com.google.devtools.build.skyframe.TrackingInvalidationReceiver.java Source code

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Here is the source code for com.google.devtools.build.skyframe.TrackingInvalidationReceiver.java

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// Copyright 2014 Google Inc. 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.devtools.build.skyframe;

import com.google.common.base.Preconditions;
import com.google.common.collect.Sets;

import java.util.Set;

/**
 * A testing utility to keep track of evaluation.
 */
public class TrackingInvalidationReceiver implements EvaluationProgressReceiver {
    public final Set<SkyValue> dirty = Sets.newConcurrentHashSet();
    public final Set<SkyValue> deleted = Sets.newConcurrentHashSet();
    public final Set<SkyKey> enqueued = Sets.newConcurrentHashSet();
    public final Set<SkyKey> evaluated = Sets.newConcurrentHashSet();

    @Override
    public void invalidated(SkyValue value, InvalidationState state) {
        switch (state) {
        case DELETED:
            dirty.remove(value);
            deleted.add(value);
            break;
        case DIRTY:
            dirty.add(value);
            Preconditions.checkState(!deleted.contains(value));
            break;
        default:
            throw new IllegalStateException();
        }
    }

    @Override
    public void enqueueing(SkyKey skyKey) {
        enqueued.add(skyKey);
    }

    @Override
    public void evaluated(SkyKey skyKey, SkyValue value, EvaluationState state) {
        evaluated.add(skyKey);
        if (value != null) {
            dirty.remove(value);
            deleted.remove(value);
        }
    }

    public void clear() {
        dirty.clear();
        deleted.clear();
        enqueued.clear();
        evaluated.clear();
    }
}