gradle-master/subprojects/execution/src/main/java/org/gradle/internal/execution/steps/legacy/MarkSnapshottingInputsStartedStep.java
/*
 * Copyright 2019 the original author or 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 org.gradle.internal.execution.steps.legacy;

import org.gradle.internal.execution.UnitOfWork;
import org.gradle.internal.execution.steps.Context;
import org.gradle.internal.execution.steps.Result;
import org.gradle.internal.execution.steps.Step;

/**
 * This is a temporary measure for Gradle tasks to track a legacy measurement of all input snapshotting together.
 */
public class MarkSnapshottingInputsStartedStep<C extends Context, R extends Result> implements Step<C, R> {
    private final Step<? super C, ? extends R> delegate;

    public MarkSnapshottingInputsStartedStep(Step<? super C, ? extends R> delegate) {
        this.delegate = delegate;
    }

    @Override
    public R execute(UnitOfWork work, C context) {
        work.markLegacySnapshottingInputsStarted();
        try {
            return delegate.execute(work, context);
        } finally {
            work.ensureLegacySnapshottingInputsClosed();
        }
    }
}
