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brasseldbrasseld
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chore: Re-organize sub-modules to extract the client part from the core to ease client extensibility with new implementation
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‎README.md‎

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Original file line numberDiff line numberDiff line change
@@ -42,7 +42,7 @@ The A2A Java SDK provides a Java server implementation of the [Agent2Agent (A2A)
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```xml
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<dependency>
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<groupId>io.a2a.sdk</groupId>
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<artifactId>a2a-java-sdk-core</artifactId>
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<artifactId>a2a-java-sdk-client</artifactId>
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<version>0.2.3</version>
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</dependency>
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```

‎client/pom.xml‎

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@@ -0,0 +1,45 @@
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<?xml version="1.0"?>
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<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"
3+
xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<modelVersion>4.0.0</modelVersion>
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7+
<parent>
8+
<groupId>io.a2a.sdk</groupId>
9+
<artifactId>a2a-java-sdk-parent</artifactId>
10+
<version>0.2.4-SNAPSHOT</version>
11+
</parent>
12+
<artifactId>a2a-java-sdk-client</artifactId>
13+
14+
<packaging>jar</packaging>
15+
16+
<name>Java SDK A2A Client</name>
17+
<description>Java SDK for the Agent2Agent Protocol (A2A) - Client</description>
18+
19+
<dependencies>
20+
<dependency>
21+
<groupId>io.a2a.sdk</groupId>
22+
<artifactId>a2a-java-sdk-common</artifactId>
23+
<version>${project.version}</version>
24+
</dependency>
25+
26+
<dependency>
27+
<groupId>io.a2a.sdk</groupId>
28+
<artifactId>a2a-java-sdk-model</artifactId>
29+
<version>${project.version}</version>
30+
</dependency>
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32+
<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter-api</artifactId>
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<scope>test</scope>
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</dependency>
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38+
<dependency>
39+
<groupId>org.mock-server</groupId>
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<artifactId>mockserver-netty</artifactId>
41+
<scope>test</scope>
42+
</dependency>
43+
</dependencies>
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</project>

core/src/main/java/io/a2a/spec/A2A.java renamed to client/src/main/java/io/a2a/A2A.java

Lines changed: 6 additions & 24 deletions
Original file line numberDiff line numberDiff line change
@@ -1,29 +1,23 @@
1-
package io.a2a.spec;
1+
package io.a2a;
22

33
import java.util.Collections;
44
import java.util.Map;
55

66
import io.a2a.client.A2ACardResolver;
77
import io.a2a.http.A2AHttpClient;
88
import io.a2a.http.JdkA2AHttpClient;
9+
import io.a2a.spec.A2AClientError;
10+
import io.a2a.spec.A2AClientJSONError;
11+
import io.a2a.spec.AgentCard;
12+
import io.a2a.spec.Message;
13+
import io.a2a.spec.TextPart;
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1015

1116
/**
1217
* Constants and utility methods related to the A2A protocol.
1318
*/
1419
public class A2A {
1520

16-
public static final String CANCEL_TASK_METHOD = "tasks/cancel";
17-
public static final String GET_TASK_PUSH_NOTIFICATION_CONFIG_METHOD = "tasks/pushNotificationConfig/get";
18-
public static final String GET_TASK_METHOD = "tasks/get";
19-
public static final String SET_TASK_PUSH_NOTIFICATION_CONFIG_METHOD = "tasks/pushNotificationConfig/set";
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public static final String SEND_TASK_RESUBSCRIPTION_METHOD = "tasks/resubscribe";
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public static final String SEND_STREAMING_MESSAGE_METHOD = "message/stream";
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public static final String SEND_MESSAGE_METHOD = "message/send";
23-
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public static final String JSONRPC_VERSION = "2.0";
25-
26-
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/**
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* Convert the given text to a user message.
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*
@@ -133,16 +127,4 @@ public static AgentCard getAgentCard(A2AHttpClient httpClient, String agentUrl,
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A2ACardResolver resolver = new A2ACardResolver(httpClient, agentUrl, relativeCardPath, authHeaders);
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return resolver.getAgentCard();
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}
136-
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protected static boolean isValidMethodName(String methodName) {
138-
return methodName != null && (methodName.equals(CANCEL_TASK_METHOD)
139-
|| methodName.equals(GET_TASK_METHOD)
140-
|| methodName.equals(GET_TASK_PUSH_NOTIFICATION_CONFIG_METHOD)
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|| methodName.equals(SET_TASK_PUSH_NOTIFICATION_CONFIG_METHOD)
142-
|| methodName.equals(SEND_TASK_RESUBSCRIPTION_METHOD)
143-
|| methodName.equals(SEND_MESSAGE_METHOD)
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|| methodName.equals(SEND_STREAMING_MESSAGE_METHOD));
145-
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}
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148130
}

core/src/main/java/io/a2a/client/A2ACardResolver.java renamed to client/src/main/java/io/a2a/client/A2ACardResolver.java

