func lookupCloudWatchLogMetricFilter(conn *cloudwatchlogs.CloudWatchLogs,
name, logGroupName string, nextToken *string) (*cloudwatchlogs.MetricFilter, error) {
input := cloudwatchlogs.DescribeMetricFiltersInput{
FilterNamePrefix: aws.String(name),
LogGroupName: aws.String(logGroupName),
NextToken: nextToken,
}
log.Printf("[DEBUG] Reading CloudWatch Log Metric Filter: %s", input)
resp, err := conn.DescribeMetricFilters(&input)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok && awsErr.Code() == "ResourceNotFoundException" {
return nil, &resource.NotFoundError{
Message: fmt.Sprintf("CloudWatch Log Metric Filter %q / %q not found via"+
" initial DescribeMetricFilters call", name, logGroupName),
LastError: err,
LastRequest: input,
}
}
return nil, fmt.Errorf("Failed describing CloudWatch Log Metric Filter: %s", err)
}
for _, mf := range resp.MetricFilters {
if *mf.FilterName == name {
return mf, nil
}
}
if resp.NextToken != nil {
return lookupCloudWatchLogMetricFilter(conn, name, logGroupName, resp.NextToken)
}
return nil, &resource.NotFoundError{
Message: fmt.Sprintf("CloudWatch Log Metric Filter %q / %q not found "+
"in given results from DescribeMetricFilters", name, logGroupName),
LastResponse: resp,
LastRequest: input,
}
}
