private void ProcessValidationAttribute(AttributeEntityClassPair pair)
{
// check if the attribute specifies a method for retrieving additional rules
var a = (ValidationAttribute)pair.Attribute;
if (string.IsNullOrEmpty(a.HighLevelRulesProviderMethod))
{
return;
}
// find method on class (use the class that declared the attribute, not the entityClass)
const BindingFlags bindingFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.DeclaredOnly;
var method = pair.DeclaringClass.GetMethod(a.HighLevelRulesProviderMethod, bindingFlags);
// validate method signature
if (method == null)
{
throw new InvalidOperationException(string.Format("Method {0} not found on class {1}", a.HighLevelRulesProviderMethod, pair.DeclaringClass.FullName));
}
if (method.GetParameters().Length != 0 || !typeof(IValidationRuleSet).IsAssignableFrom(method.ReturnType))
{
throw new InvalidOperationException(string.Format("Method {0} must have 0 parameters and return IValidationRuleSet", a.HighLevelRulesProviderMethod));
}
var ruleSet = (IValidationRuleSet)method.Invoke(null, null);
_highLevelRules.Add(ruleSet);
}
private void ProcessEntityAttribute(AttributeEntityClassPair pair)
{
// TODO: this could be changed to a dictionary of delegates, or a visitor pattern of some kind
if (pair.Attribute is UniqueKeyAttribute)
{
ProcessUniqueKeyAttribute(pair);
}
if (pair.Attribute is ValidationAttribute)
{
ProcessValidationAttribute(pair);
}
}
private void ProcessUniqueKeyAttribute(AttributeEntityClassPair pair)
{
var uka = (UniqueKeyAttribute)pair.Attribute;
_lowLevelRules.Add(new UniqueKeySpecification(pair.DeclaringClass, uka.LogicalName, uka.MemberProperties));
}
private void ProcessEntityAttribute(AttributeEntityClassPair pair)
{
// TODO: this could be changed to a dictionary of delegates, or a visitor pattern of some kind
if (pair.Attribute is UniqueKeyAttribute)
ProcessUniqueKeyAttribute(pair);
if (pair.Attribute is ValidationAttribute)
ProcessValidationAttribute(pair);
}
private void ProcessUniqueKeyAttribute(AttributeEntityClassPair pair)
{
var uka = (UniqueKeyAttribute)pair.Attribute;
_lowLevelRules.Add(new UniqueKeySpecification(pair.DeclaringClass, uka.LogicalName, uka.MemberProperties));
}
private void ProcessValidationAttribute(AttributeEntityClassPair pair)
{
// check if the attribute specifies a method for retrieving additional rules
var a = (ValidationAttribute)pair.Attribute;
if (string.IsNullOrEmpty(a.HighLevelRulesProviderMethod))
return;
// find method on class (use the class that declared the attribute, not the entityClass)
const BindingFlags bindingFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.DeclaredOnly;
var method = pair.DeclaringClass.GetMethod(a.HighLevelRulesProviderMethod, bindingFlags);
// validate method signature
if (method == null)
throw new InvalidOperationException(string.Format("Method {0} not found on class {1}", a.HighLevelRulesProviderMethod, pair.DeclaringClass.FullName));
if (method.GetParameters().Length != 0 || !typeof(IValidationRuleSet).IsAssignableFrom(method.ReturnType))
throw new InvalidOperationException(string.Format("Method {0} must have 0 parameters and return IValidationRuleSet", a.HighLevelRulesProviderMethod));
var ruleSet = (IValidationRuleSet)method.Invoke(null, null);
_highLevelRules.Add(ruleSet);
}
