internal static bool TryCreateCounters(IEnumerable <MailboxDatabase> databases, out Dictionary <MailboxDatabase, List <MailboxDatabaseCalculatedCounters.DiagnosticMeasurementValue> > counters)
{
if (databases == null)
{
throw new ArgumentNullException("databases");
}
counters = null;
Dictionary <MailboxDatabase, List <MailboxDatabaseCalculatedCounters.DiagnosticMeasurementValue> > dictionary = MailboxDatabaseCalculatedCounters.CreateCounters(databases);
List <MailboxDatabase> list = new List <MailboxDatabase>(dictionary.Count);
foreach (KeyValuePair <MailboxDatabase, List <MailboxDatabaseCalculatedCounters.DiagnosticMeasurementValue> > keyValuePair in dictionary)
{
Dictionary <string, float> dictionary2;
if (!keyValuePair.Key.TryLoadStatistics(out dictionary2))
{
list.Add(keyValuePair.Key);
}
else
{
foreach (MailboxDatabaseCalculatedCounters.DiagnosticMeasurementValue diagnosticMeasurementValue in keyValuePair.Value)
{
string[] array;
Func <float[], float> func;
if (MailboxDatabaseCalculatedCounters.CounterProperties.TryGetValue(diagnosticMeasurementValue.Measure.CounterName, out array) && MailboxDatabaseCalculatedCounters.CounterLogic.TryGetValue(diagnosticMeasurementValue.Measure.CounterName, out func))
{
bool flag = true;
float[] array2 = new float[array.Length];
for (int i = 0; i < array.Length; i++)
{
if (!dictionary2.TryGetValue(array[i], out array2[i]))
{
flag = false;
break;
}
}
if (!flag)
{
list.Add(keyValuePair.Key);
break;
}
if (diagnosticMeasurementValue.Value == null)
{
diagnosticMeasurementValue.Value = new float?(0f);
}
MailboxDatabaseCalculatedCounters.DiagnosticMeasurementValue diagnosticMeasurementValue2 = diagnosticMeasurementValue;
float?value = diagnosticMeasurementValue2.Value;
float num = func(array2);
diagnosticMeasurementValue2.Value = ((value != null) ? new float?(value.GetValueOrDefault() + num) : null);
}
}
}
}
foreach (MailboxDatabase key in list)
{
dictionary.Remove(key);
}
bool flag2 = dictionary.Any <KeyValuePair <MailboxDatabase, List <MailboxDatabaseCalculatedCounters.DiagnosticMeasurementValue> > >();
if (flag2)
{
counters = dictionary;
}
return(flag2);
}
