Examples with NO_OP_EXISTENCE_CHECKER org.apache.kafka.controller.ConfigurationControlManager.NO_OP_EXISTENCE_CHECKER used on opensource projects

Example 1 with NO_OP_EXISTENCE_CHECKER

use of org.apache.kafka.controller.ConfigurationControlManager.NO_OP_EXISTENCE_CHECKER in project kafka by apache.

the class ReplicationControlManager method createTopics.

ControllerResult<CreateTopicsResponseData> createTopics(CreateTopicsRequestData request) {
    Map<String, ApiError> topicErrors = new HashMap<>();
    List<ApiMessageAndVersion> records = new ArrayList<>();
    // Check the topic names.
    validateNewTopicNames(topicErrors, request.topics());
    // Identify topics that already exist and mark them with the appropriate error
    request.topics().stream().filter(creatableTopic -> topicsByName.containsKey(creatableTopic.name())).forEach(t -> topicErrors.put(t.name(), new ApiError(Errors.TOPIC_ALREADY_EXISTS, "Topic '" + t.name() + "' already exists.")));
    // Verify that the configurations for the new topics are OK, and figure out what
    // ConfigRecords should be created.
    Map<ConfigResource, Map<String, Entry<OpType, String>>> configChanges = computeConfigChanges(topicErrors, request.topics());
    ControllerResult<Map<ConfigResource, ApiError>> configResult = configurationControl.incrementalAlterConfigs(configChanges, NO_OP_EXISTENCE_CHECKER);
    for (Entry<ConfigResource, ApiError> entry : configResult.response().entrySet()) {
        if (entry.getValue().isFailure()) {
            topicErrors.put(entry.getKey().name(), entry.getValue());
        }
    }
    records.addAll(configResult.records());
    // Try to create whatever topics are needed.
    Map<String, CreatableTopicResult> successes = new HashMap<>();
    for (CreatableTopic topic : request.topics()) {
        if (topicErrors.containsKey(topic.name()))
            continue;
        ApiError error;
        try {
            error = createTopic(topic, records, successes);
        } catch (ApiException e) {
            error = ApiError.fromThrowable(e);
        }
        if (error.isFailure()) {
            topicErrors.put(topic.name(), error);
        }
    }
    // Create responses for all topics.
    CreateTopicsResponseData data = new CreateTopicsResponseData();
    StringBuilder resultsBuilder = new StringBuilder();
    String resultsPrefix = "";
    for (CreatableTopic topic : request.topics()) {
        ApiError error = topicErrors.get(topic.name());
        if (error != null) {
            data.topics().add(new CreatableTopicResult().setName(topic.name()).setErrorCode(error.error().code()).setErrorMessage(error.message()));
            resultsBuilder.append(resultsPrefix).append(topic).append(": ").append(error.error()).append(" (").append(error.message()).append(")");
            resultsPrefix = ", ";
            continue;
        }
        CreatableTopicResult result = successes.get(topic.name());
        data.topics().add(result);
        resultsBuilder.append(resultsPrefix).append(topic).append(": ").append("SUCCESS");
        resultsPrefix = ", ";
    }
    if (request.validateOnly()) {
        log.info("Validate-only CreateTopics result(s): {}", resultsBuilder.toString());
        return ControllerResult.atomicOf(Collections.emptyList(), data);
    } else {
        log.info("CreateTopics result(s): {}", resultsBuilder.toString());
        return ControllerResult.atomicOf(records, data);
    }
}