Application: gvSIG desktop

/* gvSIG. Sistema de Informaci�n Geogr�fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib��ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package org.gvsig.sldsupport.layer;

import java.util.ArrayList;

import java.util.HashSet;

import java.util.Set;

import org.gvsig.sldsupport.feature.SLDLayerFeatureConstraints;

import org.gvsig.sldsupport.filterencoding.Filter;

import org.gvsig.sldsupport.rule.SLDRule;

import org.gvsig.sldsupport.style.AbstractSLDStyle;

import org.gvsig.sldsupport.style.SLDFeatureTypeStyle;

import org.gvsig.sldsupport.style.SLDUserStyle;

import org.gvsig.sldsupport.symbolizer.ISLDSymbolizer;

import org.gvsig.sldsupport.util.SLDUtils;

/**

 * Implements an abstract class for the different kinds of layer that supports SLD

 * implementation specification .<p>

 * The Name element identifies the well-known name of the layer being referenced, and is

 * required. All possible well-known names are usually identified in the capabilities

 * document for a server.<p>

 * The LayerFeatureConstraints element is optional in a NamedLayer and allows the

 * user to specify constraints on what features of what feature types are to be

 * selected by the named-layer reference. It is essentially a filter that allows the

 * selection of fewer features than are present in the named layer.<p>

 * A named styled layer can include any number of named styles and user-defined

 * styles,including zero, mixed in any order. If zero styles are specified, then

 * the default styling for the specified named layer is to be used.<p>

 * A named style, similar to a named layer, is referenced by a well-known name. A

 * particular named style only has meaning when used in conjunction with a particular

 * named layer. All available styles for each available layer are normally named in a

 * capabilities document.

 *

 * @see SLDNamedLayer

 * @see SLDUserLayer

 * @see http://portal.opengeospatial.org/files/?artifact_id=1188

 *

 * @author pepe vidal salvador - jose.vidal.salvador@iver.es

 */

public abstract class AbstractSLDLayer implements ISLDLayer {

        protected String name;

        protected ArrayList<SLDLayerFeatureConstraints>layerFeatureConstraints = new ArrayList<SLDLayerFeatureConstraints>();

        protected ArrayList<AbstractSLDStyle>layerStyles = new ArrayList<AbstractSLDStyle>();

        public ArrayList<ISLDSymbolizer> getSymbolizersByShapeType(int type) {

                ArrayList<ISLDSymbolizer> symbolizers = new ArrayList<ISLDSymbolizer>();

                for (int i = 0; i < this.getLayerStyles().size(); i++) {

                        if (getLayerStyles().get(i) instanceof SLDUserStyle) {

                                SLDUserStyle myStyle = (SLDUserStyle) this.getLayerStyles().get(i);

                                for (int k = 0; k < myStyle.getFeatureTypeStyle().size(); k++) {

                                        SLDFeatureTypeStyle myFeatureTypeStyle = myStyle.getFeatureTypeStyle().get(k);

                                        for (int s = 0; s < myFeatureTypeStyle.getRules().size(); s++) {

                                                SLDRule myRule = (SLDRule) myFeatureTypeStyle.getRules().get(s);

                                                if(SLDUtils.isLinear(type)) {

                                                        for (int j = 0; j < myRule.getLineSymbolizers().size(); j++) {

                                                                symbolizers.add(myRule.getLineSymbolizers().get(j));

                                                        }

                                                }

                                                else if(SLDUtils.isPolygonal(type)) {

                                                        for (int j = 0; j < myRule.getPolygonSymbolizers().size(); j++) {

                                                                symbolizers.add(myRule.getPolygonSymbolizers().get(j));

                                                        }

                                                }

                                                else if(SLDUtils.isPoint(type)) {

                                                        for (int j = 0; j < myRule.getPointSymbolizers().size(); j++) {

                                                                symbolizers.add(myRule.getPointSymbolizers().get(j));

                                                        }

                                                }

                                        }

                                }

                        }

                }

                return symbolizers;

        }

        public ArrayList<Filter> getLayerFilters() {

                ArrayList<Filter> layerFilter = new ArrayList<Filter>();

                for (int i = 0; i < this.getLayerStyles().size(); i++) {

                        if (this.getLayerStyles().get(i) instanceof SLDUserStyle) {

                                SLDUserStyle userStyle = (SLDUserStyle) this.getLayerStyles().get(i);

                                for (int j = 0; j < userStyle.getFeatureTypeStyle().size(); j++) {

                                        SLDFeatureTypeStyle featTypeStyle = userStyle.getFeatureTypeStyle().get(j);

