@RequiresSession
  public Map<String, List<HostConfigMapping>> findSelectedHostsByTypes(
      final long clusterId, Collection<String> types) {

    populateCache();

    Map<String, List<HostConfigMapping>> mappingsByType =
        new HashMap<String, List<HostConfigMapping>>();

    for (String type : types) {
      if (!mappingsByType.containsKey(type)) {
        mappingsByType.put(type, new ArrayList<HostConfigMapping>());
      }
    }

    if (!types.isEmpty()) {
      List<HostConfigMapping> mappings = new ArrayList<HostConfigMapping>();

      for (Set<HostConfigMapping> entries : hostConfigMappingByHost.values()) {

        for (HostConfigMapping entry : entries) {

          if (types.contains(entry.getType()) && entry.getClusterId().equals(clusterId))
            mappings.add(new HostConfigMappingImpl(entry));
        }
      }

      for (HostConfigMapping mapping : mappings) {
        mappingsByType.get(mapping.getType()).add(mapping);
      }
    }

    return mappingsByType;
  }
  public HostConfigMappingEntity buildHostConfigMappingEntity(HostConfigMapping hostConfigMapping) {

    HostConfigMappingEntity hostConfigMappingEntity = new HostConfigMappingEntity();

    hostConfigMappingEntity.setClusterId(hostConfigMapping.getClusterId());
    hostConfigMappingEntity.setCreateTimestamp(hostConfigMapping.getCreateTimestamp());
    hostConfigMappingEntity.setHostName(hostConfigMapping.getHostName());
    hostConfigMappingEntity.setSelected(hostConfigMapping.getSelected());
    hostConfigMappingEntity.setServiceName(hostConfigMapping.getServiceName());
    hostConfigMappingEntity.setType(hostConfigMapping.getType());
    hostConfigMappingEntity.setUser(hostConfigMapping.getUser());
    hostConfigMappingEntity.setVersion(hostConfigMapping.getVersion());

    return hostConfigMappingEntity;
  }