public void processRequest() throws Exception {
    FormProcessor fp = new FormProcessor(request);
    int itemId = fp.getInt(ITEM_ID);
    ItemDAO idao = new ItemDAO(sm.getDataSource());
    ItemFormMetadataDAO ifmdao = new ItemFormMetadataDAO(sm.getDataSource());
    CRFVersionDAO cvdao = new CRFVersionDAO(sm.getDataSource());
    CRFDAO cdao = new CRFDAO(sm.getDataSource());

    if (itemId == 0) {
      addPageMessage("Please choose an item first.");
      forwardPage(Page.ITEM_DETAIL);
      return;
    }
    ItemBean item = (ItemBean) idao.findByPK(itemId);
    ArrayList versions = idao.findAllVersionsByItemId(item.getId());
    ArrayList versionItems = new ArrayList();
    // finds each item metadata for each version
    for (int i = 0; i < versions.size(); i++) {
      Integer versionId = (Integer) versions.get(i);
      CRFVersionBean version = (CRFVersionBean) cvdao.findByPK(versionId.intValue());
      if (versionId != null && versionId.intValue() > 0) {
        ItemFormMetadataBean imfBean =
            ifmdao.findByItemIdAndCRFVersionId(item.getId(), versionId.intValue());
        imfBean.setCrfVersionName(version.getName());
        CRFBean crf = (CRFBean) cdao.findByPK(version.getCrfId());
        imfBean.setCrfName(crf.getName());
        versionItems.add(imfBean);
      }
    }
    request.setAttribute(VERSION_ITEMS, versionItems);
    request.setAttribute(ITEM_BEAN, item);
    forwardPage(Page.ITEM_DETAIL);
  }
  /**
   * createSPSSFile, added by tbh, 01/2009
   *
   * @param db
   * @param eb
   * @param currentstudyid
   * @param parentstudy
   * @return
   */
  public HashMap<String, Integer> createSPSSFile(
      DatasetBean db,
      ExtractBean eb2,
      StudyBean currentStudy,
      StudyBean parentStudy,
      long sysTimeBegin,
      String generalFileDir,
      SPSSReportBean answer,
      String generalFileDirCopy) {
    setUpResourceBundles();

    String SPSSFileName = db.getName() + "_data_spss.dat";
    String DDLFileName = db.getName() + "_ddl_spss.sps";
    String ZIPFileName = db.getName() + "_spss";

    SPSSVariableNameValidationBean svnvbean = new SPSSVariableNameValidationBean();
    answer.setDatFileName(SPSSFileName);
    // DatasetDAO dsdao = new DatasetDAO(ds);

    // create the extract bean here, tbh
    // ExtractBean eb = this.generateExtractBean(db, currentStudy,
    // parentStudy);

    // eb = dsdao.getDatasetData(eb, currentStudy.getId(),
    // parentStudy.getId());

    // eb.getMetadata();

    // eb.computeReport(answer);

    answer.setItems(eb2.getItemNames()); // set up items here to get
    // itemMetadata

    // set up response sets for each item here
    ItemDAO itemdao = new ItemDAO(ds);
    ItemFormMetadataDAO imfdao = new ItemFormMetadataDAO(ds);
    ArrayList items = answer.getItems();
    for (int i = 0; i < items.size(); i++) {
      DisplayItemHeaderBean dih = (DisplayItemHeaderBean) items.get(i);
      ItemBean item = dih.getItem();
      ArrayList metas = imfdao.findAllByItemId(item.getId());
      // for (int h = 0; h < metas.size(); h++) {
      // ItemFormMetadataBean ifmb = (ItemFormMetadataBean)
      // metas.get(h);
      // logger.info("group name found:
      // "+ifmb.getGroupLabel());
      // }
      // logger.info("crf versionname" +
      // meta.getCrfVersionName());
      item.setItemMetas(metas);
    }

