Application: gvSIG desktop

/* 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.fmap.dal.store.gpe;

import java.io.File;

import org.cresques.cts.IProjection;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataManager;

import org.gvsig.fmap.dal.DataServerExplorer;

import org.gvsig.fmap.dal.DataStoreParameters;

import org.gvsig.fmap.dal.DataTypes;

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.feature.FeatureQuery;

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

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

import org.gvsig.fmap.dal.feature.impl.DefaultFeature;

import org.gvsig.fmap.dal.feature.spi.AbstractFeatureStoreProvider;

import org.gvsig.fmap.dal.feature.spi.FeatureProvider;

import org.gvsig.fmap.dal.feature.spi.FeatureReferenceProviderServices;

import org.gvsig.fmap.dal.feature.spi.FeatureSetProvider;

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

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.fmap.dal.store.gpe.handlers.FmapContentHandler;

import org.gvsig.fmap.dal.store.gpe.handlers.FmapErrorHandler;

import org.gvsig.fmap.geom.Geometry.TYPES;

import org.gvsig.fmap.geom.primitive.Envelope;

import org.gvsig.gpe.lib.api.GPELocator;

import org.gvsig.gpe.lib.api.GPEManager;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynClass;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.dynobject.DynObjectManager;

import org.gvsig.xmlschema.lib.api.XMLSchemaLocator;

import org.gvsig.xmlschema.lib.api.XMLSchemaManager;

/**

 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>

 */

public class GPEStoreProvider extends AbstractFeatureStoreProvider implements

ResourceConsumer {

        public static String NAME = "GPEStore";

        public static String DESCRIPTION = "GPE file";

        private static final String DYNCLASS_NAME = "GPEStore";

        protected static DynClass DYNCLASS = null;

        private GPEStoreParameters gpeParams;

        protected File m_Fich;

        private ResourceProvider gpeResource;

        protected boolean isOpen = false;        

        //Managers to manage the parsing process

        protected GPEManager gpeManager = null;

        protected XMLSchemaManager xmlSchemaManager = null;

        //The content handler and the error handler

        protected FmapContentHandler contentHandler;

        protected FmapErrorHandler errorHandler;

        public GPEStoreProvider(DataStoreParameters params,

                        DataStoreProviderServices storeServices)

        throws InitializeException {

                this(params,storeServices,ToolsLocator.getDynObjectManager()

                                .createDynObject(DYNCLASS));

        }

        protected GPEStoreProvider(DataStoreParameters params,

                        DataStoreProviderServices storeServices, DynObject metadata)

                        throws InitializeException {

                super(params, storeServices, metadata);

                this.setDynValue("Envelope", null);

                gpeManager = GPELocator.getGPEManager();

                xmlSchemaManager = XMLSchemaLocator.getXMLSchemaManager();                

                retrieveFile();

                gpeResource = this.createResource(FileResource.NAME,

                                new Object[] { m_Fich.getAbsolutePath() });

                gpeResource.addConsumer(this);

                this.initFeatureType();

        }

        protected void retrieveFile() throws InitializeException{

                m_Fich = getGPEParameters().getFile();

        }

        protected void initFeatureType() throws InitializeException {

                try {

                        this.open();

                } catch (DataException e) {

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

                }

        }

        private GPEStoreParameters getGPEParameters() {

                return (GPEStoreParameters) this.getParameters();

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.resource.spi.ResourceConsumer#closeResourceRequested(org.gvsig.fmap.dal.resource.spi.ResourceProvider)

         */

        public boolean closeResourceRequested(ResourceProvider resource) {

                // TODO Auto-generated method stub

                return false;

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.resource.spi.ResourceConsumer#resourceChanged(org.gvsig.fmap.dal.resource.spi.ResourceProvider)

         */

        public void resourceChanged(ResourceProvider resource) {

                // TODO Auto-generated method stub

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider#canWriteGeometry(int)

         */

        public boolean canWriteGeometry(int geometryType, int geometrySubtype)

                        throws DataException {

                // TODO Auto-generated method stub

                return false;

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider#createNewOID()

         */

        public Object createNewOID() {

                return contentHandler.createNewOID();

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider#createSet(org.gvsig.fmap.dal.feature.FeatureQuery)

