLogger(IncrementableProcess.class); |
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protected IncrementableTask iTask = null; |
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protected LogControl log = new LogControl(); |
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protected int percentage = 0; |
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protected boolean ended = false; |
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protected volatile boolean threadSuspended = false; |
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protected volatile Thread blinker = null; |
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protected long t0 = 0; |
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protected static Cancellable cancelProcess = null; |
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protected boolean isCancellable = true; |
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protected boolean isPausable = false; |
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protected String title = ""; |
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protected String label = ""; |
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/**
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* Creates a new process.
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*
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* @param title title for the dialog that displays the evolution of the process
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*/
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public IncrementableProcess(String title) { |
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super();
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this.title = title;
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this.cancelProcess = new Cancel(); |
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} |
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/**
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* Creates a new process.
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*
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* @param title title for the dialog that displays the evolution of the process
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* @param label brief of this process, that will be displayed in the dialog
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*/
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public IncrementableProcess(String title, String label) { |
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super();
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this.title = title;
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this.label = label;
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this.cancelProcess = new Cancel(); |
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} |
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/**
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* Creates a new process.
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*
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* @param title title for the dialog that displays the evolution of the process
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* @param label brief of this process, that will be displayed in the dialog
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* @param cancellable determines if this process can be canceled
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* @param pausable determines if this process can be paused
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*/
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public IncrementableProcess(String title, String label, boolean cancellable, boolean pausable) { |
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super();
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this.title = title;
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this.label = label;
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this.cancelProcess = new Cancel(); |
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this.isCancellable = cancellable;
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this.isPausable = pausable;
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} |
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/*
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* (non-Javadoc)
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*
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* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getTitle()
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*/
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public String getTitle() { |
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return title;
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} |
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/**
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* Adds a new line to the log.
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*
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* @param line
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* the line to add
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*/
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protected void insertLineLog(String line) { |
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log.addLine(line); |
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} |
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/*
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* (non-Javadoc)
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*
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* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getLabel()
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*/
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public String getLabel() { |
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return label;
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} |
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/**
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* <p>Sets a brief of the current subprocess.</p>
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*
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* @param label brief of the current subprocess
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*/
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public void setLabel(String label) { |
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this.label = label;
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} |
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/*
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* (non-Javadoc)
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*
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* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getLog()
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*/
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public String getLog() { |
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return log.getText();
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} |
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/*
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* (non-Javadoc)
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*
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* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getPercent()
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*/
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public int getPercent() { |
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if (percentage > 100) |
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percentage = 100;
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if (percentage == 100) |
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ended = true;
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return percentage;
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} |
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/**
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* Creates and starts a new thread to execute this importation process.
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*
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* @see Thread#start()
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* @see #stop()
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*/
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public void start() { |
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blinker = new Thread(this); |
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blinker.start(); |
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} |
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/**
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* @see Thread#stop()
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* @see #start()
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*/
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public synchronized void stop() { |
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ended = true;
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blinker = null;
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notify(); |
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} |
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/**
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* @see Thread#isAlive()
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* @see #start()
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*/
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public boolean isAlive() { |
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return blinker.isAlive();
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} |
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/**
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* Ends the thread that displays the progress dialog with the evolution of
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* the loading process.
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*
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* @see IncrementableTask#processFinalize()
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*/
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protected void processFinalize() { |
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iTask.processFinalize(); |
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} |
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/**
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* Sets the object that will display the evolution of this loading process
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* as a progress dialog.
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*
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* @param iTask
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* the object that will display the evolution of this loading
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* process
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*/
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public void setIncrementableTask(IncrementableTask iTask) { |
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this.iTask = iTask;
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iTask.setAskCancel(true);
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iTask.getButtonsPanel().addAccept(); |
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iTask.getButtonsPanel().setEnabled(ButtonsPanel.BUTTON_ACCEPT, false);
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JButton jButton = iTask.getButtonsPanel().getButton(
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ButtonsPanel.BUTTON_ACCEPT); |
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jButton.addMouseListener(new MouseAdapter() { |
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/*
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* (non-Javadoc)
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*
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* @see java.awt.event.MouseListener#mouseClicked(java.awt.event.MouseEvent)
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*/
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public void mouseClicked(MouseEvent e) { |
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processFinalize(); |
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} |
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}); |
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} |
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/**
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* Determines if this thread has been suspended.
