[data-plane]: Bump cloudevents.sdk.version from 2.0.0-milestone3 to 2.0.0-milestone4 in /data-plane

[dependabot]

Bumps cloudevents.sdk.version from 2.0.0-milestone3 to 2.0.0-milestone4.
Updates cloudevents-http-vertx from 2.0.0-milestone3 to 2.0.0-milestone4

Updates cloudevents-kafka from 2.0.0-milestone3 to 2.0.0-milestone4

Release notes

Sourced from cloudevents-kafka's releases.

2.0.0 Milestone 4

On the behalf of the CloudEvents community, I'm pleased to announce that we're releasing a new 2.0.0 milestone.

In this release we dealt with the outstanding issue of representing the CloudEvent data field. After a lot of discussions and proposals, we reached an agreement on this interface:

public interface CloudEventData {
    byte[] toBytes();
}

And now CloudEvent#getData() returns CloudEventData. This additional indirection doesn't change the assumptions of the original interface, but allows extensibility and optimizations, without reimplementing/wrapping the CloudEvent interface. We also implemented, in the jackson module, an optimization to read/write CloudEvent with json values in it and we provide a new interface, when deserializing events, to map the CloudEventData to any custom implementation.

You can check out all the changes here: https://github.com/cloudevents/sdk-java/milestone/4?closed=1

To start using it, look at the documentation on the official website: https://cloudevents.github.io/sdk-java/

What's next

If you want to contribute, feel free to pick any good first issue here: https://github.com/cloudevents/sdk-java/labels/good%20first%20issue

If you want to join the discussions about new features and how to improve the existing ones, feel free to look on issues and pr with discussion label: https://github.com/cloudevents/sdk-java/labels/discussion

As all milestones, this is a preview of the library for the community, nothing is written on the stone, so please give us feedback in order to improve this project!

Happy hacking!

Commits

• f52356e Bump to 2.0.0-milestone4 (#254)
• de2052c CloudEventDataMapper (#252)
• 5e747e7 Introduce JsonCloudEventData (#251)
• f9e31ef Introduce CloudEventData (#250)
• a09b03b Serialize time to RFC3339 compliant string (#249)
• f219b69 Release process docs (#248)
• 3cea024 Bump to 2.0.0-SNAPSHOT (#247)
• See full diff in compare view

Updates cloudevents-json-jackson from 2.0.0-milestone3 to 2.0.0-milestone4

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[codecov-io]

Codecov Report

Merging #2 (81a888f) into master (1ae683e) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master       #2   +/-   ##
=========================================
  Coverage     76.27%   76.27%           
  Complexity      189      189           
=========================================
  Files            51       51           
  Lines          1564     1564           
  Branches         53       53           
=========================================
  Hits           1193     1193           
  Misses          291      291           
  Partials         80       80           

Flag	Coverage Δ	Complexity Δ
java-unittests	75.43% <ø> (ø)	0.00 <ø> (ø)
unittests	76.27% <ø> (ø)	0.00 <ø> (ø)

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