插件模块与模块之间的通信

在这里做个代码备注 防止下次忘记。。。using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Forms;
using MessageBox = System.Windows.MessageBox;

namespace PLUGIN.SYSTEMFRAMEWORK.PLUGINS
{
    class PluginHelper
    {

        /// <summary>
        /// 模块之间 委托事件 通信
        /// </summary>
        /// <param name="parentWindow">父Window</param>
        /// <param name="reflectioneventName">要反射模块中的 委托事件名称</param>
        /// <param name="currentEventName">在当前类中要执行的事件名称</param>
        /// <param name="filePath">反射文件的路经</param>
        /// <param name="plugin">插件模块信息</param>
        /// <param name="eventParameter">[参数]通信的消息 List集合对象</param>
        public static void ModulEventCommunication(Window parentWindow, string reflectioneventName,
                                                    string currentEventName, string filePath, Plugin plugin,
                                                    object[] eventParameter)
        {
            if (reflectioneventName == null)
                throw new ArgumentNullException("reflectioneventName");
            if (currentEventName == null)
                throw new ArgumentNullException("currentEventName");
            if (filePath == null)
                throw new ArgumentNullException("filePath");
            if (eventParameter == null)
                throw new ArgumentNullException("eventParameter");
            try
            {
                Assembly assembly = Assembly.LoadFrom(filePath + plugin.NameSpace + "." + plugin.Exends);
                Type[] type = assembly.GetTypes();
                foreach (Type t in type)
                {
                    //主要是判断该窗口是否实现 IElementsView 如果没有实现 就不需要反射或者不是插件
                    if (t.GetInterface("IElementsPlugin") != null && t.Name == plugin.ClassName)
                    {
                        //注：在这里要判断是否已经加载：
                        if (AppData.LoadedPlugins.Contains(t.FullName))
                        {
                            return;
                        }
                        //反射执行的成员和类型搜索
                        const BindingFlags myBindingFlags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static;
                        EventInfo eventInfo = t.GetEvent(reflectioneventName, myBindingFlags);
                        //获取到当前的类
                        var obj = (IElementsPlugin)assembly.CreateInstance(t.FullName);
                        if (eventInfo != null)
                        {
                            Type tDelegate = eventInfo.EventHandlerType;
                            MethodInfo methodHandler = parentWindow.GetType().GetMethod(currentEventName, myBindingFlags);
                            //创建委托
                            Delegate d = Delegate.CreateDelegate(tDelegate, methodHandler);
                            //获取将要处理的事件委托
                            MethodInfo minAddHandler = eventInfo.GetAddMethod();
                            object[] addHandlerArgs =
                                {
                                    d
                                };
                            //调用
                            minAddHandler.Invoke(obj, addHandlerArgs);
                            FieldInfo field = t.GetField(reflectioneventName,
                                                        myBindingFlags);
                            if (field != null)
                            {
                                Object fieldValue = field.GetValue(obj);
                                if (fieldValue is Delegate)
                                {
                                    var objectDelegate = fieldValue as Delegate;
                                    //动态调用
                                    objectDelegate.DynamicInvoke(eventParameter);
                                }
                            }
                        }
                        if (obj != null)
                        {
                            obj.Show(AppData.CurrentMainWindow);
                            //添加已经打开的窗口 :在关闭的时候 要删除此项
                            AppData.LoadedPlugins.Add(t.FullName);
                        }
                    }

                }
            }
            catch (FileNotFoundException)
            {
                MessageBox.Show("尊敬的用户您好！没有找到相应的模块！", "插件提示！", MessageBoxButton.OK,
                                  MessageBoxImage.Information);
            }
            catch (TargetParameterCountException)
            {
                MessageBox.Show("尊敬的用户您好！在调用模块时发现委托的参数不同！请检查参数的个数！", "插件提示!", MessageBoxButton.OK,
                                MessageBoxImage.Information);
            }
            catch (Exception)
            {
                MessageBox.Show("尊敬的用户您好！系统发现版本与当前系统不匹配！", "插件提示！", MessageBoxButton.OK,
                                MessageBoxImage.Information);
            }
        }

