/**
    *       Copyright 2010 Newcastle University
    *
    *          http://research.ncl.ac.uk/smart/
    *
    * 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.amber.oauth2.client.response;
  
  import java.util.Map;
  
  import javax.servlet.http.HttpServletRequest;
  
  import org.apache.amber.oauth2.client.validator.CodeTokenValidator;
  import org.apache.amber.oauth2.client.validator.CodeValidator;
  import org.apache.amber.oauth2.client.validator.OAuthClientValidator;
  import org.apache.amber.oauth2.client.validator.TokenValidator;
  import org.apache.amber.oauth2.common.OAuth;
  import org.apache.amber.oauth2.common.exception.OAuthProblemException;
  import org.apache.amber.oauth2.common.utils.OAuthUtils;
  
  
  /**
   *
   *
   *
   */
  public class OAuthAuthzResponse extends OAuthClientResponse {
  
      private HttpServletRequest request;
  
      protected OAuthAuthzResponse(HttpServletRequest request, OAuthClientValidator validator) {
          this.request = request;
          Map<String, String[]> params = request.getParameterMap();
          for (Map.Entry<String, String[]> entry : params.entrySet()) {
              String key = entry.getKey();
              String[] values = entry.getValue();
              if (!OAuthUtils.hasEmptyValues(values)) {
                  parameters.put(key, values[0]);
              }
          }
          this.validator = validator;
      }
  
      public static OAuthAuthzResponse oauthCodeAuthzResponse(HttpServletRequest request)
          throws OAuthProblemException {
          OAuthAuthzResponse response = new OAuthAuthzResponse(request, new CodeValidator());
          response.validate();
          return response;
      }
  
      public static OAuthAuthzResponse oAuthCodeAndTokenAuthzResponse(HttpServletRequest request)
          throws OAuthProblemException {
          OAuthAuthzResponse response = new OAuthAuthzResponse(request, new CodeTokenValidator());
          response.validate();
          return response;
      }
  
      public static OAuthAuthzResponse oauthTokenAuthzResponse(HttpServletRequest request)
          throws OAuthProblemException {
          OAuthAuthzResponse response = new OAuthAuthzResponse(request, new TokenValidator());
          response.validate();
          return response;
      }
  
      public String getAccessToken() {
          return getParam(OAuth.OAUTH_ACCESS_TOKEN);
      }
  
      public Long getExpiresIn() {
          String value = getParam(OAuth.OAUTH_EXPIRES_IN);
          return value == null? null: Long.valueOf(value);
      }
  
      public String getScope() {
          return getParam(OAuth.OAUTH_SCOPE);
      }
  
      public String getCode() {
          return getParam(OAuth.OAUTH_CODE);
      }
  
      public String getState() {
          return getParam(OAuth.OAUTH_STATE);
      }
 
     public HttpServletRequest getRequest() {
         return request;
     }
 
     protected void setBody(String body) {
         this.body = body;
     }
 
     protected void setContentType(String contentType) {
         this.contentType = contentType;
     }
 
     protected void setResponseCode(int responseCode) {
         this.responseCode = responseCode;
     }
 
 }