    HashMap eventDescs = new HashMap<String, String>();

    eventDescs = eb2.getEventDescriptions();

    eventDescs.put("SubjID", resword.getString("study_subject_ID"));
    eventDescs.put("ProtocolID", resword.getString("protocol_ID_site_ID"));
    eventDescs.put("DOB", resword.getString("date_of_birth"));
    eventDescs.put("YOB", resword.getString("year_of_birth"));
    eventDescs.put("Gender", resword.getString("gender"));
    answer.setDescriptions(eventDescs);

    ArrayList generatedReports = new ArrayList<String>();
    try {
      // YW <<
      generatedReports.add(answer.getMetadataFile(svnvbean, eb2).toString());
      generatedReports.add(answer.getDataFile().toString());
      // YW >>
    } catch (IndexOutOfBoundsException i) {
      generatedReports.add(answer.getMetadataFile(svnvbean, eb2).toString());
      logger.debug("throw the error here");
    }

    long sysTimeEnd = System.currentTimeMillis() - sysTimeBegin;

    ArrayList titles = new ArrayList();
    // YW <<
    titles.add(DDLFileName);
    titles.add(SPSSFileName);
    // YW >>

    // create new createFile method that accepts array lists to
    // put into zip files
    int fId =
        this.createFile(
            ZIPFileName,
            titles,
            generalFileDir,
            generatedReports,
            db,
            sysTimeEnd,
            ExportFormatBean.TXTFILE,
            true);
    if (!"".equals(generalFileDirCopy)) {
      int fId2 =
          this.createFile(
              ZIPFileName,
              titles,
              generalFileDirCopy,
              generatedReports,
              db,
              sysTimeEnd,
              ExportFormatBean.TXTFILE,
              false);
    }
    // return DDLFileName;
    HashMap answerMap = new HashMap<String, Integer>();
    answerMap.put(DDLFileName, new Integer(fId));
    return answerMap;
  }
  @Override
  public void processRequest() throws Exception {
    FormProcessor fp = new FormProcessor(request);
    int studySubId = fp.getInt(STUDY_SUB_ID, true);
    int eventCRFId = fp.getInt(EVENT_CRF_ID);

    String action = request.getParameter("action");

    StudyEventDAO sedao = new StudyEventDAO(sm.getDataSource());
    StudySubjectDAO subdao = new StudySubjectDAO(sm.getDataSource());
    EventCRFDAO ecdao = new EventCRFDAO(sm.getDataSource());
    StudyDAO sdao = new StudyDAO(sm.getDataSource());

    if (eventCRFId == 0) {
      addPageMessage(respage.getString("please_choose_an_event_CRF_to_delete"));
      request.setAttribute("id", new Integer(studySubId).toString());
      forwardPage(Page.VIEW_STUDY_SUBJECT_SERVLET);
    } else {
      EventCRFBean eventCRF = (EventCRFBean) ecdao.findByPK(eventCRFId);

      StudySubjectBean studySub = (StudySubjectBean) subdao.findByPK(studySubId);
      request.setAttribute("studySub", studySub);

      // construct info needed on view event crf page
      CRFDAO cdao = new CRFDAO(sm.getDataSource());
      CRFVersionDAO cvdao = new CRFVersionDAO(sm.getDataSource());

      int crfVersionId = eventCRF.getCRFVersionId();
      CRFBean cb = cdao.findByVersionId(crfVersionId);
      eventCRF.setCrf(cb);

      CRFVersionBean cvb = (CRFVersionBean) cvdao.findByPK(crfVersionId);
      eventCRF.setCrfVersion(cvb);

      // then get the definition so we can call
      // DisplayEventCRFBean.setFlags
      int studyEventId = eventCRF.getStudyEventId();

      StudyEventBean event = (StudyEventBean) sedao.findByPK(studyEventId);

      int studyEventDefinitionId = sedao.getDefinitionIdFromStudyEventId(studyEventId);
      StudyEventDefinitionDAO seddao = new StudyEventDefinitionDAO(sm.getDataSource());
      StudyEventDefinitionBean sed =
          (StudyEventDefinitionBean) seddao.findByPK(studyEventDefinitionId);
      event.setStudyEventDefinition(sed);
      request.setAttribute("event", event);

      EventDefinitionCRFDAO edcdao = new EventDefinitionCRFDAO(sm.getDataSource());

