rrenkert@41: package de.intevation.mxd.writer;
rrenkert@41: 
rrenkert@41: import org.apache.log4j.Logger;
rrenkert@41: 
raimund@179: import java.awt.Color;
raimund@179: 
rrenkert@41: import org.w3c.dom.Document;
rrenkert@41: import org.w3c.dom.Element;
rrenkert@41: import org.w3c.dom.NodeList;
rrenkert@42: 
rrenkert@98: import java.io.File;
rrenkert@98: 
rrenkert@41: import javax.xml.xpath.XPathConstants;
rrenkert@41: 
rrenkert@41: import edu.umn.gis.mapscript.mapObj;
rrenkert@41: import edu.umn.gis.mapscript.layerObj;
rrenkert@42: import edu.umn.gis.mapscript.classObj;
raimund@179: import edu.umn.gis.mapscript.labelObj;
raimund@179: import edu.umn.gis.mapscript.colorObj;
raimund@179: import edu.umn.gis.mapscript.fontSetObj;
raimund@179: import edu.umn.gis.mapscript.hashTableObj;
rrenkert@42: 
rrenkert@41: import edu.umn.gis.mapscript.MS_UNITS;
rrenkert@42: import edu.umn.gis.mapscript.MS_LAYER_TYPE;
vc11884admin@130: import edu.umn.gis.mapscript.MS_CONNECTION_TYPE;
raimund@179: import edu.umn.gis.mapscript.MS_FONT_TYPE;
raimund@179: import edu.umn.gis.mapscript.MS_POSITIONS_ENUM;
rrenkert@41: 
rrenkert@41: import de.intevation.mxd.utils.XMLUtils;
rrenkert@41: 
rrenkert@41: /**
rrenkert@43:  * The Mapfile Writer.
rrenkert@43:  * This Writer uses the MapScript Java API to create Mapfiles from a DOM.
rrenkert@41:  *
rrenkert@41:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
rrenkert@41:  */
rrenkert@41: public class MapScriptWriter
rrenkert@41: implements IWriter
rrenkert@41: {
rrenkert@43:     /**
rrenkert@43:      * The Logger.
rrenkert@43:      */
rrenkert@43:     private static final Logger logger = Logger.getLogger(MapScriptWriter.class);
rrenkert@43: 
rrenkert@43:     /**
rrenkert@43:      * Private member.
rrenkert@43:      */
rrenkert@41:     private Document root;
rrenkert@41:     private mapObj map;
rrenkert@55:     private String mapFilename;
vc11884admin@130:     private String MS_BINDIR = "c:/ms_6.1-dev/bin";
vc11884admin@134:     private String prefix = "";
vc11884admin@170:     private MS_UNITS units = MS_UNITS.MS_METERS;
rrenkert@41: 
rrenkert@181:     /**
rrenkert@181:      * Default constructor.
rrenkert@181:      * Creates a mapscript writer object with an empty map.
rrenkert@181:      */
rrenkert@41:     public MapScriptWriter() {
rrenkert@55:         map = new mapObj("");
rrenkert@55:         mapFilename = "";
rrenkert@41:     }
rrenkert@41: 
rrenkert@181:     /**
rrenkert@181:      * Contructor with template and output filename.
rrenkert@181:      * Creates a mapscript writer object with the given template that saves the
rrenkert@181:      * map to the filename.
rrenkert@181:      *
rrenkert@181:      * @param templ    Mapfile template.
rrenkert@181:      * @param filename Output file name.
rrenkert@181:      */
rrenkert@55:     public MapScriptWriter(String templ, String filename) {
rrenkert@180:         String path = System.getProperty("user.dir");
rrenkert@55:         map = new mapObj(templ);
rrenkert@180:         File f = new File(filename);
rrenkert@180:         mapFilename = filename;
rrenkert@180:         if(f.isAbsolute()) {
raimund@174:             map.setMappath(mapFilename);
rrenkert@180:         }
rrenkert@180:         else {
rrenkert@180:             map.setMappath(
rrenkert@180:                 System.getProperty("user.dir") +
rrenkert@180:                 File.separator +
rrenkert@180:                 mapFilename);
rrenkert@180:             mapFilename = System.getProperty("user.dir") +
rrenkert@180:                 File.separator +
rrenkert@180:                 mapFilename;
rrenkert@180:         }
rrenkert@180:         String fontSetPath = map.getFontset().getFilename();
rrenkert@180:         File fonts = new File(fontSetPath);
rrenkert@180:         String fontSet = fonts.getAbsolutePath();
rrenkert@180:         fontSet = fontSet.replaceAll("\\\\", "/");
rrenkert@180:         map.setFontSet(fontSet);
rrenkert@41:     }
rrenkert@41: 
rrenkert@43:     /**
rrenkert@43:      * Write the mapfile.
