[英]IQueueProcessorFactory on Azure WebJobs 3.0?
随着Azure的WebJobs 2.0实施的实例IQueueProcessorFactory
我必须做这样的事情:
_jobHostConfiguration = new JobHostConfiguration {
StorageConnectionString = "XXX"
DashboardConnectionString = "XXX"
};
_jobHostConfiguration.Queues.QueueProcessorFactory = new CustomQueueProcessorFactory();
其中CustomQueueProcessorFactory
是这样的:
public class CustomQueueProcessorFactory: IQueueProcessorFactory
{
public QueueProcessor Create(QueueProcessorFactoryContext context)
{
if (context == null) throw new ArgumentNullException(nameof(context));
if (context.Queue.Name.Equals("queue_A") {
context.BatchSize = 32;
context.NewBatchThreshold = 100;
}
if (context.Queue.Name.Equals("queue_B")) {
context.BatchSize = 2;
}
return new QueueProcessor(context);
}
}
我的问题是:如何使用Azure WebJobs 3.0做同样的事情 ?
我找不到任何样品。
在Webjob 3.0中, QueuesOptions
中的AddAzureStorage
属性没有QueueProcessorFactory。
因此,您可以使用builder.ConfigureServices(s => s.AddSingleton<IQueueProcessorFactory>(factory));
注入IQueueProcessorFactory
。 请参考以下步骤:
1.Program.cs。
class Program
{
static void Main(string[] args)
{
var builder = new HostBuilder();
var factory = new CustomQueueProcessorFactory();
builder.ConfigureWebJobs(b =>
{
b.AddAzureStorageCoreServices();
b.AddAzureStorage();
});
builder.ConfigureServices(s => s.AddSingleton<IQueueProcessorFactory>(factory));
builder.ConfigureAppConfiguration((context, config) =>
{
config.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true);
});
var host = builder.Build();
using (host)
{
host.Run();
}
}
}
public class CustomQueueProcessorFactory : IQueueProcessorFactory
{
public QueueProcessor Create(QueueProcessorFactoryContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (context.Queue.Name.ToString() == "queue")
{
context.MaxDequeueCount = 10;
}
else if (context.Queue.Name.ToString() == "queue1")
{
context.MaxDequeueCount = 10;
context.BatchSize = 1;
}
return new QueueProcessor(context);
}
}
2.Function.cs:
public static void ProcessQueueMessage([QueueTrigger("queue1")] string message, TextWriter log)
{
log.WriteLine(message);
}
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