File renamed without changes.

core/src/main/java/io/a2a/client/A2AClient.java renamed to client/src/main/java/io/a2a/client/A2AClient.java

Lines changed: 19 additions & 27 deletions
Original file line numberDiff line numberDiff line change
@@ -1,16 +1,6 @@
11
package io.a2a.client;
22

3-
import static io.a2a.spec.A2A.CANCEL_TASK_METHOD;
4-
import static io.a2a.spec.A2A.GET_TASK_METHOD;
5-
import static io.a2a.spec.A2A.GET_TASK_PUSH_NOTIFICATION_CONFIG_METHOD;
6-
import static io.a2a.spec.A2A.JSONRPC_VERSION;
7-
import static io.a2a.spec.A2A.SEND_MESSAGE_METHOD;
8-
import static io.a2a.spec.A2A.SEND_STREAMING_MESSAGE_METHOD;
9-
import static io.a2a.spec.A2A.SEND_TASK_RESUBSCRIPTION_METHOD;
10-
import static io.a2a.spec.A2A.SET_TASK_PUSH_NOTIFICATION_CONFIG_METHOD;
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import static io.a2a.util.Assert.checkNotNullParam;
12-
import static io.a2a.util.Utils.OBJECT_MAPPER;
13-
import static io.a2a.util.Utils.unmarshalFrom;
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import java.io.IOException;
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import java.util.Map;
@@ -24,7 +14,7 @@
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import io.a2a.http.A2AHttpClient;
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import io.a2a.http.A2AHttpResponse;
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import io.a2a.http.JdkA2AHttpClient;
27-
import io.a2a.spec.A2A;
17+
import io.a2a.A2A;
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import io.a2a.spec.A2AClientError;
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import io.a2a.spec.A2AClientJSONError;
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import io.a2a.spec.A2AServerException;
@@ -36,6 +26,7 @@
3626
import io.a2a.spec.GetTaskRequest;
3727
import io.a2a.spec.GetTaskResponse;
3828
import io.a2a.spec.JSONRPCError;
29+
import io.a2a.spec.JSONRPCMessage;
3930
import io.a2a.spec.JSONRPCResponse;
4031
import io.a2a.spec.MessageSendParams;
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import io.a2a.spec.PushNotificationConfig;
@@ -49,6 +40,7 @@
4940
import io.a2a.spec.TaskPushNotificationConfig;
5041
import io.a2a.spec.TaskQueryParams;
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import io.a2a.spec.TaskResubscriptionRequest;
43+
import io.a2a.util.Utils;
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5345
/**
5446
* An A2A client.
@@ -158,8 +150,8 @@ public SendMessageResponse sendMessage(MessageSendParams messageSendParams) thro
158150
*/
159151
public SendMessageResponse sendMessage(String requestId, MessageSendParams messageSendParams) throws A2AServerException {
160152
SendMessageRequest.Builder sendMessageRequestBuilder = new SendMessageRequest.Builder()
161-
.jsonrpc(JSONRPC_VERSION)
162-
.method(SEND_MESSAGE_METHOD)
153+
.jsonrpc(JSONRPCMessage.JSONRPC_VERSION)
154+
.method(SendMessageRequest.METHOD)
163155
.params(messageSendParams);
164156

165157
if (requestId != null) {
@@ -210,8 +202,8 @@ public GetTaskResponse getTask(TaskQueryParams taskQueryParams) throws A2AServer
210202
*/
211203
public GetTaskResponse getTask(String requestId, TaskQueryParams taskQueryParams) throws A2AServerException {
212204
GetTaskRequest.Builder getTaskRequestBuilder = new GetTaskRequest.Builder()
213-
.jsonrpc(JSONRPC_VERSION)
214-
.method(GET_TASK_METHOD)
205+
.jsonrpc(JSONRPCMessage.JSONRPC_VERSION)
206+
.method(GetTaskRequest.METHOD)
215207
.params(taskQueryParams);
216208

217209
if (requestId != null) {
@@ -260,8 +252,8 @@ public CancelTaskResponse cancelTask(TaskIdParams taskIdParams) throws A2AServer
260252
*/
261253
public CancelTaskResponse cancelTask(String requestId, TaskIdParams taskIdParams) throws A2AServerException {
262254
CancelTaskRequest.Builder cancelTaskRequestBuilder = new CancelTaskRequest.Builder()
263-
.jsonrpc(JSONRPC_VERSION)
264-
.method(CANCEL_TASK_METHOD)
255+
.jsonrpc(JSONRPCMessage.JSONRPC_VERSION)
256+
.method(CancelTaskRequest.METHOD)
265257
.params(taskIdParams);
266258

