chore!: refactor split the transports into different packages

README.md

@@ -42,14 +42,27 @@ The A2A Java SDK provides a [reference A2A server implementation](reference-impl
 
 [Server Integrations](#server-integrations) contains a list of community contributed integrations of the server with various runtimes. You might be able to use one of these for your target runtime, or you can use them as inspiration to create your own.
 
-To use the reference implementation add the following dependency to your project:
+To use the reference implementation with the JSONRPC protocol add the following dependency to your project:
 
 > *⚠️ The `io.github.a2asdk` `groupId` below is temporary and will likely change for future releases.*
 
 ```xml
 <dependency>
     <groupId>io.github.a2asdk</groupId>
-    <artifactId>a2a-java-reference-server</artifactId>
+    <artifactId>a2a-java-sdk-reference-jsonrpc</artifactId>
+    <!-- Use a released version from https://github.com/a2aproject/a2a-java/releases --> 
+    <version>${io.a2a.sdk.version}</version>
+</dependency>
+```
+
+To use the reference implementation with the gRPC protocol add the following dependency to your project:
+
+> *⚠️ The `io.github.a2asdk` `groupId` below is temporary and will likely change for future releases.*
+
+```xml
+<dependency>
+    <groupId>io.github.a2asdk</groupId>
+    <artifactId>a2a-java-sdk-reference-grpc</artifactId>
     <!-- Use a released version from https://github.com/a2aproject/a2a-java/releases --> 
     <version>${io.a2a.sdk.version}</version>
 </dependency>

client/pom.xml

@@ -24,12 +24,12 @@
         </dependency>
         <dependency>
             <groupId>${project.groupId}</groupId>
-            <artifactId>a2a-java-sdk-grpc</artifactId>
+            <artifactId>a2a-java-sdk-spec</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
             <groupId>${project.groupId}</groupId>
-            <artifactId>a2a-java-sdk-spec</artifactId>
+            <artifactId>a2a-java-sdk-spec-grpc</artifactId>
             <version>${project.version}</version>
         </dependency>
 

examples/helloworld/pom.xml

@@ -33,7 +33,7 @@
             </dependency>
             <dependency>
                 <groupId>io.github.a2asdk</groupId>
-                <artifactId>a2a-java-reference-server</artifactId>
+                <artifactId>a2a-java-sdk-reference-jsonrpc</artifactId>
                 <version>${project.version}</version>
             </dependency>
         </dependencies>

examples/helloworld/server/pom.xml

@@ -18,7 +18,7 @@
     <dependencies>
         <dependency>
             <groupId>io.github.a2asdk</groupId>
-            <artifactId>a2a-java-reference-server</artifactId>
+            <artifactId>a2a-java-sdk-reference-jsonrpc</artifactId>
         </dependency>
         <dependency>
             <groupId>io.quarkus</groupId>

pom.xml

@@ -276,16 +276,19 @@
     </build>
 
     <modules>
-        <module>sdk-server-common</module>
+        <module>client</module>
         <module>common</module>
-        <module>grpc</module>
+        <module>examples/helloworld</module>
+        <module>reference/common</module>
+        <module>reference/grpc</module>
+        <module>reference/jsonrpc</module>
+        <module>server-common</module>
         <module>spec</module>
-        <module>client</module>
-        <module>reference-grpc</module>
-        <module>reference-impl</module>
+        <module>spec-grpc</module>
         <module>tck</module>
-        <module>examples/helloworld</module>
         <module>tests/server-common</module>
+        <module>transport/jsonrpc</module>
+        <module>transport/grpc</module>
     </modules>
 
     <profiles>

reference-impl/pom.xml → reference/common/pom.xml

@@ -8,20 +8,16 @@
         <groupId>io.github.a2asdk</groupId>
         <artifactId>a2a-java-sdk-parent</artifactId>
         <version>0.2.6.Beta1-SNAPSHOT</version>
+        <relativePath>../../pom.xml</relativePath>
     </parent>
-    <artifactId>a2a-java-reference-server</artifactId>
+    <artifactId>a2a-java-sdk-reference-common</artifactId>
 
     <packaging>jar</packaging>
 
-    <name>Java A2A Reference Server</name>
-    <description>Java SDK for the Agent2Agent Protocol (A2A) - A2A Reference Server (based on Quarkus)</description>
