@Provides
static ImmutableSet<Instrument> provideInstruments(
CaliperOptions options,
final CaliperConfig config,
Map<Class<? extends Instrument>, Provider<Instrument>> availableInstruments,
Platform platform,
@Stderr PrintWriter stderr)
throws InvalidCommandException {
ImmutableSet.Builder<Instrument> builder = ImmutableSet.builder();
ImmutableSet<String> configuredInstruments = config.getConfiguredInstruments();
for (final String instrumentName : options.instrumentNames()) {
if (!configuredInstruments.contains(instrumentName)) {
throw new InvalidCommandException(
"%s is not a configured instrument (%s). "
+ "use --print-config to see the configured instruments.",
instrumentName, configuredInstruments);
}
final InstrumentConfig instrumentConfig = config.getInstrumentConfig(instrumentName);
String className = instrumentConfig.className();
try {
Class<? extends Instrument> clazz =
Util.lenientClassForName(className).asSubclass(Instrument.class);
Provider<Instrument> instrumentProvider = availableInstruments.get(clazz);
if (instrumentProvider == null) {
throw new InvalidInstrumentException("Instrument %s not supported", className);
}
// Make sure that the instrument is supported on the platform.
if (platform.supports(clazz)) {
Instrument instrument = instrumentProvider.get();
InstrumentInjectorModule injectorModule =
new InstrumentInjectorModule(instrumentConfig, instrumentName);
InstrumentComponent instrumentComponent =
DaggerInstrumentComponent.builder().instrumentInjectorModule(injectorModule).build();
instrumentComponent.injectInstrument(instrument);
builder.add(instrument);
} else {
stderr.format(
"Instrument %s not supported on %s, ignoring\n", className, platform.name());
}
} catch (ClassNotFoundException e) {
throw new InvalidCommandException("Cannot find instrument class '%s'", className);
}
}
return builder.build();
}
@Provides
static ImmutableSet<ResultProcessor> provideResultProcessors(
CaliperConfig config,
Map<Class<? extends ResultProcessor>, Provider<ResultProcessor>> availableProcessors) {
ImmutableSet.Builder<ResultProcessor> builder = ImmutableSet.builder();
for (Class<? extends ResultProcessor> processorClass : config.getConfiguredResultProcessors()) {
Provider<ResultProcessor> resultProcessorProvider = availableProcessors.get(processorClass);
ResultProcessor resultProcessor =
resultProcessorProvider == null
? ResultProcessorCreator.createResultProcessor(processorClass)
: resultProcessorProvider.get();
builder.add(resultProcessor);
}
return builder.build();
}
@Provides
static ListeningExecutorService provideExecutorService(CaliperConfig config) {
int poolSize = Integer.parseInt(config.properties().get(RUNNER_MAX_PARALLELISM_OPTION));
return MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(poolSize));
}