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feat: add JSON-RPC method to ServerCallContext.state #353

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Merged
merged 1 commit into from
Oct 22, 2025
Merged

feat: add JSON-RPC method to ServerCallContext.state #353

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10 changes: 10 additions & 0 deletions reference/jsonrpc/pom.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -77,5 +77,15 @@
<artifactId>rest-assured</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-core</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-junit-jupiter</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
40 changes: 19 additions & 21 deletions reference/jsonrpc/src/main/java/io/a2a/server/apps/quarkus/A2AServerRoutes.java
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Original file line number Diff line number Diff line change
@@ -1,7 +1,10 @@
package io.a2a.server.apps.quarkus;

import static io.a2a.transport.jsonrpc.context.JSONRPCContextKeys.HEADERS_KEY;
import static io.a2a.transport.jsonrpc.context.JSONRPCContextKeys.METHOD_NAME_KEY;
import static io.vertx.core.http.HttpHeaders.CONTENT_TYPE;
import static jakarta.ws.rs.core.MediaType.APPLICATION_JSON;
import static jakarta.ws.rs.core.MediaType.SERVER_SENT_EVENTS;

import java.util.HashMap;
import java.util.List;
Expand Down Expand Up @@ -91,14 +94,20 @@ public void invokeJSONRPCHandler(@Body String body, RoutingContext rc) {
JSONRPCResponse<?> nonStreamingResponse = null;
Multi<? extends JSONRPCResponse<?>> streamingResponse = null;
JSONRPCErrorResponse error = null;

try {
if (isStreamingRequest(body)) {
streaming = true;
StreamingJSONRPCRequest<?> request = Utils.OBJECT_MAPPER.readValue(body, StreamingJSONRPCRequest.class);
JsonNode node = Utils.OBJECT_MAPPER.readTree(body);
JsonNode method = node != null ? node.get("method") : null;
streaming = method != null && (SendStreamingMessageRequest.METHOD.equals(method.asText())
|| TaskResubscriptionRequest.METHOD.equals(method.asText()));
String methodName = (method != null && method.isTextual()) ? method.asText() : null;
if (methodName != null) {
context.getState().put(METHOD_NAME_KEY, methodName);
}
if (streaming) {
StreamingJSONRPCRequest<?> request = Utils.OBJECT_MAPPER.treeToValue(node, StreamingJSONRPCRequest.class);
streamingResponse = processStreamingRequest(request, context);
} else {
NonStreamingJSONRPCRequest<?> request = Utils.OBJECT_MAPPER.readValue(body, NonStreamingJSONRPCRequest.class);
NonStreamingJSONRPCRequest<?> request = Utils.OBJECT_MAPPER.treeToValue(node, NonStreamingJSONRPCRequest.class);
nonStreamingResponse = processNonStreamingRequest(request, context);
}
} catch (JsonProcessingException e) {
Expand Down Expand Up @@ -201,17 +210,6 @@ private JSONRPCResponse<?> generateErrorResponse(JSONRPCRequest<?> request, JSON
return new JSONRPCErrorResponse(request.getId(), error);
}

private static boolean isStreamingRequest(String requestBody) {
try {
JsonNode node = Utils.OBJECT_MAPPER.readTree(requestBody);
JsonNode method = node != null ? node.get("method") : null;
return method != null && (SendStreamingMessageRequest.METHOD.equals(method.asText())
|| TaskResubscriptionRequest.METHOD.equals(method.asText()));
} catch (Exception e) {
return false;
}
}

static void setStreamingMultiSseSupportSubscribedRunnable(Runnable runnable) {
streamingMultiSseSupportSubscribedRunnable = runnable;
}
Expand Down Expand Up @@ -243,7 +241,7 @@ public String getUsername() {
Map<String, String> headers = new HashMap<>();
Set<String> headerNames = rc.request().headers().names();
headerNames.forEach(name -> headers.put(name, rc.request().getHeader(name)));
state.put("headers", headers);
state.put(HEADERS_KEY, headers);

// Extract requested extensions from X-A2A-Extensions header
List<String> extensionHeaderValues = rc.request().headers().getAll(A2AHeaders.X_A2A_EXTENSIONS);
Expand All @@ -266,8 +264,8 @@ private MultiSseSupport() {
private static void initialize(HttpServerResponse response) {
if (response.bytesWritten() == 0) {
MultiMap headers = response.headers();
if (headers.get("content-type") == null) {
headers.set("content-type", "text/event-stream");
if (headers.get(CONTENT_TYPE) == null) {
headers.set(CONTENT_TYPE, SERVER_SENT_EVENTS);
}
response.setChunked(true);
}
Expand Down Expand Up @@ -340,8 +338,8 @@ public Buffer apply(Object o) {
private static void endOfStream(HttpServerResponse response) {
if (response.bytesWritten() == 0) { // No item
MultiMap headers = response.headers();
if (headers.get("content-type") == null) {
headers.set("content-type", "text/event-stream");
if (headers.get(CONTENT_TYPE) == null) {
headers.set(CONTENT_TYPE, SERVER_SENT_EVENTS);
}
}
response.end();
Expand Down
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