Merge "Run PeriodicJobs only if constraints are satisfied"

     * the constraints are satisfied <strong>or</strong> the deadline on the job has expired.

     */

    public synchronized boolean isReady() {

        // Deadline constraint trumps other constraints

        // Deadline constraint trumps other constraints (except for periodic jobs where deadline

        // (is an implementation detail. A periodic job should only run if it's constraints are

        // satisfied).

        // AppNotIdle implicit constraint trumps all!

        return (isConstraintsSatisfied()

                    || (hasDeadlineConstraint() && deadlineConstraintSatisfied.get()))

                    || (!job.isPeriodic()

                            && hasDeadlineConstraint() && deadlineConstraintSatisfied.get()))

                && appNotIdleConstraintSatisfied.get();

    }