| /* |
| * Copyright 2016 The Bazel Authors. All rights reserved. |
| * |
| * 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.idea.blaze.base.experiments; |
| |
| import com.google.common.collect.ImmutableMap; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.Map; |
| |
| class SystemPropertyExperimentLoader implements ExperimentLoader { |
| private static final String BLAZE_EXPERIMENT_OVERRIDE = "blaze.experiment."; |
| |
| @Override |
| public Map<String, String> getExperiments() { |
| // Cache the current values of the experiments so that they don't change in the |
| // current ExperimentScope. |
| ImmutableMap.Builder<String, String> mapBuilder = ImmutableMap.builder(); |
| System.getProperties() |
| .stringPropertyNames() |
| .stream() |
| .filter(name -> name.startsWith(BLAZE_EXPERIMENT_OVERRIDE)) |
| .forEach( |
| name -> |
| mapBuilder.put( |
| name.substring(BLAZE_EXPERIMENT_OVERRIDE.length()), System.getProperty(name))); |
| return mapBuilder.build(); |
| } |
| } |