/// <summary>
/// Extracts all needed data of any variable from the given StaticExtension by using reflection and appends it to the given container.
/// </summary>
/// <param name="container">the container where the data is appended to.</param>
/// <param name="staticExtension">the StaticExtension that should be searched by using reflection.</param>
private void ExtractVariableData(IStaticExtensionContainer container, IStaticExtension staticExtension)
{
Type staticExtensionType = staticExtension.GetType();
// get all relevant properties that are marked by a StaticVariableAttribute
IEnumerable <PropertyInfo> listOfVariableProperties = staticExtensionType.GetProperties().Where(p => p.GetCustomAttribute <StaticVariableAttribute>() != null);
foreach (var variableProperty in listOfVariableProperties)
{
if (variableProperty.MemberType != MemberTypes.Property)
{
throw new LibraryPluginManagerException(this, String.Format(
"The member '{0}' in class '{1}' is not a property. Only properties are supported as static variables.",
variableProperty.Name, staticExtensionType.Name));
}
if (variableProperty.CanRead == false)
{
throw new LibraryPluginManagerException(this, String.Format(
"The property '{0}' in class '{1}' doesn't have a getter. Only readable properties are supported as static variables.",
variableProperty.Name, staticExtensionType.Name));
}
if (SUPPORTED_TYPES.Contains(variableProperty.PropertyType) == false)
{
throw new LibraryPluginManagerException(this, String.Format(
"The type '{2}' of property '{0}' in class '{1}' is not supported.",
variableProperty.Name, staticExtensionType.Name, variableProperty.PropertyType));
}
IStaticExtensionVariableData variableData = new StaticExtensionVariableData();
variableData.StaticExtension = staticExtension;
variableData.PropertyName = variableProperty.Name;
variableData.Type = variableProperty.PropertyType;
StaticVariableAttribute attribute = variableProperty.GetCustomAttribute <StaticVariableAttribute>();
// resolve the identifier that is used in synery
if (String.IsNullOrEmpty(attribute.AlternativeIdentifier))
{
// there is no alternative identifier -> take the original name of the property as variable identifier
variableData.SyneryIdentifier = variableProperty.Name;
}
else
{
// take the alternative name
variableData.SyneryIdentifier = attribute.AlternativeIdentifier;
}
// check whether the property has a public setter
if (variableProperty.SetMethod != null && variableProperty.SetMethod.IsPublic == true)
{
variableData.HasSetter = true;
}
else
{
variableData.HasSetter = false;
}
container.Variables.Add(variableData);
}
}
/// <summary>
/// Extracts all needed data of any function from the given StaticExtension by using reflection and appends it to the given container.
/// </summary>
/// <param name="container">the container where the data is appended to.</param>
/// <param name="staticExtension">the StaticExtension that should be searched by using reflection.</param>
/// <returns></returns>
private void ExtractFunctionData(IStaticExtensionContainer container, IStaticExtension staticExtension)
{
Type staticExtensionType = staticExtension.GetType();
// get all relevant methods that are marked by a StaticFunctionAttribute
IEnumerable <MethodInfo> listOfFunctionMethods = staticExtensionType.GetMethods().Where(m => m.GetCustomAttribute <StaticFunctionAttribute>() != null);
foreach (var functionMethod in listOfFunctionMethods)
{
StaticFunctionAttribute attribute = functionMethod.GetCustomAttribute <StaticFunctionAttribute>();
IStaticExtensionFunctionData functionData = new StaticExtensionFunctionData();
functionData.StaticExtension = staticExtension;
functionData.MethodName = functionMethod.Name;
// resolve the identifier of the function that is used in synery
if (String.IsNullOrEmpty(attribute.AlternativeIdentifier))
{
// there is no alternative identifier -> take the original name of the method as function identifier
functionData.SyneryIdentifier = functionMethod.Name;
}
else
{
// take the alternative identifier
functionData.SyneryIdentifier = attribute.AlternativeIdentifier;
}
// resolve the return type of the method
if (functionMethod.ReturnType == typeof(void))
{
// the function doesn't return anything
functionData.ReturnType = null;
}
else if (SUPPORTED_TYPES.Contains(functionMethod.ReturnType) == true)
{
functionData.ReturnType = functionMethod.ReturnType;
}
else
{
throw new LibraryPluginManagerException(this, String.Format(
"The return type '{0}' of method '{1}' in class '{2}' is not supported.",
functionMethod.ReturnType.Name, functionMethod.Name, staticExtensionType.Name));
}
// resolve the parameters
foreach (var parameter in functionMethod.GetParameters())
{
// validate the parameter
if (parameter.IsOut)
{
throw new LibraryPluginManagerException(this, String.Format(
"The parameter '{0}' of method '{1}' in class '{2}' is marked as out parameter. Out parameters are not supported.",
parameter.Name, functionMethod.Name, staticExtensionType.Name));
}
if (parameter.IsRetval)
{
throw new LibraryPluginManagerException(this, String.Format(
"The parameter '{0}' of method '{1}' in class '{2}' is marked as Retval parameter. Retval parameters are not supported.",
parameter.Name, functionMethod.Name, staticExtensionType.Name));
}
if (SUPPORTED_TYPES.Contains(parameter.ParameterType) == false)
{
throw new LibraryPluginManagerException(this, String.Format(
"The type '{3}' of parameter '{0}' of method '{1}' in class '{2}' is not supported.",
parameter.Name, functionMethod.Name, staticExtensionType.Name, parameter.ParameterType.Name));
}
// resolve neeeded parameter information
IStaticExtensionFunctionParameterData parameterData = new StaticExtensionFunctionParameterData();
parameterData.Name = parameter.Name;
parameterData.Type = parameter.ParameterType;
parameterData.IsOptional = parameter.IsOptional;
functionData.Parameters.Add(parameterData);
}
container.Functions.Add(functionData);
}
}
