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.featureform.swing.impl.dynformfield.selectableforeingkey;

import java.util.Objects;

import org.apache.commons.lang3.StringUtils;

import org.gvsig.featureform.swing.JFeaturesForm.FeaturesFormContext;

import org.gvsig.fmap.dal.StoresRepository;

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

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

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

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynform.DynFormFieldDefinition;

import org.gvsig.tools.dynform.JDynForm;

import org.gvsig.tools.dynform.JDynFormField;

import org.gvsig.tools.dynform.spi.DynFormSPIManager;

import org.gvsig.tools.dynform.spi.dynformfield.AbstractJDynFormFieldWithValueList;

import org.gvsig.tools.dynform.spi.dynformfield.JDynFormFieldFactory;

import org.gvsig.tools.dynobject.DynObjectValueItem;

@SuppressWarnings("UseSpecificCatch")

public class JDynFormFieldSelectableForeingKey extends AbstractJDynFormFieldWithValueList implements JDynFormField {

    public JDynFormFieldSelectableForeingKey(

            DynFormSPIManager serviceManager,

            DynFormSPIManager.ComponentsFactory componentsFactory,

            JDynFormFieldFactory factory,

            DynFormFieldDefinition definition,

            Object value

    ) {

        super(serviceManager, componentsFactory, factory, definition, value);

    }

    private ForeingKey getForeingKey() {

        JDynForm.DynFormContext context = this.getForm().getContext();

        if( !(context instanceof FeaturesFormContext) ) {

            return null;

        }

        FeatureType featureType = ((FeaturesFormContext)context).getFeatureType();

        if( featureType==null ) {

            return null;

        }

        FeatureAttributeDescriptor attribute = featureType.getAttributeDescriptor(this.getName());

        if( attribute == null ) {

            return null;

        }

        ForeingKey foreingKey = attribute.getForeingKey();

        return foreingKey;

    }

    @Override

    protected DynObjectValueItem[] getAvailableValues() {

        final ForeingKey foreingKey = this.getForeingKey();

        if( foreingKey==null || !foreingKey.isClosedList() ) {

            return null;

        }

        DynObjectValueItem[] values = foreingKey.getAvailableValues(null);

        return values;

    }

    @Override

    public boolean isModified() {

        String s = getValueFromJComponent();

        Object assigned = getAssignedValue();

        if (StringUtils.isBlank(s)) {

            return assigned != null;

        }

        try {

            Object value = this.getDefinition().coerce(s);

            return !Objects.equals(value, assigned);

        } catch (Exception ex) {

            return false;

        }

    }

}