in ttl-agent/src/main/java/com/alibaba/ttl3/agent/TtlAgentHelper.java [115:127]
static List<String> splitListStringToStringList(@Nullable String listString) {
final List<String> ret = new ArrayList<>();
if (listString == null || listString.trim().length() == 0) return ret;
final String[] split = listString.trim().split("\\s*\\|\\s*");
for (String s : split) {
if (s.length() == 0) continue;
ret.add(s);
}
return ret;
}