Examples with JsonResponse io.airlift.http.client.FullJsonResponseHandler.JsonResponse used on opensource projects

Example 1 with JsonResponse

use of io.airlift.http.client.FullJsonResponseHandler.JsonResponse in project presto by prestodb.

the class RemoteNodeState method asyncRefresh.

public synchronized void asyncRefresh() {
    Duration sinceUpdate = nanosSince(lastUpdateNanos.get());
    if (nanosSince(lastWarningLogged.get()).toMillis() > 1_000 && sinceUpdate.toMillis() > 10_000 && future.get() != null) {
        log.warn("Node state update request to %s has not returned in %s", stateInfoUri, sinceUpdate.toString(SECONDS));
        lastWarningLogged.set(System.nanoTime());
    }
    if (sinceUpdate.toMillis() > 1_000 && future.get() == null) {
        Request request = prepareGet().setUri(stateInfoUri).setHeader(CONTENT_TYPE, JSON_UTF_8.toString()).build();
        HttpResponseFuture<JsonResponse<NodeState>> responseFuture = httpClient.executeAsync(request, createFullJsonResponseHandler(jsonCodec(NodeState.class)));
        future.compareAndSet(null, responseFuture);
        Futures.addCallback(responseFuture, new FutureCallback<JsonResponse<NodeState>>() {

            @Override
            public void onSuccess(@Nullable JsonResponse<NodeState> result) {
                lastUpdateNanos.set(System.nanoTime());
                future.compareAndSet(responseFuture, null);
                if (result != null) {
                    if (result.hasValue()) {
                        nodeState.set(ofNullable(result.getValue()));
                    }
                    if (result.getStatusCode() != OK.code()) {
                        log.warn("Error fetching node state from %s returned status %d: %s", stateInfoUri, result.getStatusCode(), result.getStatusMessage());
                        return;
                    }
                }
            }

            @Override
            public void onFailure(Throwable t) {
                log.warn("Error fetching node state from %s: %s", stateInfoUri, t.getMessage());
                lastUpdateNanos.set(System.nanoTime());
                future.compareAndSet(responseFuture, null);
            }
        });
    }
}