We want to schedule text SMS message from our Java application.
We have checked the documentation on scheduling the RingCentral API which we haven't found any.
Does RingCentral has any feature of sending messages in schedule?
RingCentral by itself doesn't have any feature of scheduling it's API.
Since as you are using Java as a programming language, you can use Java scheduler to scheduler the API trigger at a particular interval of time.
Java schedular ref here.
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Looking for some help on an application design. I am using spring framework and hosting application in AWS.
I am working on an enterprise Java Web application that is suppose to handle events when their trigger time is reached. For example, consumers can set an event to begin on 12/20/22 at 07:35 AM, and system is suppose to send a notification when that time is reached.
I can store these events in a database along with their trigger time and setup a Spring scheduler (#Scheduler) to run every minute and process events whose trigger time is reached. My only concern with this approach is, there could be hundreds/thousands of event to trigger at any minute, and it cannot be processed within one minute.
Is there any alternate way to design this? I don't know if Spring offers a feature where I could create these Event, and Frameworks trigger these events when trigger time is reached. In that way, I can stay away from managing Scheduling and Triggering part.
I am using AWS to host this applications, so another option I'm thinking towards is creating an AWS lambda for every such Event, and let AWS manage the triggering part. In that way, I can stay away from managing the triggers.
Let me know your views? Or If you came across similar problems and how you resolved that?
You can consider using spring-cloud-dataflow to manage this as tasks and streams.
You create a custom batch application that will use #Scheduled to check the your database when events are dure and then send events to a stream. You can use Spring Integration APIs to interact with RabbitMQ or Kafka topics.
The event should contain enough information needed to process the event.
You then have a stream application that produces the content and send via email or pass it on to a separate stream app that sends the email.
https://dataflow.spring.io/docs/stream-developer-guides/programming-models/
The flow will look something like:
:mail_events | message-processor | message-sender
You will configure property for mail_events to match the topic created and configured for you mail-event-batch application.
You can use Spring Cloud Data Flow to manage the mail-event-batch application as well.
You can scale each application https://dataflow.spring.io/docs/recipes/scaling/
I want to Send Push Notification using Spring Boot for Calendar on the particular time.
The person will get alert/notification for Task at particular Time based on Calendar alert they have set.
Can you please me tell me what will be required? Kafka, Firebase FCM, WebSocket or any other alternative - which may be more effective?
You Can Explore Cron Job or Scheduler to perform this job you must have value at backend for specific alarms , further more you can use java runnable Interface to create threads.
I have a service with only one method inside. I would like to schedule this method to run everyday at 01:00am. Can I do this using only IBM Integration Bus?
You can use a TimeoutNotification Node in IBM Integration Bus.
Yes , you should be able to do it quite eazily using timer nodes available in IIB. The timeout control and timeout notification nodes permit you to schedule reccuring events or time based events. The link is slightly old , but gives a really good idea of going about this.
I need to achieve the following : -
Sending emails to around 6000 users around 30 times in a year. Sometimes sending emails at specific time of day else at midnight.
I need to provide retry functionality in my application, so if by some reason my application failed to send email to some of the user it should retry to send 3 times (till 3 days) before finally marking it as failure.
i need to send emails using predefined templates but having dynamic data in it.
My application tech stack - java, spring boot 1.4, oracle database, CA autosys job scheduler, activiti bpm (not using Activiti as of now but can use it if it is the best solution)
My current solution :-
Use autosys scheduler to define these jobs.
calling my Rest exposed services (spring + java + oracle tech stack), that perform all the application logic and them Apache commons email to send the email using my smtp server.
My question - What is the recommended way to send email in this case? As i have to maintain various tables to achieve retry functionality. should i use activiti instead of autosys scheduler? Or spring framework itself for this email scheduling?
I don't see any business processes to be managed in your problem. as far as no business people are involved in any task (such as filling a form, make a decision based on input provided), you should avoid activiti. Activiti is a BPM engine, there is no use of it unless you are managing a process. for schedulers you should definitely go ahead with the spring framework. Do let me know if i've missed any point.
I am looking for best solution to create a java web application to generate reports in excel/PDf format. some thing similar to Google Adwords, where user can create schedule reports and download it when the report is generated at a later time.
I am thinking to develop and java application where User logs, selects a pre defined report and provides the input parameters (like report date etc), This request will be queued up or saved as Quarts Job(prefer persistent Queue). A Job will be monitoring the queue/job and execute the job, generate the report(output excel /pdf) and stored in disk.
When the user refresh the screen or logs back at a later time, the report should be available for down load.
Using Spring batch and Quartz scheduler can I do this ? I also expecting like Spring admin , where I can see number of request in Queue(jobs queued up), and stop the queue processing etc.
You would use spring-batch if you wanted to process all report requests at the same time, perhaps at night when your servers are not otherwise occupied processing real-time user requests (or even during the day during slow periods).
You would use a quartz job if you wanted to check for new jobs every few seconds/minutes/hours/etc, and process one/many of them at that specified time interval.
So, quartz is a scheduler and batch is a process. You could use quartz to schedule batch jobs to run at specific times. They aren't competing technologies, they are complimentary.
About your question:
Given that you talk about queues and their persistence however it sounds a lot like your problem would fit into a simple jms model. You would need some messaging software. If you want to make it easy on yourself I'd recommend using spring-jms as a wrapper around the basic Java EE JMS api -- the spring wrappers are simply simpler than basic jms. For a messaging service I'd look at RabbitMQ, because again it's pretty simple.
With the jms architecture you'd post user requests to the queue, which you'd configured to be persistent. You'd have a custom listener on the queue, passing requests to a report generator whenever it runs. You can assign one or more threads to the listener, meaning that you should find it easy to tune the performance of the report generator.
There is a pretty useful DZone article about using rabbitmq via spring-integration (a set of prebuilt pattern implementations that help with connecting things to each other).