public static string[] GetParameters(object instance, IEnumerable <PropertyInfo> properties, IHashCodeBuilderFactory builderFactory)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
var parameterValues = new List <string>();
foreach (PropertyInfo property in properties)
{
object propValue = property.GetValue(instance, null);
if (propValue == null)
{
continue;
}
Type propertyType = property.PropertyType;
if (propValue is System.Collections.ICollection)
{
parameterValues.AddRange(GetParametersFromCollection(propValue as System.Collections.ICollection, builderFactory));
continue;
}
if (Helpers.IsPrimitiveType(propertyType))
{
parameterValues.Add(propValue.ToString());
}
else
{
var hashCodeBuilder = builderFactory.CreateInstance(propertyType) as ReflectionHashCodeBuilder;
var propValueProperties = hashCodeBuilder != null ?
hashCodeBuilder.TargetProperties : HashCodeParameterAttribute.GetDemarcatedProperties(propertyType);
parameterValues.AddRange(GetParameters(propValue, propValueProperties, builderFactory));
}
}
return(parameterValues
.Where(val => !string.IsNullOrEmpty(val))
.ToArray());
}
private static IEnumerable <string> GetParametersFromCollection(System.Collections.ICollection collection, IHashCodeBuilderFactory builderFactory)
{
var values = new List <string>();
if (collection == null)
{
return(values);
}
foreach (object element in collection)
{
if (element == null)
{
continue;
}
if (element is System.Collections.ICollection)
{
values.AddRange(GetParametersFromCollection(element as System.Collections.ICollection, builderFactory));
continue;
}
Type instanceType = element.GetType();
var builder = builderFactory.CreateInstance(element.GetType()) as ReflectionHashCodeBuilder;
if (builder != null)
{
values.AddRange(GetParameters(element, builder.TargetProperties, builderFactory));
}
}
return(values);
}
public ReflectionHashCodeBuilder(IEnumerable <PropertyInfo> targetProperties, IHashCodeBuilderFactory builderFactory)
{
TargetProperties = targetProperties;
_builderFactory = builderFactory;
}
