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.raster.spi;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.DataServerExplorer;

import org.gvsig.fmap.dal.DataStoreParameters;

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

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.CoverageSelection;

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

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

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

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

import org.gvsig.tools.dispose.impl.AbstractDisposable;

import org.gvsig.tools.dynobject.DelegatedDynObject;

import org.gvsig.tools.dynobject.DynClass;

import org.gvsig.tools.dynobject.DynObject;

import org.gvsig.tools.dynobject.exception.DynFieldNotFoundException;

import org.gvsig.tools.dynobject.exception.DynMethodException;

import org.gvsig.tools.exception.BaseException;

/**

 * @author jmvivo

 *

 */

public abstract class AbstractCoverageStoreProvider extends AbstractDisposable

                implements CoverageStoreProvider {

        protected CoverageStoreProviderServices store;

        protected DelegatedDynObject metadata;

        protected DataStoreParameters parameters;

        protected AbstractCoverageStoreProvider(DataStoreParameters params,

                        DataStoreProviderServices storeServices, DynObject metadata) {

                init(params, storeServices, metadata);

        }

        protected AbstractCoverageStoreProvider(DataStoreParameters params,

                        DataStoreProviderServices storeServices) {

                init(params, storeServices, null);

        }

        protected AbstractCoverageStoreProvider() {

        }

        protected void init(DataStoreParameters params,

                        DataStoreProviderServices storeServices, DynObject metadata) {

                this.store = (CoverageStoreProviderServices) storeServices;

                this.metadata = (DelegatedDynObject) metadata;

                this.parameters = params;

        }

        /**

         * Gets the DataStoreParameters

         * @return DataStoreParameters

         */

        public DataStoreParameters getDataStoreParameters() {

                return parameters;

        }

        /**

         * Set metada container if this not set at construction time and only in one

         * time. In other case an Exception will be throw

         *

         * @param metadata

         */

        protected void setMetadata(DynObject metadata) {

                if (this.metadata != null) {

                        // FIXME Exception

                        throw new IllegalStateException();

                }

                this.metadata = (DelegatedDynObject) metadata;

        }

        protected ResourceProvider createResource(String type, Object[] params)

                        throws InitializeException {

                ResourceManagerProviderServices manager = (ResourceManagerProviderServices) DALLocator

                                .getResourceManager();

                ResourceProvider resource = manager.createAddResource(type, params);

                return resource;

        }

        public CoverageStoreProviderServices getStoreServices() {

                return this.store;

        }

        public String getClassName() {

                return this.getClass().getName();

        }

        public boolean allowWrite() {

                return false;

        }

        public CoverageSelection createCoverageSelection() throws DataException {

                return this.store.createDefaultCoverageSelection();

        }

        public void refresh() throws OpenException {

                // Do nothing by default

        }

        public void close() throws CloseException {

                // Do nothing by default

        }

        protected void doDispose() throws BaseException {

                this.metadata = null;

                this.store = null;

                this.parameters = null;

        }

        public Envelope getEnvelope() throws DataException {

                return null;

        }

        public abstract DataServerExplorer getExplorer() throws ReadException,

                        ValidateDataParametersException;

        public void delegate(DynObject dynObject) {

                if (this.metadata == null) {

                        return;

                }

                this.metadata.delegate(dynObject);

        }

        public DynClass getDynClass() {

                if (this.metadata == null) {

                        return null;

                }

                return this.metadata.getDynClass();

        }

        public Object getDynValue(String name) throws DynFieldNotFoundException {

                if (this.metadata == null) {

                        return null;

                }

                // TODO this.open??

                return this.metadata.getDynValue(name);

        }

        public boolean hasDynValue(String name) {

                if (this.metadata == null) {

                        return false;

                }

                // TODO this.open??

                return this.metadata.hasDynValue(name);

        }

        public void implement(DynClass dynClass) {

                if (this.metadata == null) {

                        return;

                }

                this.metadata.implement(dynClass);

        }

        public Object invokeDynMethod(int code, DynObject context)

                        throws DynMethodException {

                if (this.metadata == null) {

                        return null;

                }

                // TODO this.open??

                return this.metadata.invokeDynMethod(this, code, context);

        }

        public Object invokeDynMethod(String name, DynObject context)

                        throws DynMethodException {

                if (this.metadata == null) {

                        return null;

                }

                // TODO this.open??

                return this.metadata.invokeDynMethod(this, name, context);

        }

        public void setDynValue(String name, Object value)

                        throws DynFieldNotFoundException {

                if (this.metadata == null) {

                        return;

                }

                // TODO this.open??

                this.metadata.setDynValue(name, value);

        }

        public void clear() {

                if (metadata != null) {

                        metadata.clear();

                }

        }

}