getBloombergData <- function(conn,ticker,start.date){
  require(TTR)
  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
  spl <-  bds(conn,paste(ticker,"Equity"),c("EQY_DVD_ADJUST_FACT"))
  # 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(data.frame(spl$"Adjustment Factor",
               ifelse(spl$"Adjustment Factor Flag" %in% c(2,3),
                      spl$"Adjustment Factor",NA)),
               order.by = as.Date(spl$"Adjustment Date"))
    #aggregate non-unique dates
    spl <- as.xts(aggregate(spl, identity, prod, na.rm=T))
    if(any(time(spl)>= start.date & time(spl)<=Sys.Date())){
      spl <- window(spl, start=start.date, end = Sys.Date())
    }else{
      spl <- NULL
    }
  }
  #div information
  #we need to override the end date as well cause the Ex-Date might be in the
  #future
  override_fields <- c("DVD_START_DT", "DVD_END_DT")
  override_values <- c(format(start.date,"%Y%m%d"),format(Sys.Date(),"%Y%m%d"))
  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)){
    #need to use merge.xts, otherwise spl is cast to a numeric
    divspl <- merge.xts(NA, spl ,all=T)
  }else if(is.null(spl)){
    divspl <- merge.xts(div ,NA, NA, all=T)
  }else{
    divspl <- merge(div, spl, all=T)
  }
  if(!is.null(divspl)){
    colnames(divspl) <- c("Adj.Div","Split","Split2")
    ohlc <- merge(ohlc, divspl, all = TRUE)
    if (all(is.na(ohlc[, "Split2"]))) {
      s.ratio2 <- rep(1, NROW(ohlc))
    }else {
      s.ratio2 <- adjRatios(split = ohlc[, "Split2"])[, 1]
    }
    ohlc <- cbind(ohlc, ohlc[, "Adj.Div"] * (1/s.ratio2))
    colnames(ohlc)[NCOL(ohlc)] <- "Div"
    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/s.ratio2)
    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 )
}