rrenkert@43:      * @param doc The root document containin the map attributes.
rrenkert@43:      *
rrenkert@43:      * @return Currently always true.
rrenkert@43:      */
rrenkert@120:     public boolean write(Document doc) {
rrenkert@41:         logger.debug("write()");
rrenkert@41:         this.root = doc;
rrenkert@41: 
rrenkert@41:         //Get the filename.
rrenkert@41:         Element fileNode = (Element)XMLUtils.xpath(
rrenkert@41:             root,
rrenkert@41:             "/mxd/file",
rrenkert@41:             XPathConstants.NODE);
rrenkert@41:         //Write the map attributes.
rrenkert@41:         writeMap();
rrenkert@42:         //Write the layers.
rrenkert@42:         writeLayer();
rrenkert@41:         //Save the map.
rrenkert@42:         mapObj cloneMap = map.cloneMap();
raimund@174: 
rrenkert@180:         cloneMap.save(mapFilename);
raimund@174:         logger.info("Mapfile created: " + mapFilename);
rrenkert@41:         return true;
rrenkert@41:     }
rrenkert@41: 
rrenkert@43:     /**
rrenkert@43:      * Create the map object and set the attributes.
rrenkert@43:      */
rrenkert@41:     private void writeMap() {
rrenkert@41:         logger.debug("writeMap()");
rrenkert@41:         //Get the map.
rrenkert@41:         Element mapNode = (Element)XMLUtils.xpath(
rrenkert@41:             root,
rrenkert@41:             "/mxd/map",
rrenkert@41:             XPathConstants.NODE);
rrenkert@41: 
rrenkert@41:         //Set the name.
rrenkert@41:         map.setName(mapNode.getAttribute("name"));
rrenkert@42:         map.setMetaData("wms_title", mapNode.getAttribute("name"));
rrenkert@41:         //Set the extent.
rrenkert@41:         map.setExtent(
rrenkert@41:             Double.parseDouble(mapNode.getAttribute("extent_min_x")),
rrenkert@41:             Double.parseDouble(mapNode.getAttribute("extent_min_y")),
rrenkert@41:             Double.parseDouble(mapNode.getAttribute("extent_max_x")),
rrenkert@41:             Double.parseDouble(mapNode.getAttribute("extent_max_y")));
rrenkert@41: 
vc11884admin@172:         //Set the units and projection.
rrenkert@180:         int proj = Integer.parseInt(mapNode.getAttribute("projection"));
rrenkert@180:         if(proj != 0) {
rrenkert@180:             map.setProjection("epsg:" + mapNode.getAttribute("projection"));
rrenkert@180:         }
vc11884admin@170:         String u = mapNode.getAttribute("units");
vc11884admin@170:         if(u.equals("feet")) {
vc11884admin@170:             units = MS_UNITS.MS_FEET;
rrenkert@41:         }
vc11884admin@170:         else if(u.equals("inches")) {
vc11884admin@170:             units = MS_UNITS.MS_INCHES;
rrenkert@41:         }
vc11884admin@170:         else if(u.equals("kilometers")) {
vc11884admin@170:             units = MS_UNITS.MS_KILOMETERS;
rrenkert@41:         }
vc11884admin@170:         else if(u.equals("meters")) {
vc11884admin@170:             units = MS_UNITS.MS_METERS;
rrenkert@41:         }
vc11884admin@170:         else if(u.equals("miles")) {
vc11884admin@170:             units = MS_UNITS.MS_MILES;
vc11884admin@170:         }
vc11884admin@170:         else if(u.equals("nauticalmiles")) {
vc11884admin@170:             units = MS_UNITS.MS_NAUTICALMILES;
vc11884admin@170:         }
vc11884admin@170:         else if(u.equals("points")) {
vc11884admin@170:             units = MS_UNITS.MS_PIXELS;
vc11884admin@170:         }
rrenkert@180:         else if(u.equals("degree")) {
rrenkert@180:             units = MS_UNITS.MS_DD;
rrenkert@180:         }
rrenkert@41:         else {
vc11884admin@170:             units = MS_UNITS.MS_METERS;
rrenkert@41:         }
vc11884admin@170:         map.setUnits(units);
rrenkert@41:     }
rrenkert@41: 
rrenkert@43:     /**
rrenkert@43:      * Create layer objects and set the attributes.