267259
if (requestId != null) {
@@ -310,8 +302,8 @@ public GetTaskPushNotificationConfigResponse getTaskPushNotificationConfig(TaskI
310302
*/
311303
public GetTaskPushNotificationConfigResponse getTaskPushNotificationConfig(String requestId, TaskIdParams taskIdParams) throws A2AServerException {
312304
GetTaskPushNotificationConfigRequest.Builder getTaskPushNotificationRequestBuilder = new GetTaskPushNotificationConfigRequest.Builder()
313-
.jsonrpc(JSONRPC_VERSION)
314-
.method(GET_TASK_PUSH_NOTIFICATION_CONFIG_METHOD)
305+
.jsonrpc(JSONRPCMessage.JSONRPC_VERSION)
306+
.method(GetTaskPushNotificationConfigRequest.METHOD)
315307
.params(taskIdParams);
316308

317309
if (requestId != null) {
@@ -353,8 +345,8 @@ public SetTaskPushNotificationConfigResponse setTaskPushNotificationConfig(Strin
353345
public SetTaskPushNotificationConfigResponse setTaskPushNotificationConfig(String requestId, String taskId,
354346
PushNotificationConfig pushNotificationConfig) throws A2AServerException {
355347
SetTaskPushNotificationConfigRequest.Builder setTaskPushNotificationRequestBuilder = new SetTaskPushNotificationConfigRequest.Builder()
356-
.jsonrpc(JSONRPC_VERSION)
357-
.method(SET_TASK_PUSH_NOTIFICATION_CONFIG_METHOD)
348+
.jsonrpc(JSONRPCMessage.JSONRPC_VERSION)
349+
.method(SetTaskPushNotificationConfigRequest.METHOD)
358350
.params(new TaskPushNotificationConfig(taskId, pushNotificationConfig));
359351

360352
if (requestId != null) {
@@ -403,8 +395,8 @@ public void sendStreamingMessage(String requestId, MessageSendParams messageSend
403395
checkNotNullParam("failureHandler", failureHandler);
404396

405397
SendStreamingMessageRequest.Builder sendStreamingMessageRequestBuilder = new SendStreamingMessageRequest.Builder()
406-
.jsonrpc(JSONRPC_VERSION)
407-
.method(SEND_STREAMING_MESSAGE_METHOD)
398+
.jsonrpc(JSONRPCMessage.JSONRPC_VERSION)
399+
.method(SendStreamingMessageRequest.METHOD)
408400
.params(messageSendParams);
409401

410402
if (requestId != null) {
@@ -462,8 +454,8 @@ public void resubscribeToTask(String requestId, TaskIdParams taskIdParams, Consu
462454
checkNotNullParam("failureHandler", failureHandler);
463455

464456
TaskResubscriptionRequest.Builder taskResubscriptionRequestBuilder = new TaskResubscriptionRequest.Builder()
465-
.jsonrpc(JSONRPC_VERSION)
466-
.method(SEND_TASK_RESUBSCRIPTION_METHOD)
457+
.jsonrpc(JSONRPCMessage.JSONRPC_VERSION)
458+
.method(TaskResubscriptionRequest.METHOD)
467459
.params(taskIdParams);
468460

469461
if (requestId != null) {
@@ -502,13 +494,13 @@ private A2AHttpClient.PostBuilder createPostBuilder(Object value) throws JsonPro
502494
return httpClient.createPost()
503495
.url(agentUrl)
504496
.addHeader("Content-Type", "application/json")
505-
.body(OBJECT_MAPPER.writeValueAsString(value));
497+
.body(Utils.OBJECT_MAPPER.writeValueAsString(value));
506498

507499
}
508500

509501
private <T extends JSONRPCResponse> T unmarshalResponse(String response, TypeReference<T> typeReference)
510502
throws A2AServerException, JsonProcessingException {
511-
T value = unmarshalFrom(response, typeReference);
503+
T value = Utils.unmarshalFrom(response, typeReference);
512504
JSONRPCError error = value.getError();
513505
if (error != null) {
514506
throw new A2AServerException(error.getMessage() + (error.getData() != null ? ": " + error.getData() : ""));

core/src/main/java/io/a2a/client/sse/SSEEventListener.java renamed to client/src/main/java/io/a2a/client/sse/SSEEventListener.java

File renamed without changes.

core/src/main/java/io/a2a/http/A2AHttpClient.java renamed to client/src/main/java/io/a2a/http/A2AHttpClient.java

File renamed without changes.

core/src/main/java/io/a2a/http/A2AHttpResponse.java renamed to client/src/main/java/io/a2a/http/A2AHttpResponse.java

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core/src/main/java/io/a2a/http/JdkA2AHttpClient.java renamed to client/src/main/java/io/a2a/http/JdkA2AHttpClient.java

File renamed without changes.

core/src/main/resources/META-INF/beans.xml renamed to client/src/main/resources/META-INF/beans.xml

File renamed without changes.

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