Scala 2.12 has better support for newer Java versions and includes additional
compiler warnings that are helpful during development. In addition, Scala 2.11
hasn't been supported by the Scala community for a long time, the soon to be
released Spark 2.4.0 will finally support Scala 2.12 (this was the main reason
preventing many from upgrading to Scala 2.12) and Scala 2.13 is at the RC stage.
It's time to start recommending the Scala 2.12 build as we prepare support for
Scala 2.13 and start thinking about removing support for Scala 2.11.
In the meantime, Jenkins will continue to build all supported Scala versions (including
Scala 2.11) so the PR and trunk jobs will fail if people accidentally use methods
introduced in Scala 2.12.
Reviewers: Ewen Cheslack-Postava <me@ewencp.org>
1. Update the Streams hello world examples with the new API.
2. Update the version references in various places.
3. Update version templates to 1.1.x.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>, Damian Guy <damian.guy@gmail.com>, Derrick Or <derrickor@gmail.com>
Closes#4169 from guozhangwang/KMINOR-streams-docs
0. Minor fixes on the existing examples to merge all on a single input topic; also do not use `common.utils.Exit` as it is for internal usage only.
1. Add the archetype project for the quickstart. Steps to try it out:
a. `mvn install` on the quickstart directory.
b. `mvn archetype:generate \
-DarchetypeGroupId=org.apache.kafka \
-DarchetypeArtifactId=streams-quickstart-java \
-DarchetypeVersion=1.0.0-SNAPSHOT \
-DgroupId=streams-quickstart \
-DartifactId=streams-quickstart \
-Dversion=0.1 \
-Dpackage=StreamsQuickstart \
-DinteractiveMode=false` at any directory to create the project.
c. build the streams jar with version `1.0.0-SNAPSHOT` to local maven repository with `./gradlew installAll`; `cd streams-quickstart; mvn clean package`
d. create the input / output topics, start the console producer and consumer.
e. start the program: `mvn exec:java -Dexec.mainClass=StreamsQuickstart.Pipe/LineSplit/WordCount`.
f. type data on console producer and observe data on console consumer.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Damian Guy <damian.guy@gmail.com>, Bill Bejeck <bbejeck@gmail.com>, Ewen Cheslack-Postava <me@ewencp.org>, Eno Thereska <eno.thereska@gmail.com>
Closes#3630 from guozhangwang/KMinor-streams-quickstart-tutorial
1. Make the WordCountDemo application to not stop automatically but via "ctrl-C".
2. Update the quickstart html file to let users type input messages one-by-one, and observe added output in an interactive manner.
3. Some minor fixes on the parent documentation page pointing to streams sub-pages, added a new recommended Scala version number.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Michael G. Noll <michael@confluent.io>, Damian Guy <damian.guy@gmail.com>
Closes#3515 from guozhangwang/KMinor-interactive-quickstart
Also fix quickstart.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Damian Guy <damian.guy@gmail.com>
Closes#3501 from ijuma/introduce-full-version-variable-in-docs
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Apurva Mehta <apurva@confluent.io>, Matthias J. Sax <matthias@confluent.io>, Jason Gustafson <jason@confluent.io>
Closes#3345 from guozhangwang/KMinor-streams-eos-docs
1. Added an architecture section.
2. Added a configuration / execution sub-section to developer guide.
Minor tweaks and a bunch of missing fixes from `kafka-site` repo.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Derrick Or <derrickor@gmail.com>, Ewen Cheslack-Postava <ewen@confluent.io>
Closes#2488 from guozhangwang/KMinor-streams-docs-second-pass
- Seperate Streams documentation out to a standalone page.
- Setup templates to use handlebars.js
- Create template variables to swap in frequently updated values like version number from a single file templateData.js
Author: Derrick Or <derrickor@gmail.com>
Reviewers: Guozhang Wang <wangguoz@gmail.com>
Closes#2245 from derrickdoo/docTemplates
Ismael Juma
Guozhang Wang
Rajini Sivaram
Damian Guy
Derrick Or