com.facebook.buck.rules.Builder.java Source code

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Here is the source code for com.facebook.buck.rules.Builder.java

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/*
 * 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(final BuildEngine buildEngine,
            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 buildEngine.build(context, rule);
                    }
                }));
    }
}