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Live Photo Property Extensions
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using System.Text;
using Glass.Mapper;
using Sitecore.Collections;
using Sitecore.Diagnostics;
namespace Paragon.Foundation.LivePhoto.Extensions
{
public class PropertyExtensions
{
public static BindingFlags Flags = BindingFlags.Instance | BindingFlags.Public |
BindingFlags.NonPublic | BindingFlags.FlattenHierarchy;
public static PropertyInfo GetProperty(Type type, string name)
{
var propertyInfo = (PropertyInfo) null;
try
{
propertyInfo = type.GetProperty(name, Flags);
}
catch (AmbiguousMatchException ex)
{
Log.Error("Live Photo GetProperty AmbiguousMatchException", ex);
}
if (propertyInfo != null)
return propertyInfo;
foreach (var type1 in type.GetInterfaces())
{
try
{
propertyInfo = type1.GetProperty(name);
if (propertyInfo != null)
return propertyInfo;
}
catch (AmbiguousMatchException ex)
{
Log.Error("Live Photo GetProperty AmbiguousMatchException", ex);
}
}
return propertyInfo;
}
public static IEnumerable<PropertyInfo> GetAllProperties(Type type)
{
var typeList = new List<Type> {type};
if (type.IsInterface)
typeList.AddRange(type.GetInterfaces());
return (from t in typeList
from propertyInfo in t.GetProperties(Flags)
select GetProperty(propertyInfo.DeclaringType, propertyInfo.Name)).ToList();
}
public static NameValueCollection GetPropertiesCollection(object target, bool lowerCaseName = false,
bool underscoreForHyphens = true)
{
var nameValueCollection = new NameValueCollection();
if (target == null)
return nameValueCollection;
foreach (var propertyInfo in GetAllProperties(target.GetType()))
{
var obj = propertyInfo.GetValue(target, null);
if (obj == null)
continue;
var name = lowerCaseName ? propertyInfo.Name.ToLower() : propertyInfo.Name;
if (underscoreForHyphens)
name = name.Replace("_", "-");
nameValueCollection.Add(name, obj.ToString());
}
return nameValueCollection;
}
public static string ConvertAttributes(SafeDictionary<string> attributes, string quotationMark)
{
if (attributes == null || !attributes.Any())
return string.Empty;
var stringBuilder = new StringBuilder();
using (var enumerator = attributes.GetEnumerator())
{
while (enumerator.MoveNext())
{
var current = enumerator.Current;
stringBuilder.AppendFormat("{0}={2}{1}{2} ", current.Key, current.Value ?? string.Empty,
quotationMark);
}
}
return stringBuilder.ToString();
}
public static SafeDictionary<string> AddAttribute(SafeDictionary<string> collection, string name,
string value)
{
if (string.IsNullOrWhiteSpace(name) || string.IsNullOrWhiteSpace(value))
return collection;
if (collection.ContainsKey(name))
{
// Concate Value if key exists and value isn't empty, ie. class
var keyVal = collection.FirstOrDefault(k => k.Key.Equals(name));
if (string.IsNullOrWhiteSpace(keyVal.Value))
return collection;
collection.Remove(name);
// Exising Value could have multiple values ie. multiple css classes.
var valList = keyVal.Value.Split(new[] {" "}, StringSplitOptions.RemoveEmptyEntries).ToList();
if (!valList.Contains(value))
valList.Add(value);
value = string.Join(" ", valList);
collection.Add(name, string.Concat(keyVal.Value, value));
}
else if (!string.IsNullOrWhiteSpace(name))
collection.Add(name, value);
return collection;
}
public static object GetTargetObjectOfLamba<T>(Expression<Func<T, object>> field, T model,
out MemberExpression memberExpression)
{
if (field.Parameters.Any())
throw new MapperException($"To many parameters in linq expression {field.Body}");
var fieldBody = field.Body as UnaryExpression;
if (fieldBody != null)
memberExpression = fieldBody.Operand as MemberExpression;
else
{
if (!(field.Body is MemberExpression))
throw new MapperException($"Expression doesn't evaluate to a member {field.Body}");
memberExpression = (MemberExpression) field.Body;
}
return
Expression.Lambda(memberExpression.Expression, field.Parameters).Compile().DynamicInvoke(model);
}
}
}
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