CODEWITHSUNDEEP
javajettydropwizard
bh213
bh213

Reputation: 6529

Long request processing with DropWizard

I have a simple DropWizard service and I'd like a REST API to start a long running processing task - both CPU and I/O bound. REST call will not wait for task completion, notification will happen by polling/long polling/web socket.

For now, I'd prefer if I can do this in Dropwizard and keep everything in single deployable JAR. What are my options?

UPDATE: I am interested in what my options are regarding running long running tasks in Dropwizard, deployed as single jar without external dependencies. Just spawn a new thread? Assuming there are just few such requests it would probably work but there should be better options.

Upvotes: 5

Views: 5289

Answers (1)

Daniel Scott
Daniel Scott

Reputation: 7923

You probably want to use a managed resource:

https://dropwizard.io/en/stable/manual/core.html#managed-objects

to setup a thread pool. Then, your initial request could push a message onto a queue. Your thread pool can pull messages off the queue and process them asynchronously.

You could maybe provide an additional endpoint so that clients can obtain the current state of the asynchronous process.

Upvotes: 14

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