rrenkert@243: /*
rrenkert@243:  * Copyright (c) 2011 by Intevation GmbH, Germany <info@intevation.de>
rrenkert@243:  *
rrenkert@243:  * This file is part of MXD2map.
rrenkert@243:  *
rrenkert@243:  * This program is free software under the LGPL (>=v2.1)
rrenkert@243:  * Read the file LICENCE.txt coming with the software for details
rrenkert@243:  * or visit http://www.gnu.org/licenses/ if it does not exist.
rrenkert@243:  *
rrenkert@243:  * MXD2map has been developed on behalf of the
rrenkert@243:  * Bundesamt fuer Seeschifffahrt und Hydrographie (BSH) in Hamburg
rrenkert@243:  * by Intevation GmbH.
rrenkert@243:  *
rrenkert@243:  * Authors:
rrenkert@243:  * Raimund Renkert <raimund.renkert@intevation.de>
rrenkert@243:  * Bjoern Schilberg <bjoern.schilberg@intevation.de>
rrenkert@243:  * Stephan Holl <stephan.holl@intevation.de>
rrenkert@243:  */
rrenkert@243: 
rrenkert@33: package de.intevation.mxd.reader;
rrenkert@25: 
rrenkert@74: import java.lang.Exception;
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.carto.ClassBreaksRenderer;
rrenkert@44: import com.esri.arcgis.display.ISymbol;
rrenkert@25: 
rrenkert@31: import org.w3c.dom.Element;
rrenkert@31: 
rrenkert@33: import de.intevation.mxd.utils.MapToXMLUtils;
rrenkert@116: import java.io.IOException;
rrenkert@33: 
rrenkert@25: /**
rrenkert@25:  * Reads the ClassBreaksRender Object Attributes.
rrenkert@25:  *
rrenkert@25:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
rrenkert@25:  */
rrenkert@31: public class ClassBreakRendererReader
rrenkert@31: implements IRendererReader {
rrenkert@25: 
rrenkert@31:     /**
rrenkert@31:      * The logger.
rrenkert@31:      */
rrenkert@25:     private static final Logger logger =
rrenkert@25:         Logger.getLogger(ClassBreakRendererReader.class);
rrenkert@25: 
rrenkert@31:     /**
rrenkert@31:      * Private member.
rrenkert@31:      */
rrenkert@25:     private ClassBreaksRenderer renderer;
rrenkert@31:     private Element layer;
rrenkert@31:     private MapToXMLUtils util;
rrenkert@25: 
rrenkert@181:     /**
rrenkert@181:      * Constructor with renderer.
rrenkert@181:      *
rrenkert@181:      * @param renderer The ArcGIS renderer.
rrenkert@181:      */
rrenkert@31:     public ClassBreakRendererReader(IFeatureRenderer renderer)
rrenkert@31:     throws Exception {
aheinecke@336:         logger.debug("constructor()");
rrenkert@25:         if(renderer instanceof ClassBreaksRenderer)
rrenkert@25:             this.renderer = (ClassBreaksRenderer)renderer;
rrenkert@25:         else
rrenkert@25:             throw new Exception("Not a ClassBreaksRenderer!");
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@25:     }
rrenkert@25: 
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 XML node.
rrenkert@31:      */
rrenkert@116:     public Element read() {
rrenkert@31:         logger.debug("read()");
rrenkert@31: 
rrenkert@116:         int count = 0;
rrenkert@116:         try {
rrenkert@116:             count = renderer.getBreakCount();
rrenkert@116:         }
rrenkert@116:         catch(IOException ioe) {
rrenkert@116:             logger.warn(
rrenkert@116:                 "No break symbols found in renderer." +
rrenkert@116:                 " Stopped reading this renderer.");
rrenkert@116:             return layer;
rrenkert@116:         }
rrenkert@74: 
rrenkert@116:         for(int i = 0; i < count; i++){
rrenkert@116:             Element rendererElement = util.addRenderer(layer);
rrenkert@116:             try {
rrenkert@116:                 rendererElement.setAttribute("value",
rrenkert@116:                     String.valueOf(renderer.getBreak(i)));
rrenkert@124:                 rendererElement.setAttribute("label", renderer.getLabel(i));
rrenkert@116:                 rendererElement.setAttribute(
rrenkert@116:                     "field_count",
rrenkert@116:                     String.valueOf(renderer.getFieldCount()));
rrenkert@116:                 for(int j = 0; j < renderer.getFieldCount(); j++) {
rrenkert@116:                     rendererElement.setAttribute(
rrenkert@116:                         "expression_field_" + j,
rrenkert@116:                         renderer.getField(j));
rrenkert@116: 
rrenkert@116:                 }
rrenkert@116:                 rendererElement.setAttribute(
rrenkert@116:                     "min_value",
rrenkert@126:                     String.valueOf(renderer.getLowBreak(i)));
rrenkert@116:                 rendererElement.setAttribute("expression_operator", "<=");
rrenkert@116: 
rrenkert@116:                 ISymbol sym = renderer.getSymbol(i);
rrenkert@116:                 MarkerSymbolReader markerReader = new MarkerSymbolReader();
rrenkert@116:                 LineSymbolReader lineReader = new LineSymbolReader();
rrenkert@116:                 FillSymbolReader fillReader = new FillSymbolReader();
rrenkert@116:                 if(markerReader.canRead(sym)) {
rrenkert@116:                     markerReader.setSymbol(sym);
rrenkert@116:                     markerReader.setUtil(util);
rrenkert@116:                     markerReader.setParent(rendererElement);
rrenkert@116:                     markerReader.read();
rrenkert@116:                 }
rrenkert@116:                 else if(lineReader.canRead(sym)) {
rrenkert@116:                     lineReader.setSymbol(sym);
rrenkert@116:                     lineReader.setUtil(util);
rrenkert@116:                     lineReader.setParent(rendererElement);
rrenkert@116:                     lineReader.read();
rrenkert@116:                 }
rrenkert@116:                 else if(fillReader.canRead(sym)) {
rrenkert@116:                     fillReader.setSymbol(sym);
rrenkert@116:                     fillReader.setUtil(util);
rrenkert@116:                     fillReader.setParent(rendererElement);
rrenkert@116:                     fillReader.read();
rrenkert@116:                 }
rrenkert@116:                 else {
rrenkert@116:                     logger.debug("Not a known symbol type: " +
rrenkert@116:                                  sym.getClass().toString());
rrenkert@116:                 }
rrenkert@74:             }
rrenkert@116:             catch(Exception e) {
rrenkert@116:                 logger.error(
rrenkert@116:                     "Could not read data for " + i +
rrenkert@116:                     ". break of renderer. Stopped reading this renderer.");
rrenkert@116:                 return layer;
rrenkert@44:             }
rrenkert@31:         }
rrenkert@44:         return layer;
rrenkert@25:     }
rrenkert@25: }
rrenkert@25: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :