Application: gvSIG desktop » gvSIG raster

/* 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.

*

*/

/*

* AUTHORS (In addition to CIT):

* 2009 IVER T.I   {{Task}}

*/

package org.gvsig.raster.tilecache.io;

import java.io.File;

import java.io.FileInputStream;

import java.util.List;

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.DataServerExplorerParameters;

import org.gvsig.fmap.dal.DataStore;

import org.gvsig.fmap.dal.DataStoreParameters;

import org.gvsig.fmap.dal.NewDataStoreParameters;

import org.gvsig.fmap.dal.coverage.RasterLocator;

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

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

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

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

import org.gvsig.fmap.dal.serverexplorer.filesystem.impl.AbstractFilesystemServerExplorerProvider;

import org.gvsig.fmap.dal.serverexplorer.filesystem.spi.FilesystemServerExplorerProviderServices;

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

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

import org.gvsig.raster.impl.store.AbstractRasterFileDataParameters;

public class TileServerExplorer extends AbstractFilesystemServerExplorerProvider implements DataServerExplorerProvider {

        public static final String               NAME                     = "TileServerExplorer";

        public TileServerExplorer() {

        }

        public TileServerExplorer(

                        TileServerExplorerParameters parameters,

                        DataServerExplorerProviderServices services)

                        throws InitializeException {

        }

        public boolean canCreate() {

                return false;

        }

        public boolean canCreate(NewDataStoreParameters parameters) {

                return false;

        }

        public void create(NewDataStoreParameters parameters, boolean overwrite)

                        throws CreateException {

                throw new UnsupportedOperationException();

        }

        public NewDataStoreParameters getCreateParameters() throws DataException {

                return null;

        }

        public void initialize(

                        FilesystemServerExplorerProviderServices serverExplorer) {

        }

        public void remove(DataStoreParameters parameters) throws RemoveException {

                throw new UnsupportedOperationException();

        }

        public String getDataStoreProviderName() {

                return TileProvider.NAME;

        }

        /**

         * When the source is a file then this method will check if exists a

         * provider that can manage it

         */

        public boolean accept(File pathname) {

                if (pathname.getParentFile() != null &&

                                pathname.getParentFile().getName().equals("cellhd")) {

                        if (pathname.getName().endsWith(".rmf")

                                        || pathname.getName().endsWith(".rmf~")) {

                                return false;

                        }

                        return true;

                }

                // Comprobamos que no sea un rmf propio, osea, que contenga xml

                if (pathname.getName().toLowerCase().endsWith(".rmf")) {

                        FileInputStream reader = null;

                        try {

                                reader = new FileInputStream(pathname);

                                String xml = "";

                                for (int i = 0; i < 6; i++) {

                                        xml += (char) reader.read();

                                }

                                if (xml.equals("<?xml ")) {

                                        return false;

                                }

                        } catch (Exception e) {

                        } finally {

                                try {

                                        reader.close();

                                } catch (Exception e) {

                                }

                        }

                }

                //The formats will be registered if it hasn't been done yet

                RasterLocator.getManager().getProviderServices().registerTileProviderFormats(TileProvider.class);

                return RasterLocator.getManager().getProviderServices().isExtensionSupported(

                                pathname.getName(),

                                TileProvider.class);

        }

        public String getDescription() {

                return TileProvider.DESCRIPTION;

        }

        public DataStoreParameters getParameters(File file) throws DataException {

                DataManager manager = DALLocator.getDataManager();

                AbstractRasterFileDataParameters params = (AbstractRasterFileDataParameters) manager

                                .createStoreParameters(this.getDataStoreProviderName());

                params.setFile(file);

                return params;

        }

        public DataServerExplorerParameters getParameters() {

                return null;

        }

        public int getMode() {

                return DataServerExplorer.MODE_RASTER;

        }

        public DataServerExplorerProviderServices getServerExplorerProviderServices() {

                return null;

        }

        public boolean add(String provider, NewDataStoreParameters parameters,

                        boolean overwrite) throws DataException {

                return false;

        }

        public boolean canAdd() {

                return false;

        }

        public boolean canAdd(String storeName) throws DataException {

                return false;

        }

        public NewDataStoreParameters getAddParameters(String storeName)

                        throws DataException {

                return null;

        }

        @SuppressWarnings("unchecked")

        public List getDataStoreProviderNames() {

                return null;

        }

        public String getProviderName() {

                return null;

        }

        @SuppressWarnings("unchecked")

        public List list() throws DataException {

                return null;

        }

        @SuppressWarnings("unchecked")

        public List list(int mode) throws DataException {

                return null;

        }

        public void dispose() {

        }

    @Override

    public DataStoreParameters get(String name) throws DataException {

        File theFile = new File(name);

        DataStoreParameters dsp = this.getParameters(theFile);

        return dsp;

    }

    /* (non-Javadoc)

     * @see org.gvsig.fmap.dal.DataServerExplorer#getResourcePath(org.gvsig.fmap.dal.DataStore, java.lang.String)

     */

    @Override

    public File getResourcePath(DataStore dataStore, String resourceName) throws DataException {

        String rootPathName = getResourceRootPathName(dataStore);

        if (rootPathName == null) {

            return null;

        }

        File f = new File(FilenameUtils.getPathNoEndSeparator(rootPathName),resourceName);

        if( f.exists() ) {

            return f;

        }

        return new File(rootPathName + "." + resourceName);

    }

}