Sampling,filtering and preprocessing telemetry in the Application Insights SDK

Request filtering in Application Insights with Telemetry Processor

示例处理器可能如下所示.

using Microsoft.ApplicationInsights.Channel;
using Microsoft.ApplicationInsights.Extensibility;
using Microsoft.ApplicationInsights.DataContracts;

public class NosqlDependencies : ITelemetryProcessor
{
    private ITelemetryProcessor Next { get; set; }

    // Link processors to each other in a chain.
    public NosqlDependencies(ITelemetryProcessor next)
    {
        this.Next = next;
    }
    public void Process(ITelemetry item)
    {
        if (IssqlDependency(item)) { return; }
        this.Next.Process(item);
    }

    private bool IssqlDependency(ITelemetry item)
    {
        var dependency = item as DependencyTelemetry;
        if (dependency?.DependencyTypeName == "sql")
        {
            return true;
        }
        return false;
    }
}