Added Event overview page. issue 5

Former-commit-id: 6ee75491189dc68b53b928436ef5d06a81b81568

src/se/hal/page/EventOverviewHttpPage.java

@@ -0,0 +1,85 @@
+package se.hal.page;
+
+import se.hal.ControllerManager;
+import se.hal.HalContext;
+import se.hal.intf.HalEventData;
+import se.hal.intf.HalHttpPage;
+import se.hal.struct.Event;
+import se.hal.struct.User;
+import zutil.db.DBConnection;
+import zutil.db.SQLResultHandler;
+import zutil.io.file.FileUtil;
+import zutil.parser.Templator;
+import zutil.ui.Configurator;
+import zutil.ui.Configurator.ConfigurationParam;
+
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class EventOverviewHttpPage extends HalHttpPage {
+    private static final String OVERVIEW_TEMPLATE = "web-resource/event_overview.tmpl";
+    private static final String DETAIL_TEMPLATE = "web-resource/event_detail.tmpl";
+
+
+    public EventOverviewHttpPage(){
+        super("Overview", "event_overview");
+        super.getRootNav().getSubNav("events").addSubNav(super.getNav());
+    }
+
+    @Override
+    public Templator httpRespond(
+            Map<String, Object> session,
+            Map<String, String> cookie,
+            Map<String, String> request)
+            throws Exception{
+
+        DBConnection db = HalContext.getDB();
+
+        // Save new input
+        if(request.containsKey("id")){
+            int id = Integer.parseInt(request.get("id"));
+            Event event = Event.getEvent(db, id);
+
+            // get history data
+            PreparedStatement stmt = db.getPreparedStatement("SELECT * FROM event_data_raw WHERE event_id == ?");
+            stmt.setLong(1, event.getId());
+            List<HistoryData> history = DBConnection.exec(stmt, new HistoryDataListSqlResult());
+
+            Templator tmpl = new Templator(FileUtil.find(DETAIL_TEMPLATE));
+            tmpl.set("event", event);
+            tmpl.set("history", history);
+            return tmpl;
+        }
+        else {
+            Templator tmpl = new Templator(FileUtil.find(OVERVIEW_TEMPLATE));
+            tmpl.set("events", Event.getLocalEvents(db));
+            return tmpl;
+        }
+    }
+
+
+
+    protected static class HistoryData{
+        public long timestamp;
+        public double data;
+    }
+
+    protected class HistoryDataListSqlResult implements SQLResultHandler<List<HistoryData>> {
+        @Override
+        public List<HistoryData> handleQueryResult(Statement stmt, ResultSet result) throws SQLException {
+            ArrayList<HistoryData> list = new ArrayList<HistoryData>();
+            while(result.next()){
+                HistoryData data = new HistoryData();
+                data.timestamp = result.getLong("timestamp");
+                data.data = result.getLong("data");
+                list.add(data);
+            }
+            return list;
+        }
+    }
+}