        /// <summary>
        /// 模块之间通信  事件委托
        /// </summary>
        /// <typeparam name="T">对象实体</typeparam>
        /// <param name="parentWindow">父窗前</param>
        /// <param name="reflectioneventName">要反射模块中的 委托事件名称</param>
        /// <param name="currentEventName">在当前类中要执行的事件名称</param>
        /// <param name="filePath">反射文件的路经</param>
        /// <param name="plugin">插件模块信息</param>
        /// <param name="list">[参数]通信的消息</param>
        public static void ModuleEventCommunicationList<T>(Window parentWindow, string reflectioneventName,
                                                    string currentEventName,
                                                    string filePath, Plugin plugin, List<T> list)
        {
            if (reflectioneventName == null)
                throw new ArgumentNullException("reflectioneventName");
            if (currentEventName == null)
                throw new ArgumentNullException("currentEventName");
            if (filePath == null)
                throw new ArgumentNullException("filePath");
            if (!list.Any())
                return;
            try
            {
                Assembly assembly = Assembly.LoadFrom(filePath + plugin.NameSpace + "." + plugin.Exends);
                Type[] type = assembly.GetTypes();

                foreach (Type t in type)
                {
                    //主要是判断该窗口是否实现 IElementsView 如果没有实现 就不需要反射或者不是插件
                    if (t.GetInterface("IElementsPlugin") != null && t.Name == plugin.ClassName)
                    {
                        //注：在这里要判断是否已经加载：
                        if (AppData.LoadedPlugins.Contains(t.FullName))
                        {
                            return;
                        }
                        //反射执行的成员和类型搜索
                        const BindingFlags myBindingFlags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static;
                        EventInfo eventInfo = t.GetEvent(reflectioneventName, myBindingFlags);
                        //获取到当前的类
                        var obj = (IElementsPlugin)assembly.CreateInstance(t.FullName);
                        if (eventInfo != null)
                        {
                            Type tDelegate = eventInfo.EventHandlerType;
                            MethodInfo methodHandler = parentWindow.GetType().GetMethod(currentEventName, myBindingFlags);
                            //创建委托
                            Delegate d = Delegate.CreateDelegate(tDelegate, methodHandler);
                            //获取将要处理的事件委托
                            MethodInfo minAddHandler = eventInfo.GetAddMethod();
                            object[] addHandlerArgs =
                                {
                                    d
                                };
                            //调用
                            minAddHandler.Invoke(obj, addHandlerArgs);
                            FieldInfo field = t.GetField(reflectioneventName,
                                                        myBindingFlags);
                            if (field != null)
                            {
                                Object fieldValue = field.GetValue(obj);
                                if (fieldValue is Delegate)
                                {
                                    var objectDelegate = fieldValue as Delegate;
                                    //动态调用
                                    objectDelegate.DynamicInvoke(list);
                                }
                            }
                        }
                        if (obj != null)
                        {
                            obj.Show(AppData.CurrentMainWindow);
                            //添加已经打开的窗口 :在关闭的时候 要删除此项
                            AppData.LoadedPlugins.Add(t.FullName);
                        }
                    }

                }
            }
            catch (FileNotFoundException)
            {
                MessageBox.Show("尊敬的用户您好！没有找到相应的模块！", "插件提示！", MessageBoxButton.OK,
                                  MessageBoxImage.Information);
            }
            catch (TargetParameterCountException)
            {
                MessageBox.Show("尊敬的用户您好！在调用模块时发现委托的参数不同！请检查参数的个数！", "插件提示!", MessageBoxButton.OK,
                                MessageBoxImage.Information);
            }
            catch (Exception)
            {
                MessageBox.Show("尊敬的用户您好！系统发现版本与当前系统不匹配！", "插件提示！", MessageBoxButton.OK,
                                MessageBoxImage.Information);
            }

