blob: 9c2ef0e5f0582b338380baf6a7a78151047f0cef [file] [log] [blame]
/*
* Licensed 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.
*/
namespace Producing
{
using DotPulsar;
using DotPulsar.Abstractions;
using DotPulsar.Extensions;
using System;
using System.Threading;
using System.Threading.Tasks;
internal static class Program
{
private static async Task Main()
{
const string myTopic = "persistent://public/default/mytopic";
var cts = new CancellationTokenSource();
Console.CancelKeyPress += (sender, args) =>
{
cts.Cancel();
args.Cancel = true;
};
await using var client = PulsarClient.Builder().Build(); //Connecting to pulsar://localhost:6650
await using var producer = client.NewProducer(Schema.String)
.StateChangedHandler(Monitor)
.Topic(myTopic)
.Create();
Console.WriteLine("Press Ctrl+C to exit");
await ProduceMessages(producer, cts.Token);
}
private static async Task ProduceMessages(IProducer<string> producer, CancellationToken cancellationToken)
{
var delay = TimeSpan.FromSeconds(5);
try
{
while (!cancellationToken.IsCancellationRequested)
{
var data = DateTime.UtcNow.ToLongTimeString();
_ = await producer.Send(data, cancellationToken);
Console.WriteLine("Sent: " + data);
await Task.Delay(delay, cancellationToken);
}
}
catch (OperationCanceledException) // If not using the cancellationToken, then just dispose the producer and catch ObjectDisposedException instead
{ }
}
private static void Monitor(ProducerStateChanged stateChanged, CancellationToken cancellationToken)
{
var stateMessage = stateChanged.ProducerState switch
{
ProducerState.Connected => "is connected",
ProducerState.Disconnected => "is disconnected",
ProducerState.PartiallyConnected => "has partially connected",
ProducerState.Closed => "has closed",
ProducerState.Faulted => "has faulted",
_ => $"has an unknown state '{stateChanged.ProducerState}'"
};
var topic = stateChanged.Producer.Topic;
Console.WriteLine($"The producer for topic '{topic}' " + stateMessage);
}
}
}