rrenkert@43:      */
rrenkert@120:     private void writeLayer() {
rrenkert@42:         logger.debug("writeLayer()");
rrenkert@42:         Element mapNode = (Element)XMLUtils.xpath(
rrenkert@42:             root,
rrenkert@42:             "/mxd/map",
rrenkert@42:             XPathConstants.NODE);
rrenkert@42:         NodeList list = mapNode.getElementsByTagName("layer");
rrenkert@42:         for(int i = 0; i < list.getLength(); i++) {
rrenkert@42:             Element layerElement = (Element)list.item(i);
rrenkert@42:             layerObj layer = new layerObj(map);
rrenkert@42: 
rrenkert@42:             //The layer name.
rrenkert@137:             String lname = layerElement.getAttribute("name");
rrenkert@137:             lname = lname.replaceAll(" ", "");
raimund@189:             layer.setName(validateString(lname));
rrenkert@180:             layer.setUnits(units.swigValue());
raimund@189:             layer.setMetaData("wms_title", validateString(lname));
vc11884admin@148:             if(layerElement.hasAttribute("group")) {
raimund@189: 		String group = layerElement.getAttribute("group");
raimund@189:                 layer.setGroup(validateString(group));
rrenkert@180:             }
rrenkert@180: 
rrenkert@42:             //The layer status.
rrenkert@42:             String stat = layerElement.getAttribute("status");
rrenkert@42:             if (stat.equals("on")) {
rrenkert@42:                 layer.setStatus(1);
rrenkert@42:             }
rrenkert@42:             else {
rrenkert@42:                 layer.setStatus(0);
rrenkert@42:             }
rrenkert@42: 
rrenkert@42:             //The scale.
rrenkert@145:             double maxScale = 0;
rrenkert@145:             double minScale = 0;
rrenkert@145:             try {
rrenkert@145:                 maxScale =
vc11884admin@153:                     Double.parseDouble(layerElement.getAttribute("min_scale"));
vc11884admin@153:                 minScale =
rrenkert@145:                     Double.parseDouble(layerElement.getAttribute("max_scale"));
rrenkert@145:             }
rrenkert@145:             catch(NumberFormatException nfe) {
rrenkert@145:                 logger.warn("Error setting scale.");
rrenkert@145:                 maxScale = 0;
rrenkert@145:                 minScale = 0;
rrenkert@145:             }
rrenkert@42:             layer.setMaxscaledenom(maxScale);
rrenkert@42:             layer.setMinscaledenom(minScale);
rrenkert@42: 
rrenkert@42:             //The layer type.
rrenkert@42:             String type = layerElement.getAttribute("type");
rrenkert@42:             if(type.equals("point")) {
rrenkert@42:                 layer.setType(MS_LAYER_TYPE.MS_LAYER_POINT);
rrenkert@42:             }
rrenkert@62:             else if (type.equals("line")) {
rrenkert@62:                 layer.setType(MS_LAYER_TYPE.MS_LAYER_LINE);
rrenkert@62:             }
rrenkert@97:             else if (type.equals("polygon")) {
rrenkert@97:                 layer.setType(MS_LAYER_TYPE.MS_LAYER_POLYGON);
rrenkert@97:             }
rrenkert@102:             layer.setTileitem("");
rrenkert@42: 
rrenkert@42:             //The layer datasource.
rrenkert@137:             String con_type = layerElement.getAttribute("connection_type");
vc11884admin@134:             if(con_type.equals("local")) {
rrenkert@181:                 // The data source is a local file. (.shp)
vc11884admin@130:                 String datasource = "";
vc11884admin@130:                 if(layerElement.hasAttribute("workspace")) {
vc11884admin@130:                     datasource = layerElement.getAttribute("workspace");
vc11884admin@130:                     datasource += File.separator;
vc11884admin@130:                 }
vc11884admin@130:                 datasource += layerElement.getAttribute("data_source");
rrenkert@180:                 datasource = datasource.replaceAll("\\\\", "/");
vc11884admin@130:                 layer.setData(datasource);
rrenkert@137:             }
rrenkert@137:             else if(con_type.equals("SDE")) {
rrenkert@181:                 // The data source is a sde database.
