akka-spring | Akka app that uses Spring DI

by huntc Scala Version: Current License: No License

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kandi X-RAY | akka-spring Summary

akka-spring is a Scala library typically used in Programming Style applications. akka-spring has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Prototyping of an Akka app that uses Spring DI along with JSR-299 and JSR-330.

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Security

License

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Support

akka-spring has a low active ecosystem.

It has 9 star(s) with 2 fork(s). There are no watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of akka-spring is current.

Quality

akka-spring has no bugs reported.

Security

akka-spring has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

akka-spring does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

akka-spring releases are not available. You will need to build from source code and install.

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akka-spring Key Features

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akka-spring Examples and Code Snippets

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Community Discussions

Trending Discussions on akka-spring

Running a CompletableFuture from an Actor

Send metadata along with Akka stream

QUESTION

Running a CompletableFuture from an Actor

Asked 2017-May-05 at 12:13

I'm playing around with reactive patterns in a Java (8) Spring Boot (1.5.2.RELEASE) application with Akka (2.5.1). It's coming along nicely but now I'm stuck trying to run a CompletableFuture from an actor. To simulate this I have created a very simple service that returns a CompletableFuture. However, when I then try to return the result to the calling controller I get errors about dead-letters and no response is returned.

The error I am getting is:

[INFO] [05/05/2017 13:12:25.650] [akka-spring-demo-akka.actor.default-dispatcher-5] [akka://akka-spring-demo/deadLetters] Message [java.lang.String] from Actor[akka://akka-spring-demo/user/$a#-1561144664] to Actor[akka://akka-spring-demo/deadLetters] was not delivered. [1] dead letters encountered. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'.

Here is my code. This is the controller calling the actor:

...

ANSWER

Answered 2017-May-05 at 12:13

The getSender method is only reliably returning the ref of the sender during the synchronous processing of the message.

In your first case, you have:

Source https://stackoverflow.com/questions/43804053

QUESTION

Send metadata along with Akka stream

Asked 2017-Feb-26 at 15:36

Here is my previous question: Send data from InputStream over Akka/Spring stream

I have managed to send compressed and encrypted file over Akka stream. Now, I am looking for way to transport metadata along with data, mainly filename and hash (checksum).

My current idea is to use Flow.prepend function and insert metadata before data this way:

filename, that can vary in size but always ends with null byte
fixed size hash (checksum)
data

Then, on receiving end I would have to use Flow.takeWhile twice - once to read filename and second time to read hash, and then just read data. It doesn't really look like elegant solution plus if in future I would like to add more metadata it will become even worse.

I have noticed method Flow.named, however documentation says just:

...

ANSWER

Answered 2017-Feb-25 at 22:22

I think prepending the metadata makes sense. A simple approach could be to prepend the metadata using the same framing you use to send the data.

The receiving end will need to know how many metadata blocks are there, and use this information to split it. See example below.

Source https://stackoverflow.com/questions/42460924

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install akka-spring

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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