pulsar-client-cpp/examples/SampleConsumerListener.cc

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
#include <iostream>

#include <pulsar/Client.h>

#include <lib/LogUtils.h>

DECLARE_LOG_OBJECT()

using namespace pulsar;

void listener(Consumer consumer, const Message& msg) {
    LOG_INFO("Got message " << msg << " with content '" << msg.getDataAsString() << "'");

    consumer.acknowledge(msg.getMessageId());
}

int main() {
    Client client("pulsar://localhost:6650");

    Consumer consumer;
    ConsumerConfiguration config;
    config.setMessageListener(listener);
    Result result = client.subscribe("persistent://prop/r1/ns1/my-topic", "consumer-1", config, consumer);
    if (result != ResultOk) {
        LOG_ERROR("Failed to subscribe: " << result);
        return -1;
    }

    // Wait
    int n;
    std::cin >> n;

    client.close();
}