rrenkert@137:                 logger.info(
rrenkert@137:                     "SDE datasource found." +
rrenkert@137:                     " Please edit password in mapfile.");
rrenkert@137:                 layer.setConnectionType(
rrenkert@137:                 MS_CONNECTION_TYPE.MS_PLUGIN.swigValue(),
rrenkert@137:                 MS_BINDIR + "/ms/plugins/msplugin_sde_93.dll");
vc11884admin@130:                 layer.setConnection(
rrenkert@137:                 layerElement.getAttribute("server") + "," +
rrenkert@137:                     "port:" + layerElement.getAttribute("instance") + "," +
rrenkert@137:                 layerElement.getAttribute("database") + "," +
rrenkert@137:                 layerElement.getAttribute("user") + ",<PASSWORD>");
rrenkert@137:                 layer.setData(
rrenkert@137:                     layerElement.getAttribute("data_source") +
rrenkert@137:                     ",SHAPE," +
rrenkert@137:                     layerElement.getAttribute("version"));
rrenkert@137:                 layer.setProcessing("CLOSE_CONNECTION=defer");
vc11884admin@134:                 layer.setProcessing("ATTRIBUTE_QUALIFIED=TRUE");
rrenkert@137:                 if(layerElement.hasAttribute("join_table")) {
vc11884admin@134:                     layer.setProcessing(
rrenkert@137:                         "JOINTABLE=" +
rrenkert@137:                     layerElement.getAttribute("join_table"));
vc11884admin@134:                     layer.setFilter(
vc11884admin@134:                         "where " + 
vc11884admin@134:                         layerElement.getAttribute("definition_query") +
vc11884admin@134:                         " AND " +
vc11884admin@134:                         layerElement.getAttribute("join_table_target") + "." +
vc11884admin@134:                         layerElement.getAttribute("join_field_target") + "=" +
vc11884admin@134:                         layerElement.getAttribute("join_table") + "." +
vc11884admin@134:                         layerElement.getAttribute("join_field"));
rrenkert@137:                 }
rrenkert@137:                 else {
rrenkert@137:                     prefix = layerElement.getAttribute("data_source");
rrenkert@180:                     if(layerElement.hasAttribute("definition_query") &&
rrenkert@180:                        !layerElement.getAttribute("definition_query")
rrenkert@180:                                      .equals("")) {
rrenkert@180:                         layer.setFilter("where " +
rrenkert@180:                         layerElement.getAttribute("definition_query"));
rrenkert@180:                     }
rrenkert@137:                 }
rrenkert@137:             }
rrenkert@129:             layer.setTemplate("PleaseInsertAValidTemplateForGFI");
raimund@179: 
rrenkert@181:             // Create labelitem
rrenkert@180:             NodeList labels = layerElement.getElementsByTagName("label");
rrenkert@180:             if(labels.getLength() > 0) {
rrenkert@180:                 Element label = (Element)labels.item(0);
raimund@179:                 String expr = label.getAttribute("expression");
rrenkert@180:                 expr = expr.replaceAll("\\[", "");
rrenkert@180:                 expr = expr.replaceAll("\\]", "");
rrenkert@180:                 if(!prefix.equals("")) {
rrenkert@180:                     expr = prefix + "." + expr;
rrenkert@180:                 }
rrenkert@180:                 layer.setLabelitem(expr);
rrenkert@180:             }
rrenkert@180: 
rrenkert@42:             //Write classes.
rrenkert@42:             writeClass(layer, layerElement);
rrenkert@42:         }
rrenkert@41:     }
rrenkert@41: 
rrenkert@42:     /**
rrenkert@42:      * Adds the classes to the layer.
rrenkert@42:      * @param layer        Mapscript layer object.
rrenkert@42:      * @param layerElement Dom element containing the class attributes.
rrenkert@42:      */
rrenkert@120:     private void writeClass(layerObj layer, Element layerElement) {
rrenkert@87:         logger.debug("writeClass(layerObj, Element)");
rrenkert@42:         //Get all renderer elements (renderer in arcgis equals class in the
rrenkert@42:         //mapfile.)
