def extractStatName(connection, sessionUrl, statList):
    statDir = {}

    for statSource in statList[:]:
        statSourceUrl = "%s/ixload/stats/%s/availableStats" % (sessionUrl, statSource)
        availableStatsList = connection.httpGet(statSourceUrl)
        if hasattr(availableStatsList, "error"):
            log("Warning - Stat source '%s' does not exist. Will ignore it." % (statSource))
            statList.remove(statSource)
            continue
        statDir[statSource] = [str(availableStat.statName) for availableStat in availableStatsList]

    return statDir