      StudyBean study = (StudyBean) sdao.findByPK(studySub.getStudyId());
      EventDefinitionCRFBean edc =
          edcdao.findByStudyEventDefinitionIdAndCRFId(study, studyEventDefinitionId, cb.getId());

      DisplayEventCRFBean dec = new DisplayEventCRFBean();
      dec.setEventCRF(eventCRF);
      dec.setFlags(eventCRF, ub, currentRole, edc.isDoubleEntry());

      // find all item data
      ItemDataDAO iddao = new ItemDataDAO(sm.getDataSource());
      dnDao = new DiscrepancyNoteDAO(sm.getDataSource());
      ArrayList<ItemDataBean> itemData = iddao.findAllByEventCRFId(eventCRF.getId());
      request.setAttribute("items", itemData);

      if ("confirm".equalsIgnoreCase(action)) {

        request.setAttribute("displayEventCRF", dec);

        forwardPage(Page.DELETE_EVENT_CRF);
      } else {
        logger.info("submit to delete the event CRF from event");

        // OC-6303  Deleting Event CRF resets Show / Hide logic
        // delete records from DynamicItemForm and DynamicItemGroup
        getDynamicsItemFormMetadataDao().delete(eventCRFId);
        getDynamicsItemGroupMetadataDao().delete(eventCRFId);

        eventCRF.setOldStatus(eventCRF.getStatus());
        eventCRF.setStatus(Status.RESET);
        eventCRF.setUpdater(ub);
        ecdao.update(eventCRF);

        for (ItemDataBean itemdata : itemData) {
          // OC-6343 Rule behaviour must be reset if an Event CRF is deleted
          // delete the records from ruleActionRunLogDao
          getRuleActionRunLogDao().delete(itemdata.getId());

          // OC-6344 Notes & Discrepancies must be set to "closed" when event CRF is deleted
          // parentDiscrepancyNoteList is the list of the parent DNs records only
          ArrayList<DiscrepancyNoteBean> parentDiscrepancyNoteList =
              getDnDao().findParentNotesOnlyByItemData(itemdata.getId());
          for (DiscrepancyNoteBean parentDiscrepancyNote : parentDiscrepancyNoteList) {
            if (parentDiscrepancyNote.getResolutionStatusId()
                != 4) { // if the DN's resolution status is not set to Closed
              String description = resword.getString("dn_auto-closed_description");
              String detailedNotes = resword.getString("dn_auto_closed_detailed_notes");
              // create new DN record , new DN Map record , also update the parent record
              createDiscrepancyNoteBean(
                  description, detailedNotes, itemdata.getId(), study, ub, parentDiscrepancyNote);
            }
          }
          iddao = new ItemDataDAO(sm.getDataSource());
          ifmdao = new ItemFormMetadataDAO(sm.getDataSource());
          ItemDataBean idBean = (ItemDataBean) iddao.findByPK(itemdata.getId());

          ItemFormMetadataBean ifmBean =
              ifmdao.findByItemIdAndCRFVersionId(idBean.getItemId(), crfVersionId);

          // Updating Dn_item_data_map actovated column into false for the existing DNs
          ArrayList<DiscrepancyNoteBean> dnBeans =
              getDnDao().findExistingNotesForItemData(itemdata.getId());
          if (dnBeans.size() != 0) {
            DiscrepancyNoteBean dnBean = new DiscrepancyNoteBean();
            dnBean.setEntityId(itemdata.getId());
            dnBean.setActivated(false);
            getDnDao().updateDnMapActivation(dnBean);
          }

          // Default Values are not addressed

          itemdata.setValue("");
          itemdata.setOldStatus(itemdata.getStatus());
          itemdata.setOwner(ub);
          itemdata.setStatus(Status.AVAILABLE);
          itemdata.setUpdater(ub);
          iddao.updateUser(itemdata);
          iddao.update(itemdata);
        }
        // OC-6291 event_crf status change

        eventCRF.setOldStatus(eventCRF.getStatus());
        eventCRF.setStatus(Status.AVAILABLE);
        eventCRF.setUpdater(ub);
        ecdao.update(eventCRF);

        if (event.getSubjectEventStatus().isCompleted()
            || event.getSubjectEventStatus().isSigned()) {
          event.setSubjectEventStatus(SubjectEventStatus.DATA_ENTRY_STARTED);
          event.setUpdater(ub);
          sedao = new StudyEventDAO(sm.getDataSource());
          sedao.update(event);
        }

