io.micronaut.scheduling.async.AsyncInterceptor Maven / Gradle / Ivy
/*
* Copyright 2017-2018 original 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 io.micronaut.scheduling.async;
import io.micronaut.aop.MethodInterceptor;
import io.micronaut.aop.MethodInvocationContext;
import io.micronaut.context.BeanLocator;
import io.micronaut.core.annotation.Internal;
import io.micronaut.core.type.ReturnType;
import io.micronaut.inject.qualifiers.Qualifiers;
import io.micronaut.scheduling.TaskExecutors;
import io.micronaut.scheduling.annotation.Async;
import io.micronaut.scheduling.exceptions.TaskExecutionException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.inject.Singleton;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.ExecutorService;
import java.util.function.BiConsumer;
/**
* Interceptor implementation for the {@link Async} annotation.
*
* @author graemerocher
* @since 1.0
*/
@Singleton
@Internal
public class AsyncInterceptor implements MethodInterceptor {
private static final Logger LOG = LoggerFactory.getLogger(TaskExecutors.class);
private final BeanLocator beanLocator;
/**
* Default constructor.
*
* @param beanLocator The bean constructor
*/
AsyncInterceptor(BeanLocator beanLocator) {
this.beanLocator = beanLocator;
}
@Override
public Object intercept(MethodInvocationContext context) {
String executorName = context.getValue(Async.class, String.class).orElse(TaskExecutors.SCHEDULED);
ExecutorService executorService = beanLocator.findBean(ExecutorService.class, Qualifiers.byName(executorName)).orElseThrow(() ->
new TaskExecutionException("No ExecutorService named [" + executorName + "] configured in application context")
);
ReturnType