Examples with SubscriptionInitialPosition org.apache.pulsar.client.api.SubscriptionInitialPosition used on opensource projects

Example 1 with SubscriptionInitialPosition

use of org.apache.pulsar.client.api.SubscriptionInitialPosition in project flink by apache.

the class PulsarRuntimeOperator method createConsumer.

@SuppressWarnings("unchecked")
private <T> Consumer<T> createConsumer(String topic, Schema<T> schema) throws PulsarClientException {
    TopicName topicName = TopicName.get(topic);
    String name = topicName.getPartitionedTopicName();
    int index = topicName.getPartitionIndex();
    ConcurrentHashMap<Integer, Consumer<?>> topicConsumers = consumers.computeIfAbsent(name, d -> new ConcurrentHashMap<>());
    return (Consumer<T>) topicConsumers.computeIfAbsent(index, i -> {
        try {
            return client().newConsumer(schema).topic(topic).subscriptionName(SUBSCRIPTION_NAME).subscriptionMode(Durable).subscriptionType(Exclusive).subscriptionInitialPosition(SubscriptionInitialPosition.Earliest).subscribe();
        } catch (PulsarClientException e) {
            sneakyThrow(e);
            return null;
        }
    });
}