/**
* Add additional state-update to record information about a door.
*
* @param update the StateUpdate we are to add metrics to.
* @param pathToDoor a StatePath under which we are to add data.
* @param info the information about the door.
* @param lifetime the duration, in seconds, for this information
*/
private void addDoorInfo(
StateUpdate update, StatePath pathToDoor, LoginBrokerInfo info, long lifetime) {
StatePath pathToProtocol = pathToDoor.newChild("protocol");
conditionalAddString(update, pathToProtocol, "engine", info.getProtocolEngine(), lifetime);
conditionalAddString(update, pathToProtocol, "family", info.getProtocolFamily(), lifetime);
conditionalAddString(update, pathToProtocol, "version", info.getProtocolVersion(), lifetime);
conditionalAddString(update, pathToProtocol, "root", info.getRoot(), lifetime);
update.appendUpdate(
pathToDoor.newChild("load"), new FloatingPointStateValue(info.getLoad(), lifetime));
update.appendUpdate(
pathToDoor.newChild("port"), new IntegerStateValue(info.getPort(), lifetime));
update.appendUpdate(
pathToDoor.newChild("cell"), new StringStateValue(info.getCellName(), lifetime));
update.appendUpdate(
pathToDoor.newChild("domain"), new StringStateValue(info.getDomainName(), lifetime));
update.appendUpdate(
pathToDoor.newChild("update-time"), new IntegerStateValue(info.getUpdateTime(), lifetime));
info.getAddresses()
.stream()
.forEach(i -> addInterfaceInfo(update, pathToDoor.newChild("interfaces"), i, lifetime));
update.appendUpdateCollection(pathToDoor.newChild("tags"), info.getTags(), lifetime);
}
/**
* Build a StatePath for a given VO to the summary of that VO's SRM reservations; for example,
* <code>summary.reservations.by-vo.atlas</code>
*
* @param voName The name of the VO
* @return a StatePath pointing to the "by-description" part of this VO's reservation summary.
*/
private static StatePath buildVoPath(String voName) {
if (voName == null) {
throw new IllegalArgumentException("voName is null");
}
return RESERVATIONS_BASE_PATH.newChild(voName);
}
/**
* Purge all IDs that are not present in this ReservationSummaryInfo but are missing from a new
* version of ReservationSummaryInfo
*
* @param update the StateUpdate to add adjust.
* @param basePath the base path of the IDs
* @param newInfo the new version of this ReservationSummaryInfo
*/
public void purgeMissingIds(
StateUpdate update, StatePath basePath, ReservationSummaryInfo newInfo) {
for (String id : _ids) {
if (!newInfo.hasId(id)) {
update.purgeUnder(basePath.newChild(id));
}
}
}
/**
* Update the provided StateUpdate object so that later processing this StateUpdate will alter
* dCache state such that it reflects the information held in this object.
*
* @param update the StateUpdate to use
* @param voName the name of the VO
* @param basePath the StatePath under which metrics will be added
* @param oldInfo the previous ReservationSummaryInfo or null if this description is new.
