age_range field management

age_range comes as part of the public_profile permission, it indicates
unspecific age range that this person's age fits into.
values: min-max: (13-17 / 18-20 / 21-null)

usage:
Facebook facebook = new FacebookFactory().getInstance();
facebook.setOAuthAccessToken(new AccessToken(facebookToken, null));
User me = facebook.getMe(new Reading().fields(new String[]
{“age_range”, "birthday", "email", … }));

facebook4j-core/src/main/java/facebook4j/User.java

@@ -60,6 +60,7 @@ public interface User {
     User.VideoUploadLimits getVideoUploadLimits();
     URL getWebsite();
     List<User.Work> getWork();
+    User.AgeRange getAgeRange();
 
     interface Education {
         IdNameEntity getYear();
@@ -90,6 +91,13 @@ interface Work {
 
     }
 
+ 	interface AgeRange {
+ 		// one value could be null (13-17 / 18-20 / 21 - null)
+		Long getMin();
+		Long getMax();
+
+	}
+
 
     String BIRTHDAY_DATE_FORMAT = "MM/dd/yyyy";
 

facebook4j-core/src/main/java/facebook4j/internal/json/UserJSONImpl.java

@@ -80,6 +80,7 @@
     private User.VideoUploadLimits videoUploadLimits;
     private URL website;
     private List<User.Work> work;
+    private User.AgeRange ageRange;
 
     /*package*/UserJSONImpl(HttpResponse res, Configuration conf) throws FacebookException {
         if (conf.isJSONStoreEnabled()) {
@@ -220,6 +221,10 @@ private void init(JSONObject json) throws FacebookException {
             } else {
                 work = Collections.emptyList();
             }
+            if (!json.isNull("age_range")) {
+               JSONObject ageRangeJSONObject = json.getJSONObject("age_range");
+               ageRange = new AgeRangeJSONImpl(ageRangeJSONObject);
+           }
         } catch (JSONException jsone) {
             throw new FacebookException(jsone.getMessage() + ":" + json.toString(), jsone);
         }
@@ -361,6 +366,10 @@ public List<Work> getWork() {
         return work;
     }
 
+    public User.AgeRange getAgeRange() {
+       return ageRange;
+   }
+
     /*package*/
     static ResponseList<User> createUserList(HttpResponse res, Configuration conf) throws FacebookException {
         try {
@@ -452,7 +461,7 @@ public String toString() {
                 + relationshipStatus + ", religion=" + religion
                 + ", significantOther=" + significantOther
                 + ", videoUploadLimits=" + videoUploadLimits + ", website="
-                + website + ", work=" + work + "]";
+                + website + ", work=" + work + ", ageRange=" + ageRange + "]";
     }
 
 
@@ -857,4 +866,55 @@ public String toString() {
         }
     }
 
+    private final class AgeRangeJSONImpl implements User.AgeRange, java.io.Serializable {
+       private static final long serialVersionUID = -4890967721976343047L;
+
+       private final Long min;
+       private final Long max;
+
+       AgeRangeJSONImpl(JSONObject json) throws FacebookException {
+           min = getLong("min", json);
+           max = getLong("max", json);
+       }
+
+       public Long getMin() {
+           return min;
+       }
+
+       public Long getMax() {
+           return max;
+       }
+
+       @Override
+       public int hashCode() {
+           final int prime = 31;
+           int result = 1;
+           result = prime * result + (int) (min ^ (min >>> 32));
+           result = prime * result + (int) (max ^ (max >>> 32));
+           return result;
+       }
+
+       @Override
+       public boolean equals(Object obj) {
+           if (this == obj)
+               return true;
+           if (obj == null)
+               return false;
+           if (getClass() != obj.getClass())
+               return false;
+           AgeRangeJSONImpl other = (AgeRangeJSONImpl) obj;
+           if (min != other.min)
+               return false;
+           if (max != other.max)
+               return false;
+           return true;
+       }
+
+       @Override
+       public String toString() {
+           return "AgeRangeJSONImpl [min=" + min + ", max=" + max
+                   + "]";
+       }
+   }
+
 }