KRACOEUS-8012 Non-employees are appearing as PD/PI on S2S forms

coeus-api-all/src/main/java/org/kuali/coeus/common/api/unit/UnitRepositoryService.java

@@ -1,5 +1,7 @@
 package org.kuali.coeus.common.api.unit;
 
+import java.util.List;
+
 public interface UnitRepositoryService {
 
     /**
@@ -15,4 +17,15 @@ public interface UnitRepositoryService {
      * @return the unit or null if not found.
      */
     UnitContract findTopUnit();
+
+    /**
+     * Finds the hierarchy for unit,including all the parent units and the unit itself.
+     * If no matching Units are found an empty list is returned.
+     * The unit number cannot be blank.
+     *
+     * @param unitNumber the unit number.  cannot be blank.
+     * @return a list of Units or an empty list if not found.
+     * @throws java.lang.IllegalArgumentException if the unitNumber is blank
+     */
+    List<UnitContract> getUnitHierarchyForUnit(String unitNumber);
 }