--- a/flys-artifacts/ChangeLog	Mon Aug 22 15:25:48 2011 +0000
+++ b/flys-artifacts/ChangeLog	Mon Aug 22 16:05:40 2011 +0000
@@ -1,3 +1,12 @@
+2011-08-22  Sascha L. Teichmann <sascha.teichmann@intevation.de>
+
+	* src/main/java/de/intevation/flys/artifacts/FLYSArtifact.java:
+	  Added some code to filter outs/facets by an optional positive list.
+	  This is needed to only expose parts of the facets. This
+	  is needed for artifacts which are loaded into a collection.
+	  TODO: create the filter from the XML document passed at creation
+	  time.
+
 2011-08-22  Sascha L. Teichmann <sascha.teichmann@intevation.de>
 
 	* src/main/java/de/intevation/flys/artifacts/FLYSArtifact.java: Moved all

--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/FLYSArtifact.java	Mon Aug 22 15:25:48 2011 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/FLYSArtifact.java	Mon Aug 22 16:05:40 2011 +0000
@@ -98,6 +98,9 @@
     /** The list of facets supported by this artifact.*/
     protected Map<String, List<Facet>> facets;
 
+    /** out -&gt; facets */
+    protected Map<String, List<Facet>> filterFacets;
+
 
     /**
      * The default constructor that creates an empty FLYSArtifact.
@@ -528,6 +531,45 @@
         return getCurrentStateId() + hash;
     }
 
+    protected List<Output> filterOutputs(List<Output> outs) {
+
+        if (filterFacets == null || filterFacets.isEmpty()) {
+            return outs;
+        }
+
+        List<Output> filtered = new ArrayList<Output>();
+
+        for (Output out: outs) {
+
+            List<Facet> fFacets = filterFacets.get(out.getName());
+            if (fFacets != null) {
+
+                List<Facet> resultFacets = new ArrayList<Facet>();
+
+                for (Facet facet: out.getFacets()) {
+                    for (Facet fFacet: fFacets) {
+                        if (facet.getIndex() == fFacet.getIndex()
+                        &&  facet.getName().equals(fFacet.getName())) {
+                            resultFacets.add(facet);
+                            break;
+                        }
+                    }
+                }
+
+                if (!resultFacets.isEmpty()) {
+                    DefaultOutput nout = new DefaultOutput(
+                        out.getName(),
+                        out.getDescription(),
+                        out.getMimeType(),
+                        resultFacets);
+                    filtered.add(nout);
+                }
+            }
+        }
+
+        return filtered;
+    }
+
 
     public List<Output> getOutputs(Object context) {
         List<String> stateIds  = getPreviousStateIds();
@@ -544,7 +586,7 @@
 
         generated.addAll(getCurrentOutputs(context));
 
-        return generated;
+        return filterOutputs(generated);
     }