// (self.length != 0) ?
//     self :
//     (getContextData('2', 'cds.PROCESS_JOBID', '') == '-') ?
//         self :
//         getContextData('2', 'cds.PROCESS_JOBID', '')

// (self.length != 0) ?
// self :
// getContextData('2', 'cds.MID', '')

'-', 1, '-'

getValue(self, self.length, getContextData('2', 'cds.MID', ''));

function getValue(value, length, mid) {
    if (length !== 0 || mid === '-')
        return value;
    else
        return mid;
}