content: /*
   * Copyright 2013 Agorava
   *
   * 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.agorava.api.oauth;
  
  import javax.inject.Qualifier;
  import java.lang.annotation.Documented;
  import java.lang.annotation.Retention;
  import java.lang.annotation.Target;
  
  import static java.lang.annotation.ElementType.FIELD;
  import static java.lang.annotation.ElementType.METHOD;
  import static java.lang.annotation.ElementType.PARAMETER;
  import static java.lang.annotation.ElementType.TYPE;
  import static java.lang.annotation.RetentionPolicy.RUNTIME;
  
  /**
   * Qualifier to distinguish different implementations of services or helpers regarding OAuth version or OAuth 2.0 flavor
   *
   * @author Antoine Sabot-Durand
   */
  @Qualifier
  @Target({TYPE, METHOD, PARAMETER, FIELD})
  @Retention(RUNTIME)
  @Documented
  public @interface OAuth {
  
      /**
       * @return flavor of OAuth to distinguish
       */
      OAuthVersion value();
  
      /**
       * The different values of OAuth
       *
       * @author Antoine Sabot-Durand
       */
      enum OAuthVersion {
  
          /**
           * Value for OAuth 1.0a
           *
           * @see <a href="https://datatracker.ietf.org/doc/rfc5849/">OAuth 1.0a RFC</a>
           */
          ONE("1.0"),
  
          /**
           * Value for OAuth 2.0 draft 11
           * Implementation used in code coming from Scribe
           *
           * @see <a href="http://tools.ietf.org/html/draft-ietf-oauth-v2-11">OAuth 2.0 RFC draft 11</a>
           */
          TWO_DRAFT_11("2.0"),
  
          /**
           * Value OAuth 2.0 final, RFC 6749
           *
           * @see <a href="https://datatracker.ietf.org/doc/rfc6749/">OAuth 2.0 RFC</a>
           */
          TWO_FINAL("2.0"),
  
          /**
           * available for third party developer
           */
          OTHER("other");
  
          private final String label;
  
          OAuthVersion(String label) {
              this.label = label;
          }
  
          /**
           * @return label associated with current value
           */
          public String getLabel() {
              return label;
          }
      }
  }
  