gvsig-raster / org.gvsig.raster.tools / trunk / org.gvsig.raster.tools / org.gvsig.raster.tools.algorithm / org.gvsig.raster.tools.algorithm.base / src / main / java / org / gvsig / raster / tools / algorithm / base / process / RasterProcess.java @ 1747
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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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package org.gvsig.raster.tools.algorithm.base.process; |
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import java.awt.Component; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.util.ArrayList; |
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import java.util.Hashtable; |
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import javax.swing.JOptionPane; |
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import org.gvsig.fmap.dal.coverage.RasterLocator; |
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import org.gvsig.fmap.dal.coverage.RasterManager; |
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import org.gvsig.fmap.dal.coverage.dataset.Buffer; |
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import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
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import org.gvsig.fmap.dal.coverage.datastruct.Params; |
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
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import org.gvsig.fmap.dal.coverage.process.CancelEvent; |
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import org.gvsig.fmap.dal.coverage.process.TaskEventManager; |
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import org.gvsig.fmap.dal.coverage.store.DataServerWriter; |
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import org.gvsig.fmap.dal.coverage.store.RasterDataStore; |
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import org.gvsig.fmap.dal.coverage.store.RasterWriter; |
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import org.gvsig.gui.beans.buttonspanel.ButtonsPanel; |
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import org.gvsig.gui.beans.incrementabletask.IIncrementable; |
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import org.gvsig.gui.beans.incrementabletask.IncrementableEvent; |
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import org.gvsig.gui.beans.incrementabletask.IncrementableListener; |
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import org.gvsig.gui.beans.incrementabletask.IncrementableTask; |
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import org.gvsig.i18n.Messages; |
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import org.gvsig.tools.dispose.Disposable; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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* Clase base de todos los procesos raster. En ella se genstionan todas las
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* funciones comunes como incremento de la tarea, gesti?n de eventos a la tarea,
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* par?metros de la tarea, etc ...
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*
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* 18/12/2007
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* @author Nacho Brodin nachobrodin@gmail.com
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*/
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public abstract class RasterProcess implements IIncrementable, IncrementableListener, Runnable, Disposable { |
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protected IncrementableTask incrementableTask = null; |
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protected volatile Thread blinker = null; |
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protected TaskEventManager taskEventManager = null; |
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protected IProcessActions externalActions = null; |
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protected Hashtable<String, Object> |
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taskParams = new Hashtable<String, Object>(); |
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private String log = ""; |
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private String lastLine = ""; |
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private long time = 0; |
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private boolean progressActive = true; |
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private IProcessActions queueActions = null; |
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private Logger logger = LoggerFactory.getLogger(RasterProcess.class.toString()); |
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protected int percent = 0; |
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/**
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* Crea la ventana de IncrementableTask
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*/
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public IncrementableTask getIncrementableTask() {
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if (incrementableTask == null) { |
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incrementableTask = new IncrementableTask(this); |
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incrementableTask.addIncrementableListener(this);
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} |
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return incrementableTask;
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} |
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/**
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* Define si se puede cancelar el proceso. Por defecto es true.
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* @param enabled
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*/
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public void setCancelable(boolean enabled) { |
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getIncrementableTask().getButtonsPanel().setEnabled(ButtonsPanel.BUTTON_CANCEL, enabled); |
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} |
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/**
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* Muestra la ventana de IncrementableTask
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*/
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public void showIncrementableWindow() { |
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if (progressActive) {
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getIncrementableTask().showWindow(); |
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getIncrementableTask().start(); |
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} |
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} |
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/**
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* Arranca el proceso de recorte de un layer
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*/
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public void start() { |
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showIncrementableWindow(); |
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if(blinker == null) |
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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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* Proceso de carga de par?metros. Puede no hacerse una carga de par?metros
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* explicita y obtenerlos directamente de la tabla Hash cuando vayan a usarse.
