avro-scala-macro-annotations | Compile-time tools for working with Avros in Scala | Computer Vision library

by julianpeeters Scala Version: Current License: Apache-2.0

X-Ray Key Features Code Snippets(3)Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | avro-scala-macro-annotations Summary

avro-scala-macro-annotations is a Scala library typically used in Artificial Intelligence, Computer Vision, OpenCV applications. avro-scala-macro-annotations has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Compile-time tools for working with Avros in Scala

Support

Quality

Security

License

Reuse

Support

avro-scala-macro-annotations has a low active ecosystem.

It has 57 star(s) with 16 fork(s). There are 8 watchers for this library.

It had no major release in the last 6 months.

There are 7 open issues and 25 have been closed. On average issues are closed in 66 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of avro-scala-macro-annotations is current.

Quality

avro-scala-macro-annotations has no bugs reported.

Security

avro-scala-macro-annotations has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

avro-scala-macro-annotations is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

avro-scala-macro-annotations releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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avro-scala-macro-annotations Key Features

No Key Features are available at this moment for avro-scala-macro-annotations.

avro-scala-macro-annotations Examples and Code Snippets

1) Avro-Type-Provider

Scala

Lines of Code : 17

License : Permissive (Apache-2.0)

Copy

        {"type":"record","name":"MyRecord","namespace":"tutorial","doc":"Auto-generated schema","fields":[{"name":"x","type":{"type":"record","name":"Rec","doc":"Auto-generated schema","fields":[{"name":"i","type":"int","doc":"Auto-Generated Field"}]

2) Avro-Record:

Scala

Lines of Code : 16

License : Permissive (Apache-2.0)

Copy

        package sample

        @AvroRecord
        case class A(var i: Int)

        @AvroRecord
        case class B(var a: Option[A] = None)

        {"type":"record","name":"B","namespace":"sample","doc":"Auto-generated schema","fields":[{"name":

Herein lie assorted macro annotations for working with Avro in Scala:

Scala

Lines of Code : 9

License : Permissive (Apache-2.0)

Copy

    libraryDependencies += "com.julianpeeters" % "avro-scala-macro-annotations_2.11" % "0.11.1"

    addCompilerPlugin("org.scalamacros" % "paradise" % "2.1.0" cross CrossVersion.full)

        package sample

        import com.julianpeeters.avro.an

Community Discussions

Trending Discussions on avro-scala-macro-annotations

How to ensure constant Avro schema generation and avoid the 'Too many schema objects created for x' exception?

QUESTION

How to ensure constant Avro schema generation and avoid the 'Too many schema objects created for x' exception?

Asked 2019-Jan-27 at 11:50

I am experiencing a reproducible error while producing Avro messages with reactive kafka and avro4s. Once the identityMapCapacity of the client (CachedSchemaRegistryClient) is reached, serialization fails with

...

ANSWER

Answered 2017-Nov-20 at 07:35

edit 2017.11.20

The issue in my case was that each instance of GenericRecord carrying my message has been serialized by a different instance of RecordFormat, containing a different instance of the Schema. The implicit resolution here generated a new instance each time.

def toAvro[A](a: A)(implicit recordFormat: RecordFormat[A]): GenericRecord = recordFormat.to(a)

The solution was to pin the RecordFormat instance to a val and reuse it explicitly. Many thanks to https://github.com/heliocentrist for explaining the details.

original response:

After waiting for a while (also no answer for the github issue) I had to implement my own SchemaRegistryClient. Over 90% is copied from the original CachedSchemaRegistryClient, just translated into scala. Using a scala mutable.Map fixed the memory leak. I have not performed any comprehensive tests, so use at your own risk.

Source https://stackoverflow.com/questions/45963959

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

Vulnerabilities

No vulnerabilities reported

Install avro-scala-macro-annotations

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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