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*
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* @return <code>true</code> if this thread has been suspended; otherwise <code>false</code>
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*/
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public boolean isSuspended() { |
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return threadSuspended;
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} |
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/*
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* (non-Javadoc)
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* @see java.lang.Runnable#run()
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*/
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public void run() { |
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String text = null; |
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try {
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process(); |
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while (! ended) {
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t0 += 500;
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Thread.currentThread().sleep(150); |
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} |
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} catch (Exception ie) { |
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if (! cancelProcess.isCanceled()) {
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LOG.error("", ie);
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label = Messages.getText("Process_failed");
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iTask.getProgressPanel().setLabel(label); |
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text = Messages.getText("Failed_the_process");
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} |
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else {
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label = Messages.getText("Process_canceled");
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iTask.getProgressPanel().setLabel(label); |
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text = Messages.getText("Process_canceled");
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} |
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} |
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finally {
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iTask.setAskCancel(false);
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iTask.getButtonsPanel().setEnabled(ButtonsPanel.BUTTON_ACCEPT, true);
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iTask.getButtonsPanel().setEnabled(ButtonsPanel.BUTTON_CANCEL, false);
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if (text != null) { |
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log.addLine(Messages.getText("Percent") + ": " + getPercent()); |
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log.addLine(text); |
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if (cancelProcess.isCanceled())
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JOptionPane.showMessageDialog(iTask.getButtonsPanel(), text, Messages.getText("Information"), JOptionPane.INFORMATION_MESSAGE); |
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else
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JOptionPane.showMessageDialog(iTask.getButtonsPanel(), text, Messages.getText("Error"), JOptionPane.ERROR_MESSAGE); |
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} |
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if (percentage == 100) { |
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label = Messages.getText("Process_finished");
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iTask.getProgressPanel().setLabel(label); |
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// iTask.getProgressPanel().setPercent(100); // Forces setting the progress bar at 100 %
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} |
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// Ends this process
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ended = true;
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// Ends the progress panel
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iTask.stop(); |
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} |
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} |
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/*
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* (non-Javadoc)
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*
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* @see org.gvsig.gui.beans.incrementabletask.IncrementableListener#actionCanceled(org.gvsig.gui.beans.incrementabletask.IncrementableEvent)
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*/
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public void actionCanceled(IncrementableEvent e) { |
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if (percentage < 100) { |
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// If was cancelled
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if (ended == true) |
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processFinalize(); |
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if (isCancellable)
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cancelProcess.setCanceled(true);
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else
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JOptionPane.showMessageDialog(null, Messages.getText("The_process_cant_be_cancelled"), Messages.getText("Warning"), JOptionPane.WARNING_MESSAGE); |
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} |
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else {
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LOG.warn(Messages.getText("Process_finished_wont_be_cancelled"));
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processFinalize(); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.gui.beans.incrementabletask.IncrementableListener#actionResumed(org.gvsig.gui.beans.incrementabletask.IncrementableEvent)
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*/
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public void actionResumed(IncrementableEvent e) { |
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// if (isPausable)
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// resume();
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if ((isPausable) && (threadSuspended)) {
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threadSuspended = false;
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blinker.resume(); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.gui.beans.incrementabletask.IncrementableListener#actionSuspended(org.gvsig.gui.beans.incrementabletask.IncrementableEvent)
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*/
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public void actionSuspended(IncrementableEvent e) { |
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try {
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if (isPausable) {
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if ( ! threadSuspended) {
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threadSuspended = true;
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blinker.suspend(); |
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} |
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} |
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// if (isPausable)
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// suspend();
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else
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JOptionPane.showMessageDialog(null, Messages.getText("The_process_cant_be_paused"), Messages.getText("Warning"), JOptionPane.WARNING_MESSAGE); |
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} |
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catch (Exception iex) { |
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LOG.error("", iex);
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JOptionPane.showMessageDialog(null, Messages.getText("Failed_pausing_the_process"), Messages.getText("Error"), JOptionPane.ERROR_MESSAGE); |
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#isCancelable()
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*/
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public boolean isCancelable() { |
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return isCancellable;
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} |
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/**
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* <p>Sets if this process can be canceled.</p>
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*
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* @param b <code>true</code> if this process can be canceled, otherwise <code>false</code>
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*/
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public void setCancelable(boolean b) { |
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isCancellable = b; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#isPausable()
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*/
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public boolean isPausable() { |
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return isPausable;
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} |
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/**
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* <p>Sets if this process can be paused.</p>
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*
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* @param b <code>true</code> if this process can be paused, otherwise <code>false</code>
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*/
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public void setPausable(boolean b) { |
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isPausable = b; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#process()
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*/
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public abstract void process() throws InterruptedException, Exception; |
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} |