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* Esto queda a elecci?n del programador. En caso de hacerse una carga de par?metros
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* explicita esta llamada deber?a hacerse justo despues del constructor de la clase
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* que contendr? el proceso.
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*/
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public abstract void init(); |
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/**
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* Proceso
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* @throws InterruptedException
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*/
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public abstract void process() throws ProcessInterruptedException, ProcessException; |
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/**
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* Obtenci?n de un objeto de resultado. Este objeto deber? ser el mismo que el que se
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* pasa por par?metro en el "end" de IProcessActions. Este m?todo es util cuando la tarea no se
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* lanza en un Thread (ejecutamos process directamente) y queremos recoger el resultado
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* sin registrarnos al evento de finalizaci?n de tarea.
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* @return objeto resultado de la tarea
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*/
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public Object getResult() { |
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return null; |
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} |
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/**
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* Proceso
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* @throws ProcessException
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*/
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public void execute() throws ProcessInterruptedException, ProcessException { |
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init(); |
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process(); |
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} |
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/**
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* M?todo donde se ejecutar? el Thread. Este har? las acciones globales para
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* cualquier tarea y llamar? al m?todo execute especifico de una tarea.
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*/
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public void run() { |
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long t1 = new java.util.Date().getTime(); |
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try {
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taskEventManager = RasterLocator.getManager().createRasterTask(this);
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execute(); |
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} catch (ProcessInterruptedException e) {
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if (externalActions != null) |
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externalActions.interrupted(); |
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Thread.currentThread().interrupt();
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} catch (ProcessException e) {
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if (progressActive) {
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if (incrementableTask != null) { |
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getIncrementableTask().processFinalize(); |
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incrementableTask = null;
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} |
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} |
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logger.warn(RasterLocator.getManager().getRasterUtils().getTrace(e)); |
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if(e.getMessage() != null && e.getMessage().compareTo("") != 0) |
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messageBoxError(e.getMessage(), this);
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else
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messageBoxError("error_processing", this); |
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queueActions = null;
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} catch (Exception e) { |
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if (progressActive) {
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if (incrementableTask != null) { |
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getIncrementableTask().processFinalize(); |
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incrementableTask = null;
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} |
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} |
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logger.warn(RasterLocator.getManager().getRasterUtils().getTrace(e)); |
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if(e.getMessage() != null && e.getMessage().compareTo("") != 0) |
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messageBoxError(e.getMessage(), null);
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else
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messageBoxError("error_processing", null); |
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queueActions = null;
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} finally {
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taskEventManager.removeTask(); |
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if (progressActive) {
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if (incrementableTask != null) |
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getIncrementableTask().processFinalize(); |
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} |
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if (queueActions != null) |
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queueActions.end(this);
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time = new java.util.Date().getTime() - t1;
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blinker = null;
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} |
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} |
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/**
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* Activa o desactiva el interfaz de progreso en el lanzamiento de la tarea como un thread.
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* @param active true para activarlo o false para desactivarlo
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*/
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public void setProgressActive(boolean active) { |
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this.progressActive = active;
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} |
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/**
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* Obtiene el tiempo que tard? en ejecutarse la tarea
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* la ?ltima vez que se proces?
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*/
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public long getTime() { |
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return time;
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} |
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/**
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* Obtiene el objeto para ejecutar acciones externar.
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* @param IProcessActions
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*/
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public IProcessActions getActions() {
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return externalActions;
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} |
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/**
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* Asigna el objeto para ejecutar acciones externar.
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* @param IProcessActions
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*/
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public void setActions(IProcessActions actions) { |
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this.externalActions = actions;
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} |
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/**
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* Obtiene el objeto para ejecutar acciones de la cola de procesos de ejecuci?n exclusiva.
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* @param IProcessActions
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*/
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public IProcessActions getUniqueProcessActions() {
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return queueActions;
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} |
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/**
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* Asigna el objeto para ejecutar acciones externar.