         */

        public FeatureSetProvider createSet(FeatureQuery query)

        throws DataException {

                return new GPESetProvider(this, query);

        }

        protected FeatureProvider internalGetFeatureProviderByReference(

                        FeatureReferenceProviderServices reference) throws DataException {

                return internalGetFeatureProviderByReference(reference,

                                this

                                .getFeatureStore()

                                .getDefaultFeatureType());

        }

        protected FeatureProvider internalGetFeatureProviderByReference(

                        FeatureReferenceProviderServices reference, FeatureType featureType)

                        throws DataException {

                return this.getFeatureProviderByIndex((Long) reference.getOID(),

                                featureType);

        }

        FeatureProvider getFeatureProviderByIndex(Long index, FeatureType fType)

        throws DataException {

                return ((DefaultFeature)contentHandler.

                                getFeatureSet().get(index)).getData();

        }

        public void resourcesBegin() throws ResourceExecuteException {

                // Nothing to do

        }

        public void resourcesEnd() {

                // Nothing to do

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider#getFeatureReferenceOIDType()

         */

        public int getOIDType() {

                return DataTypes.STRING;

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider#getName()

         */

        public String getName() {

                return NAME;

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.spi.DataStoreProvider#getSourceId()

         */

        public Object getSourceId() {

                return getGPEParameters().getFile();

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.spi.DataStoreProvider#open()

         */

        public void open() throws OpenException {

                if (isOpen) {

                        return;

                }

                try {

                        errorHandler = new FmapErrorHandler();

                        contentHandler = new FmapContentHandler(errorHandler,

                                        getStoreServices(), this, m_Fich,

                                        getSRS(),

                                        getGeometryType());

                        isOpen = true;

                        gpeManager.parse(contentHandler, errorHandler, m_Fich.toURI());                        

                } catch (Exception e) {

                        throw new OpenException("Imposible create a parser",e);

                }

        }

        protected IProjection getSRS(){

                return getGPEParameters().getSRS();

        }        

        protected int getGeometryType() {

                return TYPES.GEOMETRY;

        }

        protected static void registerDynClass() {

                DynObjectManager dynman = ToolsLocator.getDynObjectManager();

                DynClass dynClass;                

                if (DYNCLASS == null) {

                        dynClass = dynman.add(DYNCLASS_NAME);

                        // The SHP store parameters extend the DBF store parameters

                        dynClass.extend(dynman.get(FeatureStore.DYNCLASS_NAME));

                        DYNCLASS = dynClass;

                }

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.spi.FeatureStoreProvider#createSet(org.gvsig.fmap.dal.feature.FeatureQuery, org.gvsig.fmap.dal.feature.FeatureType)

         */

        public FeatureSetProvider createSet(FeatureQuery query,

                        FeatureType featureType) throws DataException {

                return new GPESetProvider(this, query, featureType);

        }

        public long getFeatureCount() throws DataException {                

                return contentHandler.getFeaturesCount();

        }

        /* (non-Javadoc)

         * @see org.gvsig.fmap.dal.feature.spi.AbstractFeatureStoreProvider#getEnvelope()

         */

        public Envelope getEnvelope() throws DataException {

                this.open();

                return (Envelope) this.getDynValue("Envelope");

        }

        public void setEnvelope(Envelope envelope) {

                this.setDynValue("Envelope", envelope);

        }

        public ResourceProvider getResource() {

                return gpeResource;

        }

        public DataServerExplorer getExplorer() throws ReadException,

                        ValidateDataParametersException {

                DataManager manager = DALLocator.getDataManager();

                FilesystemServerExplorerParameters params;

                try {

                        params = (FilesystemServerExplorerParameters) manager

                                        .createServerExplorerParameters(FilesystemServerExplorer.NAME);

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

                        return manager.createServerExplorer(params);

                } catch (DataException e) {

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

                } catch (ValidateDataParametersException e) {

                        // TODO Auto-generated catch block

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

                }

        }

        /**

         * @return the contentHandler

         */

        public FmapContentHandler getContentHandler() {

                return contentHandler;

        }

        /**

         * @return the errorHandler

         */

        public FmapErrorHandler getErrorHandler() {

                return errorHandler;

        }

}