/// <summary>
/// 从指定目录添加目录中的插件到m_Pluginlist中
/// 实现Plugins.AddFromDir接口
/// </summary>
/// <param name="path">目录路径</param>
/// <returns></returns>
public bool AddFromDir(string path)
{
if (m_Locked)
{
return(false);
}
int count = 0;
ArrayList ar = PluginManagementTools.FindPluginDLLs(path);
foreach (string s in ar)
{
if (AddFromFile(s))
{
count++;
}
}
if (count > 0 && count <= ar.Count)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 从默认目录(Plugins)将插件添加到m_Pluginlist中
/// </summary>
/// <returns></returns>
internal bool LoadPlugins()
{
if (m_Locked)
{
return(false);
}
int count = 0;
PluginFolder = App.Path + "\\Plugins"; //bin目录下的Plugins文件夹
ArrayList PotentialPlugins = PluginManagementTools.FindPluginDLLs(PluginFolder); //包含完整路径的文件名
for (int i = 0; i < PotentialPlugins.Count; i++)
{
PluginInfo info = new PluginInfo();
try
{
if (PotentialPlugins.IndexOf("RemoveMe-Script") > 0) //删除用RemoveMe-Script标识的插件
{
System.IO.File.Delete(PotentialPlugins[i].ToString());
}
else if (info.Init(PotentialPlugins[i].ToString(), typeof(MapWinGIS.Interfaces.IPlugin).GUID)) //存在
{
if (m_PluginList.ContainsKey(info.Key) == false)
{
m_PluginList.Add(info.Key, info);
count++;
}
else
{
//插件重复
string dupfile = m_PluginList[info.Key].FileName;
if (!(dupfile.ToLower() == PotentialPlugins[i].ToString().ToLower()))
{
MapWinGIS.Utility.Logger.Msg("警告: 检测到插件重复."
+ "\r\n" + "\r\n" + "加载的插件是: " + dupfile + "\r\n"
+ "重复的插件被忽略: "
+ PotentialPlugins[i].ToString(), "插件重复", System.Windows.Forms.MessageBoxIcon.Exclamation);
}
}
}
}
catch (Exception ex)
{
MapWinGIS.Utility.Logger.Dbg(ex.ToString());
}
}
//确保有插件记录添加到m_PluginList中
if (count > 0 && count <= PotentialPlugins.Count)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 是否存在指定键的插件。若存在于m_Pluginlist中，则添加到m_LoadPlugins中
/// 实现Plugins.StartPlugin接口
/// </summary>
/// <param name="key">插件的Key</param>
/// <returns></returns>
public bool StartPlugin(string key)
{
if (m_Locked)
{
return(false);
}
MapWinGIS.Interfaces.IPlugin plugin;
PluginInfo info;
if (m_LoadedPlugins.ContainsKey(key))//在m_LoadedPlugins中搜索,有 - 已经加载不再加载
{
return(true);
}
if (m_PluginList.ContainsKey(key)) //在m_PluginList中搜索，有 - 创建实例，添加到m_LoadedPlugins中
{
try
{
info = m_PluginList[key];
plugin = (IPlugin)(PluginManagementTools.CreatePluginObject(info.FileName, info.CreateString));
if (plugin == null)
{
return(false);
}
m_LoadedPlugins.Add(info.Key, plugin);
plugin.Initialize(Program.frmMain, Program.frmMain.Handle.ToInt32());//调用插件中的方法进行初始化
Program.frmMain.SynchPluginMenu();
return(true);
}
catch (Exception ex)
{
Program.g_error = "插件出现错误: " + ex.ToString();
Program.ShowError(ex);
return(false);
}
}
else
{
return(false);
}
}
/// <summary>
/// 从ApplicationPlugins文件夹中加载内部插件
/// </summary>
/// <param name="applicationPluginPath"></param>
internal void LoadApplicationPlugins(string applicationPluginPath)
{
if (applicationPluginPath == "" || !System.IO.Directory.Exists(applicationPluginPath))
{
return;
}
ArrayList arr = new ArrayList();
try
{
ArrayList potentialPlugins = PluginManagementTools.FindPluginDLLs(applicationPluginPath);
PluginInfo info;
IPlugin plugin;
foreach (string pluginName in potentialPlugins)
{
info = new PluginInfo();
if (info.Init(pluginName, typeof(IPlugin).GUID))
{
if (info.Key != null && !m_ApplicationPlugins.ContainsKey(info.Key))
{
plugin = (IPlugin)PluginManagementTools.CreatePluginObject(pluginName, info.CreateString);
if (plugin != null)
{
m_ApplicationPlugins.Add(info.Key, plugin);
plugin.Initialize(Program.frmMain, Program.frmMain.Handle.ToInt32());
}
}
}
}
}
catch (Exception e)
{
MapWinGIS.Utility.Logger.Dbg(e.ToString());
}
}
/// <summary>
/// 初始化.Net插件程序集，获取程序集的基本信息
/// </summary>
/// <param name="assemblyInfo">当前程序集中的某个coclass类型（这里是获取的接口类型）信息</param>
/// <param name="pathToFile">程序集的路径（包含文件名）</param>
/// <returns></returns>
private bool InitAssembly(System.Type assemblyInfo, string pathToFile)
{
System.Reflection.Assembly asm;
try
{
m_CoClassGUID = ("{" + assemblyInfo.GUID.ToString() + "}").ToUpper(); //获取插件的GUID
m_CoClassName = assemblyInfo.Name; //类型名，实现IPlugin接口的接口名
m_Filename = pathToFile; //插件完整路径
m_CreateString = PluginManagementTools.GetCreateString(assemblyInfo); //程序集的全名eg：GIStools.GISTool
m_Key = PluginManagementTools.GenerateKey(assemblyInfo); //key eg：GIStools_GISTool
asm = System.Reflection.Assembly.GetAssembly(assemblyInfo); //获取该程序集
try
{
//abstract类不加载
if (asm.GetType(m_CreateString).Attributes == System.Reflection.TypeAttributes.Abstract)
{
return(false);
}
}
catch (Exception e)
{
MapWinGIS.Utility.Logger.Dbg("检查类型是否为抽象类型是出错: " + asm.GetType(m_CreateString).Attributes.ToString() + e.ToString());
}
try
{
object o = asm.CreateInstance(m_CreateString);
if (o is IPlugin)
{
IPlugin plugin = (IPlugin)o;
m_Author = plugin.Author;
m_BuildDate = plugin.BuildDate;
m_Description = plugin.Description;
m_Name = plugin.Name;
if (m_Name == null || m_Name.Length == 0)
{
return(false);
}
m_Version = plugin.Version;
plugin = null;
asm = null;
o = null;
}
else
{
return(false);
}
}
catch (Exception ex)
{
Program.g_error = ex.ToString();
MapWinGIS.Utility.Logger.Message("插件 \'" + pathToFile + ("\' 加载失败！" + "\r\n" + "原因: " + ex.ToString()));
MapWinGIS.Utility.Logger.Dbg(ex.ToString());
return(false);
}
}
catch (System.Exception ex)
{
Program.g_error = ex.ToString();
MapWinGIS.Utility.Logger.Dbg(ex.ToString());
return(false);
}
return(true);
}