        String emailBody =
            respage.getString("the_event_CRF")
                + cb.getName()
                + respage.getString("has_been_deleted_from_the_event")
                + event.getStudyEventDefinition().getName()
                + ". "
                + respage.getString("has_been_deleted_from_the_event_cont");

        addPageMessage(emailBody);
        // sendEmail(emailBody);
        request.setAttribute("id", new Integer(studySubId).toString());
        forwardPage(Page.VIEW_STUDY_SUBJECT_SERVLET);
      }
    }
  }
  /**
   * Re-do calculations if funcs include changed item(s) and funcs are not included in the current
   * section. If calculation can not sucessfully redo, old value will be erased and "<erased>" will
   * be saved in database. <br>
   * The parameter 'itemdata' might be overwritten.
   *
   * @param itemGroupSizes
   * @param items
   * @param itemdata
   * @param oldItemdata
   * @param updatedData
   * @param sectionId
   * @return ArrayList<String> which records left_item_text of items who failed to be updated into
   *     database.
   */
  public ArrayList<String> redoCalculations(
      HashMap<String, ItemBean> items,
      HashMap<String, String> itemdata,
      TreeSet<String> changedItems,
      HashMap<Integer, TreeSet<Integer>> itemOrdinals,
      int sectionId) {
    ArrayList<String> updateFailedItems = new ArrayList<String>();
    if (itemdata == null) {
      logger.error("In ScoreCalculator redoCalculations(), itemdata is empty!");
      errors.add("In ScoreCalculator redoCalculations(), 'itemdata' map is empty!");
      return updateFailedItems;
    }
    if (changedItems == null) {
      logger.error("In ScoreCalculator redoCalculations(), 'changeItems' set is empty!");
      errors.add("In ScoreCalculator redoCalculations(), 'changeItems' set is empty!");
      return updateFailedItems;
    }
    ItemFormMetadataDAO ifmdao = new ItemFormMetadataDAO(sm.getDataSource());
    ItemDAO idao = new ItemDAO(sm.getDataSource());
    ItemDataDAO iddao = new ItemDataDAO(sm.getDataSource());

