protected virtual object CreateValue()
{
if (this.Type == null)
{
return(null);
}
try
{
object result = PluginUtility.BuildType(this.Type, (Type parameterType, string parameterName, out object parameterValue) =>
{
return(PluginUtility.ObtainParameter(this.Plugin, parameterType, parameterName, out parameterValue));
});
if (result == null)
{
throw new PluginException(string.Format("Can not build instance of '{0}' type, Maybe that's cause type-generator not found matched constructor with parameters. in '{1}' plugin.", this.Type.FullName, this.Plugin));
}
return(result);
}
catch (Exception ex)
{
throw new PluginException(string.Format("Occurred an exception on create a fixed-element instance of '{0}' type, at '{1}' plugin.", this.Type.FullName, this.Plugin), ex);
}
}
internal Builtin CreateBuiltin(string builderName, string name)
{
if (string.IsNullOrWhiteSpace(name))
{
name = "$" + builderName + "-" + PluginUtility.GetAnonymousId(builderName).ToString();
}
return(new Builtin(builderName, name, this));
}
internal static object BuildType(string typeName, Builtin builtin)
{
Type type = PluginUtility.GetType(typeName);
if (type == null)
{
throw new PluginException(string.Format("Can not get type from '{0}' text for '{1}' builtin.", typeName, builtin));
}
return(BuildType(type, builtin));
}
public object GetValue(Type valueType, object defaultValue)
{
if (_valueNode == null)
{
return(PluginUtility.ResolveValue(_owner, _rawValue, _name, valueType, defaultValue));
}
var result = _valueNode.UnwrapValue(ObtainMode.Auto, _owner);
if (valueType != null)
{
result = Zongsoft.Common.Convert.ConvertValue(result, valueType, defaultValue);
}
return(result);
}
public static object BuildBuiltin(Builtin builtin, IEnumerable <string> ignoredProperties = null)
{
if (builtin == null)
{
throw new ArgumentNullException("builtin");
}
var result = PluginUtility.BuildType(builtin);
//设置更新目标对象的属性集
if (result != null)
{
UpdateProperties(result, builtin, ignoredProperties);
}
return(result);
}
public object GetValue(Type valueType)
{
var original = System.Threading.Interlocked.CompareExchange(ref _evaluateValueRequired, 1, 0);
if (original == 0)
{
if (valueType != null && string.IsNullOrEmpty(_parameterTypeName))
{
_value = PluginUtility.ResolveValue(_constructor.Builtin, _rawValue, null, valueType, null);
}
else
{
_value = PluginUtility.ResolveValue(_constructor.Builtin, _rawValue, null, this.ParameterType, null);
}
}
return(_value);
}
