private static PluginPackAttribute GetAttributeByType(Type type)
{
//int key = type.Assembly.GetHashCode();
//if (attrDicts == null)
//{
// attrDicts = new Dictionary<int, PluginPackAttribute>();
//}
//if (!attrDicts.Keys.Contains(key))
//{
object[] attrs = type.Assembly.GetCustomAttributes(typeof(PluginPackAttribute), false);
if (attrs.Length == 0)
{
throw new Exception("assembly not contain any plugin package attribute!");
}
PluginPackAttribute attr = (PluginPackAttribute)attrs[0];
//attrDicts.Add(key, attr);
return(attr);
//}
// return attrDicts[key];
}
/// <summary>
/// 获取插件
/// </summary>
/// <param name="workerIndent"></param>
/// <returns></returns>
public static IPlugin GetPlugin(string workerIndent, out PluginPackAttribute attr)
{
var plugins = BasePluginHost.plugins;
foreach (IPlugin p in plugins.Keys)
{
if (String.Compare(workerIndent, plugins[p].WorkIndent, StringComparison.OrdinalIgnoreCase) == 0)
{
attr = plugins[p];
return(p);
}
}
attr = null;
return(null);
}
/// <summary>
/// 注册扩展处理程序
/// </summary>
/// <param name="extendName">扩展名称，而且也是访问地址的名称。如扩展名称为:ext,那么可使用/ext.sh访问该扩展插件</param>
/// <param name="getReqHandler">委托PluginHandler<CmsContext,string>的实例</param>
/// <param name="postReqHandler">委托PluginHandler<CmsContext,string>的实例</param>
/// <returns></returns>
public bool Register(IPlugin plugin,
PluginHandler <T> reqHandler)
{
Type type = plugin.GetType();
PluginPackAttribute attr = PluginUtil.GetAttribute(plugin);
string indent = attr.WorkIndent;
if (reqHandler == null || reqHandlers.Keys.Contains(indent))
{
return(false);
}
if (reqHandler != null)
{
reqHandlers.Add(indent, reqHandler);
}
return(true);
}
/// <summary>
/// 从程序集中加载插件
/// </summary>
/// <param name="assembly"></param>
/// <returns></returns>
private static bool loadFromAssembly(Assembly assembly)
{
PluginPackAttribute attribute = null;
IPlugin plugin = null;
var attbs = assembly.GetCustomAttributes(typeof(PluginPackAttribute), false);
if (attbs.Length != 0)
{
attribute = (PluginPackAttribute)attbs[0];
}
else
{
// foreach (Attribute attr in assembly.GetCustomAttributes(false))
// {
// if (attr.ToString().IndexOf("PluginPackAttribute") != -1)
// {
// attribute = (PluginPackAttribute) attr;
//
// Log.Println(attribute.Name);
// }
// else
// {
// Log.Println(attr.ToString());
// }
// }
//
// Log.Println(assembly.GetName().Name+" not a plugin!");
return(false);
}
var types = assembly.GetTypes();
foreach (Type type in types)
{
if (type.IsClass)
{
foreach (Type t in type.GetInterfaces())
{
if (t == typeof(IPlugin))
{
plugin = Activator.CreateInstance(type) as IPlugin;
if (plugin == null)
{
continue;
}
if (attribute != null)
{
plugins.Add(plugin, attribute);
}
}
}
}
}
if (Log != null)
{
Log.Println(String.Format("{0}({1}) be found ; version is {2}.",
attribute.Name,
assembly.GetName().Name,
attribute.Version));
}
return(true);
}