@Override
  public void resumeInstance(String feedName, String instanceId) {
    String instanceKey = feedName + "/" + instanceId;

    String suspendedStatus = suspendedInstanceStatusMap.get(instanceKey);
    if (suspendedStatus != null) {
      setInstanceStatus(feedName, instanceId, suspendedStatus);
      suspendedInstanceStatusMap.remove(instanceKey);
    }
  }
An IvoryService implementation used for testing the DR related resource providers.
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/TestIvoryService.java