private TransactionConfig CreateTransactionConfig(ComponentModel model)
{
TransactionConfig config = new TransactionConfig();
GatherTransactionAttributes(config, model.Implementation);
GatherTransactionConfiguration(config, model);
return config;
}
private void OnModelCreated(ComponentModel model)
{
if (IsTransactional(model))
{
TransactionConfig config = CreateTransactionConfig(model);
_transactionConfigHolder.Register(model.Implementation, config);
model.Interceptors.Add(
new InterceptorReference(typeof(TransactionInterceptor)));
}
}
private void GatherTransactionAttributes(TransactionConfig config, Type implementation)
{
MethodInfo[] methods = implementation.GetMethods(
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
foreach (MethodInfo method in methods)
{
if (method.IsDefined(typeof(RequiresTransactionAttribute), true))
{
config.AddMethod(method);
}
}
}
public object Intercept(IMethodInvocation invocation, params object[] args)
{
if (_transactionManager.CurrentTransaction != null)
{
// No support for nested transactions
// is necessary
return(invocation.Proceed(args));
}
TransactionConfig config =
_transactionConfHolder.GetConfig(
invocation.Method.DeclaringType);
if (config != null && config.IsMethodTransactional(invocation.Method))
{
ITransaction transaction =
_transactionManager.CreateTransaction();
object value = null;
try
{
value = invocation.Proceed(args);
transaction.Commit();
}
catch (Exception ex)
{
transaction.Rollback();
throw ex;
}
finally
{
_transactionManager.Release(transaction);
}
return(value);
}
else
{
return(invocation.Proceed(args));
}
}
private void GatherTransactionConfiguration(TransactionConfig config, ComponentModel model)
{
if (model.Configuration == null)
{
return;
}
IConfiguration transactionNode = model.Configuration.Children["transaction"];
if (transactionNode == null)
{
return;
}
foreach (IConfiguration methodNode in transactionNode.Children)
{
config.AddMethodName(methodNode.Value);
}
}
private void GatherTransactionConfiguration(TransactionConfig config, ComponentModel model)
{
if (model.Configuration == null) return;
IConfiguration transactionNode = model.Configuration.Children["transaction"];
if (transactionNode == null) return;
foreach(IConfiguration methodNode in transactionNode.Children)
{
config.AddMethodName( methodNode.Value );
}
}
private void GatherTransactionAttributes(TransactionConfig config, Type implementation)
{
MethodInfo[] methods = implementation.GetMethods(
BindingFlags.Instance|BindingFlags.Public|BindingFlags.NonPublic );
foreach(MethodInfo method in methods)
{
if (method.IsDefined( typeof(RequiresTransactionAttribute), true ))
{
config.AddMethod( method );
}
}
}
public void Register(Type implementation, TransactionConfig config)
{
_impl2Config[implementation] = config;
}
public void Register(Type implementation, TransactionConfig config)
{
_impl2Config[implementation] = config;
}