--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/org/dive4elements/river/exports/ATExporter.java	Thu Apr 25 12:06:39 2013 +0200
@@ -0,0 +1,145 @@
+package org.dive4elements.river.exports;
+
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.IOException;
+
+import org.w3c.dom.Document;
+
+import org.apache.log4j.Logger;
+
+import org.dive4elements.artifacts.Artifact;
+import org.dive4elements.artifacts.CallContext;
+
+import org.dive4elements.artifactdatabase.state.ArtifactAndFacet;
+import org.dive4elements.artifactdatabase.state.Settings;
+
+import org.dive4elements.river.artifacts.FLYSArtifact;
+
+import org.dive4elements.river.artifacts.model.WQ;
+import org.dive4elements.river.collections.FLYSArtifactCollection;
+
+import org.dive4elements.river.model.Gauge;
+import org.dive4elements.river.model.River;
+import org.dive4elements.river.model.TimeInterval;
+import org.dive4elements.river.utils.FLYSUtils;
+import org.dive4elements.river.artifacts.access.RangeAccess;
+
+public class ATExporter
+implements   OutGenerator
+{
+    private static Logger logger = Logger.getLogger(ATExporter.class);
+
+    public static final String DEFAULT_ENCODING = "UTF-8";
+
+    protected WQ           data;
+    protected CallContext  context;
+    protected OutputStream out;
+    protected FLYSArtifact master;
+
+    protected FLYSArtifactCollection collection;
+
+
+    public ATExporter() {
+    }
+
+    @Override
+    public void init(Document request, OutputStream out, CallContext context) {
+        this.context = context;
+        this.out     = out;
+    }
+
+
+    @Override
+    public void setMasterArtifact(Artifact master) {
+        this.master = (FLYSArtifact) master;
+    }
+
+    @Override
+    public void setCollection(FLYSArtifactCollection collection) {
+        this.collection = collection;
+    }
+
+    @Override
+    public void doOut(
+        ArtifactAndFacet artifactf,
+        Document attr,
+        boolean  visible
+    ) {
+        data = (WQ)artifactf.getData(context);
+    }
+
+    @Override
+    public void generate() throws IOException {
+
+        if (data == null) {
+            logger.debug("no W/Q data");
+            return;
+        }
+
+        ATWriter at;
+        try {
+            at = new ATWriter(data);
+        }
+        catch (IllegalArgumentException iae) {
+            logger.error("creating ATWriter failed", iae);
+            throw new IOException(iae);
+        }
+
+        River river = FLYSUtils.getRiver(master);
+        RangeAccess rangeAccess = new RangeAccess(master, context);
+        double[] kms = rangeAccess.getLocations();
+
+        Gauge gauge = river.determineGaugeByPosition(kms[0]);
+        if (Math.abs(kms[0] - gauge.getStation().doubleValue()) < 1e-4) {
+            // at gauge.
+            TimeInterval interval =
+                gauge.fetchMasterDischargeTable().getTimeInterval();
+            at.write(
+                new OutputStreamWriter(out, DEFAULT_ENCODING),
+                context.getMeta(),
+                river.getName(),
+                kms[0],
+                gauge.getName(),
+                gauge.getDatum(),
+                interval.getStartTime(),
+                100d);
+        }
+        else {
+            // at km
+            at.write(
+                new OutputStreamWriter(out),
+                context.getMeta(),
+                river.getName(),
+                kms[0],
+                null,
+                null,
+                null,
+                0d);
+        }
+
+    }
+
+
+    /**
+     * Returns an instance of <i>EmptySettings</i> currently!
+     *
+     * @return an instance of <i>EmptySettings</i>.
+     */
+    @Override
+    public Settings getSettings() {
+        return new EmptySettings();
+    }
+
+
+    /**
+     * This method is not implemented!
+     *
+     * @param settings A settings object.
+     */
+    @Override
+    public void setSettings(Settings settings) {
+        // do nothing here
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :