/**
* Reads a SFG from the datastore
*
* <p>
*
* @param serviceFunctionType function type
* @return ServiceFunctionGroup object or null if not found
*/
protected static ServiceFunctionGroup getServiceFunctionGroupByType(
Class<? extends ServiceFunctionTypeIdentity> serviceFunctionType) {
printTraceStart(LOG);
ServiceFunctionGroup sfg = null;
InstanceIdentifier<ServiceFunctionGroups> sfgIID;
sfgIID = InstanceIdentifier.builder(ServiceFunctionGroups.class).build();
ServiceFunctionGroups sfgs =
SfcDataStoreAPI.readTransactionAPI(sfgIID, LogicalDatastoreType.CONFIGURATION);
if (sfgs != null) {
for (ServiceFunctionGroup element : sfgs.getServiceFunctionGroup()) {
if (element.getType().equals(serviceFunctionType)) {
sfg = element;
LOG.debug("found group " + sfg + " that matches type " + serviceFunctionType);
break;
}
}
}
if (sfg == null) {
LOG.debug("didn't found group " + sfg + " that matches type " + serviceFunctionType);
}
printTraceStop(LOG);
return sfg;
}
private void buildGroup(ServiceFunctionGroup sfg, boolean isAdd) {
try {
List<SfcServiceFunction> sfs = sfg.getSfcServiceFunction();
SfName sfName = new SfName(sfs.get(0).getName());
ServiceFunction sf = SfcProviderServiceFunctionAPI.readServiceFunction(sfName);
// assuming all SF's have the same SFF
// should use the ovs id
SffName sffName = sf.getSfDataPlaneLocator().get(0).getServiceFunctionForwarder();
String sffNodeId = null;
sffNodeId = getSffOpenFlowNodeName(sffName);
if (sffNodeId == null) {
LOG.warn("failed to find switch configuration: sffName: {}- \naborting", sffName);
return;
}
ServiceFunctionGroupAlgorithm algorithm =
SfcProviderServiceFunctionGroupAlgAPI.readServiceFunctionGroupAlg(sfg.getAlgorithm());
List<GroupBucketInfo> bucketsInfo = new ArrayList<GroupBucketInfo>();
ServiceFunctionForwarder sff =
SfcProviderServiceForwarderAPI.readServiceFunctionForwarder(sffName);
int index = 0;
for (SfcServiceFunction sfcServiceFunction : sfg.getSfcServiceFunction()) {
sfName = new SfName(sfcServiceFunction.getName());
sf = SfcProviderServiceFunctionAPI.readServiceFunction(sfName);
ServiceFunctionDictionary sffSfDict = sfcL2ProviderUtils.getSffSfDictionary(sff, sfName);
String outPort = sfcL2ProviderUtils.getDictPortInfoPort(sff, sffSfDict);
bucketsInfo.add(buildBucket(sf, outPort, index));
index++;
}
this.sfcL2FlowProgrammer.configureGroup(
sffName.getValue(),
sffNodeId,
sfg.getName(),
sfg.getGroupId(),
algorithm.getAlgorithmType().getIntValue(),
bucketsInfo,
isAdd);
} catch (Exception e) {
LOG.warn("Failed generating group " + sfg, e);
}
}
public static List<String> getSfgNameList(ServiceFunctionChain serviceFunctionChain) {
List<String> ret = new ArrayList<>();
List<SfcServiceFunction> sfcServiceFunction = serviceFunctionChain.getSfcServiceFunction();
LOG.debug(
"searching groups for chain {} which has the elements {}",
serviceFunctionChain.getName(),
serviceFunctionChain.getSfcServiceFunction());
if (sfcServiceFunction != null) {
for (SfcServiceFunction sf : sfcServiceFunction) {
ServiceFunctionGroup sfg =
SfcProviderServiceFunctionGroupAPI.getServiceFunctionGroupByType(sf.getType());
LOG.debug("look for service function group of type {} and found {}", sf.getType(), sfg);
if (sfg != null) {
ret.add(sfg.getName());
} else {
return null;
}
}
}
return ret;
}
/**
* Puts a SFG in the datastore
*
* <p>
*
* @param sfg the ServiceFunctionGroup to put
* @return boolean success or failure
*/
public static boolean putServiceFunctionGroup(ServiceFunctionGroup sfg) {
boolean ret;
printTraceStart(LOG);
InstanceIdentifier<ServiceFunctionGroup> sfgEntryIID =
InstanceIdentifier.builder(ServiceFunctionGroups.class)
.child(ServiceFunctionGroup.class, sfg.getKey())
.build();
ret =
SfcDataStoreAPI.writePutTransactionAPI(
sfgEntryIID, sfg, LogicalDatastoreType.CONFIGURATION);
printTraceStop(LOG);
return ret;
}