internal bool ReadWordFrequencyMap()
{
bool result;
using (UserConfiguration userConfiguration = this.OpenMessage(true))
{
if (userConfiguration == null)
{
TopNConfiguration.Tracer.TraceError <TopNConfiguration>((long)this.GetHashCode(), "{0}: FAI could not be opened or created.", this);
result = false;
}
else
{
using (Stream stream = userConfiguration.GetStream())
{
Exception ex = null;
try
{
Type[] allowList = new Type[]
{
typeof(KeyValuePair <string, int>)
};
this.wordFrequency = (KeyValuePair <string, int>[])SafeSerialization.SafeBinaryFormatterDeserializeWithAllowList(stream, allowList, null);
}
catch (SafeSerialization.BlockedTypeException ex2)
{
ex = ex2;
}
catch (ArgumentNullException ex3)
{
ex = ex3;
}
catch (SerializationException ex4)
{
ex = ex4;
}
catch (Exception ex5)
{
ex = ex5;
}
if (ex != null)
{
TopNConfiguration.Tracer.TraceError <TopNConfiguration, Exception>((long)this.GetHashCode(), "{0}: FAI message is corrupt. Exception: {1}", this, ex);
result = false;
}
else
{
result = true;
}
}
}
}
return(result);
}
public static bool IsSafeBinaryFormatterStreamWithAllowList(Stream serializationStream, IEnumerable <Type> allowList, SafeSerialization.TypeEncounteredDelegate typeEncounteredCallback = null)
{
return(SafeSerialization.IsSafeBinaryFormatterStreamCommon(new SafeSerialization.ValidatingBinder(new SafeSerialization.AllowList(allowList), typeEncounteredCallback), serializationStream));
}