@Override
public Epoch load(int evolutionId, long epochId, final PopulationConfiguration configuration)
throws Exception {
try {
List<Probe> probes = dao.retrieve(evolutionId, epochId);
if (probes != null && probes.size() > 0) {
return Epoch.create(
probes.get(0).getEpochId(),
new Population(
FluentIterable.from(probes)
.transform(
new Function<Probe, Genome>() {
@Override
public Genome apply(Probe input) {
return new Genome(
input.getGenomeId(),
input.getGenomeWeights(),
configuration.getPerceptronConfiguration());
}
})
.toList(),
configuration,
new DefaultPerceptronProvider()));
} else {
return null;
}
} catch (Exception e) {
throw new Exception("Loading service failed. Latest epoch hasn't been loaded.", e);
}
}
@Override
public void save(int evolutionId, DateTime createdOn, Epoch epoch) throws Exception {
try {
Population population = epoch.getPopulation();
for (Genome g : population.getGenomes()) {
dao.create(
new Probe(
ObjectId.get(),
evolutionId,
createdOn,
epoch.getId(),
g.getId(),
g.getFitness(),
g.getDna()));
}
} catch (Exception e) {
throw new Exception(
"Saving service failed. Epoch for evolutionId %d and epochId %d hasn't been persisted.",
e);
}
}