Do not delete.

getReactionBiGGIdFromUriList

private String getReactionBiGGIdFromUriList(List<String> list_Uri){
    String biggId = null;
    for(String uri : list_Uri){
      String dataSource, synonym_id, currentBiGGId; //currentBiGGId is id calculated in current iteration
      synonym_id = uri.substring(uri.lastIndexOf('/')+1);
      uri = uri.substring(0,uri.lastIndexOf('/'));
      dataSource = uri.substring(uri.lastIndexOf('/')+1);

      //updating the dataSource and synonym_id to match bigg database
      switch (dataSource){

        //bigg.metabolite data_source identifier will directly give biggId
        case "bigg.reaction":
          return "R_"+synonym_id;

        case "metanetx.reaction":
          dataSource = "mnx.equation";
          break;

        case "kegg.reaction" : break;

        case "ec-code" :
          dataSource = "ec";
          break;

        case "rhea" : break;

        default:
          return null; //the dataSource must belong one of above
      }

      currentBiGGId = bigg.getBiggIdFromSynonym(dataSource,synonym_id,BiGGDB.TYPE_REACTION);

      if(biggId==null){
        biggId = currentBiGGId;
      }else {
        //we must get same biggId from each synonym
        if(!currentBiGGId.equals(biggId))
          return null;
      }
    }
    return biggId == null ? null : "R_"+biggId;
  }