rrenkert@33: package de.intevation.mxd.reader;
rrenkert@25: 
rrenkert@25: import java.io.IOException;
rrenkert@25: 
rrenkert@25: import org.apache.log4j.Logger;
rrenkert@25: 
rrenkert@25: import com.esri.arcgis.carto.IFeatureRenderer;
rrenkert@25: import com.esri.arcgis.display.ISymbol;
rrenkert@25: import com.esri.arcgis.carto.UniqueValueRenderer;
rrenkert@25: 
rrenkert@31: import org.w3c.dom.Element;
rrenkert@31: 
rrenkert@33: import de.intevation.mxd.utils.MapToXMLUtils;
rrenkert@33: 
rrenkert@25: /**
rrenkert@25:  * Reads unique vaule renderer information.
rrenkert@25:  *
rrenkert@25:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
rrenkert@25:  */
rrenkert@31: public class UniqueValueRendererReader
rrenkert@31: implements IRendererReader {
rrenkert@25: 
rrenkert@31:     /**
rrenkert@31:      * The logger.
rrenkert@31:      */
rrenkert@31:     private static final Logger logger =
rrenkert@31:         Logger.getLogger(FeatureLayerReader.class);
rrenkert@25: 
rrenkert@31:     /**
rrenkert@31:      * Private Member.
rrenkert@31:      */
rrenkert@31:     private UniqueValueRenderer renderer;
rrenkert@31:     private Element layer;
rrenkert@31:     private MapToXMLUtils util;
rrenkert@25: 
rrenkert@25: 
rrenkert@31:     public UniqueValueRendererReader(IFeatureRenderer renderer)
rrenkert@31:     throws Exception {
rrenkert@31:         logger.debug("constructor()");
rrenkert@31:         if (renderer instanceof UniqueValueRenderer) {
rrenkert@31:             this.renderer = (UniqueValueRenderer)renderer;
rrenkert@25:         }
rrenkert@31:         else {
rrenkert@31:             throw new Exception ("Not an instance of UniqueValueRenderer.");
rrenkert@31:         }
rrenkert@25:     }
rrenkert@25: 
rrenkert@31:     /**
rrenkert@31:      * Setter for the parent XML element.
rrenkert@31:      *
rrenkert@31:      * @param parent The XML parent node.
rrenkert@31:      */
rrenkert@31:     public void setParent(Element parent) {
rrenkert@31:         this.layer = parent;
rrenkert@31:     }
rrenkert@31: 
rrenkert@31:     /**
rrenkert@31:      * Setter for XML document helper.
rrenkert@31:      *
rrenkert@31:      * @param util The helper class for storing map information.
rrenkert@31:      */
rrenkert@31:     public void setUtil(MapToXMLUtils util) {
rrenkert@31:         this.util = util;
rrenkert@31:     }
rrenkert@31: 
rrenkert@31:     /**
rrenkert@31:      * Reads the renderer attributes.
rrenkert@31:      *
rrenkert@31:      * @return The parent XML node.
rrenkert@31:      */
rrenkert@31:     public Element read()
rrenkert@31:     throws IOException {
rrenkert@31:         logger.debug("read()");
rrenkert@31:         for(int i = 0; i < renderer.getClassCount() - 1; i++) {
rrenkert@31:             Element rendererElement;
rrenkert@31:             try {
rrenkert@31:                 rendererElement = util.addRenderer(layer);
rrenkert@44: 
rrenkert@44:                 String value = renderer.getValue(i);
rrenkert@44:                 rendererElement.setAttribute("name", renderer.esri_getClass(i));
rrenkert@44:                 rendererElement.setAttribute("description",
rrenkert@44:                 renderer.getDescription(value));
rrenkert@44:                 rendererElement.setAttribute("value", value);
rrenkert@44:                 rendererElement.setAttribute("label", renderer.getLabel(value));
rrenkert@44:                 rendererElement.setAttribute(
rrenkert@44:                     "field_count",
rrenkert@44:                     String.valueOf(renderer.getFieldCount()));
rrenkert@44:                 for(int j = 0; j < renderer.getFieldCount(); j++) {
rrenkert@44:                     rendererElement.setAttribute(
rrenkert@44:                         "expression_field_" + j,
rrenkert@44:                         renderer.getField(j));
rrenkert@44:                 }
rrenkert@44:                 rendererElement.setAttribute("expression_operator", "=");
rrenkert@73: 
rrenkert@73:                 ISymbol sym = renderer.getSymbol(value);
rrenkert@73:                 MarkerSymbolReader markerReader = new MarkerSymbolReader();
rrenkert@73:                 LineSymbolReader lineReader = new LineSymbolReader();
rrenkert@73:                 FillSymbolReader fillReader = new FillSymbolReader();
rrenkert@73:                 if(markerReader.canRead(sym)) {
rrenkert@73:                     markerReader.setSymbol(sym);
rrenkert@73:                     markerReader.setUtil(util);
rrenkert@73:                     markerReader.setParent(rendererElement);
rrenkert@73:                     markerReader.read();
rrenkert@73:                 }
rrenkert@73:                 else if(lineReader.canRead(sym)) {
rrenkert@73:                     lineReader.setSymbol(sym);
rrenkert@73:                     lineReader.setUtil(util);
rrenkert@73:                     lineReader.setParent(rendererElement);
rrenkert@73:                     lineReader.read();
rrenkert@73:                 }
rrenkert@73:                 else if(fillReader.canRead(sym)) {
rrenkert@73:                     fillReader.setSymbol(sym);
rrenkert@73:                     fillReader.setUtil(util);
rrenkert@73:                     fillReader.setParent(rendererElement);
rrenkert@73:                     fillReader.read();
rrenkert@73:                 }
rrenkert@73:                 else {
rrenkert@73:                     logger.debug("Not a known symbol type: " +
rrenkert@73:                                  sym.getClass().toString());
rrenkert@73:                 }
rrenkert@31:             }
rrenkert@31:             catch(Exception e) {
rrenkert@31:                 e.printStackTrace();
rrenkert@31:                 return null;
rrenkert@31:             }
rrenkert@31:         }
rrenkert@31:         return layer;
rrenkert@25:     }
rrenkert@25: }
rrenkert@25: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :