Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 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 3

 * 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.store.dbf;

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

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

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

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

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

import org.gvsig.fmap.geom.Geometry;

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

public class DBFFeatureProvider extends DefaultFeatureProvider {

    protected DBFStoreProvider store;

    protected boolean loading;

    protected boolean loaded;

    private final FeatureType storeFeatureType;

    public DBFFeatureProvider(DBFStoreProvider store, FeatureType providerFeatureType, FeatureType storeFeatureType) {

        super(providerFeatureType);

        this.store = store;

        this.storeFeatureType = storeFeatureType;

        loading = false;

        loaded = false;

    }

    protected void load() {

        if (loading || loaded || this.isNew()) {

            return;

        }

        loading = true;

        try {

            this.store.loadFeatureProviderByIndex(this);

        } catch (DataException e) {

            throw new ReadRuntimeException(getNameForMessages(), this.getOID(), e);

        } finally {

            loading = false;

            loaded = true;

        }

    }

    protected String getNameForMessages() {

        // Solo con proposito de mostrar en mensajes de error.

        try {

            return this.store.getName();

        } catch (Exception ex) {

            return "unknown";

        }

    }

    @Override

    public void set(int i, Object value) {

        this.load();

        super.set(i, value);

    }

    @Override

    public void set(String name, Object value) {

        this.load();

        super.set(featureType.getIndex(name), value);

    }

    @Override

    public Object get(int i) {

        this.load();

        return super.get(i);

    }

    @Override

    public Object get(String name) {

        this.load();

        return super.get(name);

    }

    @Override

    public Geometry getDefaultGeometry() {

        return null;

    }

    @Override

    public Envelope getDefaultEnvelope() {

        return null;

    }

    @Override

    public void setOID(Object oid) {

        this.loaded = false;

        super.setOID(oid);

    }

    @Override

    public FeatureProvider getCopy() {

        this.load();

        return super.getCopy();

    }

    public void setProviderFeatureType(FeatureType featureType) {

        this.featureType = featureType;

    }

    void setBroken(boolean b) {

        this.broken = b;

    }

    public FeatureType getStoreFeatureType() {

        return this.storeFeatureType;

    }

    public FeatureType getProviderFeatureType() {

        return this.getType();

    }

}