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package org.gvsig.data.commands.implementation;

import org.gvsig.data.commands.AbstractCommandsRecord;

import org.gvsig.data.commands.ICommand;

import org.gvsig.data.vectorial.IFeature;

import org.gvsig.data.vectorial.IFeatureAttributeDescriptor;

import org.gvsig.data.vectorial.SpatialManager;

import org.gvsig.data.vectorial.expansionadapter.AttributeManager;

import org.gvsig.data.vectorial.expansionadapter.FeatureManager;

/**

 * Clase en memoria para registrar y gestionar los comandos que vamos

 * realizando. La forma en que ha sido implementada esta clase, en vez de una

 * ?nica lista para albergar los comandos de deshacer(undos) y los de

 * rehacer(redos), se ha optado por dos pilas una para deshacer(undos) y otra

 * para rehacer(redos), de esta forma :  Cuando se a?ade un nuevo comando, se

 * inserta este a la pila de deshacer(undos) y se borra de la de

 * rehacer(redos). Si se realiza un deshacer se desapila este comando de la

 * pila deshacer(undos) y se apila en la de rehacer(redos). Y de la misma

 * forma cuando se realiza un rehacer se desapila este comando de la pila de

 * rehacer(redos) y pasa a la de deshacer(undos).

 *

 * @author Vicente Caballero Navarro

 */

public class FeatureCommandsRecord extends AbstractCommandsRecord {

        private FeatureManager expansionManager;

        private SpatialManager spatialManager;

        private AttributeManager attributeManager;

        public FeatureCommandsRecord(FeatureManager expansionManager,SpatialManager spatialManager,AttributeManager attributeManager){

                this.expansionManager=expansionManager;

                this.spatialManager=spatialManager;

                this.attributeManager=attributeManager;

        }

        public void insert(Object obj) {

                ICommand command=null;

                if (obj instanceof IFeature){

                        IFeature feature=(IFeature)obj;

                        command=new InsertFeatureCommand(expansionManager,spatialManager, feature);

                }else if (obj instanceof IFeatureAttributeDescriptor){

                        IFeatureAttributeDescriptor attributeDescriptor=(IFeatureAttributeDescriptor)obj;

                        command=new InsertAttributeCommand(attributeManager,attributeDescriptor);

                }else{

                        throw new RuntimeException("Object not supported by any command");

                }

                add(command);

                command.execute();

        }

        public void delete(Object obj) {

                ICommand command=null;

                if (obj instanceof IFeature){

                        IFeature feature=(IFeature)obj;

                        command=new DeleteFeatureCommand(expansionManager,spatialManager, feature);

                }else if (obj instanceof IFeatureAttributeDescriptor){

                        IFeatureAttributeDescriptor attributeDescriptor=(IFeatureAttributeDescriptor)obj;

                        command=new DeleteAttributeCommand(attributeManager,attributeDescriptor);

                }else{

                        throw new RuntimeException("Object not supported by any command");

                }

                add(command);

                command.execute();

        }

        public void update(Object obj, Object oldObj) {

                ICommand command=null;

                if (obj instanceof IFeature){

                        IFeature feature=(IFeature)obj;

                        IFeature oldFeature=(IFeature)oldObj;

                        command=new UpdateFeatureCommand(expansionManager,spatialManager, feature,oldFeature);

                }else if (obj instanceof IFeatureAttributeDescriptor){

                        IFeatureAttributeDescriptor attributeDescriptor=(IFeatureAttributeDescriptor)obj;

                        IFeatureAttributeDescriptor oldAttributeDescriptor=(IFeatureAttributeDescriptor)oldObj;

                        command=new UpdateAttributeCommand(attributeManager,attributeDescriptor,oldAttributeDescriptor);

                }else{

                        throw new RuntimeException("Object not supported by any command");

                }

                add(command);

                command.execute();

        }

}