Examples with Result org.apache.dubbo.rpc.Result used on opensource projects

Example 96 with Result

use of org.apache.dubbo.rpc.Result in project brave by openzipkin.

the class TracingFilter method invoke.

@Override
public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
    if (!isInit)
        return invoker.invoke(invocation);
    TraceContext invocationContext = currentTraceContext.get();
    RpcContext rpcContext = RpcContext.getContext();
    Kind kind = rpcContext.isProviderSide() ? Kind.SERVER : Kind.CLIENT;
    Span span;
    DubboRequest request;
    if (kind.equals(Kind.CLIENT)) {
        // When A service invoke B service, then B service then invoke C service, the parentId of the
        // C service span is A when read from invocation.getAttachments(). This is because
        // AbstractInvoker adds attachments via RpcContext.getContext(), not the invocation.
        // See org.apache.dubbo.rpc.protocol.AbstractInvoker(line 141) from v2.7.3
        Map<String, String> attachments = RpcContext.getContext().getAttachments();
        DubboClientRequest clientRequest = new DubboClientRequest(invoker, invocation, attachments);
        request = clientRequest;
        span = clientHandler.handleSendWithParent(clientRequest, invocationContext);
    } else {
        DubboServerRequest serverRequest = new DubboServerRequest(invoker, invocation);
        request = serverRequest;
        span = serverHandler.handleReceive(serverRequest);
    }
    boolean isSynchronous = true;
    Scope scope = currentTraceContext.newScope(span.context());
    Result result = null;
    Throwable error = null;
    try {
        result = invoker.invoke(invocation);
        error = result.getException();
        CompletableFuture<Object> future = rpcContext.getCompletableFuture();
        if (future != null) {
            isSynchronous = false;
            // NOTE: We don't currently instrument CompletableFuture, so callbacks will not see the
            // invocation context unless they use an executor instrumented by CurrentTraceContext
            // If we later instrument this, take care to use the correct context depending on RPC kind!
            future.whenComplete(FinishSpan.create(this, request, result, span));
        }
        return result;
    } catch (Throwable e) {
        propagateIfFatal(e);
        error = e;
        throw e;
    } finally {
        if (isSynchronous)
            FinishSpan.finish(this, request, result, error, span);
        scope.close();
    }
}

Example 97 with Result

use of org.apache.dubbo.rpc.Result in project brave by openzipkin.

the class ITTracingFilter_Provider method customParser.

@Test
public void customParser() {
    Tag<DubboResponse> javaValue = new Tag<DubboResponse>("dubbo.result_value") {

        @Override
        protected String parseValue(DubboResponse input, TraceContext context) {
            Result result = input.result();
            if (result == null)
                return null;
            return String.valueOf(result.getValue());
        }
    };
    RpcTracing rpcTracing = RpcTracing.newBuilder(tracing).serverResponseParser((res, context, span) -> {
        RpcResponseParser.DEFAULT.parse(res, context, span);
        if (res instanceof DubboResponse) {
            javaValue.tag((DubboResponse) res, span);
        }
    }).build();
    init().setRpcTracing(rpcTracing);
    String javaResult = client.get().sayHello("jorge");
    assertThat(testSpanHandler.takeRemoteSpan(SERVER).tags()).containsEntry("dubbo.result_value", javaResult);
}