Application: gvSIG desktop

package org.gvsig.fmap.data.feature.file;

import java.io.File;

import java.util.HashMap;

import java.util.Map;

import org.gvsig.fmap.data.AbstractDataExplorerParameters;

import org.gvsig.fmap.data.DataManager;

import org.gvsig.fmap.data.DataStoreParameters;

import org.gvsig.fmap.data.InitializeException;

import com.iver.utiles.NotExistInXMLEntity;

import com.iver.utiles.XMLEntity;

public abstract class FileExplorerParameters extends

                AbstractDataExplorerParameters {

        private Map internalMap;

        protected File source;

        public void setSource(File source){

                this.source = source;

                this.clearInternalMap();

        }

        public File getSource(){

                return this.source;

        }

        public XMLEntity getXMLEntity() {

                XMLEntity entity = super.getXMLEntity();

                entity.putProperty("source", source.getPath());

                return entity;

        }

        public void loadFromXMLEntity(XMLEntity xmlEntity)

                        throws InitializeException {

                try {

                        this.source = new File(xmlEntity.getStringProperty("source"));

                } catch (NotExistInXMLEntity e) {

                        throw new InitializeException("source property not set", this

                                        .getDataExplorerName());

                }

        }

        public DataStoreParameters newStoreParameters() throws InitializeException {

                return DataManager.getManager().createDataStoreParameters(

                                this.getXMLEntity());

        }

        public void clear() {

                this.source = null;

                this.clearInternalMap();

        }

        protected Map getInternalMap() {

                if (this.internalMap == null) {

                        this.internalMap = new HashMap(1);

                }

                if (this.internalMap.size() == 0) {

                        this.internalMap.put("source", this.source);

                }

                return this.internalMap;

        }

        public Object put(Object key, Object value) {

                if (!(key instanceof String)) {

                        throw new ClassCastException("key must be String");

                }

                String sKey = (String) key;

                Object rValue = null;

                if (sKey.equalsIgnoreCase("source")) {

                        rValue = this.source;

                        this.source = (File) value;

                } else {

                        throw new IllegalArgumentException("key:" + sKey);

                }

                this.clearInternalMap();

                return rValue;

        }

        protected void clearInternalMap() {

                if (this.internalMap != null) {

                        this.internalMap.clear();

                }

        }

}