| gvSIG desktop 1

/* 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.newlayer.prov.file;

import java.io.File;

import java.util.ArrayList;

import java.util.List;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.DataServerExplorerParameters;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.exception.InitializeException;

import org.gvsig.fmap.dal.exception.ProviderNotRegisteredException;

import org.gvsig.fmap.dal.exception.ValidateDataParametersException;

import org.gvsig.fmap.dal.feature.EditableFeatureType;

import org.gvsig.fmap.dal.feature.NewFeatureStoreParameters;

import org.gvsig.newlayer.NewLayerProviderPanel;

import org.gvsig.newlayer.NewLayerService;

import org.gvsig.newlayer.spi.AbstractNewLayerProvider;

import org.gvsig.tools.exception.BaseRuntimeException;

/**

 * NewLayer provider to create a shape file.

 * 

 * @author gvSIG Team

 * @version $Id$

 */

public abstract class AbstractNewLayerFileProvider extends AbstractNewLayerProvider {

    protected static final Logger LOG =

        LoggerFactory.getLogger(AbstractNewLayerFileProvider.class);

    protected List<NewLayerProviderPanel> panels = new ArrayList();

    protected NewLayerFileProviderPanel fileProviderPanel = null;

    protected NewFeatureStoreParameters storeParameters = null;

    protected AbstractNewLayerFileProvider(NewLayerService service) {

                super(service);

                fileProviderPanel = new NewLayerFileProviderPanel(this);

                panels.add(fileProviderPanel);

    }    

    public List<NewLayerProviderPanel> getPanels() {   

        return panels;

    }    

    public EditableFeatureType getFeatureType() {

        return this.getNewStoreParameters().getDefaultFeatureType();

    }

    protected abstract String getFileParameterName();

    protected abstract String getFileExtension();

    public NewFeatureStoreParameters getNewStoreParameters() {

        DataManager dataManager = DALLocator.getDataManager();

        try {

            if (this.explorer == null){

                DataServerExplorerParameters explorerParameters =

                    dataManager.createServerExplorerParameters("FilesystemExplorer");

                this.explorer =

                    dataManager.openServerExplorer("FilesystemExplorer", explorerParameters);

            }

            File selectedFile = fileProviderPanel.getSelectedFile();

            String fileName = selectedFile.getName();

            if (fileName.indexOf(".") < 0){

                fileName = fileName + "." + this.getFileExtension();

                selectedFile = new File(selectedFile.getParent() + File.separator + fileName);

            }            

            //If the file has not been updated, returns the same parameters

            if (this.storeParameters != null){

                File previousFile = (File)storeParameters.getDynValue(getFileParameterName());

                if (previousFile.equals(selectedFile)){

                    return storeParameters;

                }

            }         

            storeParameters = 

                (NewFeatureStoreParameters) explorer.getAddParameters(this.getStoreName());      

            storeParameters.setDynValue(

                getFileParameterName(), selectedFile);

            return storeParameters;

        } catch (InitializeException e) {

            LOG.error("Can't initialize store parameters.");

            throw new CantInitializeStoreParametersException(e);

        } catch (ProviderNotRegisteredException e) {

            LOG.error("Can't create store parameters, provider not registered.");

            throw new CantCreateStoreParametersException(e);

        } catch (DataException e) {

            LOG.error("Can't create store parameters, provider not registered.");

            throw new CantCreateStoreParametersException(e);

        } catch (ValidateDataParametersException e) {

            LOG.error("Can't create the explorter.");

            throw new CantCreateExplorerException(e);

        }

    }

    class CantCreateExplorerException extends BaseRuntimeException {

        private static final long serialVersionUID = -3487961532247258393L;

        private final static String MESSAGE_FORMAT = "Can't create explorer.";

        private final static String MESSAGE_KEY = "_Cant_create_explorer";

        public CantCreateExplorerException(Throwable cause) {

            super(MESSAGE_FORMAT, cause, MESSAGE_KEY, serialVersionUID);

        }

    }

    class CantCreateStoreParametersException extends BaseRuntimeException {

        private static final long serialVersionUID = -3487961532247258393L;

        private final static String MESSAGE_FORMAT = "Can't create store parameters, provider not registered.";

        private final static String MESSAGE_KEY = "_Cant_create_store_parameters_provider_not_registered";

        public CantCreateStoreParametersException(Throwable cause) {

            super(MESSAGE_FORMAT, cause, MESSAGE_KEY, serialVersionUID);

        }

    }

    class CantInitializeStoreParametersException extends BaseRuntimeException {

        private static final long serialVersionUID = -5263149018209261288L;

        private final static String MESSAGE_FORMAT = "Can't initialize store parameters.";

        private final static String MESSAGE_KEY = "_Cant_initialize_store_parameters";

        public CantInitializeStoreParametersException(Throwable cause) {

            super(MESSAGE_FORMAT, cause, MESSAGE_KEY, serialVersionUID);

        }

    }

 }