public boolean doRestart(
Service service, RollingRestartStrategy strategy, Map<String, List<Instance>> toRestart) {
try {
long batchSize = strategy.getBatchSize();
final Map<String, List<Instance>> restartBatch = new HashMap<>();
long i = 0;
Iterator<Map.Entry<String, List<Instance>>> it = toRestart.entrySet().iterator();
while (it.hasNext() && i < batchSize) {
Map.Entry<String, List<Instance>> instances = it.next();
String deploymentUnitUUID = instances.getKey();
restartBatch.put(deploymentUnitUUID, instances.getValue());
it.remove();
i++;
}
restartDeploymentUnits(service, restartBatch);
if (toRestart.isEmpty()) {
return true;
}
return false;
} catch (TimeoutException e) {
return false;
}
}
protected List<? extends Instance> getServiceInstancesToRestart(Service service) {
// get all instances of the service
List<? extends Instance> instances = exposeMapDao.listServiceManagedInstances(service.getId());
List<Instance> toRestart = new ArrayList<>();
ServiceRestart svcRestart =
DataAccessor.field(
service, ServiceDiscoveryConstants.FIELD_RESTART, jsonMapper, ServiceRestart.class);
RollingRestartStrategy strategy = svcRestart.getRollingRestartStrategy();
Map<Long, Long> instanceToStartCount = strategy.getInstanceToStartCount();
// compare its start_count with one set on the service restart field
for (Instance instance : instances) {
if (instanceToStartCount.containsKey(instance.getId())) {
Long previousStartCount = instanceToStartCount.get(instance.getId());
if (previousStartCount == instance.getStartCount()) {
toRestart.add(instance);
}
}
}
return toRestart;
}