/**
* Create Initiator Target LUN Mapping as an extension in volume object
*
* @param volume - volume in which ITL to be added
* @param exportMask - exportMask in which the volume is to be added
* @param targetLunId - integer value of host LUN id on which volume is accessible.
*/
private void storeITLMappingInVolume(
Map<URI, Integer> volumeToTargetLunMap, ExportMask exportMask) {
log.debug("START - createITLMappingInVolume");
for (URI volumeURI : volumeToTargetLunMap.keySet()) {
Integer targetLunId = volumeToTargetLunMap.get(volumeURI);
Volume volume = dbClient.queryObject(Volume.class, volumeURI);
StringSetMap zoningMap = exportMask.getZoningMap();
Set<String> zoningMapKeys = zoningMap.keySet();
int initiatorIndex = 0;
for (String initiator : zoningMapKeys) {
Initiator initiatorObj = dbClient.queryObject(Initiator.class, URI.create(initiator));
String initiatorWWPN =
initiatorObj.getInitiatorPort().replaceAll(CinderConstants.COLON, "");
StringSet targetPorts = zoningMap.get(initiator);
int targetIndex = 0;
for (String target : targetPorts) {
StoragePort targetPort = dbClient.queryObject(StoragePort.class, URI.create(target));
String targetPortWWN =
targetPort.getPortNetworkId().replaceAll(CinderConstants.COLON, "");
// Format is - <InitiatorWWPN>-<TargetWWPN>-<LunId>
String itl = initiatorWWPN + "-" + targetPortWWN + "-" + String.valueOf(targetLunId);
// ITL keys will be formed as ITL-00, ITL-01, ITL-10, ITL-11 so on
String itlKey =
CinderConstants.PREFIX_ITL
+ String.valueOf(initiatorIndex)
+ String.valueOf(targetIndex);
log.info(String.format("Adding ITL %s with key %s", itl, itlKey));
StringMap extensionsMap = volume.getExtensions();
if (null == extensionsMap) {
extensionsMap = new StringMap();
extensionsMap.put(itlKey, itl);
volume.setExtensions(extensionsMap);
} else {
volume.getExtensions().put(itlKey, itl);
}
targetIndex++;
}
initiatorIndex++;
}
dbClient.updateAndReindexObject(volume);
}
log.debug("END - createITLMappingInVolume");
}
/**
* Remove the list of ITLs from the volume extensions
*
* @param volume
* @return
*/
private void removeITLsFromVolume(Volume volume) {
StringMap extensions = volume.getExtensions();
Set<Map.Entry<String, String>> mapEntries = extensions.entrySet();
for (Iterator<Map.Entry<String, String>> it = mapEntries.iterator(); it.hasNext(); ) {
Map.Entry<String, String> entry = it.next();
if (entry.getKey().startsWith(CinderConstants.PREFIX_ITL)) {
it.remove();
}
}
}