protected internal virtual void CloseSessions(CommandInvocationContext commandInvocationContext)
{
//Scope.Dispose();
//Log.LogInfo("销毁DI对象","------------------Dispose CommandContext Scope------------------");
//foreach (var session in SessionList)
// try
// {
// session.Close();
// }
// catch (System.Exception exception)
// {
// commandInvocationContext.TrySetThrowable(exception);
// }
}
public override T Execute <T>(ICommand <T> command)
{
CommandContext context = null;
if (!AlwaysOpenNew)
{
// check whether we can reuse the command context
var existingCommandContext = Context.CommandContext;
if ((existingCommandContext != null) && IsFromSameEngine(existingCommandContext))
{
context = existingCommandContext;
}
}
var openNew = context == null;
var commandObj = command as ICommand <object>;
var commandInvocationContext = new CommandInvocationContext(commandObj);
Context.CommandInvocationContext = commandInvocationContext;
try
{
if (openNew)
{
Log.DebugOpeningNewCommandContext();
context = CommandContextFactory.CreateCommandContext();
}
else
{
Log.DebugReusingExistingCommandContext();
}
Context.CommandContext = context;
Context.ProcessEngineConfiguration = ProcessEngineConfiguration;
// delegate to next interceptor in chain
return(Next.Execute(command));
}
//// 取消catch 方便debug
catch (System.Exception e)
{
commandInvocationContext.TrySetThrowable(e);
throw;
}
finally
{
try
{
if (openNew)
{
Log.ClosingCommandContext();
context.Close(commandInvocationContext);
}
else
{
commandInvocationContext.Rethrow();
}
}
finally
{
Context.RemoveCommandInvocationContext();
Context.RemoveCommandContext();
Context.RemoveProcessEngineConfiguration();
}
}
}
public virtual void Close(CommandInvocationContext commandInvocationContext)
{
// the intention of this method is that all resources are closed properly,
// even
// if exceptions occur in close or flush methods of the sessions or the
// transaction context.
//try
//{
// try
// {
// try
// {
if (commandInvocationContext.Throwable == null)
{
FireCommandContextClose();
FlushSessions();
//清理缓存
Context.CommandContext.DbEntityCache.Clear();
}
//}
//catch (System.Exception exception)
//{
// commandInvocationContext.TrySetThrowable(exception);
//}
//finally
//{
//try
//{
if (commandInvocationContext.Throwable == null)
{
FlushTransactions();//外部代码事务
try
{
transactionContext.Commit(); //系统数据库事务
}
catch (DbUpdateConcurrencyException ex)
{
EntityEntry entry = ex.Entries.ElementAt(0);
var dbOp = new DbEntityOperation();
dbOp.SetFailed(false);
dbOp.EntityType = entry.Entity.GetType();
dbOp.Entity = entry.Entity as IDbEntity;
HandleOptimisticLockingException(dbOp);
}
}
//}
//catch (System.Exception exception)
//{
// commandInvocationContext.TrySetThrowable(exception);
//}
//if (commandInvocationContext.Throwable != null)
//{
// // fire command failed (must not fail itself)
// FireCommandFailed(commandInvocationContext.Throwable);
// if (ShouldLogInfo(commandInvocationContext.Throwable))
// Log.InfoException(commandInvocationContext.Throwable);
// else if (ShouldLogFine(commandInvocationContext.Throwable))
// Log.DebugException(commandInvocationContext.Throwable);
// else
// Log.ErrorException(commandInvocationContext.Throwable);
// transactionContext.Rollback();
//}
//}
//}
//catch (System.Exception exception)
//{
// commandInvocationContext.TrySetThrowable(exception);
//}
//finally
//{
CloseSessions(commandInvocationContext);
//}
//}
//catch (System.Exception exception)
//{
// commandInvocationContext.TrySetThrowable(exception);
//}
// rethrow the original exception if there was one
//commandInvocationContext.Rethrow();
}