Created
February 25, 2014 11:33
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Simple Object mapper for ParseObject objects
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| [AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)] | |
| public class ParseObjectMemberAttribute : Attribute | |
| { | |
| public string Key { get; private set; } | |
| public ParseObjectMemberAttribute() : this(null) | |
| { | |
| } | |
| public ParseObjectMemberAttribute(string key = null) | |
| { | |
| Key = key; | |
| } | |
| } | |
| public interface IParseMapper | |
| { | |
| ParseObject GetParseObject<T>(T o) where T : class, new(); | |
| T GetObjectFromParse<T>(ParseObject po) where T : class, new(); | |
| } | |
| public class ParseMapper : IParseMapper | |
| { | |
| private IEnumerable<KeyValuePair<string, object>> GetObjectPropertyMappingForParse(object obj) | |
| { | |
| if (object.ReferenceEquals(obj, null)) | |
| { | |
| throw new ArgumentNullException("obj"); | |
| } | |
| List<KeyValuePair<string, object>> result = new List<KeyValuePair<string, object>>(); | |
| Type type = obj.GetType(); | |
| foreach (PropertyInfo pi in type.GetRuntimeProperties()) | |
| { | |
| IEnumerable<Attribute> propertyAttributes = pi.GetCustomAttributes(); | |
| if (propertyAttributes.Any(a => a.GetType() == typeof(ParseObjectMemberAttribute))) | |
| { | |
| result.Add(new KeyValuePair<string, object>(pi.Name, pi.GetValue(obj))); | |
| } | |
| } | |
| return result; | |
| } | |
| public ParseObject GetParseObject<T>(T o) | |
| where T : class, new() | |
| { | |
| ParseObject po = new ParseObject(o.GetType().Name); | |
| var propertiesMappingList = this.GetObjectPropertyMappingForParse(o); | |
| foreach (var map in propertiesMappingList) | |
| { | |
| po.Add(map.Key, map.Value); | |
| } | |
| return po; | |
| } | |
| public T GetObjectFromParse<T>(ParseObject po) | |
| where T : class, new() | |
| { | |
| T result = Activator.CreateInstance<T>(); | |
| Type type = typeof(T); | |
| IEnumerable<PropertyInfo> properties = type.GetRuntimeProperties(); | |
| foreach (var pi in properties) | |
| { | |
| Attribute customAttribute = pi.GetCustomAttributes() | |
| .FirstOrDefault(a => a.GetType() == typeof(ParseObjectMemberAttribute)); | |
| ParseObjectMemberAttribute casted = customAttribute as ParseObjectMemberAttribute; | |
| if (casted == null) | |
| { | |
| continue; | |
| } | |
| string key = string.IsNullOrEmpty(casted.Key) ? pi.Name : casted.Key; | |
| pi.SetValue(result, po[key]); | |
| } | |
| return result; | |
| } | |
| } |
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