/*
    * Copyright 2012-2021 CodeLibs Project and the Others.
    *
    * Licensed 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.codelibs.fess.util;
  
  import org.codelibs.fess.exception.WebApiException;
  import org.lastaflute.web.util.LaRequestUtil;
  
  public final class WebApiUtil {
  
      private static final String WEB_API_EXCEPTION = "webApiException";
  
      private WebApiUtil() {
      }
  
      public static void setObject(final String name, final Object value) {
          LaRequestUtil.getRequest().setAttribute(name, value);
      }
  
      public static <T> T getObject(final String name) {
          @SuppressWarnings("unchecked")
          final T value = (T) LaRequestUtil.getRequest().getAttribute(name);
          return value;
      }
  
      public static void setError(final int statusCode, final String message) {
          LaRequestUtil.getRequest().setAttribute(WEB_API_EXCEPTION, new WebApiException(statusCode, message));
      }
  
      public static void setError(final int statusCode, final Exception e) {
          LaRequestUtil.getRequest().setAttribute(WEB_API_EXCEPTION, new WebApiException(statusCode, e));
      }
  
      public static void validate() {
          final WebApiException e = (WebApiException) LaRequestUtil.getRequest().getAttribute(WEB_API_EXCEPTION);
          if (e != null) {
              throw e;
          }
      }
  
  }