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* @param IProcessActions
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*/
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public void setUniqueProcessActions(IProcessActions actions) { |
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this.queueActions = actions;
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} |
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/**
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* Inserta una nueva l?nea en el log del cuadro de incremento de tarea
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* @param line
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*/
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protected void insertLineLog(String line) { |
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lastLine = line; |
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log = log + line + "\n";
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} |
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/**
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* Obtiene la ?ltima l?nea introducida en el log del cuadro de incremento.
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*/
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public String getLabel() { |
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return lastLine;
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} |
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/**
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* Obtiene el texto de log del cuadro de incremento completo.
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*/
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public String getLog() { |
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return log;
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} |
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/**
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* Un evento de cancelado es enviado a la tarea cuando actionCanceled es activado. Para
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* ello se crear? un objeto CancelEvent y se asignar? a la tarea en ejecuci?n. Esta lo
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* procesar? cuando pueda e interrumpir? el proceso.
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*/
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public void actionCanceled(IncrementableEvent e) { |
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taskEventManager.setEvent(new CancelEvent(this)); |
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} |
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/**
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* A?ade un par?metro a la tarea
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* @param name Clave del par?metro
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* @param param Objeto pasado como par?metro
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*/
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public void addParam(String name, Object param) { |
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if (param != null) |
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taskParams.put(name, param); |
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else
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taskParams.remove(name); |
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} |
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/**
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* Elimina un par?metro de la tarea
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* @param name Clave del par?metro a eliminar
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*/
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public void removeParam(String name) { |
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taskParams.remove(name); |
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} |
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/**
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* Obtiene un par?metro a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public Object getParam(String name) { |
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return taskParams.get(name);
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} |
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/**
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* Obtiene un par?metro String a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public String getStringParam(String name) { |
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Object value = taskParams.get(name);
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return (value != null && value instanceof String) ? (String)value : null; |
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} |
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/**
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* Obtiene un par?metro byte a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public byte getByteParam(String name) { |
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Object value = taskParams.get(name);
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return (value != null && value instanceof Byte) ? ((Byte)value).byteValue() : 0; |
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} |
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/**
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* Obtiene un par?metro float a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public float getFloatParam(String name) { |
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Object value = taskParams.get(name);
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return (value != null && value instanceof Float) ? ((Float)value).floatValue() : 0F; |
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} |
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/**
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* Obtiene un par?metro double a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public double getDoubleParam(String name) { |
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Object value = taskParams.get(name);
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return (value != null && value instanceof Double) ? ((Double)value).doubleValue() : 0D; |
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} |
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/**
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* Obtiene un par?metro entero a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public int getIntParam(String name) { |
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Object value = taskParams.get(name);
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return (value != null && value instanceof Integer) ? ((Integer)value).intValue() : 0; |
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} |
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/**
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* Obtiene un par?metro boolean a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public boolean getBooleanParam(String name) { |
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Object value = taskParams.get(name);
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return (value != null && value instanceof Boolean) ? ((Boolean)value).booleanValue() : false; |
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} |
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/**
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* Obtiene un par?metro int[] a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public int[] getIntArrayParam(String name) { |