rrenkert@42:         NodeList list = layerElement.getElementsByTagName("renderer");
rrenkert@41: 
rrenkert@42:         //Create all found class objects and write the symbols and styles for
rrenkert@42:         //each class.
rrenkert@42:         for(int i = 0; i < list.getLength(); i++) {
rrenkert@42:             Element classElement = (Element)list.item(i);
rrenkert@42:             classObj co = new classObj(layer);
rrenkert@124:             String name = classElement.getAttribute("label");
raimund@189: 	    name = validateString(name);
rrenkert@99:             if (name.equals("")) {
rrenkert@99:                 name = layerElement.getAttribute("name");
raimund@189: 		name = validateString(name);
rrenkert@99:                 if (list.getLength() > 1) {
rrenkert@99:                     name += "-" + i;
rrenkert@99:                 }
rrenkert@99:             }
rrenkert@99:             co.setName (name);
raimund@179: 
rrenkert@181:             //Create label object.
rrenkert@180:             NodeList labels = layerElement.getElementsByTagName("label");
rrenkert@180:             if(labels.getLength() > 0) {
rrenkert@180:                 Element labelElement = (Element)labels.item(0);
rrenkert@180:                 String  layerType = layerElement.getAttribute("type");
rrenkert@180:                 writeLabel(co, labelElement, layerType);
rrenkert@180:             }
rrenkert@181: 
rrenkert@181:             //Create definition expression.
rrenkert@44:             if(classElement.hasAttribute("field_count")) {
vc11884admin@152:                 co.setExpression(createExpression(classElement, i));
rrenkert@44:             }
rrenkert@181: 
rrenkert@42:             //Write symbols and styles.
rrenkert@97:             NodeList l = classElement.getChildNodes();
vc11884admin@141:             for (int j = l.getLength() - 1; j >= 0; j--) {
rrenkert@97:                 Element elem = (Element)l.item(j);
rrenkert@97: 
rrenkert@97:                 String type = layerElement.getAttribute("type");
rrenkert@180:                 if(type.equals("point") &&
rrenkert@180:                    elem.getTagName().equals("symbol")) {
rrenkert@180:                     MarkerStyleWriter swriter =
rrenkert@180:                         new MarkerStyleWriter (this.map, co);
rrenkert@97:                     swriter.write (elem);
rrenkert@87:                 }
rrenkert@180:                 else if(type.equals("line") &&
rrenkert@180:                         elem.getTagName().equals("symbol")) {
rrenkert@180:                     LineStyleWriter swriter =
rrenkert@180:                         new LineStyleWriter (this.map, co);
rrenkert@97:                     swriter.write (elem);
rrenkert@97:                 }
rrenkert@180:                 else if(type.equals("polygon") &&
rrenkert@180:                         elem.getTagName().equals("symbol")) {
rrenkert@180:                     FillStyleWriter swriter =
rrenkert@180:                         new FillStyleWriter (this.map, co);
rrenkert@97:                     swriter.write (elem);
rrenkert@87:                 }
rrenkert@87:             }
rrenkert@42:         }
rrenkert@41:     }
rrenkert@126: 
rrenkert@181:     /**
rrenkert@181:      * Create a label object in a class object.
rrenkert@181:      *
rrenkert@181:      * @param co Class object.
rrenkert@181:      * @param labelElement DOM element containing label attributes.
rrenkert@181:      * @param layertype The layer type. Used to define the label position.
rrenkert@181:      */
raimund@179:     private void writeLabel(
rrenkert@180:         classObj co,
rrenkert@180:         Element labelElement,
rrenkert@180:         String layerType) {
raimund@179: 
rrenkert@181:         //Get the label object. Each class has a predefined labelobject.
raimund@179:         labelObj label = co.getLabel();
rrenkert@181: 
rrenkert@181:         //Get the label text symbol attributes from DOM.
