def collapse_instance_health_data()

in ebcli/display/data_poller.py [0:0]

• 46 lines of code
• 8 McCabe index (conditional complexity)

def collapse_instance_health_data(instances_health):
    instance_list = instances_health.get('InstanceHealthList', [])
    result = list()
    for i in instance_list:
        instance = dict()
        request_count = i.get('ApplicationMetrics', {}) \
            .get('RequestCount', 0)
        latency = i.get('ApplicationMetrics', {}).pop('Latency', {})
        instance.update(_format_latency_dict(latency, request_count))
        instance.update(i.get('ApplicationMetrics', {}).pop('StatusCodes', {}))
        instance.update(i.pop('ApplicationMetrics', {}))

        instance.update(i.get('System', {}).pop('CPUUtilization', {}))
        instance.update(i.pop('System', {}))
        instance.update(i)
        causes = instance.get('Causes', [])
        cause = causes[0] if causes else ''
        instance['Cause'] = cause

        instance['InstanceType'] = i.get('InstanceType')
        if i.get('AvailabilityZone'):
            try:
                instance['AvailabilityZone'] = i.get('AvailabilityZone').rsplit('-', 1)[-1]
            except:
                instance['AvailabilityZone'] = i.get('AvailabilityZone')
        if i.get('Deployment'):
            instance['TimeSinceDeployment'] = format_time_since(i.get('Deployment').get('DeploymentTime'))
            instance['DeploymentId'] = i.get('Deployment').get('DeploymentId')
            instance['DeploymentStatus'] = i.get('Deployment').get('Status')
            instance['DeploymentVersion'] = i.get('Deployment').get('VersionLabel')

        instance['load1'] = instance['LoadAverage'][0] \
            if 'LoadAverage' in instance else '-'
        instance['load5'] = instance['LoadAverage'][1] \
            if 'LoadAverage' in instance else '-'

        instance['launched'] = utils.get_local_time_as_string(instance['LaunchedAt'])
        instance['running'] = format_time_since(instance.get('LaunchedAt'))

        duration = instance.get('Duration', 10)
        instance['requests'] = request_count / (duration * 1.0)

        for key in {'Status_2xx', 'Status_3xx', 'Status_4xx', 'Status_5xx'}:
            _convert_data_to_percentage(
                instance,
                key,
                request_count,
                add_sort_column=True
            )

        # Add status sort index
        instance['status_sort'] = __get_health_sort_order(instance['HealthStatus'])

        result.append(instance)

    return result