public static GenericCollection GetList(Type type)
{
GenericCollection list;
if (_Cache.TryGetValue(type, out list))
{
return(list);
}
if (type.GetInterface("System.Collections.IList") != typeof(IList))
{
return(null);
}
lock (_Cache)
{
if (_Cache.TryGetValue(type, out list))
{
return(list);
}
list = new GenericCollection();
list.Init = Literacy.CreateNewObject(type);
if (type.IsGenericType)
{
list.ElementType = type.GetGenericArguments()[0];
list.ElementType = Nullable.GetUnderlyingType(list.ElementType) ?? list.ElementType;
}
else
{
list.ElementType = typeof(object);
}
_Cache.Add(type, list);
return(list);
}
}
/// <summary> 读取对象
/// </summary>
/// <param name="reader"></param>
/// <param name="type"></param>
/// <returns></returns>
private object ReadObject(UnsafeJsonReader reader, Type type)
{
object obj;
if (type == typeof(object))
{
obj = new Dictionary <string, object>();
FillDictionary((IDictionary)obj, typeof(string), typeof(object), reader);
return(obj);
}
if (typeof(IDictionary).IsAssignableFrom(type))
{
var st = GenericCollection.GetDict(type);
if (st.Init == null)
{
ThrowNoConstructor(type);
}
obj = st.Init();
FillDictionary((IDictionary)obj, st.KeyType, st.ElementType, reader);
return(obj);
}
var lit = Literacy.Cache(type, true);
obj = lit.NewObject();
FillObject(obj, lit, reader);
return(obj);
}
private void FillObject(object obj, Literacy lit, UnsafeJsonReader reader)
{
if (reader.Current == '}')
{
return;
}
if (obj is IDictionary)
{
var st = GenericCollection.GetDict(obj.GetType());
FillDictionary((IDictionary)obj, st.KeyType, st.ElementType, reader);
}
else
{
while (true)
{
var key = ReadKey(reader); //获取Key
var prop = lit.Property[key]; //得到对象属性
if (prop == null || prop.CanWrite == false) //如果属性不存在或不可写
{
SkipValue(reader); //跳过Json中的值
}
else
{
object val = ReadValue(reader, prop.MemberType); //得到值
prop.SetValue(obj, val); //赋值
}
if (reader.SkipChar(',') == false)
{
return;
}
}
}
}
/// <summary> 将json字符串转换为指定对象
/// </summary>
public Object ToObject(Type type, string json)
{
if (json == null)
{
return(null);
}
if (type == null)
{
object obj = null;
FillObject(ref obj, null, json);
return(obj);
}
if (type.IsArray)
{
object arr = new ArrayList();
var eleType = type.GetElementType();
FillObject(ref arr, Literacy.Cache(eleType, true), json);
return(((ArrayList)arr).ToArray(eleType));
}
else
{
var lit = Literacy.Cache(type, true);
var obj = lit.NewObject();
FillObject(ref obj, lit, json);
return(obj);
}
}
/// <summary> 加载Setter
/// </summary>
public void LoadSetter()
{
if (Setter != PreSetter)
{
return;
}
lock (this)
{
if (Setter == PreSetter) //Setter未编译
{
if (!CanWrite) //当前成员可读
{
Setter = ErrorSetter;
}
else if (Field)
{
Setter = Literacy.CreateSetter((FieldInfo)MemberInfo);
}
else
{
Setter = Literacy.CreateSetter((PropertyInfo)MemberInfo);
}
}
}
}
/// <summary> 加载Getter
/// </summary>
public void LoadGetter()
{
if (Getter != PreGetter)
{
return;
}
lock (this)
{
if (Getter == PreGetter) //Getter未编译
{
if (!CanRead) //当前对象不可读
{
Getter = ErrorGetter;
}
else if (Field)
{
Getter = Literacy.CreateGetter((FieldInfo)MemberInfo);
}
else
{
Getter = Literacy.CreateGetter((PropertyInfo)MemberInfo);
}
}
}
}
/// <summary> 获取缓存
/// </summary>
