clear cache only on a post event

scm-core/src/main/java/sonia/scm/HandlerEvent.java

@@ -44,33 +44,75 @@ public enum HandlerEvent
   /**
    * After a new object is stored by a handler.
    */
-  CREATE,
+  CREATE(true),
 
   /**
    * After a object is modified by a handler.
    */
-  MODIFY,
+  MODIFY(true),
 
   /**
    * After a object is removed by a handler.
    */
-  DELETE,
+  DELETE(true),
 
   /**
    * Before a new object is stored by a handler.
    * @since 1.16
    */
-  BEFORE_CREATE,
+  BEFORE_CREATE(false),
 
   /**
    * Before a object is modified by a handler.
    * @since 1.16
    */
-  BEFORE_MODIFY,
+  BEFORE_MODIFY(false),
 
   /**
    * Before a object is removed by a handler.
    * @since 1.16
    */
-  BEFORE_DELETE
+  BEFORE_DELETE(false);
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param post
+   */
+  private HandlerEvent(boolean post)
+  {
+    this.post = post;
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Returns true if the event is fired after the action is occurred.
+   *
+   *
+   * @return true if the event is fired after the action is occurred
+   * @since 1.21
+   */
+  public boolean isPost()
+  {
+    return post;
+  }
+
+  /**
+   * Returns true if the event is fired before the action is occurred.
+   *
+   *
+   * @return true if the event is fired before the action is occurred
+   * @since 1.21
+   */
+  public boolean isPre()
+  {
+    return !post;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private boolean post;
 }

scm-webapp/src/main/java/sonia/scm/security/ScmRealm.java

@@ -158,6 +158,9 @@ public class ScmRealm extends AuthorizingRealm
   @Override
   public void onEvent(Repository repository, HandlerEvent event)
   {
+    if (event.isPost())
+    {
+
       if (logger.isDebugEnabled())
       {
         logger.debug("clear cache, because repository {} has changed",
@@ -166,6 +169,7 @@ public class ScmRealm extends AuthorizingRealm
 
       cache.clear();
     }
+  }
 
   /**
    * Method description
@@ -176,6 +180,8 @@ public class ScmRealm extends AuthorizingRealm
    */
   @Override
   public void onEvent(User user, HandlerEvent event)
+  {
+    if (event.isPost())
     {
       if (logger.isDebugEnabled())
       {
@@ -186,6 +192,7 @@ public class ScmRealm extends AuthorizingRealm
 
       cache.remove(user.getId());
     }
+  }
 
   /**
    * Method description