    NumberFormat nf = NumberFormat.getInstance();
    Parser parser = new Parser(items, itemdata);
    try {
      // for calculation type
      List<ItemFormMetadataBean> derivedItemList =
          ifmdao.findAllByCRFVersionIdAndResponseTypeId(
              ecb.getCRFVersionId(), ResponseType.CALCULATION.getId());
      if (derivedItemList.size() > 0) {
        Collections.sort(derivedItemList);
        for (ItemFormMetadataBean ifmb : derivedItemList) {
          if (ifmb.getSectionId() != sectionId) {
            ItemBean ib = (ItemBean) idao.findByPK(ifmb.getItemId());
            ResponseOptionBean rob = (ResponseOptionBean) ifmb.getResponseSet().getOptions().get(0);
            int groupsize = 1;
            if (itemOrdinals.containsKey(ib.getId())) {
              groupsize = itemOrdinals.get(ib.getId()).size();
            }
            String value = "";
            ArrayList<ScoreToken> parsedExp = new ArrayList<ScoreToken>();
            for (int i = 0; i < groupsize; ++i) {
              ItemDataBean idb =
                  iddao.findByItemIdAndEventCRFIdAndOrdinal(ifmb.getItemId(), ecb.getId(), i + 1);
              // is there any changed item
              Parser p = new Parser(items, itemdata);
              parsedExp = parser.parseScoreTokens(rob.getValue());
              if (p.isChanged(changedItems, parsedExp)) {
                StringBuffer err = new StringBuffer();
                parsedExp = parser.assignVariables(parsedExp, i + 1);
                // if parser has error and has been calculated
                // before, set "<erased>"
                if (parser.getErrors().length() > 0) {
                  err.append(parser.getErrors());
                  if (idb.isActive()) {
                    idb.setValue("<erased>");
                    idb.setStatus(Status.UNAVAILABLE);
                    idb = (ItemDataBean) iddao.update(idb);
                    if (!idb.isActive()) {
                      String key =
                          i + 1 > 1
                              ? ifmb.getLeftItemText() + "_" + (i + 1)
                              : ifmb.getLeftItemText();
                      updateFailedItems.add(key);
                    }
                  }
                  parser.setErrors(new StringBuffer());
                }
                // otherwise do calculation
                else {
                  try {
                    value = ScoreUtil.eval(parsedExp);
                  } catch (ScoreException se) {
                    logger.error(se.getMessage());
                  }
                  String exp = rob.getValue();
                  exp = exp.replace("##", ",");
                  if (writeToDB(ib, ifmb, idb, exp, value, err)) {
                    changedItems.add(ib.getName());
                    itemdata.put(ib.getId() + "_" + (i + 1), idb.getValue());
                  } else {
                    String key =
                        i + 1 > 1 ? ifmb.getLeftItemText() + "_" + (i + 1) : ifmb.getLeftItemText();
                    updateFailedItems.add(key);
                  }
                }
                if (err.length() > 0) {
                  String key =
                      i + 1 > 1 ? ifmb.getLeftItemText() + "_" + (i + 1) : ifmb.getLeftItemText();
                  errors.add("Item " + key + " contains calculation errors: " + err.toString());
                }
              }
            }
          }
        }
      }

      List<ItemFormMetadataBean> itemList =
          ifmdao.findAllByCRFVersionIdAndResponseTypeId(
              ecb.getCRFVersionId(), ResponseType.GROUP_CALCULATION.getId());
      if (itemList.size() > 0) {
        Collections.sort(itemList);
        for (ItemFormMetadataBean ifmb : itemList) {
          if (ifmb.getSectionId() != sectionId) {
            ItemBean ib = (ItemBean) idao.findByPK(ifmb.getItemId());
            ResponseOptionBean rob = (ResponseOptionBean) ifmb.getResponseSet().getOptions().get(0);
            String value = "";
            Parser p = new Parser(items, itemdata);
            ArrayList<ScoreToken> parsedExp = parser.parseScoreTokens(rob.getValue());
            if (p.isChanged(changedItems, parsedExp)) {
              StringBuffer err = new StringBuffer();
              parser.setErrors(err);
              parsedExp = parser.assignVariables(parsedExp, itemOrdinals);
              ItemDataBean idb =
                  iddao.findByItemIdAndEventCRFIdAndOrdinal(ifmb.getItemId(), ecb.getId(), 1);
              if (parser.getErrors().length() > 0) {
                err.append(parser.getErrors());
                if (idb.isActive()) {
                  idb.setValue("<erased>");
                  idb.setStatus(Status.UNAVAILABLE);
                  idb = (ItemDataBean) iddao.update(idb);
                  if (!idb.isActive()) {
                    updateFailedItems.add(ifmb.getLeftItemText());
                  }
                }
              } else {
                try {
                  value = ScoreUtil.eval(parsedExp);
                } catch (ScoreException se) {
                  logger.error(se.getMessage());
                }
                String exp = rob.getValue();
                exp = exp.replace("##", ",");
                if (writeToDB(ib, ifmb, idb, exp, value, err)) {
                  changedItems.add(ib.getName());
                  itemdata.put(ib.getId() + "_" + idb.getOrdinal(), idb.getValue());
                } else {
                  updateFailedItems.add(ifmb.getLeftItemText());
                }
              }
              if (err.length() > 0) {
                errors.add(
                    "Item "
                        + ifmb.getLeftItemText()
                        + " contains calculation errors: "
                        + err.toString());
              }
            }
          }
        }
      }
    } catch (OpenClinicaException e) {
      logger.error(e.getMessage());
    }