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Object value = taskParams.get(name);
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return (value != null && value instanceof int[]) ? ((int[])value) : null; |
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} |
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/**
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* Obtiene un par?metro double[] a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public double[] getDoubleArrayParam(String name) { |
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Object value = taskParams.get(name);
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return (value != null && value instanceof double[]) ? ((double[])value) : null; |
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} |
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|
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/**
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* Obtiene un par?metro extent a partir de la clave
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* @param name Par?metro
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* @return Par?metro
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*/
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public Extent getExtentParam(String name) { |
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Object value = taskParams.get(name);
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return (value != null && value instanceof Extent) ? ((Extent)value) : null; |
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} |
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|
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/**
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* Updates the percentaje of progress and manages the cancelation
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* @param parcial
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* @param total
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* @throws ProcessInterruptedException
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*/
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public void updatePercent(int parcial, int total) throws ProcessInterruptedException { |
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if (taskEventManager.getEvent() != null) |
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taskEventManager.manageEvent(taskEventManager.getEvent()); |
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percent = (int)((parcial * 100) / total); |
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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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} |
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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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} |
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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 true; |
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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#isPausable()
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*/
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public boolean isPausable() { |
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return false; |
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} |
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|
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/**
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* Registra un mensaje de error en el log de gvSIG
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* @param msg Mensaje a guardar en el log
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* @param parent Objeto que hizo disparar el mensaje
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* @param exception Excepcion que ha sido recogida
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*/
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public static void debug(String msg, Object parent, Exception exception) { |
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if(parent != null) |
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LoggerFactory |
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.getLogger(parent.getClass()).debug(Messages.getText(msg), exception); |
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} |
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|
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public void dispose() { |
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try {
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finalize(); |
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} catch (Throwable e) { |
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} |
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} |
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|
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/*
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* (non-Javadoc)
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* @see java.lang.Object#finalize()
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*/
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@Override
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protected void finalize() throws Throwable { |
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incrementableTask = null;
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blinker = null;
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externalActions = null;
|
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if(taskParams != null) { |
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taskParams.clear(); |
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taskParams = null;
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} |
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log = null;
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| 479 |
lastLine = null;
|
| 480 |
queueActions = null;
|
| 481 |
logger = null;
|
| 482 |
super.finalize();
|
| 483 |
} |
| 484 |
|
| 485 |
/**
|
| 486 |
* Shows a error dialog with a text and a accept button
|
| 487 |
* @param msg Message to show in the dialog
|
| 488 |
* @param parentWindow Parent window
|
| 489 |
*/
|
| 490 |
public static void messageBoxError(String msg, Object parentWindow){ |
| 491 |
String string = Messages.getText("accept"); |
| 492 |
Object[] options = {string}; |
| 493 |
JOptionPane.showOptionDialog((Component)parentWindow, |
| 494 |
"<html>" + Messages.getText(msg).replaceAll("\n", "<br>") + "</html>", |
| 495 |
Messages.getText("confirmacion"),
|
| 496 |
JOptionPane.OK_OPTION,
|
| 497 |
JOptionPane.ERROR_MESSAGE,
|
| 498 |
null,
|
| 499 |
options, |
| 500 |
string); |
| 501 |
} |
| 502 |
|
| 503 |
/**
|
| 504 |
* Muestra un dialogo de error con un texto y un bot?n de aceptar. El error es
|
| 505 |
* registrado en el log de gvSIG con la excepcion que se le pase por parametro
|
| 506 |
* @param msg Mensaje a mostrar en el dialogo.
|
| 507 |
* @param parentWindow Ventana desde la que se lanza el dialogo
|
| 508 |
* @param exception Excepcion que ha sido recogida
|
| 509 |
*/
|
| 510 |
public static void messageBoxError(String msg, Object parentWindow, Exception exception) { |
| 511 |
debug(msg, parentWindow, exception); |
| 512 |
messageBoxError(msg, parentWindow); |
| 513 |
} |
| 514 |
|
| 515 |
/**
|
| 516 |
* Muestra un dialogo de error con un texto y un bot?n de aceptar. Se le pasa como ?ltimo par?metros
|
| 517 |
* una lista de excepciones que ser?n guardadas en el log
|
| 518 |
* @param msg Mensaje a mostrar en el dialogo.
