getBloombergData <- function(conn,ticker,start,date){
  ohlc <- bdh(conn,paste(ticker,"Equity"),c("PX_OPEN","PX_HIGH","PX_LOW","PX_LAST","VOLUME"),start.date,dates.as.row.names=F)
  colnames(ohlc) <- c("Date","Open","High","Low","Close","Volume")
  ohlc <- xts(ohlc[,-1],as.Date(ohlc$Date))
  #split information
  override_field="DVD_START_DT" #DVD_END_DT
  override_values=format(start,"%Y%M%d")
  spl <-  bds(conn,paste(ticker,"Equity"),c("EQY_DVD_ADJUST_FACT"),override_field,override_values)
   # bds returns NULL if there is no data.
   #Adjustment Factor Operator Type
   # 1 = div
   # 2 = mul
   # 3 = add
   # 4 = sub
   #Adjustment Factor Flag
   # 1 = prices only
   # 2 = volumes only
   # 3 = prices and volume

   # can't handle 3 or 4 yet
  if(NROW(spl)!=0){
    if (NROW(spl[spl[,"Adjustment Factor Operator Type"]%in% c(3,4),])>0){
      stop("case not handled")
    }else{
      spl[spl[,"Adjustment Factor Operator Type"]==1,"Adjustment Factor"] <-
        1/spl[spl[,"Adjustment Factor Operator Type"]==1,"Adjustment Factor"]
    }
    spl <- xts(spl$"Adjustment Factor",as.Date(spl$"Adjustment Date"))
    if(time(last(spl))>=start.date){
      spl <- window(spl,start=start.date)
    }else{
      spl <- NULL
    }
  }
  #div information
  div <- bds(conn,paste(ticker,"Equity"),c("DVD_HIST"),override_fields,override <- values)
  if(NROW(div)!=0){
    div <- xts(div$"Dividend Amount",as.Date(div$"Ex-Date"))
  }
  if(is.null(div)&&is.null(spl)){
    divspl <- NULL
  }else if(is.null(div)){
    divspl <- merge(NA,spl,all=T)
  }else if(is.null(spl)){
    divspl <- merge(div,NA,all=T)
  }else{
    divspl <- merge(div,spl,all=T)
  }
  if(!is.null(divspl)){
    colnames(divspl) <- c("Adj.Div","Split")
    if (all(is.na(divspl[, "Split"]))) {
      s.ratio <- rep(1, NROW(divspl))
    }else {
      s.ratio <- adjRatios(split = divspl[, "Split"])[, 1]
    }
    divspl <- cbind(divspl, divspl[, "Adj.Div"] * (1/s.ratio))
    colnames(divspl)[3] <- "Div"
    ohlc <- merge(ohlc, divspl, all = TRUE)
    adj <- adjRatios(ohlc[, "Split"], ohlc[, "Div"], ohlc[, "Close"])
    s.ratio <- adj[, 1]
    d.ratio <- adj[, 2]
    cn <- colnames(ohlc)
    ohlc <- cbind(ohlc, ohlc[, "Close"])
    colnames(ohlc) <- c(cn, "Unadj.Close")
    ohlc[, "Open"] <- ohlc[, "Open"] * d.ratio * s.ratio
    ohlc[, "High"] <- ohlc[, "High"] * d.ratio * s.ratio
    ohlc[, "Low"] <- ohlc[, "Low"] * d.ratio *s.ratio
    ohlc[, "Close"] <- ohlc[, "Close"] * d.ratio * s.ratio
    ohlc[, "Volume"] <- ohlc[, "Volume"] * (1/d.ratio)
    ohlc <- ohlc[, c("Open", "High", "Low", "Close", "Volume",
                     "Unadj.Close", "Div", "Split", "Adj.Div")]
  }else{
    cn <- colnames(ohlc)
    ohlc <- cbind(ohlc, ohlc[, "Close"])
    colnames(ohlc) <- c(cn, "Unadj.Close")
    ohlc <- merge(ohlc,NA,NA,NA,all = TRUE)
    colnames(ohlc) <- c(colnames(ohlc)[1:6],"Adj.Div","Split","Div")
  }
  return( ohlc )
}