*/
public void updateMetrics(
StateUpdate update, String voName, StatePath basePath, ReservationSummaryInfo oldInfo) {
StatePath spacePath = basePath.newChild(PATH_ELEMENT_SPACE_BRANCH);
if (totalNeedsUpdating(oldInfo)) {
update.appendUpdate(
spacePath.newChild(PATH_ELEMENT_TOTAL_METRIC), new IntegerStateValue(getTotal(), true));
}
if (freeNeedsUpdating(oldInfo)) {
update.appendUpdate(
spacePath.newChild(PATH_ELEMENT_FREE_METRIC), new IntegerStateValue(getFree(), true));
}
if (allocatedNeedsUpdating(oldInfo)) {
update.appendUpdate(
spacePath.newChild(PATH_ELEMENT_ALLOCATED_METRIC),
new IntegerStateValue(getAllocated(), true));
}
if (usedNeedsUpdating(oldInfo)) {
update.appendUpdate(
spacePath.newChild(PATH_ELEMENT_USED_METRIC), new IntegerStateValue(getUsed(), true));
}
StatePath resvPath = basePath.newChild(PATH_ELEMENT_RESERVATIONS_BRANCH);
/* Activity if there was an existing summary information */
if (oldInfo != null) {
oldInfo.purgeMissingIds(update, resvPath, this);
/* Add those entries that are new */
for (String newId : _ids) {
if (!oldInfo.hasId(newId)) {
update.appendUpdate(resvPath.newChild(newId), new StateComposite(true));
}
}
} else {
/* Add the VO name (we need to this only once) */
update.appendUpdate(
basePath.newChild(PATH_ELEMENT_VO_NAME_METRIC), new StringStateValue(voName, true));
/* Add all IDs */
for (String id : _ids) {
update.appendUpdate(resvPath.newChild(id), new StateComposite(true));
}
}
}
public void messageArrived(LoginBrokerInfo info) {
StateUpdate update = new StateUpdate();
addDoorInfo(
update,
PATH_TO_DOORS.newChild(info.getIdentifier()),
info,
TimeUnit.MILLISECONDS.toSeconds((long) (EXPIRATION_FACTOR * info.getUpdateTime())));
_sum.enqueueUpdate(update);
}
/**
* Add a standardised amount of information about an interface. This is in the form:
*
* <pre>
* [interfaces]
* |
* |
* +--[ id ] (branch)
* | |
* | +-- "order" (integer metric: 1 .. 2 ..)
* | +-- "FQDN" (string metric: the host's FQDN, as presented by the door)
* | +-- "address" (string metric: the host's address; e.g., "127.0.0.1")
* | +-- "address-type" (string metric: "IPv4", "IPv6" or "unknown")
* | +-- "scope" (string metric: "IPv4", "IPv6" or "unknown")
* |
* </pre>
*
* @param update The StateUpdate to append the new metrics.
* @param parentPath the path that the id branch will be added.
* @param lifetime how long the created metrics should last.
*/
private void addInterfaceInfo(
StateUpdate update, StatePath parentPath, InetAddress address, long lifetime) {
StatePath pathToInterfaceBranch = parentPath.newChild(address.getHostAddress());
String hostName = address.getHostName();
update.appendUpdate(
pathToInterfaceBranch.newChild("FQDN"), new StringStateValue(hostName, lifetime));
String urlName = (isInetAddress(hostName)) ? toUriString(address) : hostName;
update.appendUpdate(
pathToInterfaceBranch.newChild("url-name"), new StringStateValue(urlName, lifetime));
update.appendUpdate(
pathToInterfaceBranch.newChild("address"),
new StringStateValue(address.getHostAddress(), lifetime));
update.appendUpdate(
pathToInterfaceBranch.newChild("address-type"),
new StringStateValue(
(address instanceof Inet4Address)
? "IPv4"
: (address instanceof Inet6Address) ? "IPv6" : "unknown",
lifetime));
update.appendUpdate(
pathToInterfaceBranch.newChild("scope"),
new StringStateValue(NetworkUtils.InetAddressScope.of(address).toString().toLowerCase()));
}
/**
* Add a string metric at a specific point in the State tree if the value is not NULL.
*
* @param update the StateUpdate to append with the metric definition
* @param parentPath the path to the parent branch for this metric
* @param name the name of the metric
* @param value the metric's value, or null if the metric should not be added.
* @param storeTime how long, in seconds the metric should be preserved.
*/
private void conditionalAddString(
StateUpdate update, StatePath parentPath, String name, String value, long storeTime) {
if (value != null) {
update.appendUpdate(parentPath.newChild(name), new StringStateValue(value, storeTime));
}
}
/**
* Build a path to a description's summary information based on a voBasePath (something like
* <code>summary.reservations.by-vo.atlas</code>. The returned path is something like: <code>
* summary.reservations.by-vo.atlas.by-description.MCDISK</code>
*
* @param voBasePath
* @param description
* @return
*/
private static StatePath buildDescriptionPath(StatePath voBasePath, String description) {
return voBasePath.newChild(PATH_ELEMENT_BY_DESCRIPTION_BRANCH).newChild(description);
}