Application: gvSIG desktop

package org.gvsig.fmap.dal.resource.file;

import java.io.File;

import org.gvsig.fmap.dal.resource.spi.AbstractResourceParameters;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dataTypes.DataTypes;

import org.gvsig.tools.dynobject.DelegatedDynObject;

import org.gvsig.tools.dynobject.DynClass;

import org.gvsig.tools.persistence.PersistenceManager;

public class FileResourceParameters extends AbstractResourceParameters {

    public static final String DYNCLASS_NAME = "FileResourceParameters";

    private static final String DYNFIELDNAME_FILE = "file";

        private DelegatedDynObject delegatedDynObject;

    public FileResourceParameters() {

                this.delegatedDynObject = (DelegatedDynObject) ToolsLocator

                                .getDynObjectManager()

                                .createDynObject(registerDynClass());

        }

        public FileResourceParameters(Object[] params) {

                this();

                // XXX puede que sobre

        setDynValue(DYNFIELDNAME_FILE, params[0]);

        }

        public FileResourceParameters(String name) {

                this();

                setDynValue(DYNFIELDNAME_FILE, name);

        }

        public String getFileName() {

                if( this.getFile()== null ) {

                        return null;

                }

                return this.getFile().getPath();

        }

        public FileResourceParameters setFileName(String fileName) {

                this.setDynValue(DYNFIELDNAME_FILE, fileName);

                return this;

        }

        public File getFile() {

                return (File) this.getDynValue(DYNFIELDNAME_FILE);

        }

        public FileResourceParameters setFile(File file) {

                this.setDynValue(DYNFIELDNAME_FILE, file);

                return this;

        }

        public FileResourceParameters setFile(String fileName) {

                this.setDynValue(DYNFIELDNAME_FILE, fileName);

                return this;

        }

        public String getTypeName() {

                return FileResource.NAME;

        }

        protected DelegatedDynObject getDelegatedDynObject() {

                return delegatedDynObject;

        }

        /**

         * Added "static synchronized" because sometimes

         * there is a "DuplicateDynClassException" when user

         * selects more than one file (SHP, for example) to be

         * added to the view. "definition" is null but then there is

         * an exception because in the meantime another thread has registered it

         * (I'm not sure this is the cause, but I cannot imagine another

         * reason)

         */

    private static synchronized DynClass registerDynClass() {

            PersistenceManager manager = ToolsLocator.getPersistenceManager();

            DynClass definition = (DynClass) manager.getDefinition(DYNCLASS_NAME);

            if( definition == null ) {

                    definition = (DynClass) manager.addDefinition(

                                    FileResourceParameters.class,

                                    DYNCLASS_NAME, 

                                    DYNCLASS_NAME+" persistence definition", 

                                    null, 

                                    null

                    );

                        definition.addDynField(DYNFIELDNAME_FILE).setType(DataTypes.FILE)

                                        .setDescription("The file");

        }

        return definition;

    }

}