public virtual IXmlable FromXml(XmlElement xmlEle)
{
if (Object.ReferenceEquals(null, xmlEle))
{
return(null);
}
ConstructorInfo constructInfo = null;
bool isUnique = false;
if (!_xmlFormater.GetXmlTypeInfo(xmlEle.Name, out constructInfo, out isUnique))
{
System.Diagnostics.Debug.Assert(false, "could not find the Type of tag name " + xmlEle.Name);
return(null);
}
if (!Object.ReferenceEquals(null, constructInfo))
{
IXmlable objXmlable = null;
if (isUnique)
{
String strId = xmlEle.GetAttribute(_xmlIdAttr);
if (!String.IsNullOrEmpty(strId))
{
if (!_xmlIdToObj.TryGetValue(strId, out objXmlable))
{
objXmlable = constructInfo.Invoke(_emptyArgument) as IXmlable;
_objToXmlId.Add(objXmlable, strId);
_xmlIdToObj.Add(strId, objXmlable);
}
System.Diagnostics.Debug.Assert(null != objXmlable);
objXmlable.FromXml(xmlEle, this);
return(objXmlable);
}
}
if (null == objXmlable)
{
objXmlable = constructInfo.Invoke(_emptyArgument) as IXmlable;
}
objXmlable.FromXml(xmlEle, this);
return(objXmlable);
}
System.Diagnostics.Debug.Assert(false, "could not load " + xmlEle.Name);
return(null);
}
public void FromXml(string strXml)
{
if (String.IsNullOrEmpty(this.XmlRoot))
{
Debug.Assert(false, "FromXml(strXml) IsNullOrEmpty");
throw new ArgumentNullException();
}
this.Clear();
XElement element = XElement.Parse(strXml);
foreach (XElement e in element.Elements())
{
IXmlable obj = (IXmlable)Activator.CreateInstance <T>();
obj.FromXml(e.ToString());
this.Add((T)obj);
}
}
/// <summary>
/// 克隆对象，并返回一个已克隆对象的引用
/// 该方法使用 ToXml和 FromXml 方法来实现
/// </summary>
public virtual object Clone()
{
object newObject = Activator.CreateInstance(this.GetType());
Type xmlableThis = this.GetType().GetInterface("IXmlable", true);
Type xmlableNewObject = this.GetType().GetInterface("IXmlable", true);
if (xmlableThis == null || xmlableNewObject == null)
{
Debug.Assert(false, "调用对象的 Clone()方法,但是没有实现 IXmlable");
return(null);
}
IXmlable iXmlableThis = (IXmlable)this;
IXmlable iXmlableNewObject = (IXmlable)newObject;
iXmlableNewObject.FromXml(iXmlableThis.ToXml());
return(newObject);
}
public virtual XmlElement ToXml(IXmlable xmlable)
{
if (Object.ReferenceEquals(null, xmlable))
{
return(null);
}
String xmlName = null;
bool isUnique = false;
if (!_xmlFormater.GetTypeXmlInfo(xmlable.GetType(), out xmlName, out isUnique))
{
System.Diagnostics.Debug.Assert(false, "could not find the Xmlable information of " + xmlable.GetType().ToString());
return(null);
}
if (!String.IsNullOrEmpty(xmlName))
{
if (isUnique)
{
String strObjId = null;
if (_objToXmlId.TryGetValue(xmlable, out strObjId) && !String.IsNullOrEmpty(strObjId))
{
XmlElement ele = this.Document.CreateElement(xmlName);
XmlToolkit.SetAttribute(ele, _xmlIdAttr, strObjId);
return(ele);
}
}
XmlElement ele2 = this.Document.CreateElement(xmlName);
if (isUnique)
{
String xmlId = Guid.NewGuid().ToString();
_objToXmlId.Add(xmlable, xmlId);
_xmlIdToObj.Add(xmlId, xmlable);
XmlToolkit.SetAttribute(ele2, _xmlIdAttr, xmlId);
}
xmlable.ToXml(ele2, this);
return(ele2);
}
return(null);
}
public virtual void Serialize(XmlDocument doc, Object graph)
{
if (Object.ReferenceEquals(null, doc))
{
throw new ArgumentNullException("doc");
}
if (Object.ReferenceEquals(null, graph))
{
throw new ArgumentNullException("graph");
}
IXmlable objXmlable = graph as IXmlable;
if (Object.ReferenceEquals(null, objXmlable))
{
throw new ArgumentException("can't convert to IXmlable", "graph");
}
doc.RemoveAll();
XmlContext cnt = new XmlContext(this, doc);
XmlElement ele = cnt.ToXml(objXmlable);
doc.AppendChild(ele);
}
