Package org.gradle.api.internal.tasks

Source Code of org.gradle.api.internal.tasks.DefaultTaskContainer

/*
* Copyright 2010 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.api.internal.tasks;

import groovy.lang.Closure;
import org.apache.commons.lang.StringUtils;
import org.gradle.api.InvalidUserDataException;
import org.gradle.api.Project;
import org.gradle.api.Task;
import org.gradle.api.UnknownTaskException;
import org.gradle.api.internal.ClassGenerator;
import org.gradle.api.internal.project.ProjectInternal;
import org.gradle.api.internal.project.taskfactory.ITaskFactory;
import org.gradle.util.GUtil;

import java.util.HashMap;
import java.util.Map;

public class DefaultTaskContainer extends DefaultTaskCollection<Task> implements TaskContainerInternal {
    private final ITaskFactory taskFactory;

    public DefaultTaskContainer(ProjectInternal project, ClassGenerator classGenerator, ITaskFactory taskFactory) {
        super(Task.class, classGenerator, project);
        this.taskFactory = taskFactory;
    }

    public Task add(Map<String, ?> options) {
        Map<String, Object> mutableOptions = new HashMap<String, Object>(options);

        Object replaceStr = mutableOptions.remove(Task.TASK_OVERWRITE);
        boolean replace = replaceStr != null && "true".equals(replaceStr.toString());

        Task task = taskFactory.createTask(project, mutableOptions);
        String name = task.getName();

        if (!replace && findByNameWithoutRules(name) != null) {
            throw new InvalidUserDataException(String.format(
                    "Cannot add %s as a task with that name already exists.", task));
        }

        addObject(name, task);

        return task;
    }

    public Task add(Map<String, ?> options, Closure configureClosure) throws InvalidUserDataException {
        return add(options).configure(configureClosure);
    }

    public <T extends Task> T add(String name, Class<T> type) {
        return type.cast(add(GUtil.map(Task.TASK_NAME, name, Task.TASK_TYPE, type)));
    }

    public Task add(String name) {
        return add(GUtil.map(Task.TASK_NAME, name));
    }

    public Task replace(String name) {
        return add(GUtil.map(Task.TASK_NAME, name, Task.TASK_OVERWRITE, true));
    }

    public Task add(String name, Closure configureClosure) {
        return add(GUtil.map(Task.TASK_NAME, name)).configure(configureClosure);
    }

    public <T extends Task> T replace(String name, Class<T> type) {
        return type.cast(add(GUtil.map(Task.TASK_NAME, name, Task.TASK_TYPE, type, Task.TASK_OVERWRITE, true)));
    }

    public Task findByPath(String path) {
        if (!GUtil.isTrue(path)) {
            throw new InvalidUserDataException("A path must be specified!");
        }
        if (!path.contains(Project.PATH_SEPARATOR)) {
            return findByName(path);
        }

        String projectPath = StringUtils.substringBeforeLast(path, Project.PATH_SEPARATOR);
        Project project = this.project.findProject(!GUtil.isTrue(projectPath) ? Project.PATH_SEPARATOR : projectPath);
        if (project == null) {
            return null;
        }
        return project.getTasks().findByName(StringUtils.substringAfterLast(path, Project.PATH_SEPARATOR));
    }

    public Task resolveTask(Object path) {
        if (!GUtil.isTrue(path)) {
            throw new InvalidUserDataException("A path must be specified!");
        }
        return getByPath(path.toString());
    }

    public Task getByPath(String path) throws UnknownTaskException {
        Task task = findByPath(path);
        if (task == null) {
            throw new UnknownTaskException(String.format("Task with path '%s' not found in %s.", path, project));
        }
        return task;
    }
}
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