+    <name>Java A2A Reference Server: Common</name>
+    <description>Java SDK for the Agent2Agent Protocol (A2A) - Common classes for A2A Reference Servers (based on Quarkus)</description>
 
     <dependencies>
-        <dependency>
-            <groupId>${project.groupId}</groupId>
-            <artifactId>a2a-java-sdk-spec</artifactId>
-            <version>${project.version}</version>
-        </dependency>
         <dependency>
             <groupId>${project.groupId}</groupId>
             <artifactId>a2a-java-sdk-server-common</artifactId>

reference-impl/src/main/java/io/a2a/server/apps/quarkus/DefaultProducers.java → reference/common/src/main/java/io/a2a/server/common/quarkus/DefaultProducers.java

@@ -1,19 +1,12 @@
-package io.a2a.server.apps.quarkus;
-
-import java.util.ArrayList;
-import java.util.Collections;
+package io.a2a.server.common.quarkus;
 
 import jakarta.enterprise.context.ApplicationScoped;
 import jakarta.enterprise.inject.Default;
 import jakarta.ws.rs.Produces;
 
 import io.a2a.server.PublicAgentCard;
 import io.a2a.server.agentexecution.AgentExecutor;
-import io.a2a.server.agentexecution.RequestContext;
-import io.a2a.server.events.EventQueue;
-import io.a2a.spec.AgentCapabilities;
 import io.a2a.spec.AgentCard;
-import io.a2a.spec.JSONRPCError;
 import io.quarkus.arc.DefaultBean;
 
 /**

reference-grpc/pom.xml → reference/grpc/pom.xml

@@ -7,17 +7,22 @@
         <groupId>io.github.a2asdk</groupId>
         <artifactId>a2a-java-sdk-parent</artifactId>
         <version>0.2.6.Beta1-SNAPSHOT</version>
-        <relativePath>../pom.xml</relativePath>
+        <relativePath>../../pom.xml</relativePath>
     </parent>
 
-    <artifactId>reference-grpc</artifactId>
-    <name>Java A2A gRPC Reference Server</name>
+    <artifactId>a2a-java-sdk-reference-grpc</artifactId>
+    <name>Java A2A Reference Server: gRPC</name>
     <description>Java SDK for the Agent2Agent Protocol (A2A) - A2A gRPC Reference Server (based on Quarkus)</description>
 
     <dependencies>
         <dependency>
             <groupId>${project.groupId}</groupId>
-            <artifactId>a2a-java-sdk-grpc</artifactId>
+            <artifactId>a2a-java-sdk-reference-common</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>a2a-java-sdk-transport-grpc</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>

reference-grpc/src/main/java/io/a2a/server/grpc/quarkus/QuarkusGrpcHandler.java → reference/grpc/src/main/java/io/a2a/server/grpc/quarkus/QuarkusGrpcHandler.java

@@ -1,20 +1,11 @@
 package io.a2a.server.grpc.quarkus;
 
-import jakarta.enterprise.inject.Instance;
 import jakarta.inject.Inject;
 
-import io.a2a.grpc.SendMessageRequest;
-import io.a2a.grpc.SendMessageResponse;
-import io.a2a.grpc.StreamResponse;
-import io.a2a.grpc.Task;
-import io.a2a.grpc.TaskState;
-import io.a2a.grpc.TaskStatus;
-import io.a2a.grpc.TaskStatusUpdateEvent;
 import io.a2a.server.PublicAgentCard;
-import io.a2a.server.requesthandlers.GrpcHandler;
+import io.a2a.grpc.handler.GrpcHandler;
 import io.a2a.server.requesthandlers.RequestHandler;
 import io.a2a.spec.AgentCard;
-import io.grpc.stub.StreamObserver;
 import io.quarkus.grpc.GrpcService;
 
 @GrpcService

reference-grpc/src/test/java/io/a2a/server/grpc/quarkus/A2ATestResource.java → reference/grpc/src/test/java/io/a2a/server/grpc/quarkus/A2ATestResource.java

@@ -19,7 +19,7 @@
 import jakarta.ws.rs.core.Response;
 
 import io.a2a.server.apps.common.TestUtilsBean;
-import io.a2a.server.requesthandlers.GrpcHandler;
+import io.a2a.grpc.handler.GrpcHandler;
 import io.a2a.spec.PushNotificationConfig;
 import io.a2a.spec.Task;
 import io.a2a.spec.TaskArtifactUpdateEvent;

reference-grpc/src/test/java/io/a2a/server/grpc/quarkus/QuarkusA2AGrpcTest.java → reference/grpc/src/test/java/io/a2a/server/grpc/quarkus/QuarkusA2AGrpcTest.java

@@ -88,7 +88,7 @@ public class QuarkusA2AGrpcTest {
             .build();
     public static final String APPLICATION_JSON = "application/json";
 
-    @GrpcClient("a2-a-service")
+    @GrpcClient("a2a-service")
     A2AServiceGrpc.A2AServiceBlockingStub client;
 
     private final int serverPort = 8081;

reference/grpc/src/test/resources/application.properties

@@ -0,0 +1,5 @@
+quarkus.grpc.clients.a2a-service.host=localhost
+quarkus.grpc.clients.a2a-service.port=9001
