Paul Duffin | e236301 | 2015-11-30 16:20:41 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2011 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 static com.google.common.base.Preconditions.checkNotNull; |
| 20 | |
| 21 | import com.google.caliper.runner.Instrument.Instrumentation; |
| 22 | import com.google.common.base.MoreObjects; |
| 23 | import com.google.common.base.Objects; |
| 24 | import com.google.common.collect.ImmutableSortedMap; |
| 25 | |
| 26 | import java.util.Map; |
| 27 | |
| 28 | /** |
| 29 | * A single "premise" for making benchmark measurements: which class and method to invoke, which VM |
| 30 | * to use, which choices for user parameters and vmArguments to fill in and which instrument to use |
| 31 | * to measure. A caliper run will compute all possible scenarios using |
| 32 | * {@link FullCartesianExperimentSelector}, and will run one or more trials of each. |
| 33 | */ |
| 34 | final class Experiment { |
| 35 | private final Instrumentation instrumentation; |
| 36 | private final VirtualMachine vm; |
| 37 | private final ImmutableSortedMap<String, String> userParameters; |
| 38 | |
| 39 | Experiment( |
| 40 | Instrumentation instrumentation, |
| 41 | Map<String, String> userParameters, |
| 42 | VirtualMachine vm) { |
| 43 | this.instrumentation = checkNotNull(instrumentation); |
| 44 | this.userParameters = ImmutableSortedMap.copyOf(userParameters); |
| 45 | this.vm = checkNotNull(vm); |
| 46 | } |
| 47 | |
| 48 | Instrumentation instrumentation() { |
| 49 | return instrumentation; |
| 50 | } |
| 51 | |
| 52 | ImmutableSortedMap<String, String> userParameters() { |
| 53 | return userParameters; |
| 54 | } |
| 55 | |
| 56 | VirtualMachine vm() { |
| 57 | return vm; |
| 58 | } |
| 59 | |
| 60 | @Override public boolean equals(Object object) { |
| 61 | if (object instanceof Experiment) { |
| 62 | Experiment that = (Experiment) object; |
| 63 | return this.instrumentation.equals(that.instrumentation) |
| 64 | && this.vm.equals(that.vm) |
| 65 | && this.userParameters.equals(that.userParameters); |
| 66 | } |
| 67 | return false; |
| 68 | } |
| 69 | |
| 70 | @Override public int hashCode() { |
| 71 | return Objects.hashCode(instrumentation, vm, userParameters); |
| 72 | } |
| 73 | |
| 74 | @Override public String toString() { |
| 75 | return MoreObjects.toStringHelper("") |
| 76 | .add("instrument", instrumentation.instrument()) |
| 77 | .add("benchmarkMethod", instrumentation.benchmarkMethod.getName()) |
| 78 | .add("vm", vm.name) |
| 79 | .add("parameters", userParameters) |
| 80 | .toString(); |
| 81 | } |
| 82 | } |