Application: gvSIG desktop

/* gvSIG. Desktop Geographic Information System.

 *

 * Copyright ? 2007-2016 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 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.

 *

 * 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.raster.impl;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import org.gvsig.fmap.dal.raster.BandAttributeDescriptor;

import org.gvsig.fmap.dal.raster.BandDescriptor;

import org.gvsig.fmap.dal.raster.RasterStore;

import org.gvsig.fmap.dal.raster.spi.BandDescriptorServices;

import org.gvsig.fmap.dal.raster.spi.RasterStoreProviderServices;

import org.gvsig.raster.lib.buffer.api.NoData;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dispose.DisposeUtils;

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

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.exception.BaseException;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

/**

 * Default implementation of {@link BandDescriptor}.

 *

 * @author <a href="mailto:lmarques@disid.com">Lluis Marques</a>

 *

 */

public class DefaultBandDescriptor extends AbstractDisposable implements BandDescriptorServices  {

    private static final String PERSISTENCE_NAME = "BandDescriptor";

    private static final String PERSISTENCE_DESCRIPTION = "";

    private static final String BAND_FIELD_NAME = "band";

    private static final String BAND_ATTRIBUTE_DESCRIPTORS_FIELD_NAME = "bandAttributeDescriptors";

    private List<BandAttributeDescriptor> bandAttributeDescriptors;

    private int band;

    private RasterStore store;

    private NoData noData;

    private int dataType;

    private String name;

    private String description;

    /**

     *

     * @param band

     * @param attributeDescriptors

     */

    public DefaultBandDescriptor(RasterStore store, int band, List<BandAttributeDescriptor> attributeDescriptors) {

        this.band = band;

        this.bandAttributeDescriptors = attributeDescriptors;

        this.noData = null;

        this.store = store;

        // No debemos incrementar las referencias al store para evitar referencias circulares

        // no tiene sentido forzar que no se pueda hacer un dispose del store aqu?.

//        ToolsLocator.getDisposableManager().bind(store);

        this.name = String.valueOf(this.band);

        this.description = "";

    }

    @Override

    public int getBand() {

        return this.band;

    }

    @Override

    public BandAttributeDescriptor get(int index) {

        if (index >= 0 && index < bandAttributeDescriptors.size()) {

            return bandAttributeDescriptors.get(index);

        }

        return null;

    }

    @Override

    public BandAttributeDescriptor get(String name) {

        for (BandAttributeDescriptor bandAttributeDescriptor : bandAttributeDescriptors) {

            if (bandAttributeDescriptor.getName().equals(name)) {

                return bandAttributeDescriptor;

            }

        }

        return null;

    }

    @Override

    public int size() {

        return bandAttributeDescriptors.size();

    }

    @Override

    public Iterator<BandAttributeDescriptor> iterator() {

        return bandAttributeDescriptors.iterator();

    }

    public static void registerPersitenceDefinition() {

        PersistenceManager persistenceManager = ToolsLocator.getPersistenceManager();

        DynStruct definition = persistenceManager.getDefinition(PERSISTENCE_NAME);

        if (definition == null) {

            definition =

                persistenceManager.addDefinition(BandDescriptor.class, PERSISTENCE_NAME,

                    PERSISTENCE_DESCRIPTION, null, null);

            definition.addDynFieldInt(BAND_FIELD_NAME);

            definition.addDynFieldList(BAND_ATTRIBUTE_DESCRIPTORS_FIELD_NAME).setClassOfItems(

                BandAttributeDescriptor.class);

        }

    }

    @Override

    public void saveToState(PersistentState state) throws PersistenceException {

        state.set(BAND_FIELD_NAME, this.getBand());

        state.set(BAND_ATTRIBUTE_DESCRIPTORS_FIELD_NAME, this.bandAttributeDescriptors);

    }

    @Override

    public void loadFromState(PersistentState state) throws PersistenceException {

        this.band = state.getInt(BAND_FIELD_NAME);

        this.bandAttributeDescriptors =

            new ArrayList<BandAttributeDescriptor>(

                state.getList(BAND_ATTRIBUTE_DESCRIPTORS_FIELD_NAME));

    }

    @Override

    public Object clone() throws CloneNotSupportedException {

        DefaultBandDescriptor newBandDescriptor = (DefaultBandDescriptor) super.clone();

        newBandDescriptor.bandAttributeDescriptors =

            new ArrayList<BandAttributeDescriptor>();

        for (BandAttributeDescriptor bandAttributeDescriptor : this.bandAttributeDescriptors) {

            newBandDescriptor.bandAttributeDescriptors.add((BandAttributeDescriptor) bandAttributeDescriptor.clone());

        }

        return newBandDescriptor;

    }

    @Override

    public RasterStore getStore() {

        return this.store;

    }

    @Override

    public NoData getNoData() {

        return this.noData;

    }

    @Override

    public void setNoData(NoData noData) {

        this.noData = noData;

    }

    @Override

    protected void doDispose() throws BaseException {

        // ?Si no tiene sentido hacer un bind en el constructor, lo tiene hacer un dispose aqu??

        // Ver comentario en el constructor

//        DisposeUtils.disposeQuietly(this.store);

        this.store = null;

        this.bandAttributeDescriptors = null;

        this.noData = null;

    }

    @Override

    public BandAttributeDescriptor add(BandAttributeDescriptor bandAttributeDescriptor) {

        this.bandAttributeDescriptors.add(bandAttributeDescriptor);

        return bandAttributeDescriptor;

    }

    @Override

    public BandAttributeDescriptor add(String name, Object value) {

        BandAttributeDescriptor x = ((RasterStoreProviderServices)this.store).createBandAttributeDescriptor(band, name, value, null, null, null);

        return x;

    }

    @Override

    public int getDataType() {

        return this.dataType;

    }

    @Override

    public void setDataType(int dataType) {

        this.dataType = dataType;

    }

    @Override

    public String getName() {

        return this.name;

    }

    @Override

    public String getDescription() {

        return this.description;

    }

    @Override

    public void setName(String name) {

        this.name = name;

    }

    @Override

    public void setDescription(String description) {

        this.description = description;

    }

}