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/*
* Copyright (C) 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.caliper.worker;
import com.google.caliper.Param;
import com.google.caliper.bridge.WorkerSpec;
import com.google.caliper.runner.Running;
import com.google.caliper.util.InvalidCommandException;
import com.google.caliper.util.Util;
import com.google.common.base.Ticker;
import com.google.common.collect.ImmutableMap;
import dagger.MapKey;
import dagger.Module;
import dagger.Provides;
import dagger.Provides.Type;
import java.util.Map;
import java.util.Random;
import javax.inject.Provider;
/**
* Binds classes necessary for the worker. Also manages the injection of {@link Param parameters}
* from the {@link WorkerSpec} into the benchmark.
*
* <p>TODO(gak): Ensure that each worker only has bindings for the objects it needs and not the
* objects required by different workers. (i.e. don't bind a Ticker if the worker is an allocation
* worker).
*/
@Module
final class WorkerModule {
private final Class<? extends Worker> workerClass;
private final ImmutableMap<String, String> workerOptions;
private final Class<?> benchmarkClassObject;
WorkerModule(WorkerSpec workerSpec) throws ClassNotFoundException {
this.workerClass = workerSpec.workerClass.asSubclass(Worker.class);
this.workerOptions = workerSpec.workerOptions;
benchmarkClassObject = Util.loadClass(workerSpec.benchmarkSpec.className());
}
@Provides
@Running.BenchmarkClass
Class<?> provideBenchmarkClassObject() {
return benchmarkClassObject;
}
@Provides
Worker provideWorker(Map<Class<? extends Worker>, Provider<Worker>> availableWorkers) {
Provider<Worker> workerProvider = availableWorkers.get(workerClass);
if (workerProvider == null) {
throw new InvalidCommandException("%s is not a supported worker (%s).",
workerClass, availableWorkers);
}
return workerProvider.get();
}
/**
* Specifies the {@link Class} object to use as a key in the map of available
* {@link Worker workers} passed to {@link #provideWorker(Map)}.
*/
@MapKey(unwrapValue = true)
public @interface WorkerClassKey {
Class<? extends Worker> value();
}
@Provides(type = Type.MAP)
@WorkerClassKey(ArbitraryMeasurementWorker.class)
static Worker provideArbitraryMeasurementWorker(ArbitraryMeasurementWorker impl) {
return impl;
}
@Provides(type = Type.MAP)
@WorkerClassKey(MicrobenchmarkAllocationWorker.class)
static Worker provideMicrobenchmarkAllocationWorker(MicrobenchmarkAllocationWorker impl) {
return impl;
}
@Provides(type = Type.MAP)
@WorkerClassKey(MacrobenchmarkWorker.class)
static Worker provideMacrobenchmarkWorker(MacrobenchmarkWorker impl) {
return impl;
}
@Provides(type = Type.MAP)
@WorkerClassKey(MacrobenchmarkAllocationWorker.class)
static Worker provideMacrobenchmarkAllocationWorker(MacrobenchmarkAllocationWorker impl) {
return impl;
}
@Provides(type = Type.MAP)
@WorkerClassKey(RuntimeWorker.Micro.class)
static Worker provideRuntimeWorkerMicro(RuntimeWorker.Micro impl) {
return impl;
}
@Provides(type = Type.MAP)
@WorkerClassKey(RuntimeWorker.Pico.class)
static Worker provideRuntimeWorkerPico(RuntimeWorker.Pico impl) {
return impl;
}
@Provides
static Ticker provideTicker() {
return Ticker.systemTicker();
}
@Provides
AllocationRecorder provideAllocationRecorder(
Provider<AllAllocationsRecorder> allAllocationsRecorderProvider,
Provider<AggregateAllocationsRecorder> aggregateAllocationsRecorderProvider) {
return Boolean.valueOf(workerOptions.get("trackAllocations"))
? allAllocationsRecorderProvider.get()
: aggregateAllocationsRecorderProvider.get();
}
@Provides
static Random provideRandom() {
return new Random();
}
@Provides
@WorkerOptions
Map<String, String> provideWorkerOptions() {
return workerOptions;
}
}
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