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/*
 * Copyright 2018 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.execution.plan;

import org.gradle.api.internal.TaskInternal;
import org.gradle.api.internal.project.ProjectInternal;
import org.gradle.api.internal.tasks.TaskExecuter;
import org.gradle.api.internal.tasks.TaskExecutionContext;
import org.gradle.api.internal.tasks.TaskStateInternal;
import org.gradle.api.internal.tasks.execution.DefaultTaskExecutionContext;
import org.gradle.execution.ProjectExecutionServiceRegistry;

public class LocalTaskNodeExecutor implements NodeExecutor {

    @Override
    public boolean execute(Node node, ProjectExecutionServiceRegistry services) {
        if (node instanceof LocalTaskNode) {
            LocalTaskNode localTaskNode = (LocalTaskNode) node;
            TaskInternal task = localTaskNode.getTask();
            TaskStateInternal state = task.getState();
            if (state.getExecuted()) {
                // Task has already been run. This can happen when the owning build is used both at configuration time and execution time
                // This should move earlier in task scheduling, so that a worker thread does not even bother trying to run this task
                return true;
            }
            TaskExecutionContext ctx = new DefaultTaskExecutionContext(localTaskNode);
            TaskExecuter taskExecuter = services.getProjectService((ProjectInternal) task.getProject(), TaskExecuter.class);
            assert taskExecuter != null;
            taskExecuter.execute(task, state, ctx);
            localTaskNode.getPostAction().execute(task);
            return true;
        } else {
            return false;
        }
    }
}