/*
* 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.project.taskfactory;
import org.gradle.api.Action;
import org.gradle.api.Task;
import org.gradle.api.internal.TaskInternal;
import org.gradle.api.internal.project.ProjectInternal;
import org.gradle.api.specs.Spec;
import org.gradle.api.specs.Specs;
import org.gradle.internal.Factory;
import org.gradle.internal.reflect.Instantiator;
import java.util.Map;
/**
* A {@link ITaskFactory} which determines task actions, inputs and outputs based on annotation attached to the task properties. Also provides some validation based on these annotations.
*/
public class AnnotationProcessingTaskFactory implements ITaskFactory {
private final TaskClassInfoStore taskClassInfoStore;
private final ITaskFactory taskFactory;
public AnnotationProcessingTaskFactory(TaskClassInfoStore taskClassInfoStore, ITaskFactory taskFactory) {
this.taskClassInfoStore = taskClassInfoStore;
this.taskFactory = taskFactory;
}
public ITaskFactory createChild(ProjectInternal project, Instantiator instantiator) {
return new AnnotationProcessingTaskFactory(taskClassInfoStore, taskFactory.createChild(project, instantiator));
}
public TaskInternal createTask(Map<String, ?> args) {
return process(taskFactory.createTask(args));
}
@Override
public <S extends TaskInternal> S create(String name, Class<S> type) {
return process(taskFactory.create(name, type));
}
private <S extends TaskInternal> S process(S task) {
TaskClassInfo taskClassInfo = taskClassInfoStore.getTaskClassInfo(task.getClass());
if (taskClassInfo.isIncremental()) {
// Add a dummy upToDateWhen spec: this will force TaskOutputs.hasOutputs() to be true.
task.getOutputs().upToDateWhen(new Spec<Task>() {
public boolean isSatisfiedBy(Task element) {
return true;
}
});
}
for (Factory<Action<Task>> actionFactory : taskClassInfo.getTaskActions()) {
task.prependParallelSafeAction(actionFactory.create());
}
TaskClassValidator validator = taskClassInfo.getValidator();
if (validator.hasAnythingToValidate()) {
task.prependParallelSafeAction(validator);
validator.addInputsAndOutputs(task);
}
// Enabled caching if task type is annotated with @CacheableTask
if (taskClassInfo.isCacheable()) {
task.getOutputs().cacheIf("Annotated with @CacheableTask", Specs.SATISFIES_ALL);
}
return task;
}
}