ARC-1699: Spicegen gRPC client binding

CODEOWNERS

@@ -0,0 +1 @@
+*       [email protected] [email protected] [email protected]

README.md

@@ -73,6 +73,10 @@ The generator work in multiple stages that could be re-used for other generators
 
 To make this easy to use, all the above is bundled in the [maven plugin](./generator-maven-plugin).
 
+## Useful Links
+
+- [SpiceDB API Docs](https://buf.build/authzed/api/docs/main/authzed.api.v1)
+
 ## Wishlist
 
 - type-safe IDs, needs additional metadata in the schema

api/src/main/java/com/oviva/spicegen/api/ObjectRef.java

@@ -1,13 +1,21 @@
 package com.oviva.spicegen.api;
 
-import com.oviva.spicegen.api.internal.SimpleObjectRef;
-
 public interface ObjectRef {
   String kind();
 
   String id();
 
   static ObjectRef of(String kind, String id) {
-    return SimpleObjectRef.of(kind, id);
+    return new ObjectRef() {
+      @Override
+      public String kind() {
+        return kind;
+      }
+
+      @Override
+      public String id() {
+        return id;
+      }
+    };
   }
 }

api/src/main/java/com/oviva/spicegen/api/PermissionService.java

@@ -0,0 +1,15 @@
+package com.oviva.spicegen.api;
+
+public interface PermissionService {
+
+  /**
+   * Updates relationships, optionally with preconditions. The returned consistencyToken should be
+   * stored alongside the created resource such that the authorization can be done at the given
+   * consistency. This vastly improves the performance and allows the system to function even when
+   * it is partitioned.
+   *
+   * @param updateRelationships the request
+   * @return the result, containing the consistencyToken
+   */
+  UpdateResult updateRelationships(UpdateRelationships updateRelationships);
+}

api/src/main/java/com/oviva/spicegen/api/UpdateResult.java

@@ -0,0 +1,5 @@
+package com.oviva.spicegen.api;
+
+public interface UpdateResult {
+  String consistencyToken();
+}

api/src/main/java/com/oviva/spicegen/api/exceptions/AuthenticationException.java

@@ -0,0 +1,11 @@
+package com.oviva.spicegen.api.exceptions;
+
+public class AuthenticationException extends ClientException {
+  public AuthenticationException(String message) {
+    super(message);
+  }
+
+  public AuthenticationException(String message, Throwable cause) {
+    super(message, cause);
+  }
+}

api/src/main/java/com/oviva/spicegen/api/exceptions/AuthorizationException.java

@@ -0,0 +1,11 @@
+package com.oviva.spicegen.api.exceptions;
+
+public class AuthorizationException extends ClientException {
+  public AuthorizationException(String message) {
+    super(message);
+  }
+
+  public AuthorizationException(String message, Throwable cause) {
+    super(message, cause);
+  }
+}

api/src/main/java/com/oviva/spicegen/api/exceptions/ClientException.java

@@ -0,0 +1,11 @@
+package com.oviva.spicegen.api.exceptions;
+
+public class ClientException extends RuntimeException {
+  public ClientException(String message) {
+    super(message);
+  }
+
+  public ClientException(String message, Throwable cause) {
+    super(message, cause);
+  }
+}

api/src/main/java/com/oviva/spicegen/api/exceptions/ConflictException.java

@@ -0,0 +1,11 @@
+package com.oviva.spicegen.api.exceptions;
+
+public class ConflictException extends ClientException {
+  public ConflictException(String message) {
+    super(message);
+  }
+
+  public ConflictException(String message, Throwable cause) {
+    super(message, cause);
+  }
+}

api/src/main/java/com/oviva/spicegen/api/exceptions/ValidationException.java

@@ -0,0 +1,11 @@
+package com.oviva.spicegen.api.exceptions;
+
+public class ValidationException extends ClientException {
+  public ValidationException(String message) {
+    super(message);
+  }
+
+  public ValidationException(String message, Throwable cause) {
+    super(message, cause);
+  }
+}

example/README.md

@@ -0,0 +1,69 @@
+# Spicegen Example
+
+## Code
+See [ExampleTest](./src/test/java/com/oviva/spicegen/example/ExampleTest.java).
+
+
+## Maven Setup
+Example [pom.xml](./pom.xml)
+```xml
+<project>
+
+    <!-- ... -->
+
+    <!--    see https://docs.github.com/de/packages/working-with-a-github-packages-registry/working-with-the-apache-maven-registr&lt;!&ndash;&ndash;&gt;y-->
+    <repositories>
+        <repository>
+            <id>spicegen</id>
+            <name>GitHub Oviva Spicegen</name>
+            <url>https://maven.pkg.github.com/oviva-ag/spicegen</url>
+        </repository>
+    </repositories>
+    <pluginRepositories>
+        <pluginRepository>
+            <id>spicegen</id>
+            <name>GitHub Oviva Spicegen Plugin</name>
+            <url>https://maven.pkg.github.com/oviva-ag/spicegen</url>
+        </pluginRepository>
+    </pluginRepositories>
+
+    <!-- ... -->
+
+    <dependencies>
+        <dependency>
+            <groupId>com.oviva.spicegen</groupId>
+            <artifactId>api</artifactId>
+            <version>...</version>
+        </dependency>
+        <dependency>
+            <groupId>com.oviva.spicegen</groupId>
+            <artifactId>spicedb-binding</artifactId>
+            <version>...</version>
+        </dependency>
+    </dependencies>
+
+    <!-- ... -->
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>com.oviva.spicegen</groupId>
+                <artifactId>spicegen-maven-plugin</artifactId>
+                <version>${project.version}</version>
+                <executions>
+                    <execution>
+                        <configuration>
+                            <schemaPath>${project.basedir}/src/test/resources/files.zed</schemaPath>
+                            <packageName>${project.groupId}.permissions</packageName>
+                            <outputDirectory>${project.basedir}/target/generated-sources/src/main/java</outputDirectory>
+                        </configuration>
+                        <goals>
+                            <goal>spicegen</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
+```

example/pom.xml

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<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 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>com.oviva.spicegen</groupId>
+        <artifactId>spicegen-parent</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <name>Permissions Generator Example</name>
+    <artifactId>example</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.oviva.spicegen</groupId>
+            <artifactId>api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.oviva.spicegen</groupId>
+            <artifactId>spicedb-binding</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-simple</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>testcontainers</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-enforcer-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>versions-maven-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-source-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <excludedGroups>integration</excludedGroups>
+                    <argLine>
+                        ${argLine}
+                    </argLine>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>integration-tests</id>
+                        <phase>integration-test</phase>
+                        <goals>
+                            <goal>test</goal>
+                        </goals>
+                        <configuration>
+                            <excludedGroups>!integration</excludedGroups>
+                            <groups>integration</groups>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>com.oviva.spicegen</groupId>
+                <artifactId>spicegen-maven-plugin</artifactId>
+                <version>${project.version}</version>
+                <executions>
+                    <execution>
+                        <configuration>
+                            <schemaPath>${project.basedir}/src/test/resources/files.zed</schemaPath>
+                            <packageName>${project.groupId}.permissions</packageName>
+                            <outputDirectory>${project.basedir}/target/generated-sources/src/main/java</outputDirectory>
+                        </configuration>
+                        <goals>
+                            <goal>spicegen</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
+