ContactWorkers for ineligible workers

[leeper]

When trying to use ContactWorkers for an ineligible worker (one who hasn't worked for you before), the MTurk response is that the request was valid but also contains a NotifyWorkersFailureStatus element. These need to be parsed and the value in the ContactWorkers return value should probably be changed from TRUE to something else.

Here's an example response:

<?xml version="1.0"?>
<NotifyWorkersResponse>
<OperationRequest>
<RequestId>b8eed79a-dd73-4249-92ab-e6cf9b3e3a20</RequestId></OperationRequest>
<NotifyWorkersResult>
<Request>
<IsValid>True</IsValid>
</Request>
<NotifyWorkersFailureStatus>
<WorkerId>A11VGV0ZAI1EQ2</WorkerId>
<NotifyWorkersFailureMessage>Cannot send a notification to a worker who has not done any work for you</NotifyWorkersFailureMessage>
<NotifyWorkersFailureCode>HardFailure</NotifyWorkersFailureCode>
</NotifyWorkersFailureStatus>
</NotifyWorkersResult>
</NotifyWorkersResponse>

The response in batch mode is similar:

<?xml version="1.0"?>
<NotifyWorkersResponse><OperationRequest><RequestId>7311d1f3-14f3-4171-9b33-ebf7c0d15ec6</RequestId></OperationRequest><NotifyWorkersResult><Request><IsValid>True</IsValid></Request><NotifyWorkersFailureStatus><WorkerId>A12H0Z2FYNK844</WorkerId><NotifyWorkersFailureMessage>Cannot send a notification to a worker who has not done any work for you</NotifyWorkersFailureMessage><NotifyWorkersFailureCode>HardFailure</NotifyWorkersFailureCode></NotifyWorkersFailureStatus><NotifyWorkersFailureStatus><WorkerId>A11VGV0ZAI1EQ2</WorkerId><NotifyWorkersFailureMessage>Cannot send a notification to a worker who has not done any work for you</NotifyWorkersFailureMessage><NotifyWorkersFailureCode>HardFailure</NotifyWorkersFailureCode></NotifyWorkersFailureStatus></NotifyWorkersResult></NotifyWorkersResponse>