Index: topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityUtil.java
diff -u topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityUtil.java:1.12 topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityUtil.java:1.13
--- topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityUtil.java:1.12	Tue Oct 31 09:08:26 2006
+++ topia-security/src/java/org/codelutin/topia/security/util/TopiaSecurityUtil.java	Tue Nov 14 10:25:32 2006
@@ -24,9 +24,9 @@
 * Created: 15 févr. 2006
 *
 * @author Arnaud Thimel <thimel@codelutin.com>
-* @version $Revision: 1.12 $
+* @version $Revision: 1.13 $
 *
-* Mise a jour: $Date: 2006/10/31 09:08:26 $
+* Mise a jour: $Date: 2006/11/14 10:25:32 $
 * par : $Author: ruchaud $
 */
 
@@ -41,6 +41,7 @@
 
 import javax.security.auth.Subject;
 
+import org.apache.commons.lang.ArrayUtils;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.codelutin.topia.TopiaContext;
@@ -241,4 +242,32 @@
         return topiaContext.beginTransaction();
     }
     
+    /**
+     * Détermine si la classe implémente une interface
+     * <p>
+     * interface A <---- class B <---- class C
+     * <p>
+     * interface D <---- class E
+     * <p>
+     * isImplement(C, A) = true
+     * <p>
+     * isImplement(E, A) = false
+     * 
+     * @param klass la classe
+     * @param iface l'interface
+     * @return vrai si la classe implémente l'interface sinon faux
+     */
+    public static boolean isImplement(Class klass, Class iface) {
+        boolean result = false;
+        
+        Class[] interfaces = klass.getInterfaces();
+        result |= ArrayUtils.contains(interfaces, iface);
+        
+        Class superclass = klass.getSuperclass();
+        if(!result && superclass != null) {
+            result |= isImplement(superclass, iface);
+        }
+        
+        return result;
+    }
 } //TopiaSecurityUtil