Michael Freidgeim's Blog

Friday, June 11, 2010 #

OutOfMemoryException in Microsoft WSE 3.0 Diagnostics.TraceInputFilter

We are still using Microsoft WSE 3.0 and on test server started to get

Event Type: Error

Event Source: Microsoft WSE 3.0

WSE054: An error occurred during the operation of the TraceInputFilter: System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.

at System.String.GetStringForStringBuilder(String value, Int32 startIndex, Int32 length, Int32 capacity)

at System.Text.StringBuilder.GetThreadSafeString(IntPtr& tid)

at System.Text.StringBuilder.set_Length(Int32 value)

at System.Xml.BufferBuilder.Clear()

at System.Xml.BufferBuilder.set_Length(Int32 value)

at System.Xml.XmlTextReaderImpl.ParseText()

at System.Xml.XmlTextReaderImpl.ParseElementContent()

at System.Xml.XmlTextReaderImpl.Read()

at System.Xml.XmlLoader.LoadNode(Boolean skipOverWhitespace)

at System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc)

at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace)

at System.Xml.XmlDocument.Load(XmlReader reader)

at System.Xml.XmlDocument.Load(Stream inStream)

at Microsoft.Web.Services3.Diagnostics.TraceInputFilter.OpenLoadExistingFile(String path)

at Microsoft.Web.Services3.Diagnostics.TraceInputFilter.Load(String path)

at Microsoft.Web.Services3.Diagnostics.TraceInputFilter.TraceMessage(String messageId, Collection`1 traceEntries).

After investigation it was found, that the problem related to trace files, that become too big. When they were deleted and new files were created, error gone.

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Posted On Friday, June 11, 2010 10:19 PM | Feedback (0)

IsNullOrDefault generic helper function for nullable types

I've wrote IsNullOrDefault generic helper function

    public static bool IsNullOrDefault<T>(this Nullable<T> param) where T : struct
   {
       T deflt = default(T);
       if (!param.HasValue)
           return true;
       else if (param.Value.Equals(deflt))
           return true;
       return false;
   }
, but then realized that there is more short implementation on stackoverflow submitted by Josh

public static bool IsNullOrDefault<T>(this Nullable<T> value) where T : struct
{
return default(T).Equals( value.GetValueOrDefault() );
}

public static bool IsValue<T>(this Nullable<T> value, T valueToCheck) where T : struct
{
return valueToCheck.Equals((value ?? valueToCheck));
}

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Posted On Friday, June 11, 2010 6:42 PM | Feedback (0)

Helper methods StartOfMonth and StartOfNextMonth

There are couple methods recently added to My DateTimeHelper class

    public static DateTime StartOfMonth(this DateTime dateValue)
       {
           return new DateTime(dateValue.Year,dateValue.Month,1,0,0,0);
       }
       public static DateTime StartOfNextMonth(this DateTime dateValue)
       {
           return StartOfMonth(dateValue).AddMonths(1);
       }