[jira] [Created] (NIFI-9817) Add a Validator for the PutCloudWatchMetric Processor's Unit Parameter

["Pat Alwell (Jira)" <ji...@apache.org>]

Pat Alwell created NIFI-9817:
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             Summary: Add a Validator for the PutCloudWatchMetric Processor's Unit Parameter
                 Key: NIFI-9817
                 URL: https://issues.apache.org/jira/browse/NIFI-9817
             Project: Apache NiFi
          Issue Type: Bug
          Components: Core UI
    Affects Versions: 1.15.3
         Environment: ProductName:	macOS
ProductVersion:	12.2.1
BuildVersion:	21D62
            Reporter: Pat Alwell
            Assignee: Pat Alwell
         Attachments: Screen Shot 2022-01-29 at 1.22.02 PM.png

The AWS PutCloudWatchMetric processor has a Unit property that requires a value from AWS's CloudWatch API specifications. This value is a constant from a predefined set of string parameters. The API enforces casing so a unit value of "bytes" fails to make a successful API request, whereas "Bytes" succeeds. I've attached a screenshot that leads to a stack trace.

The proposed fix includes a new Validator() to warn the user about the issues prior to starting the PutCloudWatchMetric processor and a set to determine the partitions for the Unit field in API requests to AWS.

This is the hyper link for the API specification details:

[ https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_MetricDatum.html|https://docs.aws.amazon.com/AmazonCloudWatch/latest/APIReference/API_MetricDatum.html].



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