--- a/gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java	Sun Dec 27 05:25:40 2009 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/artifacts/context/GNVArtifactContextFactory.java	Mon Dec 28 11:50:27 2009 +0000
@@ -11,6 +11,7 @@
 
 import java.util.Properties;
 import java.util.HashMap;
+import java.util.ArrayList;
 
 import org.apache.log4j.Logger;
 
@@ -29,6 +30,7 @@
 import de.intevation.gnv.artifacts.cache.CacheFactory;
 
 import de.intevation.gnv.raster.Palette;
+import de.intevation.gnv.raster.PaletteManager;
 
 import de.intevation.artifacts.ArtifactContextFactory;
 
@@ -160,7 +162,7 @@
     ) {
         log.info("configure palettes");
 
-        HashMap palettes = new HashMap();
+        HashMap<Integer, PaletteManager> palettes = new HashMap();
 
         Node node = Config.getNodeXPath(config, PALETTES_PATH);
 
@@ -171,17 +173,33 @@
             NodeList pals = Config.getNodeSetXPath(PALETTE_ITEMS);
             for (int i = 0, N = pals == null ? 0 : pals.getLength(); i < N; ++i) {
                 Element pal = (Element)pals.item(i);
-                String name        = pal.getAttribute("name");
-                String description = pal.getAttribute("description");
-                String filename    = pal.getAttribute("file");
+                String name         = pal.getAttribute("name");
+                String description  = pal.getAttribute("description");
+                String filename     = pal.getAttribute("file");
+                String parameterIds = pal.getAttribute("parameter-ids");
 
-                if (name == null || name.length() == 0) {
+                if (name == null || (name = name.trim()).length() == 0) {
                     log.error("Palette has no 'name' attribute.");
                 }
-                else if (filename == null || filename.length() == 0) {
-                    log.error("Palette has no 'file' attribute.");
+                else if (filename == null
+                || (filename = filename.trim()).length() == 0) {
+                    log.error("Palette '" + name + "' has no 'file' attribute.");
+                }
+                else if (parameterIds == null 
+                || (parameterIds = parameterIds.trim()).length() == 0) {
+                    log.error("no parameter ids given for '" + name + "'");
                 }
                 else {
+                    ArrayList<Integer> ids = new ArrayList<Integer>();
+                    for (String idString: parameterIds.split("[\t ,]+")) {
+                        try {
+                            ids.add(Integer.valueOf(idString));
+                        }
+                        catch (NumberFormatException nfe) {
+                            log.error(
+                                "parameter id '" + idString + "' is integer");
+                        }
+                    }
                     filename = Config.replaceConfigDir(filename);
                     Document document = XMLUtils.parseDocument(
                         new File(filename));
@@ -190,11 +208,16 @@
                             filename + "'");
                     }
                     else {
-                        Palette p = new Palette(document, description);
-                        palettes.put(name, p);
+                        PaletteManager manager = new PaletteManager(
+                            name,
+                            description,
+                            new Palette(document));
+                        for (Integer id: ids) {
+                            palettes.put(id, manager);
+                        }
                     }
                 }
-            }
+            } // for all palettes
         }
 
         context.put(PALETTES, palettes);