public CaliperConfig loadOrCreate() throws InvalidConfigurationException {
File configFile = options.caliperConfigFile();
ImmutableMap<String, String> defaults;
try {
defaults =
Util.loadProperties(
Util.resourceSupplier(CaliperConfig.class, "global-config.properties"));
} catch (IOException impossible) {
throw new AssertionError(impossible);
}
// TODO(kevinb): deal with migration issue from old-style .caliperrc
if (configFile.exists()) {
try {
ImmutableMap<String, String> user = Util.loadProperties(Files.asByteSource(configFile));
return new CaliperConfig(mergeProperties(options.configProperties(), user, defaults));
} catch (IOException keepGoing) {
}
}
ByteSource supplier = Util.resourceSupplier(CaliperConfig.class, "default-config.properties");
tryCopyIfNeeded(supplier, configFile);
ImmutableMap<String, String> user;
try {
user = Util.loadProperties(supplier);
} catch (IOException e) {
throw new AssertionError(e); // class path must be messed up
}
return new CaliperConfig(mergeProperties(options.configProperties(), user, defaults));
}
public static ExperimentModule forWorkerSpec(WorkerSpec spec) throws ClassNotFoundException {
Class<?> benchmarkClass = Util.loadClass(spec.benchmarkSpec.className());
Method benchmarkMethod =
findBenchmarkMethod(
benchmarkClass, spec.benchmarkSpec.methodName(), spec.methodParameterClasses);
benchmarkMethod.setAccessible(true);
return new ExperimentModule(benchmarkMethod, spec.benchmarkSpec.parameters());
}
@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();
}