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| author | Luke Pulverenti <luke.pulverenti@gmail.com> | 2016-11-11 14:55:12 -0500 |
|---|---|---|
| committer | Luke Pulverenti <luke.pulverenti@gmail.com> | 2016-11-11 14:55:12 -0500 |
| commit | 406e6cb8132c1b8ade2872d44d7183267dd51ca8 (patch) | |
| tree | f9088ce1219351cee1976ba9fa57ed6341eeed9a /ServiceStack/StringMapTypeDeserializer.cs | |
| parent | f8b8de13b752c49360bbe10502cc067be89937ae (diff) | |
update portable projects
Diffstat (limited to 'ServiceStack/StringMapTypeDeserializer.cs')
| -rw-r--r-- | ServiceStack/StringMapTypeDeserializer.cs | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/ServiceStack/StringMapTypeDeserializer.cs b/ServiceStack/StringMapTypeDeserializer.cs new file mode 100644 index 000000000..762e8aaff --- /dev/null +++ b/ServiceStack/StringMapTypeDeserializer.cs @@ -0,0 +1,126 @@ +using System; +using System.Collections.Generic; +using System.Runtime.Serialization; +using System.Linq; +using System.Reflection; + +namespace ServiceStack.Serialization +{ + /// <summary> + /// Serializer cache of delegates required to create a type from a string map (e.g. for REST urls) + /// </summary> + public class StringMapTypeDeserializer + { + internal class PropertySerializerEntry + { + public PropertySerializerEntry(Action<object,object> propertySetFn, Func<string, object> propertyParseStringFn) + { + PropertySetFn = propertySetFn; + PropertyParseStringFn = propertyParseStringFn; + } + + public Action<object, object> PropertySetFn; + public Func<string,object> PropertyParseStringFn; + public Type PropertyType; + } + + private readonly Type type; + private readonly Dictionary<string, PropertySerializerEntry> propertySetterMap + = new Dictionary<string, PropertySerializerEntry>(StringComparer.OrdinalIgnoreCase); + + public Func<string, object> GetParseFn(Type propertyType) + { + //Don't JSV-decode string values for string properties + if (propertyType == typeof(string)) + return s => s; + + return ServiceStackHost.Instance.GetParseFn(propertyType); + } + + public StringMapTypeDeserializer(Type type) + { + this.type = type; + + foreach (var propertyInfo in type.GetSerializableProperties()) + { + var propertySetFn = TypeAccessor.GetSetPropertyMethod(type, propertyInfo); + var propertyType = propertyInfo.PropertyType; + var propertyParseStringFn = GetParseFn(propertyType); + var propertySerializer = new PropertySerializerEntry(propertySetFn, propertyParseStringFn) { PropertyType = propertyType }; + + var attr = propertyInfo.AllAttributes<DataMemberAttribute>().FirstOrDefault(); + if (attr != null && attr.Name != null) + { + propertySetterMap[attr.Name] = propertySerializer; + } + propertySetterMap[propertyInfo.Name] = propertySerializer; + } + } + + public object PopulateFromMap(object instance, IDictionary<string, string> keyValuePairs) + { + string propertyName = null; + string propertyTextValue = null; + PropertySerializerEntry propertySerializerEntry = null; + + if (instance == null) + instance = ServiceStackHost.Instance.CreateInstance(type); + + foreach (var pair in keyValuePairs.Where(x => !string.IsNullOrEmpty(x.Value))) + { + propertyName = pair.Key; + propertyTextValue = pair.Value; + + if (!propertySetterMap.TryGetValue(propertyName, out propertySerializerEntry)) + { + if (propertyName == "v") + { + continue; + } + + continue; + } + + if (propertySerializerEntry.PropertySetFn == null) + { + continue; + } + + if (propertySerializerEntry.PropertyType == typeof(bool)) + { + //InputExtensions.cs#530 MVC Checkbox helper emits extra hidden input field, generating 2 values, first is the real value + propertyTextValue = LeftPart(propertyTextValue, ','); + } + + var value = propertySerializerEntry.PropertyParseStringFn(propertyTextValue); + if (value == null) + { + continue; + } + propertySerializerEntry.PropertySetFn(instance, value); + } + + return instance; + } + + public static string LeftPart(string strVal, char needle) + { + if (strVal == null) return null; + var pos = strVal.IndexOf(needle); + return pos == -1 + ? strVal + : strVal.Substring(0, pos); + } + } + + internal class TypeAccessor + { + public static Action<object, object> GetSetPropertyMethod(Type type, PropertyInfo propertyInfo) + { + if (!propertyInfo.CanWrite || propertyInfo.GetIndexParameters().Any()) return null; + + var setMethodInfo = propertyInfo.SetMethod; + return (instance, value) => setMethodInfo.Invoke(instance, new[] { value }); + } + } +} |