+
+# The GrpcHandler @ApplicationScoped annotation is not compatible with Quarkus
+quarkus.arc.exclude-types=io.a2a.grpc.handler.GrpcHandler

reference/jsonrpc/pom.xml

@@ -0,0 +1,86 @@
+<?xml version="1.0"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>io.github.a2asdk</groupId>
+        <artifactId>a2a-java-sdk-parent</artifactId>
+        <version>0.2.6.Beta1-SNAPSHOT</version>
+        <relativePath>../../pom.xml</relativePath>
+    </parent>
+    <artifactId>a2a-java-sdk-reference-jsonrpc</artifactId>
+
+    <packaging>jar</packaging>
+
+    <name>Java A2A Reference Server: JSONRPC</name>
+    <description>Java SDK for the Agent2Agent Protocol (A2A) - A2A JSONRPC Reference Server (based on Quarkus)</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>a2a-java-sdk-reference-common</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>a2a-java-sdk-transport-jsonrpc</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>a2a-java-sdk-server-common</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>a2a-java-sdk-tests-server-common</artifactId>
+            <version>${project.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>a2a-java-sdk-tests-server-common</artifactId>
+            <type>test-jar</type>
+            <scope>test</scope>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-reactive-routes</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>jakarta.enterprise</groupId>
+            <artifactId>jakarta.enterprise.cdi-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>jakarta.inject</groupId>
+            <artifactId>jakarta.inject-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-junit5</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.quarkus</groupId>
+            <artifactId>quarkus-rest-client-jackson</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.rest-assured</groupId>
+            <artifactId>rest-assured</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+</project>

reference-impl/src/main/java/io/a2a/server/apps/quarkus/A2AServerRoutes.java → reference/jsonrpc/src/main/java/io/a2a/server/apps/quarkus/A2AServerRoutes.java

@@ -20,11 +20,11 @@
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.io.JsonEOFException;
 import com.fasterxml.jackson.databind.JsonNode;
+import io.a2a.jsonrpc.handler.JSONRPCHandler;
 import io.a2a.server.ExtendedAgentCard;
 import io.a2a.server.ServerCallContext;
 import io.a2a.server.auth.UnauthenticatedUser;
 import io.a2a.server.auth.User;
-import io.a2a.server.requesthandlers.JSONRPCHandler;
 import io.a2a.server.util.async.Internal;
 import io.a2a.spec.AgentCard;
 import io.a2a.spec.CancelTaskRequest;

reference-impl/src/test/java/io/a2a/server/apps/quarkus/QuarkusA2AServerTest.java → reference/jsonrpc/src/test/java/io/a2a/server/apps/quarkus/QuarkusA2AJSONRPCTest.java

@@ -4,9 +4,9 @@
 import io.quarkus.test.junit.QuarkusTest;
 
 @QuarkusTest
-public class QuarkusA2AServerTest extends AbstractA2AServerTest {
+public class QuarkusA2AJSONRPCTest extends AbstractA2AServerTest {
 
-    public QuarkusA2AServerTest() {
+    public QuarkusA2AJSONRPCTest() {
         super(8081);
     }
 }

sdk-server-common/pom.xml → server-common/pom.xml

@@ -27,11 +27,6 @@
             <artifactId>a2a-java-sdk-client</artifactId>
             <version>${project.version}</version>
         </dependency>
-        <dependency>
-            <groupId>${project.groupId}</groupId>
-            <artifactId>a2a-java-sdk-grpc</artifactId>
-            <version>${project.version}</version>
-        </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
@@ -89,21 +84,26 @@
             <artifactId>mockito-core</artifactId>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>org.mock-server</groupId>
-            <artifactId>mockserver-netty</artifactId>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
             <scope>test</scope>
         </dependency>
-        <dependency>
-            <groupId>io.grpc</groupId>
-            <artifactId>grpc-testing</artifactId>
-            <scope>test</scope>
-        </dependency>
     </dependencies>
 
-</project>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>test-jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+          </plugin>
+        </plugins>
+    </build>
+</project>