Application: gvSIG desktop » gvSIG raster

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * 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., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.raster.impl.process;

import java.util.ArrayList;

import java.util.EventObject;

import java.util.TreeMap;

/**

 * Clase donde se registran todos los procesos raster para poder ser accedidos por distintos

 * objetos y puedan mandarles se?ales.

 * 

 * @version 30/08/2007

 * @author Nacho Brodin (nachobrodin@gmail.com)

 *

 */

public class RasterTaskQueue {

        private static TreeMap<String, RasterTask> processPool = new TreeMap<String, RasterTask>();

        private static ArrayList<String>           processID   = new ArrayList<String>();

        /**

         * Registra procesos para que puedan ser accedidos

         * @param id Identificador del proceso

         * @param process Proceso

         */

        public static void register(RasterTask process) {

                processPool.put(process.getID(), process);

                processID.add(process.getID());

        }        

        /**

         * Saca un proceso del repositorio

         * @param id Identificador del proceso.

         */

        public static void remove(RasterTask process) {

                processPool.remove(process.getID());

                for (int i = 0; i < processID.size(); i++) {

                        if(((String)processID.get(i)).compareTo(process.getID()) == 0) {

                                processID.remove(i);

                                break;

                        }

                }

        }

        /**

         * Gets a process from its identifier. If the object is null, this method will create a new RasterTask

         * @param id Process identifier

         * @return Process

         */

        public static RasterTask get(String id) {

                return ((RasterTask)processPool.get(id) == null) ? new RasterTask(null) : (RasterTask)processPool.get(id);

        }

        /**

         * Gets a process from its identifier

         * @param id Process identifier

         * @return Process

         */

        public static RasterTask getRasterTask(String id) {

                return (RasterTask)processPool.get(id);

        }

        /**

         * Envia un evento al proceso cuyo id coincide con el par?metro

         * @param id Identificador del proceso

         * @param ev Evento

         */

        public static void sendSignal(String id, EventObject ev) {

                Object obj = processPool.get(id);

                if(obj != null && obj instanceof RasterTask) 

                        ((RasterTask)obj).setEvent(ev);

        }

        /**

         * Envia un evento a todos los procesos

         * @param id Identificador del proceso

         * @param ev Evento

         */

        public static void sendSignal(EventObject ev) {

                for (int i = 0; i < processID.size(); i++) {

                        String id = (String)processID.get(i);

                        sendSignal(id, ev);

                }

        }

}