                                        for (int k = 0; k < featTypeStyle.getRules().size(); k++) {

                                                SLDRule rule = (SLDRule) featTypeStyle.getRules().get(k);

                                                if (rule.getFilter() != null)

                                                        layerFilter.add(rule.getFilter());

                                        }

                                }

                        }

                }

                return layerFilter;

        }

        public String[] getFieldNames() {

                Set <String> l = new HashSet<String>();

                for (int i = 0; i < this.getLayerFilters().size(); i++) {

                        l.addAll(getLayerFilters().get(i).getFieldNames());

                }

                return l.toArray(new String[l.size()]);

        }

        public boolean layerHasFilterForSymbolizers(int shapeType) {

                for (int i = 0; i < getLayerStyles().size(); i++) {

                        if(getLayerStyles().get(i) instanceof SLDUserStyle) {

                                SLDUserStyle myStyle = (SLDUserStyle) getLayerStyles().get(i);

                                for (int j = 0; j < myStyle.getFeatureTypeStyle().size(); j++) {

                                        SLDFeatureTypeStyle myFeatureTypeStyle = myStyle.getFeatureTypeStyle().get(j);

                                        for (int k = 0; k < myFeatureTypeStyle.getRules().size(); k++) {

                                                SLDRule myRule = (SLDRule) myFeatureTypeStyle.getRules().get(k);

                                                if(myRule.hasFilter()) {

                                                        if(SLDUtils.isLinear(shapeType) && myRule.getLineSymbolizers().size() > 0)return true;

                                                        else if (SLDUtils.isPolygonal(shapeType) && myRule.getPolygonSymbolizers().size() > 0)return true;

                                                        else if (SLDUtils.isPoint(shapeType) && myRule.getPointSymbolizers().size() > 0)return true;

                                                }

                                        }

                                }

                        }

                }

                return false;

        }

        public boolean layerHasFilters() {

                for (int i = 0; i < getLayerStyles().size(); i++) {

                        if(getLayerStyles().get(i) instanceof SLDUserStyle) {

                                SLDUserStyle myStyle = (SLDUserStyle) getLayerStyles().get(i);

                                for (int j = 0; j < myStyle.getFeatureTypeStyle().size(); j++) {

                                        SLDFeatureTypeStyle myFeatureTypeStyle = myStyle.getFeatureTypeStyle().get(j);

                                        for (int k = 0; k < myFeatureTypeStyle.getRules().size(); k++) {

                                                SLDRule myRule = (SLDRule) myFeatureTypeStyle.getRules().get(k);

                                                if(myRule.hasFilter())return true;

                                        }

                                }

                        }

                }

                return false;

        }

        public boolean layerHasSymbolizers(int shapeType) {

                for (int i = 0; i < getLayerStyles().size(); i++) {

                        if(getLayerStyles().get(i) instanceof SLDUserStyle) {

                                SLDUserStyle myStyle = (SLDUserStyle) getLayerStyles().get(i);

                                for (int j = 0; j < myStyle.getFeatureTypeStyle().size(); j++) {

                                        SLDFeatureTypeStyle myFeatureTypeStyle = myStyle.getFeatureTypeStyle().get(j);

                                        for (int k = 0; k < myFeatureTypeStyle.getRules().size(); k++) {

                                                SLDRule myRule = (SLDRule) myFeatureTypeStyle.getRules().get(k);

                                                if(SLDUtils.isLinear(shapeType) && myRule.getLineSymbolizers().size() > 0)return true;

                                                else if (SLDUtils.isPolygonal(shapeType) && myRule.getPolygonSymbolizers().size() > 0)return true;

                                                else if (SLDUtils.isPoint(shapeType) && myRule.getPointSymbolizers().size() > 0)return true;

                                        }

                                }

                        }

                }

                return false;

        }

        public String getName() { return name; }

        public void setName(String name) { this.name = name; }

        public ArrayList<AbstractSLDStyle> getLayerStyles() { return layerStyles; }

        public void setLayerStyles(ArrayList<AbstractSLDStyle> layerStyles) { this.layerStyles = layerStyles; }

        public ArrayList<SLDLayerFeatureConstraints> getLayerFeatureConstraints() {return layerFeatureConstraints;}

        public void setLayerFeatureConstraints(ArrayList<SLDLayerFeatureConstraints> layerFeatureConstraints) {        this.layerFeatureConstraints = layerFeatureConstraints;        }

        public void addLayerFeatureConstraint(SLDLayerFeatureConstraints layerFeatureCons) {this.layerFeatureConstraints.add(layerFeatureCons);        }

        public void addLayerStyle(AbstractSLDStyle style) {this.layerStyles.add(style);}

}