/// <summary>
/// 创建对象，如果存在，则直接返回；如果不存在，创建后返回
/// </summary>
/// <param name="letter"></param>
/// <returns></returns>
public static IViewAPI CreateInstance(Letter letter)
{
string assemblyName = "Song.ViewData";
string classFullName = String.Format("{0}.Methods.{1}", assemblyName, letter.ClassName);
IViewAPI obj = null;
//由缓存中查找，是否存在
ExecuteMethod curr = ExecuteMethod.GetInstance();
foreach (KeyValuePair <string, object> kv in curr._objects)
{
if (classFullName.Trim().Equals(kv.Key, StringComparison.CurrentCultureIgnoreCase))
{
obj = (IViewAPI)kv.Value;
break;
}
}
if (obj != null)
{
return(obj);
}
//如果之前未创建，则重新创建
Type type = null;
Assembly assembly = Assembly.Load(assemblyName);
Type[] types = assembly.GetExportedTypes()
.Where(t => t.GetInterfaces().Contains(typeof(IViewAPI)))
.ToArray();
foreach (Type info in types)
{
if (info.FullName.Equals(classFullName, StringComparison.CurrentCultureIgnoreCase))
{
type = info;
break;
}
}
if (type == null)
{
throw new Exception(
string.Format("调用的接口'{0}'不存在, 可能是'{1}'拼写错误",
letter.API_PATH, letter.ClassName));
}
obj = (IViewAPI)System.Activator.CreateInstance(type); //创建对象
//记录到缓存
if (!ExecuteMethod.GetInstance()._objects.ContainsKey(type.FullName))
{
ExecuteMethod.GetInstance()._objects.Add(type.FullName, obj);
}
return(obj);
}
/// <summary>
/// 创建对象，如果存在，则直接返回；如果不存在，创建后返回
/// </summary>
/// <param name="letter"></param>
/// <returns></returns>
public static object CreateInstance(Letter letter)
{
string assemblyName = "Song.ViewData";
string classFullName = String.Format("{0}.Methods.{1}", assemblyName, letter.ClassName);
object obj = null;
//由缓存中查找，是否存在
ExecuteMethod curr = ExecuteMethod.GetInstance();
foreach (KeyValuePair <string, object> kv in curr._objects)
{
if (classFullName.Trim().Equals(kv.Key, StringComparison.CurrentCultureIgnoreCase))
{
obj = kv.Value;
break;
}
}
if (obj != null)
{
return(obj);
}
//如果之前未创建，则重新创建
Type type = null;
Assembly assembly = Assembly.Load(assemblyName);
foreach (Type info in assembly.GetTypes())
{
if (info.FullName.Equals(classFullName, StringComparison.CurrentCultureIgnoreCase))
{
type = info;
break;
}
}
if (type == null)
{
throw new Exception(
string.Format("调用的对象'{0}'不存在, 可能是'{1}'拼写错误",
classFullName, letter.ClassName));
}
obj = System.Activator.CreateInstance(type); //创建对象
ExecuteMethod.GetInstance()._objects.Add(type.FullName, obj); //记录到缓存
return(obj);
}