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feat: add flagd provider implementation (#66)
* feat: add flagd provider implementation Signed-off-by: Todd Baert <[email protected]> * add test for reason handling Signed-off-by: Todd Baert <[email protected]> * Add more doc to readme Signed-off-by: Todd Baert <[email protected]> * Make protocol enum Signed-off-by: Todd Baert <[email protected]> * use provided scope for javasdk Signed-off-by: Todd Baert <[email protected]> * Extract defaults to vars Signed-off-by: Todd Baert <[email protected]> Signed-off-by: Todd Baert <[email protected]>
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‎.gitmodules‎

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[submodule "providers/flagd/schemas"]
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path = providers/flagd/schemas
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url = https://github.com/open-feature/schemas.git

‎README.md‎

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This repo uses _Release Please_ to release packages. Release Please sets up a running PR that tracks all changes for the library components, and maintains the versions according to [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/), generated when [PRs are merged](https://github.com/amannn/action-semantic-pull-request). When Release Please's running PR is merged, any changed artifacts are published.
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## Developing
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### Requirements
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Though we target Java 8, Java 18 is recommended for the tooling, plugins, etc. Maven 3.8+ is recommended.
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### Testing
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Run `mvn verify` to test, generate javadoc, and check style. If this passes locally, the CI will generally pass.
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### Adding a module
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1. Create a [standard directory structure](https://maven.apache.org/guides/introduction/introduction-to-the-standard-directory-layout.html) in the appropriate folder (`hooks/`, `providers/`).
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1. Create a new `pom.xml` in the root of your new module. It must inherit from the parent POM, which implements the javadoc, testing, publishing, and other boilerplate. Be sure to add `<!--x-release-please-version -->` on the line specifying the module version, so our release tooling can update it (see sample pom below).
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1. Add the new package to `release-please-config.json`.
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1. Add the new module to the <modules>...</modules> section in the parent `pom.xml`.
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Sample pom.xml:
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```xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>dev.openfeature.contrib</groupId>
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<artifactId>java-sdk-contrib</artifactId>
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<version>0.0.0</version>
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<relativePath>../../pom.xml</relativePath>
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</parent>
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<groupId>dev.openfeature.contrib.${providers | hooks | etc}</groupId>
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<artifactId>module</artifactId>
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<version>0.0.1</version> <!--x-release-please-version -->
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<name>module</name>
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<description>Your module description</description>
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<url>https://openfeature.dev</url>
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<developers>
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<developer>
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<id>Your GitHub ID</id>
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<name>Your Name</name>
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<organization>OpenFeature</organization>
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<url>https://openfeature.dev/</url>
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</developer>
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</developers>
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<dependencies>
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<!-- dependencies your module needs (in addition to those inherited from parent) -->
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</dependencies>
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<build>
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<plugins>
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<!-- plugins your module needs (in addition to those inherited from parent) -->
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</plugins>
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</build>
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</project>
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```
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### VS Code config
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To use vscode, install the standard [Java language support extension by Red Hat](https://marketplace.visualstudio.com/items?itemName=redhat.java).
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The following vscode settings are recommended (create a workspace settings file at .vscode/settings.json):
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```json
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{
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"java.configuration.updateBuildConfiguration": "interactive",
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"java.autobuild.enabled": false,
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"java.checkstyle.configuration": "${workspaceFolder}/checkstyle.xml",
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"java.checkstyle.version": "10.3.2",
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"java.format.settings.url": "${workspaceFolder}/eclipse-java-google-style.xml",
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"java.format.enabled": false
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}
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```
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## License
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Apache 2.0 - See [LICENSE](./LICENSE) for more information.