/// <param name="type">反射对象类型</param>
/// <param name="ignoreCase">属性/字段名称是否忽略大小写</param>
/// <exception cref="ArgumentException">缓存中的对象类型与参数type不一致</exception>
/// <exception cref="ArgumentNullException">参数type为null</exception>
public static Literacy Cache(Type type, bool ignoreCase)
{
if (type == null)
{
throw new ArgumentNullException("type");
}
Literacy lit;
Dictionary <Type, Literacy> item = ignoreCase ? IgnoreCaseItems : Items;
if (item.TryGetValue(type, out lit))
{
if (lit.Type != type)
{
throw new ArgumentException("缓存中的对象类型与参数type不一致!");
}
}
else
{
lock (item)
{
if (item.TryGetValue(type, out lit) == false)
{
lit = new Literacy(type, ignoreCase);
item.Add(type, lit);
}
}
}
return(lit);
}
/// <summary> 将json字符串中的数据填充到指定对象
/// </summary>
public void FillObject(object obj, string json)
{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (json != null)
{
FillObject(ref obj, Literacy.Cache(obj.GetType(), true), json);
}
}
public static GenericCollection GetDict(Type type)
{
GenericCollection dict;
if (_Cache.TryGetValue(type, out dict))
{
return(dict);
}
lock (_Cache)
{
if (_Cache.TryGetValue(type, out dict))
{
return(dict);
}
dict = new GenericCollection();
dict.Init = Literacy.CreateNewObject(type);
if (type.IsGenericType)
{
var ga = type.GetGenericArguments();
if (ga.Length > 1)
{
dict.KeyType = type.GetGenericArguments()[0];
dict.ElementType = type.GetGenericArguments()[1];
dict.ElementType = Nullable.GetUnderlyingType(dict.ElementType) ?? dict.ElementType;
}
else
{
dict.ElementType = typeof(object);
}
}
else
{
dict.ElementType = typeof(object);
}
_Cache.Add(type, dict);
return(dict);
}
}
/// <summary> 将未知对象按属性名和值转换为Json中的键值字符串写入Buffer
/// </summary>
/// <param name="obj">非null的位置对象</param>
protected override void AppendOther(object obj)
{
Type type = obj.GetType();
Literacy lit = Literacy.Cache(type, true);
UnsafeAppend('{');
var ee = lit.Property.GetEnumerator();
var fix = "";
while (ee.MoveNext())
{
var p = ee.Current;
var value = p.GetValue(obj);
if (value != null)
{
UnsafeAppend(fix);
AppendKey(p.Name, false);
AppendObject(value);
fix = ",";
}
}
UnsafeAppend('}');
}
private void FillObject(ref object obj, Literacy lit, string json)
{
if (json == null || json.Length == 0)
{
return;
}
unsafe
{
fixed(char *p = json)
{
UnsafeJsonReader reader = new UnsafeJsonReader(p, json.Length);
if (reader.IsEnd())
{
return;
}
if (reader.Current == '{')
{
reader.MoveNext();
if (obj == null)
{
obj = new Dictionary <string, object>();
lit = Literacy.Cache(typeof(Dictionary <string, object>), true);
}
FillObject(obj, lit, reader);
if (reader.Current != '}')
{
ThrowMissingCharException('}');
}
}
else if (reader.Current == '[')
{
reader.MoveNext();
if (obj == null)
{
obj = new ArrayList();
FillList((IList)obj, typeof(object), reader);
}
else if (obj is ArrayList)
{
FillList((IList)obj, lit.Type, reader);
}
else
{
var st = GenericCollection.GetList(lit.Type);
if (st == null)
{
ThrowNoIList(lit.Type);
}
FillList((IList)obj, st.ElementType, reader);
}
if (reader.Current != ']')
{
ThrowMissingCharException(']');
}
}
else
{
ThrowException("起始字符:" + reader.Current);
}
reader.MoveNext();
if (reader.IsEnd())
{
reader.Dispose();
}
else
{
ThrowException("错误的结束字符:" + reader.Current);
}
}
}
}
