// Create workflow start provenance message
  protected void recordStart(Context context, Item myitem)
      throws SQLException, IOException, AuthorizeException {
    // get date
    DCDate now = DCDate.getCurrent();

    // Create provenance description
    String provmessage;

    if (myitem.getSubmitter() != null) {
      provmessage =
          "Submitted by "
              + myitem.getSubmitter().getFullName()
              + " ("
              + myitem.getSubmitter().getEmail()
              + ") on "
              + now.toString()
              + "\n";
    } else
    // null submitter
    {
      provmessage = "Submitted by unknown (probably automated) on" + now.toString() + "\n";
    }

    // add sizes and checksums of bitstreams
    provmessage += installItemService.getBitstreamProvenanceMessage(context, myitem);

    // Add message to the DC
    itemService.addMetadata(
        context, myitem, MetadataSchema.DC_SCHEMA, "description", "provenance", "en", provmessage);
    itemService.update(context, myitem);
  }
  // Record approval provenance statement
  protected void recordApproval(Context context, BasicWorkflowItem workflowItem, EPerson e)
      throws SQLException, IOException, AuthorizeException {
    Item item = workflowItem.getItem();

    // Get user's name + email address
    String usersName = getEPersonName(e);

    // Get current date
    String now = DCDate.getCurrent().toString();

    // Here's what happened
    String provDescription =
        "Approved for entry into archive by " + usersName + " on " + now + " (GMT) ";

    // add bitstream descriptions (name, size, checksums)
    provDescription += installItemService.getBitstreamProvenanceMessage(context, item);

    // Add to item as a DC field
    itemService.addMetadata(
        context,
        item,
        MetadataSchema.DC_SCHEMA,
        "description",
        "provenance",
        "en",
        provDescription);
    itemService.update(context, item);
  }
  @Override
  public WorkspaceItem sendWorkflowItemBackSubmission(
      Context context,
      BasicWorkflowItem workflowItem,
      EPerson ePerson,
      String provenancePrefix,
      String rejection_message)
      throws SQLException, AuthorizeException, IOException {

    int oldState = workflowItem.getState();
    // authorize a DSpaceActions.REJECT
    // stop workflow
    taskListItemService.deleteByWorkflowItem(context, workflowItem);

    // rejection provenance
    Item myitem = workflowItem.getItem();

    // Get current date
    String now = DCDate.getCurrent().toString();

    // Get user's name + email address
    String usersName = getEPersonName(ePerson);

    // Here's what happened
    String provDescription =
        "Rejected by " + usersName + ", reason: " + rejection_message + " on " + now + " (GMT) ";

    // Add to item as a DC field
    itemService.addMetadata(
        context,
        myitem,
        MetadataSchema.DC_SCHEMA,
        "description",
        "provenance",
        "en",
        provDescription);
    itemService.update(context, myitem);

    // convert into personal workspace
    WorkspaceItem wsi = returnToWorkspace(context, workflowItem);

    // notify that it's been rejected
    notifyOfReject(context, workflowItem, ePerson, rejection_message);

    log.info(
        LogManager.getHeader(
            context,
            "reject_workflow",
            "workflow_item_id="
                + workflowItem.getID()
                + "item_id="
                + workflowItem.getItem().getID()
                + "collection_id="
                + workflowItem.getCollection().getID()
                + "eperson_id="
                + ePerson.getID()));

    logWorkflowEvent(
        context,
        wsi.getItem(),
        workflowItem,
        ePerson,
        WFSTATE_SUBMIT,
        null,
        wsi.getCollection(),
        oldState,
        null);

    return wsi;
  }
  @Override
  public WorkspaceItem sendWorkflowItemBackSubmission(
      Context context, XmlWorkflowItem wi, EPerson e, String provenance, String rejection_message)
      throws SQLException, AuthorizeException, IOException {

    String workflowID = null;
    String currentStepId = null;
    String currentActionConfigId = null;
    ClaimedTask claimedTask = claimedTaskService.findByWorkflowIdAndEPerson(context, wi, e);
    if (claimedTask != null) {
      // Log it
      workflowID = claimedTask.getWorkflowID();
      currentStepId = claimedTask.getStepID();
      currentActionConfigId = claimedTask.getActionID();
    }
    context.turnOffAuthorisationSystem();

    // rejection provenance
    Item myitem = wi.getItem();

    // Get current date
    String now = DCDate.getCurrent().toString();

    // Get user's name + email address
    String usersName = getEPersonName(e);

    // Here's what happened
    String provDescription =
        provenance
            + " Rejected by "
            + usersName
            + ", reason: "
            + rejection_message
            + " on "
            + now
            + " (GMT) ";

    // Add to item as a DC field
    itemService.addMetadata(
        context,
        myitem,
        MetadataSchema.DC_SCHEMA,
        "description",
        "provenance",
        "en",
        provDescription);

    // Clear any workflow schema related metadata
    itemService.clearMetadata(
        context, myitem, WorkflowRequirementsService.WORKFLOW_SCHEMA, Item.ANY, Item.ANY, Item.ANY);

    itemService.update(context, myitem);

    // convert into personal workspace
    WorkspaceItem wsi = returnToWorkspace(context, wi);

    // notify that it's been rejected
    notifyOfReject(context, wi, e, rejection_message);
    log.info(
        LogManager.getHeader(
            context,
            "reject_workflow",
            "workflow_item_id="
                + wi.getID()
                + "item_id="
                + wi.getItem().getID()
                + "collection_id="
                + wi.getCollection().getID()
                + "eperson_id="
                + e.getID()));

    logWorkflowEvent(context, workflowID, currentStepId, currentActionConfigId, wi, e, null, null);

    context.restoreAuthSystemState();
    return wsi;
  }