Greg Leclercq

Feature/resume workflow

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Fix #28. Takes a reference of a workflow execution in input and resumes this executetion without executing again tasks that were completed.

While adding the decider and activity worker processes, I was thinking that anything that could help to bootstrap the execution of a workflow would be a great improvement. It led...

## Description This feature allows to resume a workflow where it _failed_, _timed out_ or was _terminated_ or _cancelled_. That what we mean by _stopped_. Hence the tasks that were...

Local execution: serialize and deserialize objects before passing them to task

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The local execution does not serialize and deserialize the objects it passes to the task handlers. However users expect the local execution to mimic distributed execution and use it to...

This module should provide facilities to read the history of a workflow execution and return: - The time spent in each activity or child workflow. - The activites that failed....

A workflow definition should associated with a client that allows to start, cancel, or terminate it.

A `FailWorkflowExecution` decision may [fail](http://docs.aws.amazon.com/amazonswf/latest/apireference/API_FailWorkflowExecutionFailedEventAttributes.html) with error `UnhandledDecision` if there is another scheduled decision at the same time. See the [SWF documentation](http://docs.aws.amazon.com/amazonswf/latest/apireference/API_Decision.html): _An UnhandledDecision fault will be returned if a...

## Overview When SWF cannot schedule an activity, it adds an `ActivityEvent` with a `scheduled_failed` state. It occurs when: - The activity type does not exist. - The number of...

Provide an interface to chain computations

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A `Future` could be a functor (in [`scala.concurrent.future`](http://docs.scala-lang.org/overviews/core/futures.html#functional-composition-and-for-comprehensions) it is even a monad) and provide the operation `map :: f a -> (a -> b) -> f b` (`fmap ::...