As-a-service, consume topic definitions and act accordingly

.dockerignore

@@ -0,0 +1,10 @@
+.idea
+target/
+node_modules/
+/bin/
+/build/
+.classpath
+.gradle
+.project
+.settings
+.git

.editorconfig

@@ -0,0 +1,7 @@
+root = true
+
+[*]
+charset = utf-8
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 2

.gitignore

@@ -1,3 +1,9 @@
 .idea
 target/
 node_modules/
+/bin/
+/build/
+.classpath
+.gradle
+.project
+.settings

Dockerfile

@@ -0,0 +1,39 @@
+FROM solsson/kafka-jre@sha256:06dabfc8cacd0687c8f52c52afd650444fb6d4a8e0b85f68557e6e7a5c71667c \
+  as build
+
+ENV GRADLE_VERSION=4.3.1
+
+RUN set -ex; \
+  export DEBIAN_FRONTEND=noninteractive; \
+  runDeps='curl'; \
+  buildDeps='ca-certificates unzip'; \
+  apt-get update && apt-get install -y $runDeps $buildDeps --no-install-recommends; \
+  \
+  cd /opt; \
+  curl -SLs -o gradle-$GRADLE_VERSION-bin.zip https://services.gradle.org/distributions/gradle-$GRADLE_VERSION-bin.zip; \
+  unzip gradle-$GRADLE_VERSION-bin.zip; \
+  rm gradle-$GRADLE_VERSION-bin.zip; \
+  ln -s /opt/gradle-$GRADLE_VERSION/bin/gradle /usr/local/bin/gradle; \
+  gradle -v
+
+WORKDIR /opt/src/kafka-topic-client
+COPY build.gradle ./
+
+RUN set -ex; \
+  mkdir -p src/main/java; \
+  echo "public class Dummy {}" > src/main/java/Dummy.java; \
+  gradle build; \
+  rm src/main/java/Dummy.java
+
+COPY . .
+
+RUN set -ex; \
+  gradle build
+
+FROM solsson/kafka-jre@sha256:06dabfc8cacd0687c8f52c52afd650444fb6d4a8e0b85f68557e6e7a5c71667c
+
+COPY --from=build /opt/src/kafka-topic-client/build/libs /usr/share/java/kafka-topic-client
+
+ENTRYPOINT [ "java", \
+  "-cp", "/usr/share/java/kafka-topic-client/*:/etc/kafka-topic-client/*", \
+  "se.yolean.kafka.topic.client.cli.Client" ]

LICENSE.txt

@@ -0,0 +1,177 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
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+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+
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+
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+      editorial revisions, annotations, elaborations, or other modifications
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+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
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+
+      "Contribution" shall mean any work of authorship, including
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+      on behalf of whom a Contribution has been received by Licensor and
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+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
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+      (b) You must cause any modified files to carry prominent notices
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
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+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+      defend, and hold each Contributor harmless for any liability
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+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS

README.md

@@ -0,0 +1,7 @@
+
+
+## The `Topic` schema
+
+See `src/main/avro/Topic.avsc`.
+
+IDEs can get generated Java using `gradle build`.

build-contracts/docker-compose-create.yml

@@ -8,8 +8,10 @@ services:
       - zookeeper
   client:
     build: ../
+    image: localhost:5000/yolean/kafka-topic-client:$PUSH_TAG
     labels:
       com.yolean.build-contract: ""
+      com.yolean.build-target: ""
     links:
       - zookeeper
   test:

build.gradle

@@ -0,0 +1,80 @@
+
+repositories {
+  mavenCentral()
+  jcenter()
+  maven {
+    url "http://packages.confluent.io/maven/"
+  }
+}
+
+apply plugin: 'java'
+apply plugin: "idea"
+apply plugin: "eclipse"
+apply plugin: "maven"
+apply plugin: "jacoco"
+
+group 'se.yolean'
+
+sourceCompatibility = 1.8
+
+apply plugin: 'application'
+mainClassName = 'se.yolean.kafka.topic.client.cli.Client'
+
+configurations {
+  compile.exclude group: 'org.slf4j', module: 'slf4j-log4j12'
+  compile.exclude group: 'log4j', module: 'log4j'
+}
+
+dependencies {
+  compile group: 'javax.inject', name: 'javax.inject', version: '1'
+  compile group: 'com.google.inject', name: 'guice', version: '4.1.0'
+
+  compile group: 'org.apache.kafka', name: 'kafka-clients', version: '1.0.0'
+
+  compile group: 'org.apache.kafka', name: 'kafka_2.12', version: '1.0.0'
+  compile group: 'com.101tec', name: 'zkclient', version: '0.10'
+
+  compile group: 'io.confluent', name: 'kafka-schema-registry-client', version: '4.0.0'
+
+  compile group: 'com.nurkiewicz.asyncretry', name: 'asyncretry', version: '0.0.7'
+
+  runtime group: 'org.slf4j', name: 'slf4j-simple', version: '1.7.25'
+  runtime group: 'org.slf4j', name: 'log4j-over-slf4j', version: '1.7.25'
+  compile group: 'structlog4j', name: 'structlog4j-api', version: '1.0.0'
+  compile group: 'structlog4j', name: 'structlog4j-json', version: '1.0.0'
+
+  compile group: 'io.prometheus', name: 'simpleclient', version: '0.1.0'
+  compile group: 'io.prometheus', name: 'simpleclient_httpserver', version: '0.1.0'
+
+  testCompile group: 'junit', name: 'junit', version: '4.12'
+  testCompile group: 'org.mockito', name: 'mockito-core', version: '2.12.0'
+}
+
+task copyToLib(type: Copy) {
+	into "$buildDir/libs"
+	from configurations.runtime
+}
+
+build.dependsOn(copyToLib)
+
+// for .editorconfig support in Eclipse
+buildscript {
+  repositories {
+    jcenter()
+  }
+  dependencies {
+    classpath 'org.standardout:gradle-eclipseconfig:1.1.0'
+    classpath 'org.unbroken-dome.gradle-plugins:gradle-testsets-plugin:1.4.2'
+    classpath 'com.commercehub.gradle.plugin:gradle-avro-plugin:0.12.0'
+  }
+}
+apply plugin: 'org.standardout.eclipseconfig'
+
+apply plugin: 'org.unbroken-dome.test-sets'
+testSets {
+  itest
+}
+
+apply plugin: 'com.commercehub.gradle.plugin.avro'
+avro {
+}