--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backend/src/main/java/org/dive4elements/river/importer/ImportCrossSection.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,120 @@
+package org.dive4elements.river.importer;
+
+import org.dive4elements.river.model.River;
+import org.dive4elements.river.model.CrossSection;
+import org.dive4elements.river.model.TimeInterval;
+
+import org.hibernate.Session;
+import org.hibernate.Query;
+
+import java.util.List;
+
+import org.apache.log4j.Logger;
+
+/** CrossSection to be imported, holds list of ImportCrossSectionLines. */
+public class ImportCrossSection
+{
+    private static Logger log = Logger.getLogger(ImportRiver.class);
+
+    protected ImportRiver                  river;
+    protected String                       description;
+    protected ImportTimeInterval           timeInterval;
+    protected List<ImportCrossSectionLine> lines;
+
+    protected CrossSection peer;
+
+    public ImportCrossSection() {
+    }
+
+    public ImportCrossSection(
+        ImportRiver                  river,
+        String                       description,
+        ImportTimeInterval           timeInterval,
+        List<ImportCrossSectionLine> lines
+    ) {
+        this.river        = river;
+        this.description  = description;
+        this.timeInterval = timeInterval;
+        this.lines        = lines;
+        wireWithLines();
+    }
+
+    public void wireWithLines() {
+        for (ImportCrossSectionLine line: lines) {
+            line.setCrossSection(this);
+        }
+    }
+
+    public ImportRiver getRiver() {
+        return river;
+    }
+
+    public void setRiver(ImportRiver river) {
+        this.river = river;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public ImportTimeInterval getTimeInterval() {
+        return timeInterval;
+    }
+
+    public void setTimeInterval(ImportTimeInterval timeInterval) {
+        this.timeInterval = timeInterval;
+    }
+
+    public void storeDependencies() {
+
+        log.info("store cross section '" + description + "'");
+
+        getPeer();
+
+        int i = 1, N = lines.size();
+
+        for (ImportCrossSectionLine line: lines) {
+            line.storeDependencies();
+            log.info("  stored " + i + " lines. remaining: " + (N-i));
+            ++i;
+        }
+    }
+
+    public CrossSection getPeer() {
+
+        if (peer == null) {
+            River r = river.getPeer();
+            TimeInterval t = timeInterval != null
+                ? timeInterval.getPeer()
+                : null;
+
+            Session session =
+                ImporterSession.getInstance().getDatabaseSession();
+
+            Query query = session.createQuery(
+                "from CrossSection where " +
+                "river=:r and "            +
+                "timeInterval=:t and "     +
+                "description=:d");
+
+            query.setParameter("r", r);
+            query.setParameter("t", t);
+            query.setParameter("d", description);
+
+            List<CrossSection> crossSections = query.list();
+            if (crossSections.isEmpty()) {
+                peer = new CrossSection(r, t, description);
+                session.save(peer);
+            }
+            else {
+                peer = crossSections.get(0);
+            }
+        }
+        return peer;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :