--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/org/dive4elements/river/artifacts/services/GaugeOverviewInfoService.java	Thu Apr 25 12:06:39 2013 +0200
@@ -0,0 +1,113 @@
+package org.dive4elements.river.artifacts.services;
+
+import java.math.BigDecimal;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+import org.dive4elements.artifacts.CallMeta;
+import org.dive4elements.artifacts.GlobalContext;
+
+import org.dive4elements.river.model.Gauge;
+import org.dive4elements.river.model.MinMaxWQ;
+import org.dive4elements.river.model.Range;
+
+
+/**
+ * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
+ */
+public class GaugeOverviewInfoService extends RiverInfoService {
+
+    private static final Logger logger = Logger.getLogger(
+            GaugeOverviewInfoService.class);
+
+    @Override
+    public Document doProcess(
+        Document      data,
+        GlobalContext globalContext,
+        CallMeta      callMeta
+    ) {
+        Document result = super.doProcess(data, globalContext, callMeta);
+
+        logger.debug("GaugeOverviewInfoService.process");
+
+        Element egs = ec.create("gauges");
+
+        List<Gauge> gauges = river.getGauges();
+
+        if (logger.isDebugEnabled()) {
+            logger.debug("Loaded gauges: " + gauges);
+        }
+
+        for (Gauge gauge: river.getGauges()) {
+            Element eg = ec.create("gauge");
+
+            String name = gauge.getName();
+            if (name != null) {
+                ec.addAttr(eg, "name", gauge.getName(), true);
+            }
+
+            String aeo = getStringValue(gauge.getAeo());
+            if (aeo != null) {
+                ec.addAttr(eg, "aeo", aeo, true);
+            }
+
+            String datum = getStringValue(gauge.getDatum());
+            if (datum != null) {
+                ec.addAttr(eg, "datum", datum, true);
+            }
+
+            Range range = gauge.getRange();
+            if (range != null) {
+                BigDecimal a = range.getA();
+                if (a != null) {
+                    double min = a.doubleValue();
+                    ec.addAttr(eg, "start", Double.toString(min), true);
+                }
+
+                BigDecimal b = range.getB();
+                if (b != null) {
+                    double max = range.getB().doubleValue();
+                    ec.addAttr(eg, "end", Double.toString(max), true);
+                }
+            }
+            MinMaxWQ minmaxwq = gauge.fetchMaxMinWQ();
+            String minw = getStringValue(minmaxwq.getMinW());
+            String maxw = getStringValue(minmaxwq.getMaxW());
+            String minq = getStringValue(minmaxwq.getMinQ());
+            String maxq = getStringValue(minmaxwq.getMaxQ());
+
+            if (minw != null) {
+                ec.addAttr(eg, "minw", minw, true);
+            }
+            if (maxw != null) {
+                ec.addAttr(eg, "maxw", maxw, true);
+            }
+            if (minq != null) {
+                ec.addAttr(eg, "minq", minq, true);
+            }
+            if (maxq != null) {
+                ec.addAttr(eg, "maxq", maxq, true);
+            }
+
+            String station = getStringValue(gauge.getStation());
+            if (station != null) {
+                ec.addAttr(eg, "station", station, true);
+            }
+
+            Long official = gauge.getOfficialNumber();
+            if (official != null) {
+                ec.addAttr(eg, "official", official.toString(), true);
+            }
+
+            egs.appendChild(eg);
+        }
+
+        riverele.appendChild(egs);
+
+        return result;
+    }
+}