--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/FixingsKMChartService.java	Wed Apr 04 14:41:27 2012 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/services/FixingsKMChartService.java	Wed Apr 04 18:30:44 2012 +0000
@@ -1,14 +1,28 @@
 package de.intevation.flys.artifacts.services;
 
+import java.util.List;
+
 import de.intevation.artifactdatabase.DefaultService;
 
 import de.intevation.artifacts.CallMeta;
 import de.intevation.artifacts.GlobalContext;
 import de.intevation.artifacts.Service;
 
+import de.intevation.flys.artifacts.model.FixingsFilterBuilder;
+import de.intevation.flys.artifacts.model.FixingsOverview;
+import de.intevation.flys.artifacts.model.FixingsColumn;
+import de.intevation.flys.artifacts.model.FixingsColumnFactory;
+import de.intevation.flys.artifacts.model.FixingsOverviewFactory;
+
+import de.intevation.flys.artifacts.model.FixingsOverview.Fixing;
+
+import de.intevation.flys.backend.SessionHolder;
+
 import org.apache.log4j.Logger;
 
 import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
 
 public class FixingsKMChartService
 extends      DefaultService
@@ -16,28 +30,19 @@
     private static final Logger log =
         Logger.getLogger(FixingsKMChartService.class);
 
-    public static final byte [] DATA0 = {
+    public static final byte [] EMPTY = {
         (byte)0x89, (byte)0x50, (byte)0x4e, (byte)0x47, 
         (byte)0x0d, (byte)0x0a, (byte)0x1a, (byte)0x0a, 
         (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x0d, 
         (byte)0x49, (byte)0x48, (byte)0x44, (byte)0x52, 
-        (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x1d, 
-        (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x1d, 
-        (byte)0x04, (byte)0x03, (byte)0x00, (byte)0x00, 
-        (byte)0x00, (byte)0xa4, (byte)0xbd, (byte)0x7a, 
-        (byte)0x3c, (byte)0x00, (byte)0x00, (byte)0x00, 
+        (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01, 
+        (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x01, 
+        (byte)0x08, (byte)0x00, (byte)0x00, (byte)0x00, 
+        (byte)0x00, (byte)0x3a, (byte)0x7e, (byte)0x9b, 
+        (byte)0x55, (byte)0x00, (byte)0x00, (byte)0x00, 
         (byte)0x01, (byte)0x73, (byte)0x52, (byte)0x47, 
         (byte)0x42, (byte)0x00, (byte)0xae, (byte)0xce, 
         (byte)0x1c, (byte)0xe9, (byte)0x00, (byte)0x00, 
-        (byte)0x00, (byte)0x18, (byte)0x50, (byte)0x4c, 
-        (byte)0x54, (byte)0x45, (byte)0xff, (byte)0xff, 
-        (byte)0xff, (byte)0x08, (byte)0x08, (byte)0x08, 
-        (byte)0x29, (byte)0x29, (byte)0x29, (byte)0x52, 
-        (byte)0x52, (byte)0x52, (byte)0x8c, (byte)0x8c, 
-        (byte)0x8c, (byte)0xbd, (byte)0xbd, (byte)0xbd, 
-        (byte)0xe7, (byte)0xe7, (byte)0xe7, (byte)0x00, 
-        (byte)0x00, (byte)0x00, (byte)0xcf, (byte)0x3a, 
-        (byte)0xd7, (byte)0x12, (byte)0x00, (byte)0x00, 
         (byte)0x00, (byte)0x09, (byte)0x70, (byte)0x48, 
         (byte)0x59, (byte)0x73, (byte)0x00, (byte)0x00, 
         (byte)0x0b, (byte)0x13, (byte)0x00, (byte)0x00, 
@@ -45,26 +50,27 @@
         (byte)0x9a, (byte)0x9c, (byte)0x18, (byte)0x00, 
         (byte)0x00, (byte)0x00, (byte)0x07, (byte)0x74, 
         (byte)0x49, (byte)0x4d, (byte)0x45, (byte)0x07, 
-        (byte)0xdc, (byte)0x04, (byte)0x04, (byte)0x0a, 
-        (byte)0x32, (byte)0x0f, (byte)0xa3, (byte)0x92, 
-        (byte)0x8b, (byte)0x55, (byte)0x00, (byte)0x00, 
-        (byte)0x00, (byte)0x2b, (byte)0x49, (byte)0x44, 
-        (byte)0x41, (byte)0x54, (byte)0x18, (byte)0xd3, 
-        (byte)0x63, (byte)0x60, (byte)0x18, (byte)0x1a, 
-        (byte)0x20, (byte)0x0c, (byte)0x95, (byte)0x9b, 
-        (byte)0x5c, (byte)0x6e, (byte)0x80, (byte)0xc2, 
-        (byte)0x37, (byte)0x2f, (byte)0x2f, (byte)0x41, 
-        (byte)0xe1, (byte)0x8b, (byte)0x97, (byte)0x17, 
-        (byte)0xa3, (byte)0xf0, (byte)0xd5, (byte)0xd1, 
-        (byte)0xf8, (byte)0x81, (byte)0xe5, (byte)0x6a, 
-        (byte)0x28, (byte)0x7c, (byte)0x36, (byte)0x97, 
-        (byte)0x04, (byte)0x86, (byte)0x61, (byte)0x01, 
-        (byte)0x00, (byte)0xf0, (byte)0xaa, (byte)0x06, 
-        (byte)0x2d, (byte)0x16, (byte)0xcb, (byte)0xb9, 
-        (byte)0x3c, (byte)0x00, (byte)0x00, (byte)0x00, 
-        (byte)0x00, (byte)0x49, (byte)0x45, (byte)0x4e, 
-        (byte)0x44, (byte)0xae, (byte)0x42, (byte)0x60, 
-        (byte)0x82};
+        (byte)0xdc, (byte)0x04, (byte)0x04, (byte)0x10, 
+        (byte)0x30, (byte)0x15, (byte)0x7d, (byte)0x77, 
+        (byte)0x36, (byte)0x0b, (byte)0x00, (byte)0x00, 
+        (byte)0x00, (byte)0x08, (byte)0x74, (byte)0x45, 
+        (byte)0x58, (byte)0x74, (byte)0x43, (byte)0x6f, 
+        (byte)0x6d, (byte)0x6d, (byte)0x65, (byte)0x6e, 
+        (byte)0x74, (byte)0x00, (byte)0xf6, (byte)0xcc, 
+        (byte)0x96, (byte)0xbf, (byte)0x00, (byte)0x00, 
+        (byte)0x00, (byte)0x0a, (byte)0x49, (byte)0x44, 
+        (byte)0x41, (byte)0x54, (byte)0x08, (byte)0xd7, 
+        (byte)0x63, (byte)0xf8, (byte)0x0f, (byte)0x00, 
+        (byte)0x01, (byte)0x01, (byte)0x01, (byte)0x00, 
+        (byte)0x1b, (byte)0xb6, (byte)0xee, (byte)0x56, 
+        (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00, 
+        (byte)0x49, (byte)0x45, (byte)0x4e, (byte)0x44, 
+        (byte)0xae, (byte)0x42, (byte)0x60, (byte)0x82
+    };
+
+    private static final Output empty() {
+        return new Output(EMPTY, "image/png");
+    }
 
