Application: gvSIG desktop » gvSIG tools: Vector editing

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright � 2007-2014 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.vectorediting.lib.spi;

import java.util.ArrayList;

import java.util.List;

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

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

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

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

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dispose.DisposableIterator;

import org.gvsig.tools.service.spi.AbstractProvider;

import org.gvsig.tools.service.spi.ProviderServices;

import org.gvsig.tools.task.SimpleTaskStatus;

import org.gvsig.vectorediting.lib.api.EditingServiceParameter;

import org.gvsig.vectorediting.lib.api.exceptions.InvalidEntryException;

import org.gvsig.vectorediting.lib.api.exceptions.StartServiceException;

import org.gvsig.vectorediting.lib.api.exceptions.StopServiceException;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public abstract class AbstractEditingProvider extends AbstractProvider

implements EditingProvider, Geometry.TYPES, Geometry.SUBTYPES {

    protected static final Logger LOGGER = LoggerFactory

        .getLogger(AbstractEditingProvider.class);

    private boolean showPreviewSymbol;

    public AbstractEditingProvider(ProviderServices providerServices) {

        super(providerServices);

        showPreviewSymbol = true;

    }

    @Override

    public boolean isEnabled(EditingServiceParameter parameter) {

        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

    }

//    @Override

//    public void setValue(EditingServiceParameter parameter, Object value) throws InvalidEntryException {

//        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

//    }

    @Override

    public abstract void setValue(EditingServiceParameter parameter, Object value) throws InvalidEntryException;

    @Override

    public void activate() {

    }

    @Override

    public Object getValue(EditingServiceParameter parameter) {

        // To implement in subclasses

        LOGGER.warn("'"+this.getClass().getName() + "' dooes not implement the method 'getValue'.");

        return null;

    }

    public Object getValue(EditingServiceParameter parameter, EditingServiceParameter.TYPE type) {

        return this.getValue(parameter);

    }

    @Override

    protected EditingProviderServices getProviderServices() {

        return (EditingProviderServices)super.getProviderServices();

    }

    @Override

    public void setDefaultFeatureValues(EditableFeature feature) {

        ((EditingProviderServices)(this.getProviderServices())).setDefaultFeatureValues(feature);

    }

    @Override

    public EditableFeature getDefaultFeatureValues() {

        return ((EditingProviderServices)(this.getProviderServices())).getDefaultFeatureValues();

    }

    public ISymbol getPreviewSymbol() {

        if(!showPreviewSymbol){

            return null;

        }

        return this.getProviderServices().getPreviewSymbol();

    }

    public ISymbol getPreviewSymbol(Feature feature) {

        if(!showPreviewSymbol){

            return null;

        }

        return this.getProviderServices().getPreviewSymbol(feature);

    }

    @Override

    public void setShowPreviewSymbol(boolean showPreviewSymbol) {

        this.showPreviewSymbol = showPreviewSymbol;

    }

    @Override

    public boolean isShowPreviewSymbol() {

        return this.showPreviewSymbol;

    }

//    protected Object validateAndInsertTypeOptionParameterValue(EditingServiceParameter parameter, Object value) throws InvalidEntryException {

//        EditingServiceParameterOptions opt = parameter.getOptions2();

//        Object defaultValue = parameter.getDefaultValue();

//        if (value instanceof String) {

//            Object v = opt.getValue((String)value, defaultValue);

//            if(v != null){

//                return v;

//            } else if(defaultValue != null) {

//                return defaultValue;

//            } else {

//                throw new InvalidEntryException(null);

//            }

//        } else if(opt.isValidValue(value)){

//            return value;

//        } else {

//            throw new InvalidEntryException(null);

//        }

//    }

    @Override

    public void restart() throws StartServiceException, InvalidEntryException ,StopServiceException {

        this.stop();

        this.start();

    }

    @Override

    public void initDefaultValues() {

        List<EditingServiceParameter> parameters = this.getParameters();

        for (EditingServiceParameter parameter : parameters) {

            if(parameter.isOptional() && getValue(parameter)==null){

                try {

                    setValue(parameter, parameter.getDefaultValue());

                } catch (InvalidEntryException ex) {

                    LOGGER.debug("Can't init default value of "+parameter.getName(), ex);

                }

            }

        }

    }

    public List<Feature> getSelectedFeaturesCopy(FeatureSelection selection)  {

        SimpleTaskStatus status = ToolsLocator.getTaskStatusManager().createDefaultSimpleTaskStatus("Loading selection");

        try {

            status.add();

            status.setAutoremove(true);

            status.setRangeOfValues(0, selection.size());

            List<Feature> features = new ArrayList<>();

            DisposableIterator it = selection.fastIterator();

            while (it.hasNext()) {

                if( status.isCancellationRequested() ) {

                    status.cancel();

                    return features;

                }

                Feature feature = (Feature) it.next();

                if( feature.getDefaultGeometry()==null ) {

                    continue;

                }

                features.add(feature.getCopy());

                status.incrementCurrentValue();

            }

            status.terminate();

            return features;

        } catch (DataException ex) {

            status.abort();

            throw new RuntimeException("Can't calculate selected features", ex);

        }

    }

    @Override

    public boolean mustRestartAtFinish() {

        return true;

    }

}