static DataAdapterReflector()
{
string targetPath = DataAdapterConfigReader.GetDefualtDataAdapterFilePath();
_defaultAssembly = LoadAssembly(targetPath);
_updater = new AdapterAutoUpdater();
}
/// <summary>
///
/// </summary>
public AdapterAutoUpdater()
{
_allAdapterFiles = DataAdapterConfigReader.GetAdapterFiles();
List <string> targetDir = GetTargetDir(_allAdapterFiles);
foreach (string dir in targetDir)
{
FileSystemWatcher watcher = new FileSystemWatcher(dir);
watcher.EnableRaisingEvents = true;
watcher.Changed += new FileSystemEventHandler(watcher_Changed);
}
}
/// <summary>
/// 创建指定类型接口的实现类对象.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public static T CreateInstance <T>()
{
Type interfaceType = typeof(T);
string interfaceName = interfaceType.FullName;
Type tg = null;
lock (_asycObj)
{
var typeInfo = _lstClassTypeInfo.FirstOrDefault(c => c.InterfaceName == interfaceName);
if (typeInfo != null)
{
tg = typeInfo.Type;
}
else
{
string targetFileName = DataAdapterConfigReader.GetAdapterFilePath(interfaceName);
Assembly asm = null;
if (targetFileName != null)
{
if (_dicInterfaceAssembly.ContainsKey(targetFileName))
{
asm = _dicInterfaceAssembly[targetFileName];
}
else
{
if (!File.Exists(targetFileName))
{
string message = string.Format("无法找到文件:{0}。", targetFileName);
_logger.Error(message);
throw new Exception(message);
}
asm = LoadAssembly(targetFileName);
_dicInterfaceAssembly[targetFileName] = asm;
}
}
else
{
asm = _defaultAssembly;
}
string specialAdapter = DataAdapterConfigReader.FindSpecialAdapterType(interfaceName);
tg = FindImplementType(asm, interfaceType, tg, specialAdapter);
_lstClassTypeInfo.Add(
new AdapterClassTypeInfo()
{
FilePath = targetFileName,
InterfaceName = interfaceName,
Type = tg
});
}
}
if (tg != null)
{
return((T)Activator.CreateInstance(tg));
}
else
{
string message = string.Format("无法找到接口:{0} 的适配器", interfaceName);
_logger.Error(message);
throw new Exception(message);
}
}