|
| 519 |
* @param parentWindow Ventana desde la que se lanza el dialogo
|
| 520 |
* @param exception Excepcion que ha sido recogida
|
| 521 |
*/
|
| 522 |
public static void messageBoxError(String msg, Object parentWindow, ArrayList<Exception> exception) { |
| 523 |
for (int i = 0; i < exception.size(); i++) |
| 524 |
debug(msg, parentWindow, exception.get(i)); |
| 525 |
messageBoxError(msg, parentWindow); |
| 526 |
} |
| 527 |
|
| 528 |
/**
|
| 529 |
* Exports a raster buffer to disk
|
| 530 |
* @param sFilename
|
| 531 |
* @param buf
|
| 532 |
* @param cellsize
|
| 533 |
* @param minX
|
| 534 |
* @param minY
|
| 535 |
* @return
|
| 536 |
*/
|
| 537 |
public boolean exportRaster(final String sFilename, Buffer buf, double cellsize, double minX, double minY) { |
| 538 |
|
| 539 |
try {
|
| 540 |
RasterManager manager = RasterLocator.getManager(); |
| 541 |
final DataServerWriter writerBufferServer =
|
| 542 |
manager.createDataServerWriter(); |
| 543 |
writerBufferServer.setBuffer(buf, -1);
|
| 544 |
final Params params = manager.createWriterParams(sFilename);
|
| 545 |
final AffineTransform affineTransform = |
| 546 |
new AffineTransform(cellsize, 0, 0, |
| 547 |
-cellsize, minX, minY); |
| 548 |
|
| 549 |
final RasterWriter writer =
|
| 550 |
manager.createWriter(writerBufferServer, sFilename, |
| 551 |
buf.getBandCount(), affineTransform, buf.getWidth(), |
| 552 |
buf.getHeight(), buf.getDataType(), params, null);
|
| 553 |
writer.dataWrite(); |
| 554 |
writer.writeClose(); |
| 555 |
|
| 556 |
} catch (final Exception e) { |
| 557 |
e.printStackTrace(); |
| 558 |
return false; |
| 559 |
} |
| 560 |
|
| 561 |
return true; |
| 562 |
|
| 563 |
} |
| 564 |
|
| 565 |
/**
|
| 566 |
* Gets a list of rectangles which represents the pixel coordinates of each DataStore.
|
| 567 |
* This rectangle is the area that intersects with the other DataStores in the list.
|
| 568 |
* @param dataStoreList
|
| 569 |
* @return
|
| 570 |
*/
|
| 571 |
protected Rectangle2D[] getIntersectionInPxCoords(RasterDataStore[] dataStoreList) { |
| 572 |
Extent extentIntersect = null;
|
| 573 |
int nRectangles = 0; |
| 574 |
for (int i = 0; i < dataStoreList.length; i++) { |
| 575 |
if(dataStoreList[i] != null) { |
| 576 |
if(extentIntersect == null) |
| 577 |
extentIntersect = dataStoreList[i].getExtent(); |
| 578 |
else
|
| 579 |
extentIntersect = extentIntersect.intersection(dataStoreList[i].getExtent()); |
| 580 |
nRectangles ++; |
| 581 |
} |
| 582 |
} |
| 583 |
Rectangle2D[] result = new Rectangle2D[nRectangles]; |
| 584 |
|
| 585 |
Point2D p1 = new Point2D.Double(extentIntersect.getULX(), extentIntersect.getULY()); |
| 586 |
Point2D p2 = new Point2D.Double(extentIntersect.getLRX(), extentIntersect.getLRY()); |
| 587 |
|
| 588 |
int cont = 0; |
| 589 |
for (int i = 0; i < dataStoreList.length; i++) { |
| 590 |
if(dataStoreList[i] != null) { |
| 591 |
Point2D init = dataStoreList[i].worldToRaster(p1);
|
| 592 |
Point2D end = dataStoreList[i].worldToRaster(p2);
|
| 593 |
result[cont] = new Rectangle2D.Double( |
| 594 |
init.getX(), |
| 595 |
init.getY(), |
| 596 |
Math.abs(end.getX() - init.getX()),
|
| 597 |
Math.abs(end.getY() - init.getY()));
|
| 598 |
cont++; |
| 599 |
} |
| 600 |
} |
| 601 |
return result;
|
| 602 |
} |
| 603 |
} |