/*
    *  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
    *  
   *    https://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.directory.api.ldap.extras.extended.whoAmI;
  
  
  import org.apache.directory.api.ldap.model.message.AbstractExtendedResponse;
  import org.apache.directory.api.ldap.model.message.ResultCodeEnum;
  import org.apache.directory.api.ldap.model.name.Dn;
  import org.apache.directory.api.util.Strings;
  
  
  /**
   * The RFC 4532 WhoAmI response :
   * 
   * <pre>
   * authzid OCTET STRING OPTIONAL
   * </pre>
   * 
   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
   */
  public class WhoAmIResponseImpl extends AbstractExtendedResponse implements WhoAmIResponse
  {
      /** The authzid */
      private byte[] authzId;
      
      /** The authzId when it's a DN */
      private Dn dn;
      
      /** The authzId when it's a userId */
      private String userId;
  
      
      /**
       * Create a new instance for the WhoAmI response
       * @param messageId The Message ID
       * @param rcode The result code
       * @param diagnosticMessage The diagnostic message
       */
      public WhoAmIResponseImpl( int messageId, ResultCodeEnum rcode, String diagnosticMessage )
      {
          super( messageId, null );
  
          super.getLdapResult().setMatchedDn( null );
          super.getLdapResult().setResultCode( rcode );
          super.getLdapResult().setDiagnosticMessage( diagnosticMessage );
      }
  
  
      /**
       * Create a new instance for the WhoAmI response
       * @param messageId The Message ID
       * @param rcode The result code
       */
      public WhoAmIResponseImpl( int messageId, ResultCodeEnum rcode )
      {
          super( messageId, EXTENSION_OID );
  
          super.getLdapResult().setMatchedDn( null );
          super.getLdapResult().setResultCode( rcode );
      }
  
  
      /**
       * Instantiates a new WhoAmI response.
       *
       * @param messageId the message id
       */
      public WhoAmIResponseImpl( int messageId )
      {
          super( messageId, null );
          super.getLdapResult().setMatchedDn( null );
          super.getLdapResult().setResultCode( ResultCodeEnum.SUCCESS );
      }
  
  
      /**
       * Instantiates a new WhoAmI response.
       */
      public WhoAmIResponseImpl()
      {
          super( EXTENSION_OID );
          ldapResult.setMatchedDn( null );
         ldapResult.setResultCode( ResultCodeEnum.SUCCESS );
     }
 
 
     /**
      * {@inheritDoc}
      */
     @Override
     public byte[] getAuthzId()
     {
         return authzId;
     }
 
 
     /**
      * Set the authzId value
      * 
      * @param authzId the value to store
      */
     public void setAuthzId( byte[] authzId )
     {
         this.authzId = authzId;
     }
 
 
     /**
      * {@inheritDoc}
      */
     @Override
     public boolean isDnAuthzId()
     {
         return dn != null;
     }
 
 
     /**
      * {@inheritDoc}
      */
     @Override
     public boolean isUserAuthzId()
     {
         return userId != null;
     }
 
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String getAuthzIdString()
     {
         return Strings.utf8ToString( authzId );
     }
 
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String getUserId()
     {
         return userId;
     }
 
 
     /**
      * Set the userId
      * 
      * @param userId The User ID
      */
     public void setUserId( String userId )
     {
         this.userId = userId;
     }
 
 
     /**
      * {@inheritDoc}
      */
     @Override
     public Dn getDn()
     {
         return dn;
     }
 
 
     /**
      * Set the DN
      * 
      * @param dn The DN to set
      */
     public void setDn( Dn dn )
     {
         this.dn = dn;
     }
 
 
     /**
      * @see Object#toString()
      */
     @Override
     public String toString()
     {
         StringBuilder sb = new StringBuilder();
 
         sb.append( "WhoAmI Extended Response :" );
         sb.append( "\n    authzid : " );
 
         if ( authzId != null )
         {
             if ( isDnAuthzId() )
             {
                 sb.append( "DN: " ).append( getDn() );
             }
             else
             {
                 sb.append( "UserId: " ).append( getUserId() );
             }
         }
         else
         {
             sb.append( "null" );
         }
 
         return sb.toString();
     }
 }