public WorkItemController(ILogger <WorkItemController> log,
IOptions <QueueConnectionConfig> config)
{
this.log = log;
this.config = config.Value;
this.diagnosticSource = new RabbitMQDiagnosticsSource("send");
}
public QueueProcessor(ILogger <QueueProcessor> log,
IOptions <QueueConnectionConfig> config)
{
this.log = log;
this.config = config.Value;
this.diagnosticSource = new RabbitMQDiagnosticsSource("receive");
}
public IActionResult Post(string payload)
{
log.LogInformation($"about to send {payload}");
var cf = new ConnectionFactory().FromConfig(config);
using (var rabbitConnection = cf.CreateConnection())
{
using (var channel = rabbitConnection.CreateModel())
{
channel.QueueDeclare(queue: "queue1",
durable: false,
exclusive: false,
autoDelete: false,
arguments: null);
var body = Encoding.UTF8.GetBytes(payload);
var props = channel.CreateBasicProperties();
bool isDiagnosticSourceEnabled = RabbitMQDiagnosticsSource.IsEnabled();
Activity activity = isDiagnosticSourceEnabled ? this.diagnosticSource.SendStart(props) : null;
try
{
channel.BasicPublish(exchange: "",
routingKey: "queue1",
basicProperties: props,
body: body);
}
catch (Exception ex)
{
this.diagnosticSource.ReportException(ex);
}
finally
{
this.diagnosticSource.SendStop(activity, null);
log.LogInformation($"done sending {payload}");
}
}
}
return(Ok());
}
protected override async Task ExecuteAsync(CancellationToken cancellationToken)
{
var cf = new ConnectionFactory().FromConfig(config);
using (var rabbitConnection = cf.CreateConnection())
{
using (var channel = rabbitConnection.CreateModel())
{
channel.QueueDeclare(queue: "queue1",
durable: false,
exclusive: false,
autoDelete: false,
arguments: null);
var consumer = new EventingBasicConsumer(channel);
consumer.Received += async(model, ea) =>
{
var body = Encoding.UTF8.GetString(ea.Body.ToArray());
log.LogInformation($"received {body}");
bool isDiagnosticSourceEnabled = RabbitMQDiagnosticsSource.IsEnabled();
Activity activity = isDiagnosticSourceEnabled ? this.diagnosticSource.ProcessStart(ea.BasicProperties) : null;
try
{
log.LogInformation($"starting some http call... ");
var client = new HttpClient();
var msg = await client.GetAsync("https://www.microsoft.com");
log.LogInformation($"http call completed ");
if (body.StartsWith("+") && body.Length > 1)
{
var props = channel.CreateBasicProperties();
Activity sendActivity = isDiagnosticSourceEnabled ? this.diagnosticSource.SendStart(props) : null;
var payload = body.Substring(1);
try
{
channel.BasicPublish(exchange: "",
routingKey: "queue1",
basicProperties: props,
body: Encoding.UTF8.GetBytes(payload));
}
catch (Exception ex)
{
this.diagnosticSource.ReportException(ex);
}
finally
{
this.diagnosticSource.SendStop(sendActivity, null);
log.LogInformation($"- done routing {payload}");
}
}
}
catch (Exception e)
{
this.diagnosticSource.ReportException(e);
throw;
}
finally
{
this.diagnosticSource.ProcessStop(activity, null);
}
};
channel.BasicConsume(queue: "queue1",
autoAck: true,
consumer: consumer);
while (!cancellationToken.IsCancellationRequested)
{
await Task.Delay(1000, cancellationToken);
}
}
}
}