‎checkstyle-suppressions.xml‎

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<?xml version="1.0"?>
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<!DOCTYPE suppressions PUBLIC "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN" "https://checkstyle.org/dtds/suppressions_1_2.dtd">
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<suppressions>
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<!-- don't check style of generated sources (GRPC bindings) -->
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<suppress files="[\\/]generated-sources[\\/]" checks="[a-zA-Z0-9]*" />
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</suppressions>

‎checkstyle.xml‎

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‎hooks/open-telemetry/src/main/java/dev/openfeature/contrib/hooks/otel/OpenTelemetryHook.java‎

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/**
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* A test method...
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*
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* @return {boolean}
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*/
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public static boolean test() {

‎pom.xml‎

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<dependencies>
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<dependency>
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<!-- provided -->
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<groupId>dev.openfeature</groupId>
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<artifactId>javasdk</artifactId>
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<version>0.0.3</version>
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<!-- 0.1.0 or greater -->
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<version>[0.1,)</version>
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<!-- use the version provided at runtime -->
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>1.18.24</version>
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<scope>provided</scope>
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</dependency>
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<!-- end provided -->
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<!-- test -->
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<dependency>
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<groupId>org.mockito</groupId>
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<version>1.8.1</version>
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<scope>test</scope>
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</dependency>
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<!-- end test -->
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</dependencies>
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<build>
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<dependency>
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<groupId>com.puppycrawl.tools</groupId>
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<artifactId>checkstyle</artifactId>
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<version>8.31</version>
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<version>10.3.2</version>
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</dependency>
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</dependencies>
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<executions>
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<execution>
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<id>validate</id>
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<phase>validate</phase>
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<phase>verify</phase>
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<goals>
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<goal>check</goal>
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</goals>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-pmd-plugin</artifactId>
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<version>3.13.0</version>
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<configuration>
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<excludeRoots>${basedir}/target/generated-sources/</excludeRoots>
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</configuration>
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<executions>
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<execution>
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<id>run-pmd</id>
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<version>3.4.0</version>
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<configuration>
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<failOnWarnings>true</failOnWarnings>
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<excludePackageNames>dev.openfeature.flagd.grpc</excludePackageNames>
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</configuration>
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<executions>
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<execution>

‎providers/flagd/pom.xml‎

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<dependencies>
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<!-- we inherent dev.openfeature.javasdk and the test dependencies from the parent pom -->
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-netty-shaded</artifactId>
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<version>1.48.1</version>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-protobuf</artifactId>
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<version>1.48.1</version>
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</dependency>
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<dependency>
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<groupId>io.grpc</groupId>
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<artifactId>grpc-stub</artifactId>
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<version>1.48.1</version>
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</dependency>
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<dependency>
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<!-- necessary for Java 9+ -->
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<groupId>org.apache.tomcat</groupId>
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<artifactId>annotations-api</artifactId>
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<version>6.0.53</version>
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<scope>provided</scope>
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</dependency>
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</dependencies>
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<build>
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<!-- required for protobuf generation -->
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<extensions>
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<extension>
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<groupId>kr.motd.maven</groupId>
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<artifactId>os-maven-plugin</artifactId>
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<version>1.6.2</version>
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</extension>
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</extensions>
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<plugins>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>3.1.0</version>
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<executions>
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<execution>
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<id>update-schemas-submodule</id>
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<phase>validate</phase>
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<goals>
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<goal>exec</goal>
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</goals>
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<configuration>
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<!-- run: git submodule update \-\-init \-\-recursive -->
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<executable>git</executable>
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<arguments>
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<argument>submodule</argument>
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<argument>update</argument>
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<argument>--init</argument>
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<argument>--recursive</argument>
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</arguments>
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</configuration>
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</execution>
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<execution>
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<id>copy-protobuf-definition</id>
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<phase>validate</phase>
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<goals>
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<goal>exec</goal>
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</goals>
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<configuration>
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<!-- run: cp schemas/protobuf/schema/v1/schema.proto src/main/proto/ -->
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<executable>cp</executable>
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<arguments>
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<argument>schemas/protobuf/schema/v1/schema.proto</argument>
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<argument>src/main/proto/</argument>
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</arguments>
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</configuration>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.xolstice.maven.plugins</groupId>
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<artifactId>protobuf-maven-plugin</artifactId>
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<version>0.6.1</version>
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<configuration>
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<protocArtifact>com.google.protobuf:protoc:3.21.1:exe:${os.detected.classifier}</protocArtifact>
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<pluginId>grpc-java</pluginId>
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<pluginArtifact>io.grpc:protoc-gen-grpc-java:1.48.1:exe:${os.detected.classifier}</pluginArtifact>
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</configuration>
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<executions>
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<execution>
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<goals>
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<goal>compile</goal>
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<goal>compile-custom</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎providers/flagd/schemas‎

Submodule schemas added at 910fa33

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