| /* |
| * Copyright 2012-present Facebook, 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.facebook.buck.rules; |
| |
| import com.google.common.base.Function; |
| import com.google.common.collect.Iterables; |
| import com.google.common.util.concurrent.Futures; |
| import com.google.common.util.concurrent.ListenableFuture; |
| |
| import java.util.List; |
| |
| public class Builder { |
| |
| private static final Builder instance = new Builder(); |
| |
| private Builder() {} |
| |
| public static Builder getInstance() { |
| return instance; |
| } |
| |
| public ListenableFuture<List<BuildRuleSuccess>> buildRules(Iterable<BuildRule> rules, |
| final BuildContext context) { |
| return Futures.allAsList(Iterables.transform( |
| rules, |
| new Function<BuildRule, ListenableFuture<BuildRuleSuccess>>() { |
| @Override |
| public ListenableFuture<BuildRuleSuccess> apply(BuildRule rule) { |
| return rule.build(context); |
| } |
| })); |
| } |
| } |