@GET
  @Path("{route_id}")
  @Produces(MediaType.APPLICATION_JSON)
  public String getPlace(@PathParam("route_id") String routeID) {
    JSONObject reply = new JSONObject();
    try {

      syncCache.setErrorHandler(ErrorHandlers.getConsistentLogAndContinue(Level.INFO));

      Entity result = (Entity) syncCache.get(routeID);
      if (result != null)
        return reply
            .append("status", "OK")
            .append("message", "Found in memcache.")
            .append("Route Object", result)
            .toString();

      return reply.append("status", "fail").append("message", "Not found in memcache.").toString();
    } catch (Exception e) {
      return new JSONObject()
          .append("status", "fail")
          .append("message", "Route object with ID " + routeID + " not found.")
          .toString();
    }
  }
 @PUT
 @Consumes(MediaType.APPLICATION_XML)
 public Response putTaskData(String value) {
   Response res = null;
   // add your code here
   // first check if the Entity exists in the datastore
   DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
   MemcacheService syncCache = MemcacheServiceFactory.getMemcacheService();
   syncCache.setErrorHandler(ErrorHandlers.getConsistentLogAndContinue(Level.INFO));
   Key entKey = KeyFactory.createKey("TaskData", keyname);
   Date date = new Date();
   try {
     // if it is, signal that we updated the entity
     Entity ts = datastore.get(entKey);
     ts.setProperty("value", value);
     ts.setProperty("date", date);
     datastore.put(ts);
     res = Response.noContent().build();
   } catch (EntityNotFoundException e) {
     // if it is not, create it and
     // signal that we created the entity in the datastore
     Entity taskdata = new Entity("TaskData", keyname);
     taskdata.setProperty("value", value);
     taskdata.setProperty("date", date);
     datastore.put(taskdata);
     res = Response.created(uriInfo.getAbsolutePath()).build();
   }
   TaskData td = new TaskData(keyname, value, date);
   syncCache.put(keyname, td);
   return res;
 }
  @POST
  @Consumes(MediaType.APPLICATION_JSON)
  @Produces(MediaType.APPLICATION_JSON)
  public String addRoute(Route route, @Context HttpServletResponse servletResponse)
      throws IOException {
    try {
      Entity routeEntity = new Entity("Route");
      routeEntity.setProperty("originPlaceID", route.getOrigin().getGooglePlaceId());
      routeEntity.setProperty("destinationPlaceID", route.getDestination().getGooglePlaceId());
      routeEntity.setProperty("duration", route.getDuration());
      routeEntity.setProperty("distance", route.getDistance());
      routeEntity.setProperty("origin", route.getOrigin().getAddress());
      routeEntity.setProperty("destination", route.getDestination().getAddress());

      Text mapJsonAsText = route.getMapJsonAsText();
      routeEntity.setProperty("routeJSON", mapJsonAsText);

      syncCache.setErrorHandler(ErrorHandlers.getConsistentLogAndContinue(Level.INFO));
      String cacheKey = "route-" + key.nextLong();
      syncCache.put(cacheKey, routeEntity);
      return new JSONObject().append("status", "OK").append("key", cacheKey).toString();
    } catch (Exception e) {
      return new JSONObject()
          .append("status", "fail")
          .append("message", "Could not cache object.")
          .toString();
    }
  }
 @DELETE
 @Path("{route_id}")
 @Produces(MediaType.APPLICATION_JSON)
 public String deletePlace(@PathParam("route_id") String routeID) {
   syncCache.setErrorHandler(ErrorHandlers.getConsistentLogAndContinue(Level.INFO));
   JSONObject reply = new JSONObject();
   try {
     syncCache.delete(routeID);
     return reply
         .append("status", "OK")
         .append("message", "successfully deleted route " + routeID + " from " + "memcache")
         .toString();
   } catch (Exception e) {
     return new JSONObject().append("status", "fail").append("message", e.getMessage()).toString();
   }
 }
  @DELETE
  public void deleteIt() {

    // delete an entity from the datastore
    // just print a message upon exception (don't throw)
    DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
    MemcacheService syncCache = MemcacheServiceFactory.getMemcacheService();
    if (syncCache.get(keyname) != null) {
      syncCache.delete(keyname);
    }
    Key entKey = KeyFactory.createKey("TaskData", keyname);
    try {
      Entity ent = datastore.get(entKey);
      datastore.delete(entKey);
      System.err.println("TaskData deleted in Datastore");
    } catch (EntityNotFoundException e) {
      System.err.println("TaskData not found in Datastore");
    }
  }
 // for the application
 @GET
 @Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
 public TaskData getTaskData() {
   // same code as above method
   DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
   MemcacheService syncCache = MemcacheServiceFactory.getMemcacheService();
   if (syncCache.get(keyname) != null) {
     TaskData ts = (TaskData) syncCache.get(keyname);
     return ts;
   }
   Key entKey = KeyFactory.createKey("TaskData", keyname);
   try {
     Entity ent = datastore.get(entKey);
     TaskData ts =
         new TaskData(keyname, (String) ent.getProperty("value"), (Date) ent.getProperty("date"));
     return ts;
   } catch (EntityNotFoundException e) {
     throw new RuntimeException("Get: TaskData with " + keyname + " not found");
   }
 }
 // for the browser
 @GET
 @Produces(MediaType.TEXT_XML)
 public TaskData getTaskDataHTML() {
   // add your code here (get Entity from datastore using this.keyname)
   // throw new RuntimeException("Get: TaskData with " + keyname +  " not found");
   // if not found
   DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
   MemcacheService syncCache = MemcacheServiceFactory.getMemcacheService();
   if (syncCache.get(keyname) != null) {
     TaskData ts = (TaskData) syncCache.get(keyname);
     return ts;
   }
   Key entKey = KeyFactory.createKey("TaskData", keyname);
   try {
     Entity ent = datastore.get(entKey);
     TaskData ts =
         new TaskData(keyname, (String) ent.getProperty("value"), (Date) ent.getProperty("date"));
     return ts;
   } catch (EntityNotFoundException e) {
     throw new RuntimeException("Get: TaskData with " + keyname + " not found");
   }
 }