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/*
 * Copyright 2015 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.tooling.internal.provider.runner;

import org.gradle.api.internal.GradleInternal;
import org.gradle.initialization.BuildEventConsumer;
import org.gradle.internal.invocation.BuildAction;
import org.gradle.internal.invocation.BuildActionRunner;
import org.gradle.internal.invocation.BuildController;
import org.gradle.tooling.internal.provider.BuildClientSubscriptions;
import org.gradle.tooling.internal.provider.SubscribableBuildAction;

public class SubscribableBuildActionRunner implements BuildActionRunner {
    private BuildActionRunner delegate;

    public SubscribableBuildActionRunner(BuildActionRunner delegate) {
        this.delegate = delegate;
    }

    private void registerListenersForClientSubscriptions(BuildClientSubscriptions clientSubscriptions, GradleInternal gradle) {
        BuildEventConsumer eventConsumer = gradle.getServices().get(BuildEventConsumer.class);
        if (clientSubscriptions.isSendTestProgressEvents()) {
            gradle.addListener(new ClientForwardingTestListener(eventConsumer, clientSubscriptions));
        }
        if (clientSubscriptions.isSendTaskProgressEvents()) {
            gradle.addListener(new ClientForwardingTaskListener(eventConsumer, clientSubscriptions));
        }
        if (clientSubscriptions.isSendBuildProgressEvents()) {
            gradle.addListener(new ClientForwardingBuildListener(eventConsumer));
        }
    }

    @Override
    public void run(BuildAction action, BuildController buildController) {
        if (!(action instanceof SubscribableBuildAction)) {
            return;
        }
        GradleInternal gradle = buildController.getGradle();
        SubscribableBuildAction subscribableBuildAction = (SubscribableBuildAction) action;

        // register listeners that dispatch all progress via the registered BuildEventConsumer instance,
        // this allows to send progress events back to the DaemonClient (via short-cut)
        registerListenersForClientSubscriptions(subscribableBuildAction.getClientSubscriptions(), gradle);
        delegate.run(action, buildController);
    }
}