     @Override
     public Service.Output process(
@@ -73,7 +79,70 @@
         CallMeta      callMeta
     ) {
         log.debug("FixingsKMChartService.process");
-        return new Output(DATA0, "image/png");
+
+        SessionHolder.acquire();
+        try {
+            return doProcess(data, globalContext, callMeta);
+        }
+        finally {
+            SessionHolder.HOLDER.get().close();
+            SessionHolder.release();
+        }
+    }
+
+    protected Service.Output doProcess(
+        Document      data,
+        GlobalContext globalContext,
+        CallMeta      callMeta
+    ) {
+        NodeList rivers = data.getElementsByTagName("river");
+        NodeList kms    = data.getElementsByTagName("km");
+
+        if (rivers.getLength() == 0 || kms.getLength() == 0) {
+            log.warn("Missing river and/or km.");
+            return empty();
+        }
+
+        String river = ((Element)rivers.item(0)).getAttribute("name");
+        String kmS   = ((Element)kms   .item(0)).getAttribute("value");
+
+        if (river.length() == 0 || kmS.length() == 0) {
+            log.warn("River and/or km empty string.");
+            return empty();
+        }
+
+        double km;
+        try {
+            km = Double.parseDouble(kmS);
+        }
+        catch (NumberFormatException nfe) {
+            log.warn("Km '" + kmS + " is not a valid number.");
+            return empty();
+        }
+
+        FixingsOverview overview = FixingsOverviewFactory.getOverview(river);
+
+        if (overview == null) {
+            log.warn("No overview found for river '" + river + "'");
+            return empty();
+        }
+
+        FixingsFilterBuilder ffb = new FixingsFilterBuilder(data);
+
+        List<Fixing.Column> columns = overview.filter(
+            ffb.getRange(),
+            ffb.getFilter());
+
+        for (Fixing.Column column: columns) {
+            FixingsColumn columnData =
+                FixingsColumnFactory.INSTANCE.getColumnData(column);
+            if (columnData == null) {
+                continue;
+            }
+        }
+        // TODO: Implement chart generation!
+
+        return empty();
     }
 }
 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :