Application: gvSIG desktop

/* gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2016 gvSIG Association

 *

 * 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.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

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

import java.awt.image.BufferedImage;

import java.io.File;

import javax.imageio.ImageIO;

import org.apache.commons.io.FilenameUtils;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.DataServerExplorer;

import org.gvsig.fmap.dal.DataStoreNotification;

import org.gvsig.fmap.dal.DataStoreParameters;

import org.gvsig.fmap.dal.FileHelper;

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

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

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

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

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

import org.gvsig.fmap.dal.raster.spi.AbstractAwtRasterStoreProvider;

import org.gvsig.fmap.dal.resource.exception.AccessResourceException;

import org.gvsig.fmap.dal.resource.file.FileResource;

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

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

import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorer;

import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorerParameters;

import org.gvsig.fmap.dal.spi.DataStoreProviderServices;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.exception.BaseException;

import org.gvsig.tools.task.SimpleTaskStatus;

public class ImageIOStoreProvider 

        extends 

            AbstractAwtRasterStoreProvider 

        implements 

            ResourceConsumer

    {

    protected String storeProviderName;

    protected String storeProviderDescription;

    protected ResourceProvider resource;

    private BufferedImage image;

    /**

     * @param storeProviderName

     * @param storeProviderDescription

     * @param params

     * @param storeServices

     * @throws InitializeException

     */

    @SuppressWarnings("OverridableMethodCallInConstructor")

    public ImageIOStoreProvider(

        String storeProviderName, 

        String storeProviderDescription, 

        ImageIOStoreProviderParameters params,

        DataStoreProviderServices storeServices

        ) throws InitializeException {

        super(

                params,

                storeServices,

                FileHelper.newMetadataContainer(storeProviderName)

        );

        this.storeProviderName = storeProviderName;

        this.storeProviderDescription = storeProviderDescription;

        this.init(params, storeServices);

    }

    @Override

    public String getProviderName() {

        return this.storeProviderName;

    }

    @Override

    protected void init(DataStoreParameters params, DataStoreProviderServices storeServices) throws InitializeException {

        super.init(params, storeServices);

        File file = getParameters().getFile();

        if (file == null) {

            throw new InitializeException(

                new NullPointerException(this.storeProviderName +" file is null"));

        }

        resource = this.createResource(

            FileResource.NAME,

            new Object[] { file.getAbsolutePath() }

        );

        resource.addConsumer(this);

    }

    @Override

    public ResourceProvider getResource() {

        return this.resource;

    }

    @Override

    public Object getSourceId() {

        return this.getParameters().getFile();

    }

    @Override

    public String getName() {

        String name = this.getParameters().getFile().getName();

        return FilenameUtils.getBaseName(name);

    }

    @Override

    public String getFullName() {

        return this.getParameters().getFile().getAbsolutePath();

    }

    @Override

    public boolean closeResourceRequested(ResourceProvider resource) {

        return true;

    }

    @Override

    public void resourceChanged(ResourceProvider resource) {

        this.getStoreServices().notifyChange(

            DataStoreNotification.RESOURCE_CHANGED,

            resource);

    }

    @Override

    protected void doDispose() throws BaseException {

        super.doDispose();

        resource.removeConsumer(this);

        resource = null;

        image = null;

    }

    @Override

    public ImageIOStoreProviderParameters getParameters() {

        return (ImageIOStoreProviderParameters) super.getParameters();

    }

    @Override

    public void open() throws OpenException {

        if (this.isOpen()) {

            return;

        }

        SimpleTaskStatus taskStatus = null;

        try {

            taskStatus = ToolsLocator.getTaskStatusManager().createDefaultSimpleTaskStatus(this.getName());

            taskStatus.setIndeterminate();

            taskStatus.setAutoremove(true);

            taskStatus.message("Loading "+this.getName()+"...");

            taskStatus.add();

            image = ImageIO.read((File) getResource().getParameters().getDynValue(FileResource.NAME));

            open(image.getRaster());

        } catch (Exception e) {

            if( taskStatus!=null ) {

                taskStatus.abort();

                taskStatus = null;

            }

            try {

                throw new OpenException(resource.getName(), e);

            } catch (AccessResourceException e1) {

                throw new OpenException(getProviderName(), e);

            }

        } finally {

            if( taskStatus!=null ) {

                taskStatus.terminate();

                taskStatus = null;

            }

        }

    }

    @Override

    public DataServerExplorer getExplorer() throws ReadException, ValidateDataParametersException {

        DataManager manager = DALLocator.getDataManager();

        FilesystemServerExplorerParameters params;

        try {

            params = (FilesystemServerExplorerParameters) manager

            .createServerExplorerParameters(FilesystemServerExplorer.NAME);

            params.setRoot(this.getParameters().getFile().getParent());

            return manager.openServerExplorer(FilesystemServerExplorer.NAME,params);

        } catch (DataException | ValidateDataParametersException e) {

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

        }

    }

    /**

     * @return BufferedImage

     */

    public BufferedImage getImage() {

        autoOpen();

        return this.image;

    }

}