import org.gradle.api.internal.GradleInternal;
import org.gradle.execution.plan.ExecutionPlan;
import org.gradle.execution.plan.FinalizedExecutionPlan;

import java.util.function.Consumer;

public interface BuildWorkPreparer {
    /**
     * Creates a new, empty plan.
     */
    ExecutionPlan newExecutionPlan();

    /**
     * Populates the given execution plan using the given action.
     */

import org.gradle.composite.internal.TaskIdentifier;
import org.gradle.execution.EntryTaskSelector;
import org.gradle.execution.plan.BuildWorkPlan;
import org.gradle.execution.plan.LocalTaskNode;
import org.gradle.execution.plan.QueryableExecutionPlan;
import org.gradle.execution.plan.TaskNode;
import org.gradle.execution.plan.TaskNodeFactory;
import org.gradle.internal.UncheckedException;
import org.gradle.internal.work.WorkerLeaseService;

    /**
     * Adds an entry task to the execution plan. If called multiple times then execution plan follows the method invocation order.
     *
     */
    void addEntryTask(Task task);

    /**
     * Adds entry tasks to the execution plan. No ordering can be assumed between the elements of the target collection. If called multiple times then execution plan follows the method invocation order.
     */

# Tâches d'arrière-plan

Vous pouvez définir des tâches d'arrière-plan qui seront exécutées après avoir retourné une réponse.

Ceci est utile pour les opérations qui doivent avoir lieu après une requête, mais où le client n'a pas réellement besoin d'attendre que l'opération soit terminée pour recevoir une réponse.

Cela comprend, par exemple :

* Les notifications par email envoyées après l'exécution d'une action :

    while (true) {
      if (routePlanner.isCanceled()) throw IOException("Canceled")

      try {
        val plan = routePlanner.plan()

        if (!plan.isReady) {
          val tcpConnectResult = plan.connectTcp()
          val connectResult =
            when {
              tcpConnectResult.isSuccess -> plan.connectTlsEtc()
              else -> tcpConnectResult
            }

        return buildOperationRunner.call(new ExecuteTasks(gradle, plan));
    }

    private class ExecuteTasks implements CallableBuildOperation<ExecutionResult<Void>> {
        private final GradleInternal gradle;
        private final FinalizedExecutionPlan plan;

        public ExecuteTasks(GradleInternal gradle, FinalizedExecutionPlan plan) {
            this.gradle = gradle;

import org.gradle.execution.plan.BuildWorkPlan
import org.gradle.execution.plan.DefaultExecutionPlan
import org.gradle.execution.plan.DefaultPlanExecutor
import org.gradle.execution.plan.ExecutionNodeAccessHierarchies
import org.gradle.execution.plan.ExecutionPlan
import org.gradle.execution.plan.FinalizedExecutionPlan
import org.gradle.execution.plan.Node
import org.gradle.execution.plan.NodeValidator

import org.gradle.execution.TaskSelection;
import org.gradle.execution.plan.BuildWorkPlan;
import org.gradle.execution.plan.ExecutionPlan;
import org.gradle.execution.plan.FinalizedExecutionPlan;
import org.gradle.execution.plan.LocalTaskNode;
import org.gradle.execution.plan.QueryableExecutionPlan;
import org.gradle.execution.plan.ScheduledWork;
import org.gradle.initialization.exception.ExceptionAnalyser;

    if (nextPlanIndex >= plans.size && autoGeneratePlans) addPlan()

    require(nextPlanIndex < plans.size) {
      "not enough plans! call addPlan() or set autoGeneratePlans=true in the test to set this up"
    }
    val result = plans[nextPlanIndex++]
    events += "take plan ${result.id}"

    if (result.yieldBeforePlanReturns) {
      taskFaker.yield()
    }

        // There is only a single threadsafe plugin here...
        assertEquals(plan.size() - 1, unSafePlugins.size());
    }

    @Test
    void testFindLastWhenFirst() throws Exception {
        MavenExecutionPlan plan = LifecycleExecutionPlanCalculatorStub.getProjectAExecutionPlan();

        ExecutionPlanItem beerPhase = plan.findLastInPhase(