def get_user_params()

in csharp/elasticbeanstalk/elasticbeanstalk-bg-pipeline/resources/blue_green.py [0:0]

• 13 lines of code
• 6 McCabe index (conditional complexity)

def get_user_params(job_data):
    """Decodes the JSON user parameters and validates the required properties.
    Args:
        job_data: The job data structure containing the UserParameters string which should be a valid JSON structure
    Returns:
        The JSON parameters decoded as a dictionary.
    Raises:
        Exception: The JSON can't be decoded or a property is missing.
    """
    try:
        # Get the user parameters which contain the stack, artifact and file settings
        user_parameters = job_data['actionConfiguration']['configuration']['UserParameters']
        decoded_parameters = json.loads(user_parameters)

    except Exception as e:
        # We're expecting the user parameters to be encoded as JSON
        # so we can pass multiple values. If the JSON can't be decoded
        # then fail the job with a helpful message.
        raise Exception('UserParameters could not be decoded as JSON')

    if 'blueEnvironment' not in decoded_parameters:
        # Validate that the stack is provided, otherwise fail the job
        # with a helpful message.
        raise Exception('Your UserParameters JSON must include the Blue environment name')

    if 'greenEnvironment' not in decoded_parameters:
        # Validate that the stack is provided, otherwise fail the job
        # with a helpful message.
        raise Exception('Your UserParameters JSON must include the Green environment name')

    if 'application' not in decoded_parameters:
        # Validate that the artifact name is provided, otherwise fail the job
        # with a helpful message.
        raise Exception('Your UserParameters JSON must include the application name')


    return decoded_parameters