Examples with STACK_SELECT_FOR_DOWNSCALE com.sequenceiq.cloudbreak.event.ResourceEvent.STACK_SELECT_FOR_DOWNSCALE used on opensource projects

Example 1 with STACK_SELECT_FOR_DOWNSCALE

use of com.sequenceiq.cloudbreak.event.ResourceEvent.STACK_SELECT_FOR_DOWNSCALE in project cloudbreak by hortonworks.

the class CollectDownscaleCandidatesHandler method collectCandidates.

private Set<Long> collectCandidates(CollectDownscaleCandidatesRequest request, Stack stack) throws CloudbreakException {
    Set<Long> privateIds = new HashSet<>();
    LOGGER.debug("Collecting candidates for downscale based on [{}] and stack CRN [{}].", request, stack.getResourceCrn());
    for (Map.Entry<String, Integer> entry : request.getHostGroupWithAdjustment().entrySet()) {
        String hostGroupName = entry.getKey();
        HostGroup hostGroup = hostGroupService.getByClusterIdAndName(stack.getCluster().getId(), hostGroupName).orElseThrow(NotFoundException.notFound("hostgroup", hostGroupName));
        LOGGER.debug("Host group has been found for cluster! It's name: {}", hostGroup.getName());
        List<InstanceMetaData> metaDataForInstanceGroup = instanceMetaDataService.findAliveInstancesInInstanceGroup(hostGroup.getInstanceGroup().getId());
        Set<InstanceMetaData> collectedCandidates = clusterApiConnectors.getConnector(stack).clusterDecomissionService().collectDownscaleCandidates(hostGroup, entry.getValue(), new HashSet<>(metaDataForInstanceGroup));
        String collectedHostsAsString = collectedCandidates.stream().map(instanceMetaData -> instanceMetaData.getDiscoveryFQDN() != null ? "FQDN: " + instanceMetaData.getDiscoveryFQDN() : "Private id: " + instanceMetaData.getPrivateId()).collect(Collectors.joining(", "));
        LOGGER.debug("The following hosts has been collected as candidates for downscale: [{}]", collectedHostsAsString);
        flowMessageService.fireEventAndLog(stack.getId(), AVAILABLE.name(), STACK_SELECT_FOR_DOWNSCALE, collectedHostsAsString);
        privateIds.addAll(collectedCandidates.stream().map(InstanceMetaData::getPrivateId).collect(Collectors.toSet()));
    }
    return privateIds;
}