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      1 /*
      2  * Copyright (C) 2012 Google Inc.
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.google.caliper.runner;
     18 
     19 import com.google.caliper.config.CaliperConfig;
     20 import com.google.caliper.config.InvalidConfigurationException;
     21 import com.google.caliper.config.VmConfig;
     22 import com.google.caliper.model.Run;
     23 import com.google.caliper.options.CaliperOptions;
     24 import com.google.caliper.platform.Platform;
     25 import com.google.common.collect.ImmutableSet;
     26 
     27 import dagger.Module;
     28 import dagger.Provides;
     29 
     30 import org.joda.time.Instant;
     31 
     32 import java.util.UUID;
     33 
     34 import javax.inject.Singleton;
     35 
     36 /**
     37  * A Dagger module that configures bindings common to all {@link CaliperRun} implementations.
     38  */
     39 // TODO(gak): throwing providers for all of the things that throw
     40 @Module
     41 final class RunnerModule {
     42   @Provides
     43   static ImmutableSet<VirtualMachine> provideVirtualMachines(
     44       CaliperOptions options,
     45       CaliperConfig config,
     46       Platform platform)
     47       throws InvalidConfigurationException {
     48     ImmutableSet<String> vmNames = options.vmNames();
     49     ImmutableSet.Builder<VirtualMachine> builder = ImmutableSet.builder();
     50     if (vmNames.isEmpty()) {
     51       builder.add(new VirtualMachine("default", config.getDefaultVmConfig(platform)));
     52     } else {
     53       for (String vmName : vmNames) {
     54         VmConfig vmConfig = config.getVmConfig(platform, vmName);
     55         builder.add(new VirtualMachine(vmName, vmConfig));
     56       }
     57     }
     58     return builder.build();
     59   }
     60 
     61   @Provides
     62   static Instant provideInstant() {
     63     return Instant.now();
     64   }
     65 
     66   @Provides static CaliperRun provideCaliperRun(ExperimentingCaliperRun experimentingCaliperRun) {
     67     return experimentingCaliperRun;
     68   }
     69 
     70   @Provides @Singleton
     71   static Run provideRun(UUID uuid, CaliperOptions caliperOptions, Instant startTime) {
     72     return new Run.Builder(uuid).label(caliperOptions.runName()).startTime(startTime).build();
     73   }
     74 }
     75