Workflow Triggers

[dkovvuri]

Reason for this change

This change introduces a new construct for creating and managing AWS Glue Workflows and Triggers. AWS Glue Workflows are orchestration services that allow users to create, manage, and monitor complex extract, transform, and load (ETL) activities involving multiple crawlers, jobs, and triggers. The new construct provides a convenient way to define and configure Glue Workflows and different types of triggers, such as on-demand, scheduled, event-based, and conditional triggers.

Description of changes

The following changes have been made:

1. Added a new Workflow construct that extends the WorkflowBase class.
2. Implemented methods in the WorkflowBase class to add different types of triggers (on-demand, scheduled, event-based, and conditional) to the Workflow.
3. Added helper methods to render actions, predicates, and event batching conditions for the triggers.
4. Implemented import functionality to import existing Workflows using their name or ARN.

Description of how you validated changes

Unit tests have been added to validate the behavior of the Workflow construct and the different types of triggers. The tests cover the following scenarios:

1. Creating a Workflow with different types of triggers (on-demand, scheduled, event-based, and conditional).
2. Verifying the correct rendering of actions, predicates, and event batching conditions for the triggers.
3. Importing an existing Workflow using its name or ARN.
4. Testing error handling for invalid inputs, such as providing both job and crawler for an action, or providing job without job state for a condition.

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license