rrenkert@36: package de.intevation.mxd.reader;
rrenkert@36: 
rrenkert@36: import org.apache.log4j.Logger;
rrenkert@36: 
rrenkert@36: import com.esri.arcgis.carto.ILayer;
rrenkert@36: import com.esri.arcgis.carto.GdbRasterCatalogLayer;
rrenkert@36: 
rrenkert@36: import org.w3c.dom.Element;
rrenkert@117: import java.io.IOException;
rrenkert@36: import de.intevation.mxd.utils.MapToXMLUtils;
rrenkert@36: 
rrenkert@36: /**
rrenkert@43:  * Reads Layer information.
rrenkert@36:  *
rrenkert@36:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
rrenkert@36:  */
rrenkert@43: public class GdbRasterCatalogLayerReader
rrenkert@43: implements ILayerReader {
rrenkert@36: 
rrenkert@36:     /**
rrenkert@36:      * The logger.
rrenkert@36:      */
rrenkert@36:     private static final Logger logger =
rrenkert@36:         Logger.getLogger(GdbRasterCatalogLayerReader.class);
rrenkert@36: 
rrenkert@36:     /**
rrenkert@36:      * Privte member.
rrenkert@36:      */
rrenkert@36:     private GdbRasterCatalogLayer  layer;
rrenkert@36:     private MapToXMLUtils util;
rrenkert@36: 
rrenkert@36: 
rrenkert@36:     public GdbRasterCatalogLayerReader(ILayer layer)
rrenkert@36:     throws Exception {
rrenkert@43:         if(layer instanceof GdbRasterCatalogLayer) {
rrenkert@36:             this.layer = (GdbRasterCatalogLayer)layer;
rrenkert@43:         }
rrenkert@43:         else {
rrenkert@36:             throw new Exception("Not an instance of GdbRastaCatalogLayer: " +
rrenkert@36:                 layer.getClass().toString());
rrenkert@43:         }
rrenkert@36:     }
rrenkert@36: 
rrenkert@36:     /**
rrenkert@36:      * Setter for XML document helper.
rrenkert@36:      *
rrenkert@36:      * @param util The helper for storing map information.
rrenkert@36:      */
rrenkert@43:     public void setUtil(MapToXMLUtils util) {
rrenkert@36:         this.util = util;
rrenkert@36:     }
rrenkert@36: 
rrenkert@36:     /**
rrenkert@36:      * Reads the Layer content.
rrenkert@36:      *
rrenkert@36:      * @return The layer XML element.
rrenkert@36:      */
rrenkert@118:     public Element read()
rrenkert@118:     throws IOException {
rrenkert@36:         logger.debug("read()");
rrenkert@36: 
rrenkert@117:         Element layerElement;
rrenkert@117:         try {
rrenkert@117:             layerElement = util.addLayer();
rrenkert@117:         }
rrenkert@117:         catch(Exception e) {
rrenkert@117:             logger.error(
rrenkert@117:                 "Could not create DOM element for layer." +
rrenkert@117:                 "Stopped reading layer.");
rrenkert@118:             throw new IOException(
rrenkert@118:                 this.getClass()+toString() +
rrenkert@118:                 "Error creating dom element");
rrenkert@117:         }
rrenkert@117: 
rrenkert@117:         try {
rrenkert@117:             layerElement.setAttribute("name", layer.getName());
rrenkert@117:         }
rrenkert@117:         catch(IOException ioe) {
rrenkert@117:             logger.warn(
rrenkert@117:                 "Could not read layer name. " +
rrenkert@117:                 "Setting layer name to \"default\".");
rrenkert@117:             layerElement.setAttribute("name", "default");
rrenkert@117:         }
rrenkert@117: 
rrenkert@117:         try {
rrenkert@117:             layerElement.setAttribute("min_scale",
rrenkert@117:                 String.valueOf(layer.getMinimumScale()));
rrenkert@117:         }
rrenkert@117:         catch(IOException ioe) {
rrenkert@117:             logger.warn(
rrenkert@117:                 "Could not read minimum layer scale." +
rrenkert@117:                 "Setting minimum layer scale to 1000");
rrenkert@117:             layerElement.setAttribute("min_scale", "1000");
rrenkert@117:         }
rrenkert@117: 
rrenkert@117:         try {
rrenkert@117:             layerElement.setAttribute("max_scale",
rrenkert@117:                 String.valueOf(layer.getMaximumScale()));
rrenkert@117:         }
rrenkert@117:         catch(IOException ioe) {
rrenkert@117:             logger.warn(
rrenkert@117:                 "Could not read maximum layer scale." +
rrenkert@117:                 "Setting maximum layer scale to 1000000");
rrenkert@117:             layerElement.setAttribute("max_scale", "1000000");
rrenkert@117:         }
rrenkert@117: 
rrenkert@117:         try {
rrenkert@117:             if(layer.isVisible()) {
rrenkert@117:                 layerElement.setAttribute("status", "on");
rrenkert@117:             }
rrenkert@117:             else {
rrenkert@117:                 layerElement.setAttribute("status", "off");
rrenkert@117:             }
rrenkert@117:         }
rrenkert@117:         catch(IOException ioe) {
rrenkert@117:             logger.warn(
rrenkert@117:                 "Could not read layer status." +
rrenkert@117:                 " Setting layer status to \"on\"");
rrenkert@36:             layerElement.setAttribute("status", "on");
rrenkert@36:         }
rrenkert@117: 
rrenkert@117:         try {
rrenkert@117:             layerElement.setAttribute("definition_query",
rrenkert@117:                 layer.getDefinitionExpression());
rrenkert@36:         }
rrenkert@117:         catch(IOException ioe) {
rrenkert@117:             logger.warn(
rrenkert@117:                 "Could not read layer definition query." +
rrenkert@117:                 "Setting empty definition query.");
rrenkert@117:             layerElement.setAttribute("definition_query", "");
rrenkert@117:         }
rrenkert@36:         return layerElement;
rrenkert@36:     }
rrenkert@36: }
rrenkert@36: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :