private static void BuildIndex(string pluginPath, DataTable dtExporters, DataTable dtImporters)
{
if (!Directory.Exists(pluginPath))
{
return;
}
string[] files = Directory.GetFiles(pluginPath, "*.dll", SearchOption.AllDirectories);
string[] array = files;
for (int i = 0; i < array.Length; i++)
{
string filename = array[i];
Assembly assembly = Assembly.Load(TransferContainer.LoadPluginFile(filename));
Type[] exportedTypes = assembly.GetExportedTypes();
for (int j = 0; j < exportedTypes.Length; j++)
{
Type type = exportedTypes[j];
if (type.BaseType != null)
{
if (type.BaseType.Name == "ExportAdapter")
{
TransferContainer.AddToExportIndex(type, filename, dtExporters);
}
else
{
if (type.BaseType.Name == "ImportAdapter")
{
TransferContainer.AddToImportIndex(type, filename, dtImporters);
}
}
}
}
}
}
private static Type GetPlugin(string fullName, string tableName)
{
DataSet dataSet = TransferContainer.TransferCache.Get(transferIndexesCacheKey) as DataSet;
DataRow[] array = dataSet.Tables[tableName].Select("fullName='" + fullName.ToLower() + "'");
if (array.Length == 0 || !File.Exists(array[0]["filePath"].ToString()))
{
return(null);
}
Assembly assembly = Assembly.Load(TransferContainer.LoadPluginFile(array[0]["filePath"].ToString()));
return(assembly.GetType(fullName, false, true));
}
public static ExportAdapter GetExporter(string fullName, params object[] exportParams)
{
if (string.IsNullOrEmpty(fullName))
{
return(null);
}
Type exporter = TransferContainer.Instance().GetExporter(fullName);
if (exporter == null)
{
return(null);
}
if (exportParams != null && exportParams.Length > 0)
{
return(Activator.CreateInstance(exporter, exportParams) as ExportAdapter);
}
return(Activator.CreateInstance(exporter) as ExportAdapter);
}
internal static TransferContainer Instance()
{
if (TransferContainer._instance == null)
{
object lockHelper;
Monitor.Enter(lockHelper = TransferContainer.LockHelper);
try
{
if (TransferContainer._instance == null)
{
TransferContainer._instance = new TransferContainer();
}
}
finally
{
Monitor.Exit(lockHelper);
}
}
TransferContainer.Init();
return(TransferContainer._instance);
}
private static void Init()
{
if (TransferContainer.TransferCache.Get(transferIndexesCacheKey) != null)
{
return;
}
string text = HttpContext.Current.Request.MapPath("~/plugins/transfer");
DataSet dataSet = new DataSet();
DataTable dataTable = new DataTable("Exporters");
DataTable dataTable2 = new DataTable("Importers");
TransferContainer.InitTable(dataTable);
TransferContainer.InitTable(dataTable2);
dataTable.Columns.Add(new DataColumn("exportToName"));
dataTable.Columns.Add(new DataColumn("exportToVersion"));
dataTable2.Columns.Add(new DataColumn("importToName"));
dataTable2.Columns.Add(new DataColumn("importToVersion"));
dataSet.Tables.Add(dataTable);
dataSet.Tables.Add(dataTable2);
TransferContainer.BuildIndex(text, dataTable, dataTable2);
TransferContainer.TransferCache.Insert(transferIndexesCacheKey, dataSet, new CacheDependency(text));
}
public static Dictionary <string, string> GetImportAdapters(Target importTo, string sourceName)
{
Dictionary <string, string> dictionary = new Dictionary <string, string>();
DataRow[] importerList = TransferContainer.Instance().GetImporterList(sourceName, importTo.Name);
if (importerList == null || importerList.Length == 0)
{
return(dictionary);
}
string value = null;
int num = 0;
do
{
Version v = new Version(importerList[num]["importToVersion"].ToString());
if (v <= importTo.Version)
{
value = importerList[num]["importToVersion"].ToString();
}
num++;
}while (string.IsNullOrEmpty(value) && num < importerList.Length);
if (!string.IsNullOrEmpty(value))
{
DataRow[] array = importerList;
for (int i = 0; i < array.Length; i++)
{
DataRow dataRow = array[i];
string text = dataRow["importToVersion"].ToString();
if (text.Equals(value))
{
dictionary.Add(dataRow["fullName"].ToString(), dataRow["sourceName"].ToString() + dataRow["sourceVersion"].ToString());
}
}
}
return(dictionary);
}
internal Type GetImporter(string fullName)
{
return(TransferContainer.GetPlugin(fullName, "Importers"));
}