/*
    * 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.ObjectData;
  import org.apache.chemistry.opencmis.commons.enums.VersioningState;
  import org.apache.chemistry.opencmis.commons.exceptions.CmisRuntimeException;
  import org.apache.chemistry.opencmis.commons.impl.Constants;
  import org.apache.chemistry.opencmis.commons.impl.UrlBuilder;
  import org.apache.chemistry.opencmis.commons.server.CallContext;
  import org.apache.chemistry.opencmis.commons.server.CmisService;
  import org.apache.chemistry.opencmis.commons.server.ObjectInfo;
  import static org.apache.chemistry.opencmis.server.impl.atompub.AtomPubUtils.RESOURCE_ENTRY;
  import static org.apache.chemistry.opencmis.server.impl.atompub.AtomPubUtils.compileBaseUrl;
  import static org.apache.chemistry.opencmis.server.impl.atompub.AtomPubUtils.compileUrl;
  import static org.apache.chemistry.opencmis.server.impl.atompub.AtomPubUtils.writeObjectEntry;
  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;
  
  
  /**
   * MultiFiling Service operations.
   */
  public class MultiFilingService
  {
      private MultiFilingService(  )
      {
      }
  
      /**
       * Remove object from folder.
       */
      public static void removeObjectFromFolder( CallContext context, CmisService service, String repositoryId,
          HttpServletRequest request, HttpServletResponse response )
          throws Exception
      {
          // get parameters
          String removeFrom = getStringParameter( request, Constants.PARAM_REMOVE_FROM );
  
          AtomEntryParser parser = new AtomEntryParser( context.getTempDirectory(  ), context.getMemoryThreshold(  ) );
          parser.setIgnoreAtomContentSrc( true ); // needed for some clients
          parser.parse( request.getInputStream(  ) );
  
          String objectId = parser.getId(  );
  
          if ( ( objectId == null ) && ( removeFrom == null ) )
          {
              // create unfiled object
              createUnfiledObject( context, service, repositoryId, request, response, parser );
  
              return;
          }
  
          // execute
          service.removeObjectFromFolder( repositoryId, objectId, removeFrom, null );
  
          ObjectInfo objectInfo = service.getObjectInfo( repositoryId, objectId );
  
          if ( objectInfo == null )
          {
              throw new CmisRuntimeException( "Object Info is missing!" );
          }
  
          ObjectData object = objectInfo.getObject(  );
  
          if ( object == null )
          {
              throw new CmisRuntimeException( "Object is null!" );
          }
  
          if ( object.getId(  ) == null )
          {
              throw new CmisRuntimeException( "Object Id is null!" );
          }
  
          // set headers
          UrlBuilder baseUrl = compileBaseUrl( request, repositoryId );
  
          response.setStatus( HttpServletResponse.SC_CREATED );
          response.setContentType( Constants.MEDIATYPE_ENTRY );
         response.setHeader( "Location", compileUrl( baseUrl, RESOURCE_ENTRY, object.getId(  ) ) );
 
         // write XML
         AtomEntry entry = new AtomEntry(  );
         entry.startDocument( response.getOutputStream(  ) );
         writeObjectEntry( service, entry, object, null, repositoryId, null, null, baseUrl, true );
         entry.endDocument(  );
     }
 
     /**
      * Create unfiled object.
      *
      * (Creation of unfiled objects via AtomPub is not defined in the CMIS 1.0
      * specification. This implementation follow the CMIS 1.1 draft.)
      */
     private static void createUnfiledObject( CallContext context, CmisService service, String repositoryId,
         HttpServletRequest request, HttpServletResponse response, AtomEntryParser parser )
         throws Exception
     {
         // get additional parameters
         VersioningState versioningState = getEnumParameter( request, Constants.PARAM_VERSIONIG_STATE,
                 VersioningState.class );
 
         // create
         String newObjectId = service.create( repositoryId, parser.getProperties(  ), null, parser.getContentStream(  ),
                 versioningState, parser.getPolicyIds(  ), null );
 
         ObjectInfo objectInfo = service.getObjectInfo( repositoryId, newObjectId );
 
         if ( objectInfo == null )
         {
             throw new CmisRuntimeException( "Object Info is missing!" );
         }
 
         ObjectData object = objectInfo.getObject(  );
 
         if ( object == null )
         {
             throw new CmisRuntimeException( "Object is null!" );
         }
 
         // set headers
         UrlBuilder baseUrl = compileBaseUrl( request, repositoryId );
 
         response.setStatus( HttpServletResponse.SC_CREATED );
         response.setContentType( Constants.MEDIATYPE_ENTRY );
         response.setHeader( "Location", compileUrl( baseUrl, RESOURCE_ENTRY, newObjectId ) );
 
         // write XML
         AtomEntry entry = new AtomEntry(  );
         entry.startDocument( response.getOutputStream(  ) );
         writeObjectEntry( service, entry, object, null, repositoryId, null, null, baseUrl, true );
         entry.endDocument(  );
     }
 }