@Override
public String getMessage(String sector, String agent, String key, int lag) {
final String result;
final int t = timer.getPeriod().intValue() - lag;
final SectorDataset sectorDataset = getSectorDataset(sector, t);
if (sectorDataset != null) {
result = sectorDataset.getAgentInfo(agent, key);
} else {
result = null; // TODO générer une erreur ?
}
return result;
}
