com.google.caliper.runner.worker.trial.TrialModule.java Source code

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Here is the source code for com.google.caliper.runner.worker.trial.TrialModule.java

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/*
 * Copyright (C) 2013 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.runner.worker.trial;

import static com.google.common.base.Preconditions.checkState;

import com.google.caliper.model.Host;
import com.google.caliper.model.Run;
import com.google.caliper.model.Scenario;
import com.google.caliper.model.Trial;
import com.google.caliper.runner.experiment.Experiment;
import com.google.caliper.runner.instrument.MeasurementCollectingVisitor;
import com.google.caliper.runner.target.Target;
import com.google.caliper.runner.worker.WorkerModule;
import com.google.caliper.runner.worker.WorkerProcessor;
import com.google.caliper.runner.worker.WorkerRunner;
import com.google.caliper.runner.worker.WorkerScoped;
import com.google.caliper.runner.worker.WorkerSpec;
import com.google.common.collect.ImmutableMap;
import dagger.Binds;
import dagger.Provides;
import dagger.producers.ProducerModule;
import dagger.producers.Produces;
import java.util.UUID;

/** Configuration for running a trial. */
@ProducerModule(includes = WorkerModule.class)
abstract class TrialModule {
    private TrialModule() {
    }

    @Produces
    static TrialResult trialResult(WorkerRunner<TrialResult> trialResultWorkerRunner) {
        return trialResultWorkerRunner.runWorker();
    }

    @Binds
    abstract WorkerProcessor<TrialResult> bindTrialProcessor(TrialProcessor processor);

    @Provides
    @WorkerScoped
    @TrialId
    static UUID provideTrialId() {
        return UUID.randomUUID();
    }

    @Provides
    static Target provideTarget(Experiment experiment) {
        return experiment.target();
    }

    @Binds
    abstract WorkerSpec bindWorkerSpec(TrialSpec spec);

    @Provides
    static MeasurementCollectingVisitor provideMeasurementCollectingVisitor(Experiment experiment) {
        return experiment.instrumentedMethod().getMeasurementCollectingVisitor();
    }

    @Provides
    static Host provideHost(Target target, ImmutableMap<Target, Host> hostsByTarget) {
        return hostsByTarget.get(target);
    }

    @Provides
    static TrialResultFactory provideTrialFactory(@TrialId final UUID trialId, final Run run, final Host host,
            final Experiment experiment) {
        return new TrialResultFactory() {
            @Override
            public TrialResult newTrialResult(VmDataCollectingVisitor dataCollectingVisitor,
                    MeasurementCollectingVisitor measurementCollectingVisitor) {
                checkState(measurementCollectingVisitor.isDoneCollecting());
                // TODO(lukes): should the trial messages be part of the Trial datastructure?  It seems like
                // the web UI could make use of them.
                return new TrialResult(
                        new Trial.Builder(trialId).run(run)
                                .instrumentSpec(experiment.instrumentedMethod().instrument().getSpec())
                                .scenario(new Scenario.Builder().host(host).vmSpec(dataCollectingVisitor.vmSpec())
                                        .benchmarkSpec(experiment.benchmarkSpec()))
                                .addAllMeasurements(measurementCollectingVisitor.getMeasurements()).build(),
                        experiment, measurementCollectingVisitor.getMessages());
            }
        };
    }
}