/* (non-Javadoc)
   * @see uk.ac.ox.oucs.oxam.logic.PaperFileService#deposit(uk.ac.ox.oucs.oxam.logic.PaperFile, uk.ac.ox.oucs.oxam.logic.Callback)
   */
  public void deposit(PaperFile paperFile, InputStream in) {
    PaperFileImpl impl = castToImpl(paperFile);
    String path = impl.getPath();
    ContentResourceEdit resource = null;
    try {

      try {
        contentHostingService.checkResource(path);
        resource = contentHostingService.editResource(path);
        // Ignore PermissionException, IdUnusedException, TypeException
        // As they are too serious to continue.
      } catch (IdUnusedException iue) {
        // Will attempt to create containing folders.

        resource = contentHostingService.addResource(path);
        // Like the basename function.
        String filename = StringUtils.substringAfterLast(path, "/");
        ResourceProperties props = resource.getPropertiesEdit();
        props.addProperty(ResourceProperties.PROP_DISPLAY_NAME, filename);
        resource.setContentType(mimeTypes.getContentType(filename));
      }
      resource.setContent(in);
      contentHostingService.commitResource(resource, NotificationService.NOTI_NONE);
      LOG.debug("Sucessfully copied file to: " + path);
    } catch (OverQuotaException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (ServerOverloadException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (PermissionException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (InUseException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (TypeException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (IdUsedException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (IdInvalidException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (InconsistentException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } finally {
      // Close the stream here as this is where it's created.
      if (resource.isActiveEdit()) {
        contentHostingService.cancelResource(resource);
      }
    }
  }
 public InputStream getInputStream(PaperFile paperFile) {
   PaperFileImpl impl = castToImpl(paperFile);
   String path = impl.getPath();
   try {
     ContentResource resource = contentHostingService.getResource(path);
     return resource.streamContent();
   } catch (Exception e) {
     LOG.info("Failed to get stream for: " + path);
   }
   return null;
 }
 /* (non-Javadoc)
  * @see uk.ac.ox.oucs.oxam.logic.PaperFileService#exists(uk.ac.ox.oucs.oxam.logic.PaperFile)
  */
 public boolean exists(PaperFile paperFile) {
   PaperFileImpl impl = castToImpl(paperFile);
   String path = impl.getPath();
   try {
     contentHostingService.checkResource(path);
     return true;
   } catch (PermissionException e) {
     LOG.warn("Problem checking resource: " + path + " " + e.getMessage());
   } catch (IdUnusedException e) {
     // Expected.
   } catch (TypeException e) {
     LOG.error("Wrong sort of resource at path: " + path + " " + e.getMessage());
   }
   return false;
 }