@Override
@SuppressWarnings({"rawtypes", "unchecked"})
public void execute() throws IOException, RecommenderBuildException {
LenskitRecommenderEngine engine = loadEngine();
long user = options.getLong("user");
List<Long> items = options.get("items");
LenskitRecommender rec = engine.createRecommender();
RatingPredictor pred = rec.getRatingPredictor();
if (pred == null) {
logger.error("recommender has no rating predictor");
throw new UnsupportedOperationException("no rating predictor");
}
logger.info("predicting {} items", items.size());
Symbol pchan = getPrintChannel();
Stopwatch timer = Stopwatch.createStarted();
SparseVector preds = pred.predict(user, items);
Long2ObjectMap channel = null;
if (pchan != null) {
for (TypedSymbol sym : preds.getChannelSymbols()) {
if (sym.getRawSymbol().equals(pchan)) {
channel = preds.getChannel(sym);
}
}
}
for (VectorEntry e : preds) {
System.out.format(" %d: %.3f", e.getKey(), e.getValue());
if (channel != null) {
System.out.format(" (%s)", channel.get(e.getKey()));
}
System.out.println();
}
timer.stop();
logger.info("predicted for {} items in {}", items.size(), timer);
}
@Override
protected int runWithJobId(
final Namespace options,
final HeliosClient client,
final PrintStream out,
final boolean json,
final JobId jobId,
final BufferedReader stdin)
throws ExecutionException, InterruptedException, IOException {
final String name = options.getString(nameArg.getDest());
final long timeout = options.getLong(timeoutArg.getDest());
final int parallelism = options.getInt(parallelismArg.getDest());
final boolean async = options.getBoolean(asyncArg.getDest());
final long rolloutTimeout = options.getLong(rolloutTimeoutArg.getDest());
final boolean migrate = options.getBoolean(migrateArg.getDest());
final boolean overlap = options.getBoolean(overlapArg.getDest());
final String token = options.getString(tokenArg.getDest());
checkArgument(timeout > 0, "Timeout must be greater than 0");
checkArgument(parallelism > 0, "Parallelism must be greater than 0");
checkArgument(rolloutTimeout > 0, "Rollout timeout must be greater than 0");
final long startTime = timeSupplier.get();
final RolloutOptions rolloutOptions =
RolloutOptions.newBuilder()
.setTimeout(timeout)
.setParallelism(parallelism)
.setMigrate(migrate)
.setOverlap(overlap)
.setToken(token)
.build();
final RollingUpdateResponse response = client.rollingUpdate(name, jobId, rolloutOptions).get();
if (response.getStatus() != RollingUpdateResponse.Status.OK) {
if (!json) {
out.println("Failed: " + response);
} else {
out.println(response.toJsonString());
}
return 1;
}
if (!json) {
out.println(
format(
"Rolling update%s started: %s -> %s "
+ "(parallelism=%d, timeout=%d, overlap=%b, token=%s)%s",
async ? " (async)" : "",
name,
jobId.toShortString(),
parallelism,
timeout,
overlap,
token,
async ? "" : "\n"));
}
final Map<String, Object> jsonOutput = Maps.newHashMap();
jsonOutput.put("parallelism", parallelism);
jsonOutput.put("timeout", timeout);
jsonOutput.put("overlap", overlap);
jsonOutput.put("token", token);
if (async) {
if (json) {
jsonOutput.put("status", response.getStatus());
out.println(Json.asStringUnchecked(jsonOutput));
}
return 0;
}
String error = "";
boolean failed = false;
boolean timedOut = false;
final Set<String> reported = Sets.newHashSet();
while (true) {
final DeploymentGroupStatusResponse status = client.deploymentGroupStatus(name).get();
if (status == null) {
failed = true;
error = "Failed to fetch deployment-group status";
break;
}
if (!jobId.equals(status.getDeploymentGroup().getJobId())) {
// Another rolling-update was started, overriding this one -- exit
failed = true;
error = "Deployment-group job id changed during rolling-update";
break;
}
if (!json) {
for (DeploymentGroupStatusResponse.HostStatus hostStatus : status.getHostStatuses()) {
final JobId hostJobId = hostStatus.getJobId();
final String host = hostStatus.getHost();
final TaskStatus.State state = hostStatus.getState();
final boolean done =
hostJobId != null && hostJobId.equals(jobId) && state == TaskStatus.State.RUNNING;
if (done && reported.add(host)) {
out.println(
format(
"%s -> %s (%d/%d)",
host, state, reported.size(), status.getHostStatuses().size()));
}
}
}
if (status.getStatus() != DeploymentGroupStatusResponse.Status.ROLLING_OUT) {
if (status.getStatus() == DeploymentGroupStatusResponse.Status.FAILED) {
failed = true;
error = status.getError();
}
break;
}
if (timeSupplier.get() - startTime > TimeUnit.MINUTES.toMillis(rolloutTimeout)) {
// Rollout timed out
timedOut = true;
break;
}
sleepFunction.sleep(POLL_INTERVAL_MILLIS);
}
final double duration = (timeSupplier.get() - startTime) / 1000.0;
if (json) {
if (failed) {
jsonOutput.put("status", "FAILED");
jsonOutput.put("error", error);
} else if (timedOut) {
jsonOutput.put("status", "TIMEOUT");
} else {
jsonOutput.put("status", "DONE");
}
jsonOutput.put("duration", duration);
out.println(Json.asStringUnchecked(jsonOutput));
} else {
out.println();
if (failed) {
out.println(format("Failed: %s", error));
} else if (timedOut) {
out.println("Timed out! (rolling-update still in progress)");
} else {
out.println("Done.");
}
out.println(format("Duration: %.2f s", duration));
}
return (failed || timedOut) ? 1 : 0;
}
