/*
    * 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.chemistry.opencmis.server.impl.atompub;
  
  import org.apache.chemistry.opencmis.commons.data.Acl;
  import org.apache.chemistry.opencmis.commons.enums.AclPropagation;
  import org.apache.chemistry.opencmis.commons.exceptions.CmisInvalidArgumentException;
  import org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException;
  import org.apache.chemistry.opencmis.commons.impl.Constants;
  import static org.apache.chemistry.opencmis.commons.impl.Converter.convert;
  import org.apache.chemistry.opencmis.commons.impl.JaxBHelper;
  import org.apache.chemistry.opencmis.commons.impl.jaxb.CmisAccessControlListType;
  import org.apache.chemistry.opencmis.commons.server.CallContext;
  import org.apache.chemistry.opencmis.commons.server.CmisService;
  import static org.apache.chemistry.opencmis.server.shared.HttpUtils.getBooleanParameter;
  import static org.apache.chemistry.opencmis.server.shared.HttpUtils.getEnumParameter;
  import static org.apache.chemistry.opencmis.server.shared.HttpUtils.getStringParameter;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import javax.xml.bind.JAXBElement;
  import javax.xml.bind.Unmarshaller;
  
  
  /**
   * ACL Service operations.
   */
  public class AclService
  {
      private AclService(  )
      {
      }
  
      /**
       * Get ACL.
       */
      public static void getAcl( CallContext context, CmisService service, String repositoryId,
          HttpServletRequest request, HttpServletResponse response )
          throws Exception
      {
          // get parameters
          String objectId = getStringParameter( request, Constants.PARAM_ID );
          Boolean onlyBasicPermissions = getBooleanParameter( request, Constants.PARAM_ONLY_BASIC_PERMISSIONS );
  
          // execute
          Acl acl = service.getAcl( repositoryId, objectId, onlyBasicPermissions, null );
  
          if ( acl == null )
          {
              throw new CmisRuntimeException( "ACL is null!" );
          }
  
          // set headers
          response.setStatus( HttpServletResponse.SC_OK );
          response.setContentType( Constants.MEDIATYPE_ACL );
  
          // write XML
          AclDocument aclDocument = new AclDocument(  );
          aclDocument.writeAcl( acl, response.getOutputStream(  ) );
      }
  
      /**
       * Apply ACL.
       */
      public static void applyAcl( CallContext context, CmisService service, String repositoryId,
          HttpServletRequest request, HttpServletResponse response )
          throws Exception
      {
          // get parameters
          String objectId = getStringParameter( request, Constants.PARAM_ID );
          AclPropagation aclPropagation = getEnumParameter( request, Constants.PARAM_ACL_PROPAGATION, AclPropagation.class );
  
          Object aclRequest = null;
  
          try
          {
              Unmarshaller u = JaxBHelper.createUnmarshaller(  );
              aclRequest = u.unmarshal( request.getInputStream(  ) );
          }
          catch ( Exception e )
          {
              throw new CmisInvalidArgumentException( "Invalid ACL request: " + e, e );
         }
 
         if ( !( aclRequest instanceof JAXBElement<?> ) )
         {
             throw new CmisInvalidArgumentException( "Not an ACL document!" );
         }
 
         if ( !( ( (JAXBElement<?>) aclRequest ).getValue(  ) instanceof CmisAccessControlListType ) )
         {
             throw new CmisInvalidArgumentException( "Not an ACL document!" );
         }
 
         Acl aces = convert( (CmisAccessControlListType) ( (JAXBElement<?>) aclRequest ).getValue(  ), null );
 
         // execute
         Acl acl = service.applyAcl( repositoryId, objectId, aces, aclPropagation );
 
         // set headers
         response.setStatus( HttpServletResponse.SC_CREATED );
         response.setContentType( Constants.MEDIATYPE_ACL );
 
         // write XML
         AclDocument aclDocument = new AclDocument(  );
         aclDocument.writeAcl( acl, response.getOutputStream(  ) );
     }
 }