        }
        /// <summary>
        ///  模块之间通信  事件委托
        /// </summary>
        /// <typeparam name="T">对象实体</typeparam>
        /// <param name="pwindow">父窗前</param>
        /// <param name="reflectionEventName">要反射模块中的 委托事件名称</param>
        /// <param name="currentEventName">在当前类中要执行的事件名称</param>
        /// <param name="filepath">反射文件的路经</param>
        /// <param name="plugin">插件模块信息</param>
        /// <param name="objEntity">通信的消息【Entity实体】</param>
        public static void ModuleEventCommuncationObjcet<T>(Window pwindow, string reflectionEventName, string currentEventName, string filepath, Plugin plugin,
            T objEntity)
        {
            if (reflectionEventName == null)
                throw new ArgumentNullException("reflectionEventName");
            if (currentEventName == null)
                throw new ArgumentNullException("currentEventName");
            if (filepath == null)
                throw new ArgumentNullException("filepath");
            if (objEntity == null)
                throw new ArgumentNullException("objEntity");
            try
            {
                Assembly assembly = Assembly.LoadFrom(filepath + plugin.NameSpace + "." + plugin.Exends);
                Type[] type = assembly.GetTypes();

                foreach (Type t in type)
                {
                    //主要是判断该窗口是否实现 IElementsView 如果没有实现 就不需要反射或者不是插件
                    if (t.GetInterface("IElementsPlugin") != null && t.Name == plugin.ClassName)
                    {
                        //注：在这里要判断是否已经加载：
                        if (AppData.LoadedPlugins.Contains(t.FullName))
                        {
                            return;
                        }
                        //反射执行的成员和类型搜索
                        const BindingFlags myBindingFlags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static;
                        EventInfo eventInfo = t.GetEvent(reflectionEventName, myBindingFlags);
                        //获取到当前的类
                        var obj = (IElementsPlugin)assembly.CreateInstance(t.FullName);
                        if (eventInfo != null)
                        {
                            Type tDelegate = eventInfo.EventHandlerType;
                            MethodInfo methodHandler = pwindow.GetType().GetMethod(currentEventName, myBindingFlags);
                            //创建委托
                            Delegate d = Delegate.CreateDelegate(tDelegate, methodHandler);
                            //获取将要处理的事件委托
                            MethodInfo minAddHandler = eventInfo.GetAddMethod();
                            object[] addHandlerArgs =
                                {
                                    d
                                };
                            //调用
                            minAddHandler.Invoke(obj, addHandlerArgs);
                            FieldInfo field = t.GetField(reflectionEventName,
                                                        myBindingFlags);
                            if (field != null)
                            {
                                Object fieldValue = field.GetValue(obj);
                                if (fieldValue is Delegate)
                                {
                                    var objectDelegate = fieldValue as Delegate;
                                    //动态调用
                                    objectDelegate.DynamicInvoke(objEntity);
                                }
                            }
                        }
                        if (obj != null)
                        {
                            obj.Show(AppData.CurrentMainWindow);
                            //添加已经打开的窗口 :在关闭的时候 要删除此项
                            AppData.LoadedPlugins.Add(t.FullName);
                        }
                    }

                }
            }
            catch (FileNotFoundException)
            {
                MessageBox.Show("尊敬的用户您好！没有找到相应的模块！", "插件提示！", MessageBoxButton.OK,
                                  MessageBoxImage.Information);
            }
            catch (TargetParameterCountException)
            {
                MessageBox.Show("尊敬的用户您好！在调用模块时发现委托的参数不同！请检查参数的个数！", "插件提示!", MessageBoxButton.OK,
                                MessageBoxImage.Information);
            }
            catch (Exception)
            {
                MessageBox.Show("尊敬的用户您好！系统发现版本与当前系统不匹配！", "插件提示！", MessageBoxButton.OK,
                                MessageBoxImage.Information);
            }
        }

    }

}