rrenkert@180:         Element symbol = (Element)labelElement.getFirstChild();
rrenkert@180:         if(symbol != null && symbol.getTagName().equals("symbol")) {
rrenkert@180:             String type = symbol.getAttribute("type");
rrenkert@180:             if(type.equals("text")) {
rrenkert@180:                 label.setType(MS_FONT_TYPE.MS_TRUETYPE);
rrenkert@180:             }
rrenkert@180:             label.setSize(Double.parseDouble(symbol.getAttribute("size")));
rrenkert@180: 
raimund@179:             if(symbol.hasAttribute("color")) {
raimund@179:                 String c = symbol.getAttribute("color");
raimund@179:                 Color col = Color.decode(c);
raimund@179:                 colorObj color = new colorObj(
raimund@179:                     col.getRed(),
raimund@179:                     col.getGreen(),
raimund@179:                     col.getBlue(),
raimund@179:                     -4);
raimund@179:                 label.setColor(color);
rrenkert@180:             }
rrenkert@180:             if(symbol.hasAttribute("font")) {
rrenkert@180:                 String font = symbol.getAttribute("font");
rrenkert@180:                 fontSetObj fso = this.map.getFontset();
rrenkert@180:                 hashTableObj fonts = fso.getFonts();
rrenkert@180:                 String mapFont = fonts.get(font,"");
rrenkert@180:                 if(mapFont != null && !mapFont.equals("")) {
rrenkert@180:                     label.setFont(font);
rrenkert@180:                 }
rrenkert@180:                 else {
rrenkert@180:                     logger.info(
rrenkert@180:                         "Could not find font " + font + " in font set. " +
rrenkert@180:                         "Using FreeSans for labels.");
rrenkert@180:                         label.setFont("FreeSans");
rrenkert@180:                 }
rrenkert@180:             }
raimund@179: 
raimund@179:             if(labelElement.hasAttribute("max_scale")) {
rrenkert@180:                 double min =
rrenkert@180:                     Double.parseDouble(labelElement.getAttribute("max_scale"));
rrenkert@180:                 if(min > 0) {
rrenkert@180:                     label.setMinscaledenom(min);
rrenkert@180:                 }
rrenkert@180:             }
rrenkert@180:             if(labelElement.hasAttribute("min_scale")) {
rrenkert@180:                 double max =
rrenkert@180:                     Double.parseDouble(labelElement.getAttribute("min_scale"));
rrenkert@180:                 if(max > 0) {
rrenkert@180:                     label.setMaxscaledenom(max);
rrenkert@180:                 }
rrenkert@180:             }
raimund@179: 
rrenkert@181:             //Set the label position.
rrenkert@180:             if(layerType.equals("point")) {
rrenkert@180:                 label.setPosition(MS_POSITIONS_ENUM.MS_UC.swigValue());
rrenkert@180:             }
rrenkert@180:         }
raimund@179:     }
raimund@179: 
rrenkert@181:     /**
rrenkert@181:      * Create definition expression.
rrenkert@181:      *
rrenkert@181:      * @param ce DOM elementcontaining the class expression information.
rrenkert@181:      * @param index Index to determine the correct expression operator.
rrenkert@181:      */
vc11884admin@152:     private String createExpression(Element ce, int index) {
rrenkert@137:         String expression = "(";
rrenkert@137:         int count = 0;
rrenkert@137:         try {
rrenkert@137:             count = Integer.parseInt(ce.getAttribute("field_count"));
rrenkert@137:         }
rrenkert@137:         catch(NumberFormatException nfe) {
rrenkert@137:             return "";
rrenkert@137:         }
rrenkert@181: 
rrenkert@137:         if(count == 1) {
rrenkert@181:            //Create single field expression.
rrenkert@181:            try {
rrenkert@181:                 //If no exception is thrown, the expression value is a number.
vc11884admin@134:                 Double.parseDouble(ce.getAttribute("value"));
rrenkert@137:                 String exp = ce.getAttribute("expression_field_0");
rrenkert@137:                 String pre = "";
rrenkert@137:                 if (!prefix.equals("") && !exp.startsWith(prefix)) {
vc11884admin@134:                     pre = prefix + ".";
rrenkert@137:                 }
rrenkert@137:                 expression += "[" + pre;
rrenkert@137:                 expression += ce.getAttribute("expression_field_0") + "]";
rrenkert@137:                 if(ce.hasAttribute("min_value")) {
rrenkert@180:                     if(index == 0) {
rrenkert@180:                         expression += " >= " + ce.getAttribute("min_value");
rrenkert@180:                     }
rrenkert@180:                     else {
vc11884admin@152:                         expression += " > " + ce.getAttribute("min_value");
rrenkert@180:                     }
rrenkert@181:                     expression += " AND [" + pre;
rrenkert@181:                     expression += ce.getAttribute("expression_field_0");
rrenkert@181:                     expression += "]";
rrenkert@137:                 }
rrenkert@137:                 expression += " " + ce.getAttribute("expression_operator");
rrenkert@137:                 expression += " " + ce.getAttribute("value") + ")";
rrenkert@137:             }
rrenkert@137:             catch(NumberFormatException nfe) {
rrenkert@181:                 //The expression value is a strings.
