@Override
public void process(ReadOnlyResourceTableManager processor) {
ArrayList<Resource> result = new ArrayList<Resource>();
// TODO At the moment this algorithm ignores pending resources nor does it handle floating
// events.
if (CacheManager.DEBUG) Log.println(Constants.LOGD, TAG, "Process Called...");
AcalDateRange range = window.getRequestedWindow();
if (window.getRequestedWindow() == null) {
if (CacheManager.DEBUG)
Log.println(Constants.LOGD, TAG, "Resource request cancelled - cache window already full");
super.postResponse(new RREventsInRangeResponse<ArrayList<Resource>>(result));
this.setProcessed();
return;
}
// step 1 --> convert window range to long UTC start
long start = range.start.getMillis();
long end = range.end.getMillis();
String whereClause =
"("
+ ResourceTableManager.EFFECTIVE_TYPE
+ "='"
+ VComponent.VEVENT
+ "' OR "
+ ResourceTableManager.EFFECTIVE_TYPE
+ "='"
+ VComponent.VTODO
+ "' )"
+ " AND ("
+ ResourceTableManager.LATEST_END
+ " IS NULL OR "
+ ResourceTableManager.LATEST_END
+ " >= "
+ start
+ " )"
+ " AND ("
+ ResourceTableManager.EARLIEST_START
+ " IS NULL OR "
+ ResourceTableManager.EARLIEST_START
+ " <= "
+ end
+ " )";
if (CacheManager.DEBUG)
Log.println(Constants.LOGD, TAG, "Getting Resource rows where:\n" + whereClause);
// step 2 query db for resources in range
ArrayList<ContentValues> rValues = processor.query(null, whereClause, null, null);
// also need pendings
ArrayList<ContentValues> pValues = processor.getPendingResources();
HashMap<Long, ContentValues> pendingMap = new HashMap<Long, ContentValues>();
if (!pValues.isEmpty()) {
// we need to remove from rValues, any values that have a corresponding entry in pValues
for (ContentValues cv : pValues) {
pendingMap.put(cv.getAsLong(ResourceTableManager.PEND_RESOURCE_ID), cv);
}
Iterator<ContentValues> it = rValues.iterator();
while (it.hasNext()) {
ContentValues rValue = it.next();
long rid = rValue.getAsLong(ResourceTableManager.RESOURCE_ID);
if (pendingMap.containsKey(rid)) {
ContentValues pValue = pendingMap.get(rid);
it.remove();
String data = pValue.getAsString(ResourceTableManager.NEW_DATA);
if (data == null || data.equals("")) pendingMap.remove(rid);
}
}
}
// Merge the lists
if (CacheManager.DEBUG)
Log.println(
Constants.LOGD,
TAG,
rValues.size()
+ " Resource Rows retreived. and "
+ pValues.size()
+ " pending values. Converting into Resource Objects");
for (Entry<Long, ContentValues> ent : pendingMap.entrySet()) {
Resource r = Resource.fromContentValues(ent.getValue());
r.setPending(true);
result.add(r);
}
for (ContentValues cv : rValues) result.add(Resource.fromContentValues(cv));
if (CacheManager.DEBUG)
Log.println(
Constants.LOGD, TAG, "Conversion complete. Populating VCalendars and appending events.");
// post response
super.postResponse(new RREventsInRangeResponse<ArrayList<Resource>>(result));
this.setProcessed();
}
