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

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

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/*
 * Copyright 2014-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.facebook.buck.model.BuildTarget;
import com.facebook.buck.util.HumanReadableException;
import com.google.common.collect.ImmutableSortedSet;

public class BuildRules {

    private BuildRules() {
        // Utility class.
    }

    public static ImmutableSortedSet<BuildRule> toBuildRulesFor(BuildTarget invokingBuildTarget,
            BuildRuleResolver ruleResolver, Iterable<BuildTarget> buildTargets, boolean allowNonExistentRule) {
        ImmutableSortedSet.Builder<BuildRule> buildRules = ImmutableSortedSet.naturalOrder();

        for (BuildTarget target : buildTargets) {
            BuildRule buildRule = ruleResolver.get(target);
            if (buildRule != null) {
                buildRules.add(buildRule);
            } else if (!allowNonExistentRule) {
                throw new HumanReadableException("No rule for %s found when processing %s", target,
                        invokingBuildTarget.getFullyQualifiedName());
            }
        }

        return buildRules.build();
    }
}