rrenkert@137:                 String exp = ce.getAttribute("expression_field_0");
rrenkert@137:                 String pre = "";
rrenkert@137:                 if (!prefix.equals("") && !exp.startsWith(prefix)) {
vc11884admin@134:                     pre = prefix + ".";
rrenkert@137:                 }
rrenkert@137:                 expression += "\"[" + pre;
rrenkert@137:                 expression += ce.getAttribute("expression_field_0") + "]\"";
rrenkert@137:                 expression += " " + ce.getAttribute("expression_operator");
rrenkert@137:                 expression += " \"" + ce.getAttribute("value") + "\")";	
rrenkert@137:             }
rrenkert@137:             catch(Exception e) {
rrenkert@137:                 e.printStackTrace();
rrenkert@137:             }
rrenkert@137:         }
rrenkert@137:         else {
rrenkert@181:             //Create a multi field expression.
vc11884admin@134:             for (int i = 0; i < count; i++) {
vc11884admin@134:                 try {
rrenkert@181:                     //If no exception is thrown, the expression values are
rrenkert@181:                     //numbers.
vc11884admin@134:                     Double.parseDouble(ce.getAttribute("value_" + i));
vc11884admin@134:                     String exp = ce.getAttribute("expression_field_" + i);
vc11884admin@134:                     String pre = "";
vc11884admin@134:                     if (!prefix.equals("") && !exp.startsWith(prefix)) {
vc11884admin@134:                        pre = prefix + ".";
vc11884admin@134:                     }
vc11884admin@134:                     expression += "[" + pre;
rrenkert@180:                     expression += ce.getAttribute("expression_field_" + i);
rrenkert@180:                     expression += "]";
vc11884admin@134:                     expression += " " + ce.getAttribute("expression_operator");
vc11884admin@134:                     expression += " " + ce.getAttribute("value_" + i);
rrenkert@137:                     if (i < count - 1) {
rrenkert@137:                         expression += " AND ";
rrenkert@137:                     }
rrenkert@137:                     else {
rrenkert@137:                         expression += ")";
rrenkert@137:                     }
rrenkert@137:                 }
rrenkert@137:                 catch (NumberFormatException nfe) {
rrenkert@181:                     //The expression values are strings.
rrenkert@137:                     String exp = ce.getAttribute("expression_field_" + i);
vc11884admin@134:                     String pre = "";
vc11884admin@134:                     if (!prefix.equals("") && !exp.startsWith(prefix)) {
vc11884admin@134:                        pre = prefix + ".";
vc11884admin@134:                     }
vc11884admin@134:                     expression += "\"[" + pre;
rrenkert@180:                     expression += ce.getAttribute("expression_field_" + i);
rrenkert@180:                     expression += "]\"";
vc11884admin@134:                     expression += " " + ce.getAttribute("expression_operator");
raimund@186:                     expression += " \"" + ce.getAttribute("value_" + i);
rrenkert@137:                     if (i < count - 1) {
raimund@186:                         expression += "\" AND ";
rrenkert@137:                     }
rrenkert@137:                     else {
raimund@186:                         expression += "\")";
rrenkert@137:                     }
rrenkert@126:                 }
rrenkert@126:             }
rrenkert@126:         }
rrenkert@137:         return expression;
rrenkert@127:     }
raimund@189: 
raimund@189:     /**
raimund@189:      * Replaces german umlauts and removes leading and trailing whitespaces.
raimund@189:      *
raimund@189:      * @param s String
raimund@189:      */
raimund@189:     private String validateString (String s) {
raimund@189:         if (s.equals("")) {
raimund@189:             return "";
raimund@189:         }
raimund@189:         String tmp = s.trim();
raimund@189:         tmp = tmp.replace ("ö", "oe");
raimund@189:         tmp = tmp.replace ("ä", "ae");
raimund@189:         tmp = tmp.replace ("ü", "ue");
raimund@189:         tmp = tmp.replace ("ß", "ss");
raimund@189:         return tmp;
raimund@189:     }
rrenkert@41: }