# ReopenProcessActivity

## Overview

The service allow reopening a process activity after it has been cancelled/skipped.

## Input Object

| Name            |         Type         | Description                         |
| --------------- | :------------------: | ----------------------------------- |
| ProcessActivity | IndEqProcessActivity | The Process Activity  to be *Reopened*. |

## Output Object

| Name            |         Type         | Description                                        |
| --------------- | :------------------: | -------------------------------------------------- |
| ProcessActivity | IndEqProcessActivity | The updated Process Activity after *Reopened*. |

## Pre Conditions

* The input *ProcessActivity* must not be null.
* The *ProcessActivity* must be in one of the following states: *Canceled* or *Skipped*.
* The *ProcessActivity* should have no Checklist associated.

## How it works

1. Validates the input is not null and loads the full *ProcessActivity* entity if exits.
2. Validates the *ProcessActivity* is in *Canceled* or *Skipped* state. If not, throws an exception.
3. Validates the *ProcessActivity* if there is checklist associated. If it is, throws an exception.
4. Validates the *ProcessActivityDefinition* of the *ProcessActivity*, if the *ProcessActivityDefinition* has been removed from the current flow, then throw an error.
5. Validates the *Condition Expression* of *ProcessActivityDefinition*. If the context of the *ConditionExpression* not meet, throws an exception.
6. If the *ProcessActivity* is terminated, then unterminate the *ProcessActivity*.
7. Sets the system state of the Process Activity to *Open* if it's system state isn't *Open*.
8. Returns the updated Process Activity  in the output.