Examples with SpanBytesDecoder zipkin2.codec.SpanBytesDecoder used on opensource projects

Example 1 with SpanBytesDecoder

use of zipkin2.codec.SpanBytesDecoder in project zipkin by openzipkin.

the class UnzippingBytesRequestConverter method validateAndStoreSpans.

/**
 * This synchronously decodes the message so that users can see data errors.
 */
@SuppressWarnings("FutureReturnValueIgnored")
// check? Say it is somehow canceled, would we take action? Would callback.onError() be redundant?
HttpResponse validateAndStoreSpans(SpanBytesDecoder decoder, ServiceRequestContext ctx, HttpRequest req) {
    CompletableCallback result = new CompletableCallback();
    req.aggregateWithPooledObjects(ctx.eventLoop(), ctx.alloc()).handle((msg, t) -> {
        if (t != null) {
            result.onError(t);
            return null;
        }
        final HttpData requestContent;
        try {
            requestContent = UnzippingBytesRequestConverter.convertRequest(ctx, msg);
        } catch (Throwable t1) {
            propagateIfFatal(t1);
            result.onError(t1);
            return null;
        }
        try (HttpData content = requestContent) {
            // logging already handled upstream in UnzippingBytesRequestConverter where request context exists
            if (content.isEmpty()) {
                result.onSuccess(null);
                return null;
            }
            final ByteBuffer nioBuffer = content.byteBuf().nioBuffer();
            try {
                SpanBytesDecoderDetector.decoderForListMessage(nioBuffer);
            } catch (IllegalArgumentException e) {
                result.onError(new IllegalArgumentException("Expected a " + decoder + " encoded list\n"));
                return null;
            } catch (Throwable t1) {
                result.onError(t1);
                return null;
            }
            SpanBytesDecoder unexpectedDecoder = testForUnexpectedFormat(decoder, nioBuffer);
            if (unexpectedDecoder != null) {
                result.onError(new IllegalArgumentException("Expected a " + decoder + " encoded list, but received: " + unexpectedDecoder + "\n"));
                return null;
            }
            // collector.accept might block so need to move off the event loop. We make sure the
            // callback is context aware to continue the trace.
            Executor executor = ctx.makeContextAware(ctx.blockingTaskExecutor());
            try {
                collector.acceptSpans(nioBuffer, decoder, result, executor);
            } catch (Throwable t1) {
                result.onError(t1);
                return null;
            }
        }
        return null;
    });
    return HttpResponse.from(result);
}