Java Code Examples for com.google.appengine.api.datastore.Text#getValue()

@Test
public void testTextType() {
    String propertyName = "textProp";
    List<Entity> elist = doQuery(kindName, propertyName, null, false);
    Text text = (Text) elist.get(0).getProperty(propertyName);
    Text sameDat = (Text) elist.get(0).getProperty(propertyName);
    Text diffDat = (Text) elist.get(1).getProperty(propertyName);
    assertTrue(text.equals(sameDat));
    assertFalse(text.equals(diffDat));
    String getText = text.getValue();
    assertTrue(getText.equals("english") || getText.equals("chinese")
        || getText.equals("japanese"));
    assertEquals(text.hashCode(), text.hashCode());
}
 

@Override
public String marshal(Text t) {
  return (t == null) ? null : t.getValue();
}
 

public static int buildIndex(String group) throws IOException{
    //Get all fences of group from DataStore.
    DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
    Key fenceKey = KeyFactory.createKey("Geofence", group);

    Query query = new Query("Fence", fenceKey).addSort("id", Query.SortDirection.DESCENDING);
    List<Entity> fencesFromStore = datastore.prepare(query).asList(FetchOptions.Builder.withDefaults());

    if (!fencesFromStore.isEmpty()) {
    	//Create STRTree-Index.
        STRtree index = new STRtree();
        //Loop through the fences from DataStore.
        for (Entity fenceFromStore : fencesFromStore) {
            long id = (long) fenceFromStore.getProperty("id");
            Gson gson = new Gson();
            Text vText = (Text) fenceFromStore.getProperty("vertices");
            String vString = vText.getValue();
            double[][] vertices = gson.fromJson(vString, double[][].class);

            //Store coordinates in an array.
            Coordinate[] coordinates = new Coordinate[vertices.length];
            int i = 0;
            for(double[] point : vertices){
                Coordinate coordinate = new Coordinate(point[0],point[1]);
                coordinates[i++] = coordinate;
            }
            //Create polygon from the coordinates.
            GeometryFactory fact = new GeometryFactory();
            LinearRing linear = new GeometryFactory().createLinearRing(coordinates);
            MyPolygon polygon = new MyPolygon(linear, null, fact, id);
            //Add polygon to index.
            index.insert(polygon.getEnvelopeInternal(), polygon);
        }
        //Build the index.
        index.build();
        //Write the index to Memcache.
        MemcacheService syncCache = MemcacheServiceFactory.getMemcacheService();
        //Last param is expiration date. Set to null to keep it in Memcache forever.
        syncCache.put(group, index, null); 
    }
    return fencesFromStore.size();
}
 

/**
 * Re-constitutes an instance of this class from a Data Store entity.
 *
 * @param entity
 */
public JobRecord(Entity entity) {
  super(entity);
  jobInstanceKey = (Key) entity.getProperty(JOB_INSTANCE_PROPERTY);
  finalizeBarrierKey = (Key) entity.getProperty(FINALIZE_BARRIER_PROPERTY);
  runBarrierKey = (Key) entity.getProperty(RUN_BARRIER_PROPERTY);
  outputSlotKey = (Key) entity.getProperty(OUTPUT_SLOT_PROPERTY);
  state = State.valueOf((String) entity.getProperty(STATE_PROPERTY));
  exceptionHandlingAncestorKey =
      (Key) entity.getProperty(EXCEPTION_HANDLING_ANCESTOR_KEY_PROPERTY);
  Object exceptionHandlerSpecifiedProperty =
      entity.getProperty(EXCEPTION_HANDLER_SPECIFIED_PROPERTY);
  if (null != exceptionHandlerSpecifiedProperty) {
    exceptionHandlerSpecified = (Boolean) exceptionHandlerSpecifiedProperty;
  }
  exceptionHandlerJobKey = (Key) entity.getProperty(EXCEPTION_HANDLER_JOB_KEY_PROPERTY);
  Text exceptionHandlerGraphGuidText =
      (Text) entity.getProperty(EXCEPTION_HANDLER_JOB_GRAPH_GUID_PROPERTY);
  if (null != exceptionHandlerGraphGuidText) {
    exceptionHandlerJobGraphGuid = exceptionHandlerGraphGuidText.getValue();
  }
  Object callExceptionHandlerProperty = entity.getProperty(CALL_EXCEPTION_HANDLER_PROPERTY);
  if (null != callExceptionHandlerProperty) {
    callExceptionHandler = (Boolean) callExceptionHandlerProperty;
  }
  Object ignoreExceptionProperty = entity.getProperty(IGNORE_EXCEPTION_PROPERTY);
  if (null != ignoreExceptionProperty) {
    ignoreException = (Boolean) ignoreExceptionProperty;
  }
  Text childGraphGuidText = (Text) entity.getProperty(CHILD_GRAPH_GUID_PROPERTY);
  if (null != childGraphGuidText) {
    childGraphGuid = childGraphGuidText.getValue();
  }
  exceptionKey = (Key) entity.getProperty(EXCEPTION_KEY_PROPERTY);
  startTime = (Date) entity.getProperty(START_TIME_PROPERTY);
  endTime = (Date) entity.getProperty(END_TIME_PROPERTY);
  childKeys = (List<Key>) entity.getProperty(CHILD_KEYS_PROPERTY);
  if (null == childKeys) {
    childKeys = new LinkedList<>();
  }
  attemptNumber = (Long) entity.getProperty(ATTEMPT_NUM_PROPERTY);
  maxAttempts = (Long) entity.getProperty(MAX_ATTEMPTS_PROPERTY);
  backoffSeconds = (Long) entity.getProperty(BACKOFF_SECONDS_PROPERTY);
  backoffFactor = (Long) entity.getProperty(BACKOFF_FACTOR_PROPERTY);
  queueSettings.setOnBackend((String) entity.getProperty(ON_BACKEND_PROPERTY));
  queueSettings.setOnModule((String) entity.getProperty(ON_MODULE_PROPERTY));
  queueSettings.setModuleVersion((String) entity.getProperty(MODULE_VERSION_PROPERTY));
  queueSettings.setOnQueue((String) entity.getProperty(ON_QUEUE_PROPERTY));
  statusConsoleUrl = (String) entity.getProperty(STATUS_CONSOLE_URL);
  rootJobDisplayName = (String) entity.getProperty(ROOT_JOB_DISPLAY_NAME);
}
 

/**
 * Determine if an input text is null or empty.
 *
 * @param text Input text that might contain null, empty text or non-empty text
 * @return True if the input text is null or empty; false, the otherwise
 */
public static boolean isNullOrEmpty(Text text) {
  return (text == null || text.getValue() == null || text.getValue().isEmpty());
}
 

/**
 * Determine if an input text is null or empty.
 *
 * @param text Input text that might contain null, empty text or non-empty text
 * @return True if the input text is null or empty; false, the otherwise
 */
public static boolean isNullOrEmpty(Text text) {
  return (text == null || text.getValue() == null || text.getValue().isEmpty());
}