mirror of
https://github.com/jellyfin/jellyfin.git
synced 2024-09-06 13:57:14 -04:00
129 lines
4.5 KiB
C#
129 lines
4.5 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Reflection;
|
|
|
|
namespace Emby.Server.Implementations.Services
|
|
{
|
|
/// <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)
|
|
{
|
|
if (propertyType == typeof(string))
|
|
return s => s;
|
|
|
|
return _GetParseFn(propertyType);
|
|
}
|
|
|
|
private readonly Func<Type, object> _CreateInstanceFn;
|
|
private readonly Func<Type, Func<string, object>> _GetParseFn;
|
|
|
|
public StringMapTypeDeserializer(Func<Type, object> createInstanceFn, Func<Type, Func<string, object>> getParseFn, Type type)
|
|
{
|
|
_CreateInstanceFn = createInstanceFn;
|
|
_GetParseFn = getParseFn;
|
|
this.type = type;
|
|
|
|
foreach (var propertyInfo in RestPath.GetSerializableProperties(type))
|
|
{
|
|
var propertySetFn = TypeAccessor.GetSetPropertyMethod(type, propertyInfo);
|
|
var propertyType = propertyInfo.PropertyType;
|
|
var propertyParseStringFn = GetParseFn(propertyType);
|
|
var propertySerializer = new PropertySerializerEntry(propertySetFn, propertyParseStringFn) { PropertyType = propertyType };
|
|
|
|
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 = _CreateInstanceFn(type);
|
|
|
|
foreach (var pair in keyValuePairs)
|
|
{
|
|
propertyName = pair.Key;
|
|
propertyTextValue = pair.Value;
|
|
|
|
if (string.IsNullOrEmpty(propertyTextValue))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
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().Length > 0) return null;
|
|
|
|
var setMethodInfo = propertyInfo.SetMethod;
|
|
return (instance, value) => setMethodInfo.Invoke(instance, new[] { value });
|
|
}
|
|
}
|
|
}
|