private String checkPatientIDs(
     ProvideAndRegisterDocumentSetRequestType req,
     RegistryPackageType submissionSet,
     List<ExtrinsicObjectType> extrObjs)
     throws XDSException {
   String submissionPatId =
       InfosetUtil.getExternalIdentifierValue(
           XDSConstants.UUID_XDSSubmissionSet_patientId, submissionSet);
   String docPatId;
   ExtrinsicObjectType eo;
   for (int i = 0, len = extrObjs.size(); i < len; i++) {
     eo = extrObjs.get(i);
     docPatId =
         InfosetUtil.getExternalIdentifierValue(XDSConstants.UUID_XDSDocumentEntry_patientId, eo);
     if (docPatId != null && !docPatId.equals(submissionPatId)) {
       String msg =
           "XDSDocumentEntry.patientId ("
               + docPatId
               + ")and XDSSubmissionSet.patientId ("
               + submissionPatId
               + ") doesn't match! ExtrinsicObject.Id:"
               + eo.getId();
       log.warn(msg);
       throw new XDSException(XDSException.XDS_ERR_PATID_DOESNOT_MATCH, msg, null);
     }
   }
   RegistryPackageType folder =
       InfosetUtil.getRegistryPackage(req.getSubmitObjectsRequest(), XDSConstants.UUID_XDSFolder);
   String folderPatId =
       folder == null
           ? null
           : InfosetUtil.getExternalIdentifierValue(XDSConstants.UUID_XDSFolder_patientId, folder);
   if (folderPatId != null && !folderPatId.equals(submissionPatId)) {
     String msg =
         "XDSFolder.patientId ("
             + folderPatId
             + ")and XDSSubmissionSet.patientId ("
             + submissionPatId
             + ") doesn't match!";
     log.warn(msg);
     throw new XDSException(XDSException.XDS_ERR_PATID_DOESNOT_MATCH, msg, null);
   }
   return submissionPatId;
 }
 private List<ExtrinsicObjectType> checkRequest(ProvideAndRegisterDocumentSetRequestType req)
     throws XDSException {
   SubmitObjectsRequest sor = req.getSubmitObjectsRequest();
   RegistryPackageType submissionSet =
       InfosetUtil.getRegistryPackage(sor, XDSConstants.UUID_XDSSubmissionSet);
   if (submissionSet == null) {
     log.error("No RegistryPackage id=SubmissionSet found!");
     throw new XDSException(
         XDSException.XDS_ERR_REPOSITORY_ERROR,
         XDSException.XDS_ERR_MISSING_REGISTRY_PACKAGE,
         null);
   } else if (submissionSet.getId() == null || submissionSet.getId().trim().length() == 0) {
     throw new XDSException(
         XDSException.XDS_ERR_REPOSITORY_METADATA_ERROR,
         "Missing XDSSubmissionSet.entryUUID!",
         null);
   }
   List<ExtrinsicObjectType> extrObjs =
       InfosetUtil.getExtrinsicObjects(req.getSubmitObjectsRequest());
   checkPatientIDs(req, submissionSet, extrObjs);
   Map<String, Document> docs = InfosetUtil.getDocuments(req);
   if (extrObjs.size() > docs.size()) {
     log.warn(
         "Missing Documents! Found more ExtrinsicObjects("
             + extrObjs.size()
             + ") than Documents("
             + docs.size()
             + ")!");
     throw new XDSException(XDSException.XDS_ERR_MISSING_DOCUMENT, "", null);
   } else if (extrObjs.size() < docs.size()) {
     log.warn(
         "Missing Document Metadata! Found less ExtrinsicObjects("
             + extrObjs.size()
             + ") than Documents("
             + docs.size()
             + ")!");
     throw new XDSException(XDSException.XDS_ERR_MISSING_DOCUMENT_METADATA, "", null);
   }
   return extrObjs;
 }