Issue #2063: Improve performance of grid blanking in iscMosaic by only retrieving history data, not entire grid slices.

Change-Id: Icd25e7e54a391ca19445be866e411b35aed54b16

Former-commit-id: 5e53c3f0bd [formerly 51b317ac52] [formerly 9acf385f21] [formerly bad6a1fa40 [formerly 9acf385f21 [formerly 5570ee749c5797f8f2c9ab3f6f8392d2c5680d32]]]
Former-commit-id: bad6a1fa40
Former-commit-id: 71dde9577d001c57231eb1ddf6cca6a71e302a55 [formerly 070365714a]
Former-commit-id: 5fe4739fc4

edexOsgi/com.raytheon.edex.plugin.gfe/src/com/raytheon/edex/plugin/gfe/smartinit/IFPWE.java

@@ -26,6 +26,7 @@ import java.util.Collections;
 import java.util.Date;
 import java.util.LinkedHashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.Map.Entry;
 import java.util.TimeZone;
 
@@ -81,6 +82,7 @@ import com.raytheon.uf.common.time.TimeRange;
  * Apr 23, 2013  #1941      dgilling    Implement put(), add methods to build
  *                                      Scalar/VectorGridSlices, refactor
  *                                      Discrete/WeatherGridSlices builders.
+ * Jun 05, 2013  #2063      dgilling    Port history() from A1.
  * 
  * </pre>
  * 
@@ -308,6 +310,39 @@ public class IFPWE {
         }
     }
 
+    /**
+     * Returns the grid history for a specified time range.
+     * 
+     * @param tr
+     *            The time for which the history is being requested.
+     * @return The grid history entries for the specified time range in coded
+     *         string format.
+     */
+    public List<String> history(final TimeRange tr) {
+        ServerResponse<Map<TimeRange, List<GridDataHistory>>> sr = GridParmManager
+                .getGridHistory(parmId, Arrays.asList(tr));
+
+        if (!sr.isOkay()) {
+            statusHandler.error("Error retrieving grid history for parm ["
+                    + parmId + "] at time range " + tr + ": " + sr.message());
+            return Collections.emptyList();
+        }
+
+        Map<TimeRange, List<GridDataHistory>> payload = sr.getPayload();
+        if ((payload == null) || (payload.isEmpty())) {
+            statusHandler.error("No grid history returned for parm [" + parmId
+                    + "] at time range " + tr);
+            return Collections.emptyList();
+        }
+
+        List<GridDataHistory> hist = payload.get(tr);
+        List<String> retVal = new ArrayList<String>(hist.size());
+        for (GridDataHistory entry : hist) {
+            retVal.add(entry.getCodedString());
+        }
+        return retVal;
+    }
+
     private void setItem(TimeRange time, IGridSlice gridSlice,
             List<GridDataHistory> gdh) throws GfeException {
         GFERecord rec = new GFERecord(parmId, time);

edexOsgi/com.raytheon.edex.plugin.gfe/utility/edex_static/base/gfe/isc/iscMosaic.py

@@ -80,6 +80,8 @@ from com.raytheon.uf.edex.database.cluster import ClusterTask
 #    05/08/13        1988          dgilling       Fix history handling bug in
 #                                                 __getDbGrid().
 #    05/23/13        1759          dgilling       Remove unnecessary imports.
+#    06/05/13        2063          dgilling       Change __siteInDbGrid() to
+#                                                 call IFPWE.history() like A1.
 # 
 # 
 
@@ -1289,13 +1291,14 @@ class IscMosaic:
     def __siteInDbGrid(self, tr):
         if tr is None:
             return None
-        history = self.__dbwe.getItem(iscUtil.toJavaTimeRange(tr)).getHistory()
+        history = self.__dbwe.history(iscUtil.toJavaTimeRange(tr))
         
-        for i in range(0, len(history)):
-            index = string.find(history[i].getCodedString(), self.__siteID + "_GRID")
-            if index != -1:
-                return 1
-        return 0
+        itr = history.iterator()
+        while itr.hasNext():
+            h = str(itr.next())
+            if self.__siteID + "_GRID" in h:
+                return True
+        return False
     
     #---------------------------------------------------------------------
     # validateAdjustDiscreteKeys()