Examples with CommandGetTopicsOfNamespace org.apache.pulsar.common.api.proto.CommandGetTopicsOfNamespace used on opensource projects

Example 1 with CommandGetTopicsOfNamespace

use of org.apache.pulsar.common.api.proto.CommandGetTopicsOfNamespace in project pulsar by apache.

the class ServerCnx method handleGetTopicsOfNamespace.

@Override
protected void handleGetTopicsOfNamespace(CommandGetTopicsOfNamespace commandGetTopicsOfNamespace) {
    final long requestId = commandGetTopicsOfNamespace.getRequestId();
    final String namespace = commandGetTopicsOfNamespace.getNamespace();
    final CommandGetTopicsOfNamespace.Mode mode = commandGetTopicsOfNamespace.getMode();
    final NamespaceName namespaceName = NamespaceName.get(namespace);
    final Semaphore lookupSemaphore = service.getLookupRequestSemaphore();
    if (lookupSemaphore.tryAcquire()) {
        if (invalidOriginalPrincipal(originalPrincipal)) {
            final String msg = "Valid Proxy Client role should be provided for getTopicsOfNamespaceRequest ";
            log.warn("[{}] {} with role {} and proxyClientAuthRole {} on namespace {}", remoteAddress, msg, authRole, originalPrincipal, namespaceName);
            commandSender.sendErrorResponse(requestId, ServerError.AuthorizationError, msg);
            lookupSemaphore.release();
            return;
        }
        isNamespaceOperationAllowed(namespaceName, NamespaceOperation.GET_TOPICS).thenApply(isAuthorized -> {
            if (isAuthorized) {
                getBrokerService().pulsar().getNamespaceService().getListOfTopics(namespaceName, mode).thenAccept(topics -> {
                    if (log.isDebugEnabled()) {
                        log.debug("[{}] Received CommandGetTopicsOfNamespace for namespace [//{}] by {}, size:{}", remoteAddress, namespace, requestId, topics.size());
                    }
                    commandSender.sendGetTopicsOfNamespaceResponse(topics, requestId);
                    lookupSemaphore.release();
                }).exceptionally(ex -> {
                    log.warn("[{}] Error GetTopicsOfNamespace for namespace [//{}] by {}", remoteAddress, namespace, requestId);
                    commandSender.sendErrorResponse(requestId, BrokerServiceException.getClientErrorCode(new ServerMetadataException(ex)), ex.getMessage());
                    lookupSemaphore.release();
                    return null;
                });
            } else {
                final String msg = "Proxy Client is not authorized to GetTopicsOfNamespace";
                log.warn("[{}] {} with role {} on namespace {}", remoteAddress, msg, getPrincipal(), namespaceName);
                commandSender.sendErrorResponse(requestId, ServerError.AuthorizationError, msg);
                lookupSemaphore.release();
            }
            return null;
        }).exceptionally(ex -> {
            logNamespaceNameAuthException(remoteAddress, "GetTopicsOfNamespace", getPrincipal(), Optional.of(namespaceName), ex);
            final String msg = "Exception occurred while trying to authorize GetTopicsOfNamespace";
            commandSender.sendErrorResponse(requestId, ServerError.AuthorizationError, msg);
            lookupSemaphore.release();
            return null;
        });
    } else {
        if (log.isDebugEnabled()) {
            log.debug("[{}] Failed GetTopicsOfNamespace lookup due to too many lookup-requests {}", remoteAddress, namespaceName);
        }
        commandSender.sendErrorResponse(requestId, ServerError.TooManyRequests, "Failed due to too many pending lookup requests");
    }
}

Example 2 with CommandGetTopicsOfNamespace

use of org.apache.pulsar.common.api.proto.CommandGetTopicsOfNamespace in project pulsar by apache.

the class Commands method newGetTopicsOfNamespaceRequest.

public static ByteBuf newGetTopicsOfNamespaceRequest(String namespace, long requestId, Mode mode) {
    BaseCommand cmd = localCmd(Type.GET_TOPICS_OF_NAMESPACE);
    CommandGetTopicsOfNamespace topics = cmd.setGetTopicsOfNamespace();
    topics.setNamespace(namespace);
    topics.setRequestId(requestId);
    topics.setMode(mode);
    return serializeWithSize(cmd);
}