private IOperation CreateCompensatingOperation(WorkflowConfiguration configuration)
{
var createMethod = typeof(Operation).GetMethod("Create", BindingFlags.Public | BindingFlags.Static);
var methodWithTypeArgument = createMethod.MakeGenericMethod(_operationType);
return((IOperation)methodWithTypeArgument.Invoke(null, new object[] { configuration }));
}
/// <summary>
/// Resolve an operation instance. It can take any of the registered dependency
/// types as constructor arguments.
/// </summary>
/// <typeparam name="TOperation">The type of operation to create</typeparam>
/// <param name="configuration">The current workflow configuration</param>
/// <returns>The new, uninitialized operation</returns>
public IOperation Resolve <TOperation>(WorkflowConfiguration configuration) where TOperation : IOperation
{
Verify.NotNull(configuration, nameof(configuration));
var actualOperation = GetActualOperation <TOperation>();
return(OperationResolverHelper.ApplyBehaviors(actualOperation, configuration));
}
/// <summary>
/// Create a new initialized instance of an operation type.
/// </summary>
/// <typeparam name="TOperation">The type of operation to create</typeparam>
/// <param name="configuration">The current workflow configuration</param>
/// <returns>A new operation instance</returns>
public static IOperation Create <TOperation>(WorkflowConfiguration configuration)
where TOperation : IOperation
{
Verify.Operation(configuration != null, "Operation.Configuration was not set.");
Verify.Operation(configuration.Resolver != null, "Operation.Configuration.Resolver was not set. You can set it to a SimpleOperationResolver instance or add a more full featured, external implementation.");
try
{
var operation = configuration.Resolver.Resolve <TOperation>(configuration);
operation.Initialize(configuration);
return(operation);
}
catch (Exception e)
{
throw new OperationCreationException <TOperation>(e);
}
}
/// <summary>
/// Initialize the operation.
/// </summary>
/// <param name="configuration">The global configuration of the workflow</param>
public virtual void Initialize(WorkflowConfiguration configuration)
{
Verify.NotNull(configuration, nameof(configuration));
_configuration = configuration;
}
/// <summary>
/// Creates a new OperationBehavior instance.
/// </summary>
/// <param name="configuration">The configuration of the executing workflow</param>
public override OperationBehavior CreateBehavior(WorkflowConfiguration configuration)
{
return(new CompensatingOperationBehavior(CreateCompensatingOperation(configuration), _compensatedExceptionTypes));
}
/// <summary>
/// Create the retry behavior.
/// </summary>
/// <param name="configuration">The configuration of the executing workflow</param>
/// <returns>The created behavior</returns>
public override OperationBehavior CreateBehavior(WorkflowConfiguration configuration)
{
return(new RetryBehavior(_timesToRetry, TimeSpan.FromMilliseconds(_retryDelayInMilliSeconds), _retryExeptionTypes));
}
/// <summary>
/// Creates a new OperationBehavior instance.
/// </summary>
/// <param name="configuration">The configuration of the executing workflow</param>
public override OperationBehavior CreateBehavior(WorkflowConfiguration configuration)
{
return(new ContinueOnFailureBehavior());
}
/// <summary>
/// Create a new atomic behavior instance.
/// </summary>
/// <param name="configuration">The configuration of the executing workflow</param>
/// <returns>The behavior</returns>
public override OperationBehavior CreateBehavior(WorkflowConfiguration configuration)
{
return(new AtomicBehavior());
}
