dagger.internal.codegen.DaggerStatistics.java Source code

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Here is the source code for dagger.internal.codegen.DaggerStatistics.java

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/*
 * Copyright (C) 2018 The Dagger Authors.
 *
 * 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 dagger.internal.codegen;

import com.google.common.base.Preconditions;
import com.google.common.base.Stopwatch;
import com.google.common.base.Ticker;
import javax.inject.Inject;
import javax.inject.Singleton;

@Singleton // for state sharing
final class DaggerStatistics {

    private final Stopwatch totalRuntimeStopwatch;

    @Inject
    DaggerStatistics(Ticker ticker) {
        totalRuntimeStopwatch = Stopwatch.createUnstarted(ticker);
    }

    void processingStarted() {
        Preconditions.checkState(!totalRuntimeStopwatch.isRunning());
        totalRuntimeStopwatch.start();
    }

    void processingStopped() {
        Preconditions.checkState(totalRuntimeStopwatch.isRunning());
        totalRuntimeStopwatch.stop();

    }
}