//
   //  ========================================================================
   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
   //  ------------------------------------------------------------------------
   //  All rights reserved. This program and the accompanying materials
   //  are made available under the terms of the Eclipse Public License v1.0
   //  and Apache License v2.0 which accompanies this distribution.
   //
   //      The Eclipse Public License is available at
  //      http://www.eclipse.org/legal/epl-v10.html
  //
  //      The Apache License v2.0 is available at
  //      http://www.opensource.org/licenses/apache2.0.php
  //
  //  You may elect to redistribute this code under either of these licenses.
  //  ========================================================================
  //
  
  package org.eclipse.jetty.websocket.jsr356.client;
  
  import javax.websocket.ClientEndpoint;
  import javax.websocket.ClientEndpointConfig;
  import javax.websocket.DeploymentException;
  
  import org.eclipse.jetty.websocket.api.WebSocketPolicy;
  import org.eclipse.jetty.websocket.common.events.EventDriver;
  import org.eclipse.jetty.websocket.common.events.EventDriverImpl;
  import org.eclipse.jetty.websocket.jsr356.annotations.JsrEvents;
  import org.eclipse.jetty.websocket.jsr356.endpoints.EndpointInstance;
  import org.eclipse.jetty.websocket.jsr356.endpoints.JsrAnnotatedEventDriver;
  
  /**
   * Event Driver for classes annotated with @{@link ClientEndpoint}
   */
  public class JsrClientEndpointImpl implements EventDriverImpl
  {
      @Override
      public EventDriver create(Object websocket, WebSocketPolicy policy) throws DeploymentException
      {
          if (!(websocket instanceof EndpointInstance))
          {
              throw new IllegalStateException(String.format("Websocket %s must be an %s",websocket.getClass().getName(),EndpointInstance.class.getName()));
          }
  
          EndpointInstance ei = (EndpointInstance)websocket;
          AnnotatedClientEndpointMetadata metadata = (AnnotatedClientEndpointMetadata)ei.getMetadata();
          JsrEvents<ClientEndpoint, ClientEndpointConfig> events = new JsrEvents<>(metadata);
  
          return new JsrAnnotatedEventDriver(policy,ei,events);
      }
  
      @Override
      public String describeRule()
      {
          return "class is annotated with @" + ClientEndpoint.class.getName();
      }
  
      @Override
      public boolean supports(Object websocket)
      {
          if (!(websocket instanceof EndpointInstance))
          {
              return false;
          }
  
          EndpointInstance ei = (EndpointInstance)websocket;
          Object endpoint = ei.getEndpoint();
  
          ClientEndpoint anno = endpoint.getClass().getAnnotation(ClientEndpoint.class);
          return (anno != null);
      }
  }