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):

* 2008 IVER T.I   {{Task}}

*/

/**

 *

 */

package org.gvsig.data.vectorial.joinstore;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import org.gvsig.data.DataManager;

import org.gvsig.data.IDataCollection;

import org.gvsig.data.IDataExplorer;

import org.gvsig.data.IDataStoreParameters;

import org.gvsig.data.IObservable;

import org.gvsig.data.IObserver;

import org.gvsig.data.commands.ICommandsRecord;

import org.gvsig.data.exception.CloseException;

import org.gvsig.data.exception.InitializeException;

import org.gvsig.data.exception.OpenException;

import org.gvsig.data.exception.ReadException;

import org.gvsig.data.exception.WriteException;

import org.gvsig.data.vectorial.AbstractFeatureStore;

import org.gvsig.data.vectorial.DefaultAttributeDescriptor;

import org.gvsig.data.vectorial.FeatureStoreNotification;

import org.gvsig.data.vectorial.IFeature;

import org.gvsig.data.vectorial.IFeatureAttributeDescriptor;

import org.gvsig.data.vectorial.IFeatureID;

import org.gvsig.data.vectorial.IFeatureStore;

import org.gvsig.data.vectorial.IFeatureStoreNotification;

import org.gvsig.data.vectorial.IFeatureType;

import org.gvsig.data.vectorial.IsNotFeatureSettingException;

import org.gvsig.exceptions.BaseException;

import org.gvsig.metadata.IMetadata;

import org.medfoster.sqljep.function.Second;

/**

 * @author jmvivo

 *

 */

public class JoinFetureStore extends AbstractFeatureStore{

        public static String DATASTORE_NAME="JoinFeatureStore";

        private IFeatureType featureType;

        private IFeatureStore storePrimary;

        private IFeatureStore storeSecondary;

        private String linkFieldSecondary=null;

        private List featuresList = null;

        protected JoinFeatureStoreParameters getJoinParameters(){

                return (JoinFeatureStoreParameters)this.parameters;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.vectorial.IFeatureStore#canAlterFeatureType()

         */

        public boolean canAlterFeatureType() {

                return false;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.vectorial.AbstractFeatureStore#doFinishEdition()

         */

        protected void doFinishEdition() throws WriteException, ReadException {

                throw new WriteException("UnsupportedOperation", "JoinFeatureStore");

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.vectorial.IFeatureStore#getDataCollection(org.gvsig.data.vectorial.IFeatureType, java.lang.String, java.lang.String)

         */

        public IDataCollection getDataCollection(IFeatureType type, String filter, String order) throws ReadException {

                // TODO Auto-generated method stub

                return null;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.vectorial.IFeatureStore#getDefaultFeatureType()

         */

        public IFeatureType getDefaultFeatureType() {

                return this.featureType;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.vectorial.IFeatureStore#getDefaultLabelingStrategy()

         */

        public Object getDefaultLabelingStrategy() {

                return null;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.vectorial.IFeatureStore#getDefaultLegend()

         */

        public Object getDefaultLegend() {

                return null;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.vectorial.IFeatureStore#getFeatureByID(org.gvsig.data.vectorial.IFeatureID)

         */

        public IFeature getFeatureByID(IFeatureID id) throws ReadException {

                // TODO Auto-generated method stub

                return null;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.vectorial.IFeatureStore#getFeatureTypes()

         */

        public List getFeatureTypes() {

                ArrayList list = new ArrayList();

                list.add(this.getDefaultFeatureType());

                return list;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.vectorial.IFeatureStore#isWithDefaultLegend()

         */

        public boolean isWithDefaultLegend() {

                return false;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.IDataStore#close()

         */

        public void close() throws CloseException {

                this.storePrimary.close();

                this.storeSecondary.close();

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.IDataStore#dispose()

         */

        public void dispose() throws CloseException {

                this.featureType = null;

                this.storePrimary.dispose();

                this.storeSecondary.dispose();

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.IDataStore#getExplorer()

         */

        public IDataExplorer getExplorer() throws ReadException {

                return null;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.IDataStore#getName()

         */

        public String getName() {

                return DATASTORE_NAME;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.IDataStore#isEditable()

         */

        public boolean isEditable() {

                return false;

        }

        /* (non-Javadoc)

         * @see org.gvsig.data.IDataStore#open()

         */

        public void open() throws OpenException, IsNotFeatureSettingException {

                this.storePrimary.open();

                this.storeSecondary.open();

        }

        /* (non-Javadoc)

         * @see org.gvsig.metadata.IMetadatable#getMetadata()

         */

        public IMetadata getMetadata() throws BaseException {

                // TODO Auto-generated method stub

                return null;

        }

        public void init(IDataStoreParameters parameters) throws InitializeException {

                super.init(this.parameters);

                if (!(this.parameters instanceof JoinFeatureStoreParameters)){

                        throw new InitializeException("Wrong parameters",this.getName());

                }

                JoinFeatureStoreParameters jParams = this.getJoinParameters();

                DataManager dataManager = DataManager.getManager();

                this.storePrimary = (IFeatureStore)dataManager.createDataStore(jParams.getStorePrimary());

                this.storeSecondary = (IFeatureStore)dataManager.createDataStore(jParams.getStoreSecondary());

                this.featureType = this.storePrimary.getDefaultFeatureType().cloneFeatureType();

                IFeatureType secondFType = this.storeSecondary.getDefaultFeatureType();

                Iterator iter = secondFType.iterator();

                String prefix = jParams.getFieldNamePrefix();

                while(iter.hasNext()){

                        DefaultAttributeDescriptor attr = (DefaultAttributeDescriptor) iter.next();

                        attr.setName(prefix + attr.getName());

                        this.featureType.add(attr);

                }

                this.linkFieldSecondary = prefix + jParams.getLinkFieldSecondary();

                if (this.featureType.getFieldIndex(this.linkFieldSecondary)< 0){

                        throw new InitializeException("Secondary link field not found: " +jParams.getLinkFieldSecondary(),this.getName());

                }

                String defGeometry = jParams.getDefaultGeometry();

                if (defGeometry != null){

                        if (this.featureType.getFieldIndex(defGeometry) >= 0){

                                this.featureType.setDefaultGeometry(defGeometry);

                        } else if (this.featureType.getFieldIndex(prefix+defGeometry) >= 0){

                                this.featureType.setDefaultGeometry(prefix+defGeometry);

                        } else {

                                throw new InitializeException("Default geometry field not found: " +defGeometry,this.getName());

                        }

                }

        }

}