Add getDepartments and getHolidays

src/main/java/ley/untis/UntisClient.java

@@ -163,5 +163,31 @@ public class UntisClient {
         }
     }
 
+    /**
+     * Get list of departments
+     * @return an ArrayList of departments
+     * @throws APIRequestException
+     */
+    public DepartmentResponse getDepartments() throws APIRequestException {
+        try {
+            return client.invoke("getDepartments", new Object[0], DepartmentResponse.class);
+        } catch (Throwable e) {
+            throw new APIRequestException(e);
+        }
+    }
+
+    /**
+     * Get list of holidays
+     * @return an ArrayList of holidays
+     * @throws APIRequestException
+     */
+    public HolidayResponse getHolidays() throws APIRequestException {
+        try {
+            return client.invoke("getHolidays", new Object[0], HolidayResponse.class);
+        } catch (Throwable e) {
+            throw new APIRequestException(e);
+        }
+    }
+
 
 }

src/main/java/ley/untis/data/DepartmentResponse.java

@@ -0,0 +1,13 @@
+package ley.untis.data;
+
+import java.util.ArrayList;
+
+public class DepartmentResponse extends ArrayList<DepartmentResponse.Department> {
+
+    public static class Department {
+        public int id;
+        public String name;
+        public String longName;
+    }
+
+}

src/main/java/ley/untis/data/HolidayResponse.java

@@ -0,0 +1,15 @@
+package ley.untis.data;
+
+import java.util.ArrayList;
+
+public class HolidayResponse extends ArrayList<HolidayResponse.Holiday> {
+
+    public static class Holiday {
+        public int id;
+        public String name;
+        public String longName;
+        public int startDate;
+        public int endDate;
+    }
+
+}