/*
    * 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.myfaces.tobago.internal.lifecycle;
  
  import javax.faces.FacesException;
  import javax.faces.application.Application;
  import javax.faces.application.ViewHandler;
  import javax.faces.component.UIViewRoot;
  import javax.faces.context.FacesContext;
  import javax.faces.event.PhaseId;
  import javax.servlet.http.HttpServletResponse;
  import java.io.IOException;
  
  /**
   * Implements the lifecycle as described in Spec. 1.0 PFD Chapter 2
   * <p/>
   * render response phase (JSF Spec 2.2.6)
   */
  class RenderResponseExecutor implements PhaseExecutor {
  
    public boolean execute(FacesContext facesContext) {
      Application application = facesContext.getApplication();
      ViewHandler viewHandler = application.getViewHandler();
  
      try {
        final UIViewRoot viewRoot = facesContext.getViewRoot();
        if (viewRoot.getViewId() != null) {
          viewHandler.renderView(facesContext, viewRoot);
        } else {
          Object respObj = facesContext.getExternalContext().getResponse();
          if (respObj instanceof HttpServletResponse) {
              HttpServletResponse respHttp = (HttpServletResponse) respObj;
              respHttp.sendError(HttpServletResponse.SC_NOT_FOUND);
              facesContext.responseComplete();
          }
        }
      } catch (IOException e) {
        throw new FacesException(e.getMessage(), e);
      }
      return false;
    }
  
    public PhaseId getPhase() {
      return PhaseId.RENDER_RESPONSE;
    }
  }