    return updateFailedItems;
  }
  public boolean prepareRequestForResolution(
      HttpServletRequest request,
      DataSource ds,
      StudyBean currentStudy,
      DiscrepancyNoteBean note,
      boolean isCompleted) {
    String entityType = note.getEntityType().toLowerCase();
    int id = note.getEntityId();
    if ("subject".equalsIgnoreCase(entityType)) {
      StudySubjectDAO ssdao = new StudySubjectDAO(ds);
      StudySubjectBean ssb = ssdao.findBySubjectIdAndStudy(id, currentStudy);

      request.setAttribute("action", "show");
      request.setAttribute("id", String.valueOf(note.getEntityId()));
      request.setAttribute("studySubId", String.valueOf(ssb.getId()));
    } else if ("studysub".equalsIgnoreCase(entityType)) {
      request.setAttribute("action", "show");
      request.setAttribute("id", String.valueOf(note.getEntityId()));
    } else if ("eventcrf".equalsIgnoreCase(entityType)) {
      request.setAttribute("editInterview", "1");

      EventCRFDAO ecdao = new EventCRFDAO(ds);
      EventCRFBean ecb = (EventCRFBean) ecdao.findByPK(id);
      request.setAttribute(TableOfContentsServlet.INPUT_EVENT_CRF_BEAN, ecb);
      // If the request is passed along to ViewSectionDataEntryServlet,
      // that code needs
      // an event crf id; the (ecb.getId()+"") is necessary because
      // FormProcessor throws
      // a ClassCastException without the casting to a String
      request.setAttribute(ViewSectionDataEntryServlet.EVENT_CRF_ID, ecb.getId() + "");
    } else if ("studyevent".equalsIgnoreCase(entityType)) {
      StudyEventDAO sedao = new StudyEventDAO(ds);
      StudyEventBean seb = (StudyEventBean) sedao.findByPK(id);
      request.setAttribute(EnterDataForStudyEventServlet.INPUT_EVENT_ID, String.valueOf(id));
      request.setAttribute(UpdateStudyEventServlet.EVENT_ID, String.valueOf(id));
      request.setAttribute(
          UpdateStudyEventServlet.STUDY_SUBJECT_ID, String.valueOf(seb.getStudySubjectId()));
    }

    // this is for item data
    else if ("itemdata".equalsIgnoreCase(entityType)) {
      ItemDataDAO iddao = new ItemDataDAO(ds);
      ItemDataBean idb = (ItemDataBean) iddao.findByPK(id);

      EventCRFDAO ecdao = new EventCRFDAO(ds);

      EventCRFBean ecb = (EventCRFBean) ecdao.findByPK(idb.getEventCRFId());

      StudySubjectDAO ssdao = new StudySubjectDAO(sm.getDataSource());

      StudySubjectBean ssb = (StudySubjectBean) ssdao.findByPK(ecb.getStudySubjectId());

      ItemFormMetadataDAO ifmdao = new ItemFormMetadataDAO(ds);
      ItemFormMetadataBean ifmb =
          ifmdao.findByItemIdAndCRFVersionId(idb.getItemId(), ecb.getCRFVersionId());

      if (currentRole.getRole().equals(Role.MONITOR) || !isCompleted) {
        StudyEventDAO sedao = new StudyEventDAO(ds);
        StudyEventBean seb = (StudyEventBean) sedao.findByPK(id);
        request.setAttribute(EVENT_CRF_ID, String.valueOf(idb.getEventCRFId()));
        request.setAttribute(STUDY_SUB_ID, String.valueOf(seb.getStudySubjectId()));

      } else {
        request.setAttribute(
            DataEntryServlet.INPUT_EVENT_CRF_ID, String.valueOf(idb.getEventCRFId()));
        request.setAttribute(
            DataEntryServlet.INPUT_SECTION_ID, String.valueOf(ifmb.getSectionId()));
      }
      DataEntryStage stage = ecb.getStage();

      // if (!stage.equals(DataEntryStage.DOUBLE_DATA_ENTRY_COMPLETE)) {
      // return false;
      // }
    }

    return true;
  }