/// <summary>
/// Initializes a new instance of the <see cref="PerformanceTracer"/> class with the given logical operation name and activity id.
/// </summary>
/// <remarks>
/// The activity id will override a previous activity id
/// </remarks>
/// <param name="operation">The operation for the <see cref="PerformanceTracer"/></param>
/// <param name="activityId">The activity id</param>
/// <param name="writer">The <see cref="IPerformanceWriter"/> that is used to write trace messages</param>
public PerformanceTracer(string operation, Guid activityId, IPerformanceWriter writer)
{
if (CheckTracingAvailable())
{
if (writer == null)
{
throw new ArgumentNullException("writer");
}
SetActivityId(activityId);
_writer = writer;
Initialize(operation);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="PerformanceTracer"/> class with the given logical operation name.
/// </summary>
/// <remarks>
/// If an existing activity id is already set, it will be kept. Otherwise, a new activity id will be created.
/// </remarks>
/// <param name="operation">The operation for the <see cref="PerformanceTracer"/></param>
/// <param name="writer">The <see cref="IPerformanceWriter"/> that is used to write trace messages</param>
public PerformanceTracer(string operation, IPerformanceWriter writer)
{
if (CheckTracingAvailable())
{
if (writer == null)
{
throw new ArgumentNullException("writer");
}
_writer = writer;
if (GetActivityId().Equals(Guid.Empty))
{
SetActivityId(Guid.NewGuid());
}
Initialize(operation);
}
}
private IPerformanceWriter GetWriter()
{
return(_writer ?? (_writer = new DebugPerformanceWriter()));
}
