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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Diagnostics
{
using System.Diagnostics;
using System.Runtime;
using System.ServiceModel;
using System.ServiceModel.Administration;
using System.Diagnostics.PerformanceData;
abstract class EndpointPerformanceCountersBase : PerformanceCountersBase
{
protected string instanceName;
protected enum PerfCounters : int
{
Calls = 0,
CallsPerSecond,
CallsOutstanding,
CallsFailed,
CallsFailedPerSecond,
CallsFaulted,
CallsFaultedPerSecond,
CallDuration,
CallDurationBase,
SecurityValidationAuthenticationFailures,
SecurityValidationAuthenticationFailuresPerSecond,
CallsNotAuthorized,
CallsNotAuthorizedPerSecond,
RMSessionsFaulted,
RMSessionsFaultedPerSecond,
RMMessagesDropped,
RMMessagesDroppedPerSecond,
TxFlowed,
TxFlowedPerSecond,
TotalCounters = TxFlowedPerSecond + 1
}
protected static readonly string[] perfCounterNames =
{
PerformanceCounterStrings.SERVICEMODELENDPOINT.ECalls,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ECallsPerSecond,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ECallsOutstanding,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ECallsFailed,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ECallsFailedPerSecond,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ECallsFaulted,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ECallsFaultedPerSecond,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ECallDuration,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ECallDurationBase,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ESecurityValidationAuthenticationFailures,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ESecurityValidationAuthenticationFailuresPerSecond,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ESecurityCallsNotAuthorized,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ESecurityCallsNotAuthorizedPerSecond,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ERMSessionsFaulted,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ERMSessionsFaultedPerSecond,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ERMMessagesDropped,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ERMMessagesDroppedPerSecond,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ETxFlowed,
PerformanceCounterStrings.SERVICEMODELENDPOINT.ETxFlowedPerSecond,
};
const int maxCounterLength = 64;
const int hashLength = 2;
[Flags]
enum truncOptions : uint
{
NoBits = 0,
service15 = 0x01,
contract16 = 0x02,
uri31 = 0x04
}
internal EndpointPerformanceCountersBase(string service, string contract, string uri)
{
this.instanceName = CreateFriendlyInstanceName(service, contract, uri);
}
private static string GetFullInstanceName(string service, string contract, string uri)
{
// instance name is: serviceName.interfaceName.operationName@uri
return String.Format("{0}.{1}@{2}", service, contract, uri);
}
private static string GetShortInstanceName(string service, string contract, string uri)
{
int length = service.Length + contract.Length + uri.Length + 2;
if (length > maxCounterLength)
{
int count = 0;
truncOptions tasks = EndpointPerformanceCounters.GetCompressionTasks(
length, service.Length, contract.Length, uri.Length);
//if necessary, compress service name to 13 chars with a 2 char hash code
if ((tasks & truncOptions.service15) > 0)
{
count = 15;
service = GetHashedString(service, count - hashLength, service.Length - count + hashLength, true);
}
//if necessary, compress contract name to 14 chars with a 2 char hash code
if ((tasks & truncOptions.contract16) > 0)
{
count = 16;
contract = GetHashedString(contract, count - hashLength, contract.Length - count + hashLength, true);
}
//if necessary, compress uri to 29 chars with a 2 char hash code
if ((tasks & truncOptions.uri31) > 0)
{
count = 31;
uri = GetHashedString(uri, 0, uri.Length - count + hashLength, false);
}
}
// replace '/' with '|' because perfmon fails when '/' is in perfcounter instance name
return service + "." + contract + "@" + uri.Replace('/', '|');
}
internal static string CreateFriendlyInstanceName(string service, string contract, string uri)
{
string shortInstanceName = GetShortInstanceName(service, contract, uri);
if (!ServiceModelAppSettings.EnsureUniquePerformanceCounterInstanceNames)
{
return shortInstanceName;
}
string fullInstanceName = GetFullInstanceName(service, contract, uri);
return EnsureUniqueInstanceName(PerformanceCounterStrings.SERVICEMODELENDPOINT.EndpointPerfCounters, shortInstanceName, fullInstanceName);
}
internal static string GetFriendlyInstanceName(string service, string contract, string uri)
{
string shortInstanceName = GetShortInstanceName(service, contract, uri);
if (!ServiceModelAppSettings.EnsureUniquePerformanceCounterInstanceNames)
{
return shortInstanceName;
}
string fullInstanceName = GetFullInstanceName(service, contract, uri);
return GetUniqueInstanceName(PerformanceCounterStrings.SERVICEMODELENDPOINT.EndpointPerfCounters, shortInstanceName, fullInstanceName);
}
private static truncOptions GetCompressionTasks(int totalLen, int serviceLen, int contractLen, int uriLen)
{
truncOptions bitmask = 0;
if (totalLen > maxCounterLength)
{
int workingLen = totalLen;
//note: order of if statements important (see spec)!
if (workingLen > maxCounterLength && serviceLen > 15)
{
bitmask |= truncOptions.service15; //compress service name to 16 chars
workingLen -= serviceLen - 15;
}
if (workingLen > maxCounterLength && contractLen > 16)
{
bitmask |= truncOptions.contract16; //compress contract name to 8 chars
workingLen -= contractLen - 16;
}
if (workingLen > maxCounterLength && uriLen > 31)
{
bitmask |= truncOptions.uri31; //compress uri to 31 chars
}
}
return bitmask;
}
internal override string InstanceName
{
get
{
return this.instanceName;
}
}
internal override string[] CounterNames
{
get
{
return perfCounterNames;
}
}
internal override int PerfCounterStart
{
get { return (int)PerfCounters.Calls; }
}
internal override int PerfCounterEnd
{
get { return (int)PerfCounters.TotalCounters; }
}
internal abstract void MethodCalled();
internal abstract void MethodReturnedSuccess();
internal abstract void MethodReturnedError();
internal abstract void MethodReturnedFault();
internal abstract void SaveCallDuration(long time);
internal abstract void AuthenticationFailed();
internal abstract void AuthorizationFailed();
internal abstract void SessionFaulted();
internal abstract void MessageDropped();
internal abstract void TxFlowed();
}
}
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