McrouterRouteHandlePtr makeLatestRoute(
RouteHandleFactory<McrouterRouteHandleIf>& factory,
const folly::dynamic& json) {
std::vector<McrouterRouteHandlePtr> children;
if (json.isObject()) {
if (auto jchildren = json.get_ptr("children")) {
children = factory.createList(*jchildren);
}
} else {
children = factory.createList(json);
}
return makeLatestRoute(json, std::move(children));
}
McrouterRouteHandlePtr makeFailoverWithExptimeRoute(
RouteHandleFactory<McrouterRouteHandleIf>& factory,
const folly::dynamic& json) {
checkLogic(json.isObject(), "FailoverWithExptimeRoute is not an object");
auto jnormal = json.get_ptr("normal");
checkLogic(jnormal, "FailoverWithExptimeRoute: normal not found");
auto normal = factory.create(*jnormal);
int32_t failoverExptime = 60;
if (auto jexptime = json.get_ptr("failover_exptime")) {
checkLogic(jexptime->isInt(), "FailoverWithExptimeRoute: "
"failover_exptime is not an integer");
failoverExptime = jexptime->getInt();
}
std::vector<McrouterRouteHandlePtr> failover;
if (auto jfailover = json.get_ptr("failover")) {
failover = factory.createList(*jfailover);
}
auto children = getFailoverChildren(std::move(normal),
std::move(failover),
failoverExptime);
return makeFailoverRoute(json, std::move(children));
}
FailoverWithExptimeRoute::FailoverWithExptimeRoute(
RouteHandleFactory<McrouterRouteHandleIf>& factory,
const folly::dynamic& json)
: failoverExptime_(60) {
checkLogic(json.isObject(), "FailoverWithExptimeRoute is not object");
std::vector<McrouterRouteHandlePtr> failoverTargets;
if (json.count("failover")) {
failoverTargets = factory.createList(json["failover"]);
}
failover_ = FailoverRoute<McrouterRouteHandleIf>(std::move(failoverTargets));
if (json.count("normal")) {
normal_ = factory.create(json["normal"]);
}
if (json.count("failover_exptime")) {
checkLogic(json["failover_exptime"].isInt(),
"failover_exptime is not integer");
failoverExptime_ = json["failover_exptime"].asInt();
}
if (json.count("settings")) {
settings_ = FailoverWithExptimeSettings(json["settings"]);
}
}
McrouterRouteHandlePtr makeFailoverWithExptimeRoute(
RouteHandleFactory<McrouterRouteHandleIf>& factory,
const folly::dynamic& json) {
checkLogic(json.isObject(), "FailoverWithExptimeRoute is not an object");
McrouterRouteHandlePtr normal;
if (auto jnormal = json.get_ptr("normal")) {
normal = factory.create(*jnormal);
}
std::vector<McrouterRouteHandlePtr> failoverTargets;
if (auto jfailover = json.get_ptr("failover")) {
failoverTargets = factory.createList(*jfailover);
}
int32_t failoverExptime = 60;
if (auto jexptime = json.get_ptr("failover_exptime")) {
checkLogic(jexptime->isInt(), "FailoverWithExptimeRoute: "
"failover_exptime is not an integer");
failoverExptime = jexptime->getInt();
}
// Check if only one format is being used
checkLogic(!(json.count("settings") && // old
(json.count("failover_errors") || json.count("failover_tag"))), // new
"Use either 'settings' (old format) or 'failover_errors' / 'failover_tag'"
);
// new format
FailoverErrorsSettings failoverErrors;
bool failoverTagging = false;
if (auto jfailoverTag = json.get_ptr("failover_tag")) {
checkLogic(jfailoverTag->isBool(),
"FailoverWithExptime: failover_tag is not bool");
failoverTagging = jfailoverTag->getBool();
}
if (auto jfailoverErrors = json.get_ptr("failover_errors")) {
failoverErrors = FailoverErrorsSettings(*jfailoverErrors);
}
// old format
if (auto jsettings = json.get_ptr("settings")) {
VLOG(1) << "FailoverWithExptime: This config format is deprecated. "
"Use 'failover_errors' instead of 'settings'.";
auto oldSettings = FailoverWithExptimeSettings(*jsettings);
failoverTagging = oldSettings.failoverTagging;
failoverErrors = oldSettings.getFailoverErrors();
}
return makeFailoverWithExptimeRoute(
std::move(normal),
std::move(failoverTargets),
failoverExptime,
std::move(failoverErrors),
failoverTagging);
}
std::vector<McrouterRouteHandlePtr> makeShadowRoutes(
RouteHandleFactory<McrouterRouteHandleIf>& factory,
const folly::dynamic& json,
proxy_t& proxy,
ExtraRouteHandleProviderIf& extraProvider) {
checkLogic(json.isObject(), "ShadowRoute should be an object");
const auto jchildren = json.get_ptr("children");
checkLogic(jchildren, "ShadowRoute: children not found");
auto children = factory.createList(*jchildren);
if (json.count("shadows")) {
children = makeShadowRoutes(
factory, json, std::move(children), proxy, extraProvider);
}
return children;
}