private void applyNetworkServices(
final VmInstanceSpec spec,
NetworkServiceExtensionPosition position,
final Completion completion) {
if (!spec.getVmInventory().getType().equals(VmInstanceConstant.USER_VM_TYPE)) {
completion.success();
return;
}
if (nsExts.isEmpty()) {
completion.success();
return;
}
if (spec.getL3Networks() == null || spec.getL3Networks().isEmpty()) {
completion.success();
return;
}
// we run into this situation when VM nics are all detached and the
// VM is being rebooted
if (spec.getDestNics().isEmpty()) {
completion.success();
return;
}
List<String> nsTypes = spec.getRequiredNetworkServiceTypes();
FlowChain schain =
FlowChainBuilder.newSimpleFlowChain()
.setName(
String.format("apply-network-service-to-vm-%s", spec.getVmInventory().getUuid()));
schain.allowEmptyFlow();
for (final NetworkServiceExtensionPoint ns : nsExts) {
if (ns.getNetworkServiceExtensionPosition() != position) {
continue;
}
if (!nsTypes.contains(ns.getNetworkServiceType().toString())) {
continue;
}
Flow flow =
new Flow() {
String __name__ = String.format("apply-network-service-%s", ns.getNetworkServiceType());
@Override
public void run(final FlowTrigger chain, Map data) {
logger.debug(
String.format(
"NetworkServiceExtensionPoint[%s] is asking back ends to apply network service[%s] if needed",
ns.getClass().getName(), ns.getNetworkServiceType()));
ns.applyNetworkService(
spec,
data,
new Completion() {
@Override
public void success() {
chain.next();
}
@Override
public void fail(ErrorCode errorCode) {
chain.fail(errorCode);
}
});
}
@Override
public void rollback(final FlowRollback chain, Map data) {
logger.debug(
String.format(
"NetworkServiceExtensionPoint[%s] is asking back ends to release network service[%s] if needed",
ns.getClass().getName(), ns.getNetworkServiceType()));
ns.releaseNetworkService(
spec,
data,
new NoErrorCompletion() {
@Override
public void done() {
chain.rollback();
}
});
}
};
schain.then(flow);
}
schain
.error(
new FlowErrorHandler() {
@Override
public void handle(ErrorCode err, Map data) {
completion.fail(err);
}
})
.done(
new FlowDoneHandler() {
@Override
public void handle(Map data) {
completion.success();
}
})
.start();
}
