fixes related to custom and standard properties from MR !6

simpleexample2/core/src/main/java/simpleex/core/MetaData.java

@@ -18,6 +18,12 @@ public class MetaData {
    */
   public final static String DESCRIPTION_PROPERTY = "description";
 
+  /**
+   * the list containing standard properties associated to location metadata
+   */
+  final public static List<String> STD_PROPERTIES = Collections.unmodifiableList(Arrays.asList(NAME_PROPERTY, DESCRIPTION_PROPERTY));
+ 
+  
   private Collection<String> tags;
   private List<String> properties;
 
@@ -279,13 +285,32 @@ public class MetaData {
     }
   }
   
+  /**
+   * check if a certain property is custom or standard
+   * a property is standard when the name is found in STD_PROPERTIES
+   * @param propertyName the property name to check
+   * @return true if custom false if standard prop
+   */
+  public boolean  isCustomProperty(String propertyName) {
+    for (String knownPropertyName : STD_PROPERTIES) { 
+      if (propertyName == knownPropertyName) { 
+        return false; 
+      }
+    } 
+    return true; 
+  }
+  
   /**
    * Convenience method to check if the metadata contains custom properties
    * that is other properties than the name and description
-   * @return true if there are any properties apart from name and description false otherwise 
+   * @return true if there are any properties apart from standard ones and false otherwise 
    */
   public boolean hasCustomProperties() {
-    return hasOtherProperties(NAME_PROPERTY, DESCRIPTION_PROPERTY);
+    for (int i = 0; i < this.properties.size(); i = i + 2) { 
+      String propertyName = this.properties.get(i); 
+      if(isCustomProperty(propertyName)) return true; 
+    }
+    return false;
   }
   
   /**
@@ -294,16 +319,19 @@ public class MetaData {
    * @return true if there are any properties not in the list, false otherwise 
    */
   public boolean hasOtherProperties(String ... propertyNames) {
-    for (int i = 0; i < this.properties.size(); i=i+2) {
-      String propertyName = this.properties.get(i);
-      boolean inList = false;
-      for (int j = 0; j < propertyNames.length; j++) {
-        String knownPropertyName = propertyNames[j];
-        inList = inList || (propertyName == knownPropertyName);
-      }
-      if(!inList) return true;
+    outer: for (int i = 0; i < this.properties.size(); i = i + 2) { 
+      String propertyName = this.properties.get(i); 
+      for (String knownPropertyName : propertyNames) { 
+        if (propertyName == knownPropertyName) { 
+          continue outer; 
+        } 
+        return true; 
+      } 
     }
     return false;
   }
+  
+  
+  
 }