/// <summary>
/// 获得插件对象
/// </summary>
/// <param name="pluginCol">当前插件集合</param>
/// <param name="_type">插件类型</param>
private static void getPluginObject(PluginCollection pluginCol, Type _type)
{
IPlugin plugin = null;
try
{
//object aa = Activator.CreateInstance(_type);
//创建一个插件对象实例
plugin = Activator.CreateInstance(_type) as IPlugin;
}
catch
{
if (AppLog.log.IsErrorEnabled)
{
AppLog.log.Error(_type.FullName + "反射生成对象时发生异常");
}
}
finally
{
if (plugin != null)
{
//判断该插件是否已经存在插件集合中了,如果不是则加入该对象
if (!pluginCol.Contains(plugin))
{
pluginCol.Add(plugin);
}
}
}
}
/// <summary>
/// 添加插件集合到当前的集合
/// </summary>
/// <param name="value"></param>
private void AddRange(PluginCollection value)
{
for (int i = 0; i < value.Capacity; i++)
{
this.Add((IPlugin)value.List[i]);
}
}
/// <summary>
/// 解析插件集合中所有的对象
/// 将其分别装入ICommand,ITool,IToolBarDef,IMenuDefI和DockableWindowDef 5个集合
/// </summary>
/// <param name="pluginCol">插件集合</param>
public void GetPluginArray(PluginCollection pluginCol)
{
//遍历插件集合
foreach (IPlugin plugin in pluginCol)
{
//获得Command接口并添加到Command集合中
MyPluginEngine.ICommand cmd = plugin as MyPluginEngine.ICommand;
if (cmd != null)
{
this._Commands.Add(cmd.ToString(), cmd);
//找出该Command的Category,如果它还没有添加到Category则添加
if (cmd.Category != null && _CommandCategory.Contains(cmd.Category) == false)
{
_CommandCategory.Add(cmd.Category);
}
continue;
}
//获得ITool接口并添加到ITool集合中
MyPluginEngine.ITool tool = plugin as MyPluginEngine.ITool;
if (tool != null)
{
this._Tools.Add(tool.ToString(), tool);
if (tool.Category != null && _CommandCategory.Contains(tool.Category) == false)
{
_CommandCategory.Add(tool.Category);
}
continue;
}
//获得IToolBarDef接口并添加到IToolBarDef集合中
MyPluginEngine.IToolBarDef toolbardef = plugin as MyPluginEngine.IToolBarDef;
if (toolbardef != null)
{
this._ToolBars.Add(toolbardef.ToString(), toolbardef);
continue;
}
//获得IMenuDef接口并添加到IMenuDef集合中
MyPluginEngine.IMenuDef menudef = plugin as MyPluginEngine.IMenuDef;
if (menudef != null)
{
this._Menus.Add(menudef.ToString(), menudef);
continue;
}
//获得IDockableWindowDef接口并添加到IDockableWindowDef集合中
MyPluginEngine.IDockableWindowDef dockablewindowdef = plugin as MyPluginEngine.IDockableWindowDef;
if (dockablewindowdef != null)
{
this._DockableWindows.Add(dockablewindowdef.ToString(), dockablewindowdef);
continue;
}
}
}
/// <summary>
/// 插件容器迭代器构造函数
/// </summary>
/// <param name="mappings">插件集合</param>
public PluginCollectionEnumerator(PluginCollection mappings)
{
_temp = (IEnumerable)mappings;
_enumerator = _temp.GetEnumerator();
}
/// <summary>
/// 从DLL中获得插件对象并加入到插件容器
/// </summary>
/// <returns></returns>
public static PluginCollection GetPluginsFromDll()
{
//存储插件的容器
PluginCollection _PluginCol = new PluginCollection();
//判断是否存在该文件夹,如果不存在则自动创建一个,避免异常
if (!Directory.Exists(pluginFolder))
{
Directory.CreateDirectory(pluginFolder);
if (AppLog.log.IsDebugEnabled)
{
AppLog.log.Debug("plugin文件夹不存在,系统自带创建一个!");
}
}
//获得插件文件夹中的每一个dll文件
string[] _files = Directory.GetFiles(pluginFolder, "*.dll");
foreach (string _file in _files)
{
//根据程序集文件名加载程序集
Assembly _assembly = Assembly.LoadFrom(_file);
if (_assembly != null)
{
Type[] _types = null;
try
{
//获得程序集中定义的类型
_types = _assembly.GetTypes();
}
catch
{
if (AppLog.log.IsErrorEnabled)
{
AppLog.log.Error("反射类型加载异常!");
}
}
finally
{
foreach (Type _type in _types)
{
//获得一个类型所有实现的接口
Type[] _interfaces = _type.GetInterfaces();
//遍历接口类型
foreach (Type theInterface in _interfaces)
{
//如果满足某种类型,则添加到插件集合对象中
switch (theInterface.FullName)
{
//MyPluginEngine.
case "MyPluginEngine.ICommand":
case "MyPluginEngine.ITool":
case "MyPluginEngine.IMenuDef":
case "MyPluginEngine.IToolBarDef":
case "MyPluginEngine.IDockableWindowDef":
getPluginObject(_PluginCol, _type);
break;
default:
break;
}
}
}
}
}
}
return(_PluginCol);
}
public PluginCollection(PluginCollection value)
{
this.AddRange(value);
}