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

Example 1 with Transaction

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

the class TopicProducerRegister method abortTransactions.

/**
 * Abort the existed transactions. This method would be used when closing PulsarWriter.
 */
private void abortTransactions() {
    if (transactionRegister.isEmpty()) {
        return;
    }
    TransactionCoordinatorClient coordinatorClient = ((PulsarClientImpl) pulsarClient).getTcClient();
    // This null check is used for making sure transaction is enabled in client.
    checkNotNull(coordinatorClient);
    try (Closer closer = Closer.create()) {
        for (Transaction transaction : transactionRegister.values()) {
            TxnID txnID = transaction.getTxnID();
            closer.register(() -> coordinatorClient.abort(txnID));
        }
        clearTransactions();
    } catch (IOException e) {
        throw new FlinkRuntimeException(e);
    }
}

Example 2 with Transaction

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

the class TopicProducerRegister method createMessageBuilder.

/**
 * Create a TypedMessageBuilder which could be sent to Pulsar directly. First, we would create a
 * topic-related producer or use a cached instead. Then we would try to find a topic-related
 * transaction. We would generate a transaction instance if there is no transaction. Finally, we
 * create the message builder and put the element into it.
 */
public <T> TypedMessageBuilder<T> createMessageBuilder(String topic, Schema<T> schema) {
    Producer<T> producer = getOrCreateProducer(topic, schema);
    DeliveryGuarantee deliveryGuarantee = sinkConfiguration.getDeliveryGuarantee();
    if (deliveryGuarantee == DeliveryGuarantee.EXACTLY_ONCE) {
        Transaction transaction = getOrCreateTransaction(topic);
        return producer.newMessage(transaction);
    } else {
        return producer.newMessage();
    }
}