apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/component/config/PortalConfig.java/PortalConfig/webHookSupportedEnvs
class PortalConfig:  public Set<Env> webHookSupportedEnvs() {
    String[] configurations = getArrayProperty("webhook.supported.envs", null);

    Set<Env> result = Sets.newHashSet();
    if (configurations == null || configurations.length == 0) {
      return result;
    }

    for (String env : configurations) {
      result.add(Env.valueOf(env));
    }

    return result;
  }