android - creating a infinitly running event based java program -


i new field , don't have clue whatsoever on how achieve following goal.

i taking example explain this. need java code calls rest api on event. event daily event hit api daily @ noon or whenever administrator registers new event. can write code code should run forever i.e. whenever there event should trigger api hence in understanding must put on server.

now here doubt how go doing this. have read make servlet , request , response object not , since web application hence running in tomcat container on web-server , stick whole code there. not know if right way tackling problem.

edit trying implement server calls google cloud messaging api hence has send push notification registered users , user details in mysql server. administrator of server has right register new event notification needs send suppose wants send 1 time notification happy new year registered user or wants send daily notification @ particular time morning. these events has registered , listened server , on occurance of event server has make jsonobject , call gcm service. , please guide me how deploy on server.

hope clear now

ps: sorry if question seems absurd bear novice , me learn.

although question programmers exchange architecture this:

you dig in java timers , schedule (daily) events call rest api.

for accepting , scheduling new events , deleting old events need interface administrator can use. can correctly said servlet form showing scheduled events , deleting of them or rest api endpoint (so admin should use wget hit it).

you can use database persist events if server restarts or use in memory array variable hold them if not.


Comments

Post a Comment

Popular posts from this blog

authentication - Mongodb revoke acccess to connect test database -

i have ec2 instance mongodb 3.2.0 installed. have user admin access. can connect user , perform operation remotely. 1 can connect database test remote if knows ip mongo 11.11.11.11. although not able make operations, want restrict access user credentials can connect server. first need create users , grant roles users, example: use admin db.createuser( { user: "myuseradmin", pwd: "abc123", roles: [ { role: "useradminanydatabase", db: "admin" } ] } ) then need start server --auth parameter mongod --auth more information here
Read more

r - Update two sets of radiobuttons reactively - shiny -

i have read ( how make choices in radiobuttons reactive in shiny? ) shows me how update radiobutton s in reactive way. however, when try , update 2 sets of buttons same data, 1 set renders. example: server: # create example data wafer <- rep(c(1:3), each=3) length <- c(1,1,2,1,1,1,3,5,1) width <- c(3,1,6,1,1,1,1,1,6) dd <- data.frame(wafer, length, width) shinyserver(function(input, output, session){ # create reactive dataframe store data values <- reactivevalues() values$df <- data.frame() # lengths , widths of wafer user input <- eventreactive(input$do, { subset(dd, wafer %in% input$wafer, select = length:width) }) # update reactive data frame lengths , widths have been selected user input observe({ if(!is.null(a())) { values$df <- rbind(isolate(values$df), a()) } }) output$wl <- renderdatatable({ a() }) # update radio buttons unique length , widths stored in values$df # ever "observe" put first in co...
Read more

ios - Realm over CoreData should I use NSFetchedResultController or a Dictionary? -

i'm working on app using core data , nsfetchedresultcontroller many reasons switch use realm. saw there "realm version" of nsfetchedresultcontroller on github wouldn't compatible current code using core data. the view controller displaying list of people same school, address book. list sublist of people studied in same city. so thinking make 1 unique request database retrieve list of people , filter locally list within 1 dictionary per school [string: anyobject] string section name within tableview , anyobject array of people. first solution, make nsfetchedresultcontroller each school predicate filtering location. delete actions etc.. handled delegates -> not compatible realm create dictionaries , update them each actions... -> works realm it's annoying code. any better solution? edit: i need clarify request: i'd write class inherit uitableviewcontroller. this class has list of people sorted in alphabetical order the tableview has ...
Read more