Application: gvSIG desktop

package org.gvsig.data.datastores.vectorial.file.dgn;

import java.io.File;

import java.util.ArrayList;

import org.gvsig.data.DataException;

import org.gvsig.data.IDataExplorerParameters;

import org.gvsig.data.IDataStoreParameters;

import org.gvsig.data.ReadException;

import org.gvsig.data.datastores.vectorial.file.FileExplorer;

import org.gvsig.data.datastores.vectorial.file.FileNotFoundException;

import org.gvsig.data.vectorial.IFeatureType;

public class DGNDataExplorer extends FileExplorer {

    public static String DATASOURCE_NAME="DGNDataExplorer";

        protected DGNDataExplorerParameters parameters;

        protected File path;

        public IDataStoreParameters[] list() throws ReadException {

                if (!this.path.exists()){

                        new FileNotFoundException(this.getName()+": Path not found '"+this.path+"'",new Exception());

                }

//                DataManager dsm=DataManager.getManager();

                String files[] = this.path.list();

                int i;

                File theFile;

                ArrayList fileList = new ArrayList();

                IDataStoreParameters dsp = null;

                for (i=0;i<files.length;i++){

                        theFile = new File(this.path,files[i]);

                        if (this.isValid(theFile)){

                                dsp= this.newParameter(theFile);

                                fileList.add(dsp);

                        }

                }

                IDataStoreParameters[] x = new IDataStoreParameters[1];

                x[0]=dsp;

                return (IDataStoreParameters[])fileList.toArray(x);

        }

        protected IDataStoreParameters newParameter(File file){

                DGNStoreParameters param = new DGNStoreParameters();

                param.setFile(file);

                return param;

        }

        protected boolean isValid(String file){

                return this.isValid(new File(file));

        }

        protected boolean isValid(File file){

                if (!file.exists()){

                        return false;

                }

                return (file.getName().toLowerCase().endsWith(".dgn"));

        }

        public String getName() {

                return DATASOURCE_NAME;

        }

        public void init(IDataExplorerParameters parameters) {

                this.parameters = (DGNDataExplorerParameters)parameters;

                this.path = this.parameters.getSource();

        }

        public IFeatureType[] getFeatureTypes(IDataStoreParameters dsp) throws ReadException {

                try {

                        return new IFeatureType[] {DGNStore.newFeatureType()};

                } catch (DataException e) {

                        throw new ReadException(this.getName(),e);

                }

        }

}