This PR implements a Scala wrapper library for Kafka Streams. The library is implemented as a project under streams, namely `:streams:streams-scala`. The PR contains the following:
* the library implementation of the wrapper abstractions
* the test suite
* the changes in `build.gradle` to build the library jar
The library has been tested running the tests as follows:
```
$ ./gradlew -Dtest.single=StreamToTableJoinScalaIntegrationTestImplicitSerdes streams:streams-scala:test
$ ./gradlew -Dtest.single=StreamToTableJoinScalaIntegrationTestImplicitSerdesWithAvro streams:streams-scala:test
$ ./gradlew -Dtest.single=WordCountTest streams:streams-scala:test
```
Author: Debasish Ghosh <ghosh.debasish@gmail.com>
Author: Sean Glover <seglo@randonom.com>
Reviewers: Bill Bejeck <bill@confluent.io>, Matthias J. Sax <matthias@confluent.io>, Ismael Juma <ismael@juma.me.uk>, John Roesler <john@confluent.io>, Damian Guy <damian@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
Closes#4756 from debasishg/scala-streams
This pull request targets https://issues.apache.org/jira/browse/KAFKA-6386
The minor fix to deprecate usage of `StreamsConfig` in favor of `java.util.Properties`.
I created separate public constructors using `Properties` in order to replace the old ones,
and prioritize new functions in the `KafkaStreams.java` file.
Since this is my first time doing open source contribution, I'm very happy to get
any comment or pointer to be more professional and get better next time, thank you Guozhang guozhangwang and Liquan Ishiihara!
testing strategy: existing unit test should be suffice to cover this change.
Author: cs427fa16staff <bchen11@outlook.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Guozhang Wang <guozhang@confluent.io>, Bill Bejeck <bill@confluent.io>
Closes#4354 from abbccdda/starter
github comments
Reworded the SASL Authentication sequence to update it to >= 1.0.0
Co-authored-by: Edoardo Comar <ecomar@uk.ibm.com>, Mickael Maison <mickael.maison@gmail.com>
Reviewers: Rajini Sivaram <rajinisivaram@googlemail.com>
Reviewers: John Roesler <john@confluent.io>, Bill Bejeck <bill@confluent.io>, Guozhang Wang <guozhang@confluent.io>, Damian Guy <damian@confluent.io>, Matthias J. Sax <matthias@confluent.io>
In dsi-api.html, when reading from Kafka to a KTable, the doc says "In the case of a KStream.." where `Kstream` here is not correct. They should be `KTable`.
Reviewers: Guozhang Wang <wangguoz@gmail.com>
This patch fixes a bug in the validation of the inter-broker protocol and the message format version. We should allow the configured message format api version to be greater than the inter-broker protocol api version as long as the actual message format versions are equal. For example, if the message format version is set to 1.0, it is fine for the inter-broker protocol version to be 0.11.0 because they both use message format v2.
I have added a unit test which checks compatibility for all combinations of the message format version and the inter-broker protocol version.
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#4583 from hachikuji/KAFKA-6328-REOPENED
Add docs for the ReplicationBytesInPerSec and ReplicationBytesOutPerSec metrics. These metrics were introduced in KIP-153 (KAFKA-5194) but the docs were not updated.
Built site-docs, and viewed them in a web browser to confirm.
Reviewers: Mickael Maison <mickael.maison@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Enable deep-iteration option when print-data-log is enabled in DumpLogSegments. Otherwise data is not printed.
Reviewers: Jason Gustafson <jason@confluent.io>, Ismael Juma <ismael@juma.me.uk>
Adds web page docs for KIP-247
Author: Matthias J. Sax <matthias@confluent.io>
Reviewers: Guozhang Wang <guozhang@confluent.io>, Bill Bejeck <bill@confluent.io>, Joel Hamill <joel@confluent.io>, Damian Guy <damian@confluent.io>
Author: Matthias J. Sax <matthias@confluent.io>
Reviewers: Bill Bejeck <bill@confluent.io>, Joel Hamill <joel@confluent.io>, Guozhang Wang <guozhang@confluent.io>
Updates KStream JavaDoc and web page documentations using new State Store API
Author: Yu Liu <yu.liu003@gmail.com>
Reviewers: Guozhang Wang <guozhang@confluent.io>, Matthias J. Sax <matthias@confluent.io>
**[KIP-145](https://cwiki.apache.org/confluence/display/KAFKA/KIP-145+-+Expose+Record+Headers+in+Kafka+Connect) has been accepted, and this PR implements KIP-145 except without the SMTs.**
Changed the Connect API and runtime to support message headers as described in [KIP-145](https://cwiki.apache.org/confluence/display/KAFKA/KIP-145+-+Expose+Record+Headers+in+Kafka+Connect).
