| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.safeguard.impl.asynchronous; |
| |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.Executor; |
| |
| import javax.annotation.Priority; |
| import javax.enterprise.context.ApplicationScoped; |
| import javax.inject.Inject; |
| import javax.interceptor.AroundInvoke; |
| import javax.interceptor.Interceptor; |
| import javax.interceptor.InvocationContext; |
| |
| import org.apache.safeguard.impl.cache.Key; |
| import org.apache.safeguard.impl.cache.UnwrappedCache; |
| import org.apache.safeguard.impl.config.ConfigurationMapper; |
| import org.apache.safeguard.impl.customizable.Safeguard; |
| import org.apache.safeguard.impl.interceptor.IdGeneratorInterceptor; |
| import org.eclipse.microprofile.faulttolerance.Asynchronous; |
| |
| @Interceptor |
| @Asynchronous |
| @Priority(Interceptor.Priority.PLATFORM_AFTER + 6) |
| public class AsynchronousInterceptor extends BaseAsynchronousInterceptor { |
| @Inject |
| private Cache cache; |
| |
| @Override |
| public Executor getExecutor(final InvocationContext context) { |
| return cache.getExecutor(); |
| } |
| |
| @AroundInvoke |
| public Object async(final InvocationContext context) throws Exception { |
| final Map<Key, Boolean> models = cache.getEnabled(); |
| final Key cacheKey = new Key(context, cache.getUnwrappedCache().getUnwrappedCache()); |
| Boolean enabled = models.get(cacheKey); |
| if (enabled == null) { |
| enabled = cache.getMapper().isEnabled(context.getMethod(), Asynchronous.class); |
| models.putIfAbsent(cacheKey, enabled); |
| } |
| if (!enabled) { |
| return context.proceed(); |
| } |
| final String id = String.valueOf(context.getContextData().get(IdGeneratorInterceptor.class.getName())); |
| final String key = Asynchronous.class.getName() + ".skip_" + id; |
| if (context.getContextData().putIfAbsent(key, Boolean.TRUE) != null) { // bulkhead or so handling threading |
| return context.proceed(); |
| } |
| return around(context, id); |
| } |
| |
| @ApplicationScoped |
| public static class Cache { |
| private final Map<Key, Boolean> enabled = new ConcurrentHashMap<>(); |
| |
| @Inject |
| @Safeguard |
| private Executor executor; |
| |
| @Inject |
| private ConfigurationMapper mapper; |
| |
| @Inject |
| private UnwrappedCache unwrappedCache; |
| |
| public UnwrappedCache getUnwrappedCache() { |
| return unwrappedCache; |
| } |
| |
| public ConfigurationMapper getMapper() { |
| return mapper; |
| } |
| |
| public Executor getExecutor() { |
| return executor; |
| } |
| |
| public Map<Key, Boolean> getEnabled() { |
| return enabled; |
| } |
| } |
| } |