hire updates

java/com/aa/act/interview/org/Organization.java

@@ -4,36 +4,71 @@
 
 public abstract class Organization {
 
-	private Position root;
-
-	public Organization() {
-		root = createOrganization();
-	}
-
-	protected abstract Position createOrganization();
-
-	/**
-	 * hire the given person as an employee in the position that has that title
-	 * 
-	 * @param person
-	 * @param title
-	 * @return the newly filled position or empty if no position has that title
-	 */
-	public Optional<Position> hire(Name person, String title) {
-		//your code here
-		return Optional.empty();
-	}
-
-	@Override
-	public String toString() {
-		return printOrganization(root, "");
-	}
-
-	private String printOrganization(Position pos, String prefix) {
-		StringBuffer sb = new StringBuffer(prefix + "+-" + pos.toString() + "\n");
-		for(Position p : pos.getDirectReports()) {
-			sb.append(printOrganization(p, prefix + "\t"));
-		}
-		return sb.toString();
-	}
+	//initializing static int so identifier for each can be instantiated and unique
+    static int identifier = 1;
+    private Position root;
+
+    public Organization() {
+        root = createOrganization();
+    }
+
+    protected abstract Position createOrganization();
+
+    /**
+     * hire the given person as an employee in the position that has that title
+     *
+     * @param person
+     * @param title
+     * @return the newly filled position or empty if no position has that title
+     */
+    public Optional<Position> hire(Name person, String title) {
+        //your code here
+        //create option object for position based on the title; i.e. if it exists
+        Optional<Position> position = getPositionFromTitle(title, root);
+        //if the value is present for the title, set the @person as employee
+        position.ifPresent(a -> a.setEmployee(Optional.of(new Employee(identifier++, person))));
+
+        return position;
+    }
+
+    /**
+     * method to get the Position Object from title
+     *
+     * @param title
+     * @param position
+     * @return if the position exists for @title return the Position else return empty
+     */
+    public Optional<Position> getPositionFromTitle(String title, Position position) {
+        //optional object from position
+        Optional<Position> currentPosition = Optional.of(position);
+        //if the title matched current position return the position to update its employee
+        if (currentPosition.get().getTitle().equals(title)) {
+            return currentPosition;
+        }
+        //else get the position's direct reports to check and see if the title matches any
+		//executing this is loop until the tile matches the position
+        else {
+        	//loop used as multiple direct reports can occure
+            for (Position p : position.getDirectReports()) {
+                currentPosition = getPositionFromTitle(title, p);
+                if (currentPosition.isPresent()) {
+                    return currentPosition;
+                }
+            }
+        }
+        return Optional.empty();
+    }
+
+    @Override
+    public String toString() {
+        return printOrganization(root, "");
+    }
+
+    private String printOrganization(Position pos, String prefix) {
+        StringBuffer sb = new StringBuffer(prefix + "+-" + pos.toString() + "\n");
+        for (Position p : pos.getDirectReports()) {
+            sb.append(printOrganization(p, prefix + "\t"));
+        }
+        return sb.toString();
+    }
 }