The new `Header` interface defines an immutable representation of a Kafka header (key-value pair) with support for the Connect value types and schemas. This interface provides methods for easily converting between many of the built-in primitive, structured, and logical data types.
The new `Headers` interface defines an ordered collection of headers and is used to track all headers associated with a `ConnectRecord` (and thus `SourceRecord` and `SinkRecord`). This does allow multiple headers with the same key. The `Headers` contains methods for adding, removing, finding, and modifying headers. Convenience methods allow connectors and transforms to easily use and modify the headers for a record.
A new `HeaderConverter` interface is also defined to enable the Connect runtime framework to be able to serialize and deserialize headers between the in-memory representation and Kafka’s byte[] representation. A new `SimpleHeaderConverter` implementation has been added, and this serializes to strings and deserializes by inferring the schemas (`Struct` header values are serialized without the schemas, so they can only be deserialized as `Map` instances without a schema.) The `StringConverter`, `JsonConverter`, and `ByteArrayConverter` have all been extended to also be `HeaderConverter` implementations. Each connector can be configured with a different header converter, although by default the `SimpleHeaderConverter` is used to serialize header values as strings without schemas.
Unit and integration tests are added for `ConnectHeader` and `ConnectHeaders`, the two implementation classes for headers. Additional test methods are added for the methods added to the `Converter` implementations. Finally, the `ConnectRecord` object is already used heavily, so only limited tests need to be added while quite a few of the existing tests already cover the changes.
Author: Randall Hauch <rhauch@gmail.com>
Reviewers: Arjun Satish <arjun@confluent.io>, Ted Yu <yuzhihong@gmail.com>, Magesh Nandakumar <magesh.n.kumar@gmail.com>, Konstantine Karantasis <konstantine@confluent.io>, Ewen Cheslack-Postava <ewen@confluent.io>
Closes#4319 from rhauch/kafka-5142-b
This PR implements the JIRA issue [KAFKA-4029: SSL support for Connect REST API](https://issues.apache.org/jira/browse/KAFKA-4029) / [KIP-208](https://cwiki.apache.org/confluence/display/KAFKA/KIP-208%3A+Add+SSL+support+to+Kafka+Connect+REST+interface).
Summary of the main changes:
- Jetty `HttpClient` is used as HTTP client instead of the one shipped with Java. That allows to keep the SSL configuration for Server and Client be in single place (both use the Jetty `SslContextFactory`). It also has much richer configuration than the JDK client (it is easier to configure things such as supported cipher suites etc.).
- The `RestServer` class has been broker into 3 parts. `RestServer` contains the server it self. `RestClient` contains the HTTP client used for forwarding requests etc. and `SSLUtils` contain some helper classes for configuring SSL. One of the reasons for this was Findbugs complaining about the class complexity.
- A new method `valuesWithPrefixAllOrNothing` has been added to `AbstractConfig` to make it easier to handle the situation that we want to use either only the prefixed SSL options or only the non-prefixed. But not mixed them.
Author: Jakub Scholz <www@scholzj.com>
Reviewers: Ewen Cheslack-Postava <ewen@confluent.io>
Closes#4429 from scholzj/kip-208
* KAFKA-3625: Add public test utils for Kafka Streams
- add new artifact test-utils
- add TopologyTestDriver
- add MockTime, TestRecord, add TestRecordFactory
Reviewers: Guozhang Wang <wangguoz@gmail.com>, Damian Guy <damian.guy@gmail.com>, Bill Bejeck <bill@confluent.io>
With KIP-175 there are a number of consumer group command options that can be used to describe a consumer group.
This PR updates the documentation on consumer group command to mention those options.
manjuapu
John Roesler
Debasish Ghosh
taekyung
Andras Beni
Mickael Maison
ro7m
Allen Wang
Matthias J. Sax
Viktor Somogyi
Boyang Chen
huxi
Guozhang Wang
Chia-Ping Tsai
Ewen Cheslack-Postava
Jason Gustafson
wushujames
Rajini Sivaram
Joel Hamill
Daniel Wojda
Manikumar Reddy
Yu
Vahid Hashemian
Randall Hauch
Jakub Scholz
Yu-Jhe