Github user necouchman commented on a diff in the pull request:
https://github.com/apache/incubator-guacamole-client/pull/184#discussion_r133609979
--- Diff:
guacamole/src/main/java/org/apache/guacamole/rest/event/ListenerService.java ---
@@ -0,0 +1,142 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+package org.apache.guacamole.rest.event;
+
+import com.google.inject.Inject;
+import org.apache.guacamole.GuacamoleException;
+import org.apache.guacamole.extension.ListenerProvider;
+import org.apache.guacamole.net.event.AuthenticationFailureEvent;
+import org.apache.guacamole.net.event.AuthenticationSuccessEvent;
+import org.apache.guacamole.net.event.TunnelCloseEvent;
+import org.apache.guacamole.net.event.TunnelConnectEvent;
+import
org.apache.guacamole.net.event.listener.AuthenticationFailureListener;
+import
org.apache.guacamole.net.event.listener.AuthenticationSuccessListener;
+import org.apache.guacamole.net.event.listener.TunnelCloseListener;
+import org.apache.guacamole.net.event.listener.TunnelConnectListener;
+
+import java.util.List;
+
+/**
+ * A service used to notify listeners registered by extensions when events
of
+ * interest occur.
+ *
+ * @author Carl Harris
+ */
+public class ListenerService implements ListenerProvider {
+
+ @Inject
+ private List<ListenerProvider> listeners;
+
+ /**
+ * Notifies all bound listeners of an authentication success event.
Listeners
+ * are allowed to veto a successful authentication by returning false
from the
+ * listener method. Regardless of whether a particular listener
rejects the
+ * successful authentication, all listeners are notified.
+ * @param e
+ * The AuthenticationSuccessEvent describing the successful
authentication
+ * that just occurred.
+ *
+ * @return
+ * false if any bound listener returns false, else true
+ *
+ * @throws GuacamoleException
+ * If any bound listener throws this exception. If a listener
throws an exception
+ * some listeners may not receive the authentication success
event notification.
+ */
+ @Override
+ public boolean authenticationSucceeded(AuthenticationSuccessEvent e)
+ throws GuacamoleException {
+ boolean result = true;
+ for (AuthenticationSuccessListener listener : listeners) {
+ result = result && listener.authenticationSucceeded(e);
+ }
+ return result;
+ }
+
+ /**
+ * Notifies all bound listeners of an authentication failure event.
+ *
+ * @param e
+ * The AuthenticationSuccessEvent describing the authentication
failure
+ * that just occurred.
+ *
+ * @throws GuacamoleException
+ * If any bound listener throws this exception. If a listener
throws an exception
+ * some listeners may not receive the authentication failure
event notification.
+ */
+ @Override
+ public void authenticationFailed(AuthenticationFailureEvent e)
+ throws GuacamoleException {
+ for (AuthenticationFailureListener listener : listeners) {
+ listener.authenticationFailed(e);
+ }
+ }
+
+ /**
+ * Notifies all bound listeners of an tunnel connected event. Listeners
+ * are allowed to veto a tunnel connection by returning false from the
+ * listener method. Regardless of whether a particular listener
rejects the
+ * tunnel connection, all listeners are notified.
+ * @param e
--- End diff --
Style: add line spacing here.
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