/*
    *   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.directory.api.ldap.extras.extended.ads_impl.startTls;
  
  
  import org.apache.directory.api.asn1.DecoderException;
  import org.apache.directory.api.ldap.codec.api.ExtendedOperationFactory;
  import org.apache.directory.api.ldap.codec.api.ExtendedResponseDecorator;
  import org.apache.directory.api.ldap.codec.api.LdapApiService;
  import org.apache.directory.api.ldap.extras.extended.startTls.StartTlsRequest;
  import org.apache.directory.api.ldap.extras.extended.startTls.StartTlsRequestImpl;
  import org.apache.directory.api.ldap.extras.extended.startTls.StartTlsResponse;
  import org.apache.directory.api.ldap.extras.extended.startTls.StartTlsResponseImpl;
  import org.apache.directory.api.ldap.model.message.ExtendedRequest;
  import org.apache.directory.api.ldap.model.message.ExtendedResponse;
  
  
  /**
   * An {@link ExtendedOperationFactory} for creating SartTls extended reques/response 
   * pairs.
   *
   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
   */
  public class StartTlsFactory implements ExtendedOperationFactory
  {
      private LdapApiService codec;
  
  
      /**
       * Creates a new instance of StartTlsFactory.
       *
       * @param codec The codec for this factory.
       */
      public StartTlsFactory( LdapApiService codec )
      {
          this.codec = codec;
      }
  
  
      /**
       * {@inheritDoc}
       */
      @Override
      public String getOid()
      {
          return StartTlsRequest.EXTENSION_OID;
      }
  
  
      /**
       * {@inheritDoc}
       */
      @Override
      public StartTlsResponse newResponse( byte[] encodedValue ) throws DecoderException
      {
          StartTlsResponseDecorator response = new StartTlsResponseDecorator( codec,
              new StartTlsResponseImpl() );
          response.setResponseValue( encodedValue );
          return response;
      }
  
  
      /**
       * {@inheritDoc}
       */
      @Override
      public StartTlsRequest newRequest( byte[] value )
      {
          StartTlsRequestDecorator req = new StartTlsRequestDecorator( codec, new StartTlsRequestImpl() );
  
          if ( value != null )
          {
              req.setRequestValue( value );
          }
  
          return req;
      }
  
  
      /**
       * {@inheritDoc}
       */
     @Override
     public StartTlsRequestDecorator decorate( ExtendedRequest modelRequest )
     {
         if ( modelRequest instanceof StartTlsRequestDecorator )
         {
             return ( StartTlsRequestDecorator ) modelRequest;
         }
 
         return new StartTlsRequestDecorator( codec, ( StartTlsRequest ) modelRequest );
     }
 
 
     /**
      * {@inheritDoc}
      */
     @Override
     public StartTlsResponseDecorator decorate( ExtendedResponse decoratedResponse )
     {
         if ( decoratedResponse instanceof StartTlsResponseDecorator )
         {
             return ( StartTlsResponseDecorator ) decoratedResponse;
         }
 
         if ( decoratedResponse instanceof StartTlsResponse )
         {
             return new StartTlsResponseDecorator( codec, ( StartTlsResponse ) decoratedResponse );
         }
 
         // It's an opaque extended operation
         @SuppressWarnings("unchecked")
         ExtendedResponseDecorator<ExtendedResponse> response = ( ExtendedResponseDecorator<ExtendedResponse> ) decoratedResponse;
 
         // Decode the response, as it's an opaque operation
         StartTlsResponse startTlsResponse = new StartTlsResponseImpl( response.getMessageId() );
         
         startTlsResponse.getLdapResult().setResultCode( response.getLdapResult().getResultCode() );
         startTlsResponse.getLdapResult().setDiagnosticMessage( response.getLdapResult().getDiagnosticMessage() );
         return new StartTlsResponseDecorator( codec, new StartTlsResponseImpl() );
     }
 }