internal static T GetPropertyValue <T>(PSObject psObject, string propertyName)
{
using (RemotingDecoder._trace.TraceMethod())
{
if (psObject == null)
{
throw RemotingDecoder._trace.NewArgumentNullException(nameof(psObject));
}
if (propertyName == null)
{
throw RemotingDecoder._trace.NewArgumentNullException(nameof(propertyName));
}
object propertyValue = RemotingDecoder.GetProperty(psObject, propertyName).Value;
return(RemotingDecoder.ConvertPropertyValueTo <T>(propertyName, propertyValue));
}
}
internal static IEnumerable <T> EnumerateListProperty <T>(
PSObject psObject,
string propertyName)
{
using (RemotingDecoder._trace.TraceMethod())
{
if (psObject == null)
{
throw RemotingDecoder._trace.NewArgumentNullException(nameof(psObject));
}
IEnumerable e = propertyName != null?RemotingDecoder.GetPropertyValue <IEnumerable>(psObject, propertyName) : throw RemotingDecoder._trace.NewArgumentNullException(nameof(propertyName));
if (e != null)
{
foreach (object propertyValue in e)
{
yield return(RemotingDecoder.ConvertPropertyValueTo <T>(propertyName, propertyValue));
}
}
}
}
internal static IEnumerable <KeyValuePair <KeyType, ValueType> > EnumerateHashtableProperty <KeyType, ValueType>(
PSObject psObject,
string propertyName)
{
using (RemotingDecoder._trace.TraceMethod())
{
if (psObject == null)
{
throw RemotingDecoder._trace.NewArgumentNullException(nameof(psObject));
}
Hashtable h = propertyName != null?RemotingDecoder.GetPropertyValue <Hashtable>(psObject, propertyName) : throw RemotingDecoder._trace.NewArgumentNullException(nameof(propertyName));
if (h != null)
{
foreach (DictionaryEntry dictionaryEntry in h)
{
KeyType key = RemotingDecoder.ConvertPropertyValueTo <KeyType>(propertyName, dictionaryEntry.Key);
ValueType value = RemotingDecoder.ConvertPropertyValueTo <ValueType>(propertyName, dictionaryEntry.Value);
yield return(new KeyValuePair <KeyType, ValueType>(key, value));
}
}
}
}
private static T ConvertPropertyValueTo <T>(string propertyName, object propertyValue)
{
using (RemotingDecoder._trace.TraceMethod())
{
if (propertyName == null)
{
throw RemotingDecoder._trace.NewArgumentNullException(nameof(propertyName));
}
if (typeof(T).IsEnum)
{
if (propertyValue is string)
{
try
{
return((T)Enum.Parse(typeof(T), (string)propertyValue, true));
}
catch (ArgumentException ex)
{
throw new PSRemotingDataStructureException(PSRemotingErrorId.CantCastPropertyToExpectedType, new object[3]
{
(object)propertyName,
(object)typeof(T).FullName,
(object)propertyValue.GetType().FullName
});
}
}
else
{
try
{
Type underlyingType = Enum.GetUnderlyingType(typeof(T));
return((T)LanguagePrimitives.ConvertTo(propertyValue, underlyingType, (IFormatProvider)CultureInfo.InvariantCulture));
}
catch (InvalidCastException ex)
{
throw new PSRemotingDataStructureException(PSRemotingErrorId.CantCastPropertyToExpectedType, new object[3]
{
(object)propertyName,
(object)typeof(T).FullName,
(object)propertyValue.GetType().FullName
});
}
}
}
else
{
if (typeof(T).Equals(typeof(PSObject)))
{
return(propertyValue == null ? default(T) : (T)PSObject.AsPSObject(propertyValue));
}
switch (propertyValue)
{
case null:
if (!typeof(T).IsValueType)
{
return(default(T));
}
if (typeof(T).IsGenericType && typeof(T).GetGenericTypeDefinition().Equals(typeof(Nullable <>)))
{
return(default(T));
}
throw new PSRemotingDataStructureException(PSRemotingErrorId.CantCastPropertyToExpectedType, new object[3]
{
(object)propertyName,
(object)typeof(T).FullName,
propertyValue != null ? (object)propertyValue.GetType().FullName : (object)"null"
});
case T obj:
return(obj);
case PSObject _:
PSObject psObject = (PSObject)propertyValue;
return(RemotingDecoder.ConvertPropertyValueTo <T>(propertyName, psObject.BaseObject));
case Hashtable _:
if (typeof(T).Equals(typeof(PSPrimitiveDictionary)))
{
try
{
return((T) new PSPrimitiveDictionary((Hashtable)propertyValue));
}
catch (ArgumentException ex)
{
throw new PSRemotingDataStructureException(PSRemotingErrorId.CantCastPropertyToExpectedType, new object[3]
{
(object)propertyName,
(object)typeof(T).FullName,
propertyValue != null ? (object)propertyValue.GetType().FullName : (object)"null"
});
}
}
else
{
break;
}
}
throw new PSRemotingDataStructureException(PSRemotingErrorId.CantCastPropertyToExpectedType, new object[3]
{
(object)propertyName,
(object)typeof(T).FullName,
(object)propertyValue.GetType().FullName
});
}
}
}
