/// <summary>
/// 序列化指定的对象至JSON字符串
/// </summary>
/// <param name="target">指定的对象</param>
/// <returns>JSON字符串</returns>
public static string SerializeObject(object target)
{
return(DynamicJsonHelper.CreateJsonString(
new XStreamingElement("root",
DynamicJsonHelper.CreateTypeAttr(DynamicJsonHelper.GetDynamicJsonType(target)),
DynamicJsonHelper.CreateJsonNode(target))));
}
/// <summary>
/// Convert JSON string to DynamicJson
/// </summary>
/// <param name="json">JSON字符串</param>
/// <returns>DynamicJson</returns>
public static dynamic Parse(string json)
{
using (var reader = JsonReaderWriterFactory.CreateJsonReader(Encoding.Unicode.GetBytes(json), XmlDictionaryReaderQuotas.Max))
{
return(DynamicJsonHelper.ConvertElementToValue(XElement.Load(reader)));
}
}
private dynamic DeserializeValue(XElement element, Type elementType)
{
var value = DynamicJsonHelper.ConvertElementToValue(element);
if (value is DynamicJson)
{
value = ((DynamicJson)value).Deserialize(elementType);
}
return(Convert.ChangeType(value, elementType));
}
/// <summary>
/// Returns a <see cref="System.String"/> that represents this instance.
/// </summary>
/// <returns>
/// A <see cref="System.String"/> that represents this instance.
/// </returns>
public override string ToString()
{
// Serialize to JsonString
// <foo type="null"></foo> is can't serialize. replace to <foo type="null" />
foreach (var elem in xml.Descendants().Where(x => x.Attribute("type").Value == "null"))
{
elem.RemoveNodes();
}
return(DynamicJsonHelper.CreateJsonString(new XStreamingElement("root", DynamicJsonHelper.CreateTypeAttr(jsonType), xml.Elements())));
}
private bool TryGet(XElement element, out object result)
{
if (element == null)
{
result = null;
return(false);
}
result = DynamicJsonHelper.ConvertElementToValue(element);
return(true);
}
/// <summary>
/// Provides implementation for type conversion operations. Classes derived from the <see cref="T:System.Dynamic.DynamicObject"/> class can override this method to specify dynamic behavior for operations that convert an object from one type to another.
/// </summary>
/// <param name="binder">Provides information about the conversion operation. The binder.Type property provides the type to which the object must be converted. For example, for the statement (String)sampleObject in C# (CType(sampleObject, Type) in Visual Basic), where sampleObject is an instance of the class derived from the <see cref="T:System.Dynamic.DynamicObject"/> class, binder.Type returns the <see cref="T:System.String"/> type. The binder.Explicit property provides information about the kind of conversion that occurs. It returns true for explicit conversion and false for implicit conversion.</param>
/// <param name="result">The result of the type conversion operation.</param>
/// <returns>
/// true if the operation is successful; otherwise, false. If this method returns false, the run-time binder of the language determines the behavior. (In most cases, a language-specific run-time exception is thrown.)
/// </returns>
public override bool TryConvert(ConvertBinder binder, out object result)
{
// Deserialize or foreach(IEnumerable)
if (binder.Type == typeof(IEnumerable) || binder.Type == typeof(object[]))
{
var ie = (IsArray)
? xml.Elements().Select(x => DynamicJsonHelper.ConvertElementToValue(x))
: xml.Elements().Select(x => (dynamic) new KeyValuePair <string, object>(x.Name.LocalName, DynamicJsonHelper.ConvertElementToValue(x)));
result = (binder.Type == typeof(object[])) ? ie.ToArray() : ie;
}
else
{
result = Deserialize(binder.Type);
}
return(true);
}
private bool TrySet(int index, object value)
{
var type = DynamicJsonHelper.GetDynamicJsonType(value);
var e = xml.Elements().ElementAtOrDefault(index);
if (e == null)
{
xml.Add(new XElement("item", DynamicJsonHelper.CreateTypeAttr(type), DynamicJsonHelper.CreateJsonNode(value)));
}
else
{
e.Attribute("type").Value = type.ToString();
e.ReplaceNodes(DynamicJsonHelper.CreateJsonNode(value));
}
return(true);
}
private bool TrySet(string name, object value)
{
var type = DynamicJsonHelper.GetDynamicJsonType(value);
var element = xml.Element(name);
if (element == null)
{
xml.Add(new XElement(name, DynamicJsonHelper.CreateTypeAttr(type), DynamicJsonHelper.CreateJsonNode(value)));
}
else
{
element.Attribute("type").Value = type.ToString();
element.ReplaceNodes(DynamicJsonHelper.CreateJsonNode(value));
}
return(true);
}
/// <summary>
/// Dynamic JSON
/// </summary>
public DynamicJson()
{
xml = new XElement("root", DynamicJsonHelper.CreateTypeAttr(DynamicJsonType.@object));
jsonType = DynamicJsonType.@object;
}