| /* |
| * 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.meecrowave.tomcat; |
| |
| import org.apache.tomcat.InstanceManager; |
| import org.apache.webbeans.servlet.WebBeansConfigurationListener; |
| |
| import javax.enterprise.context.spi.CreationalContext; |
| import javax.enterprise.inject.spi.AnnotatedType; |
| import javax.enterprise.inject.spi.BeanManager; |
| import javax.enterprise.inject.spi.CDI; |
| import javax.enterprise.inject.spi.InjectionTarget; |
| import javax.naming.NamingException; |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import static java.util.Optional.ofNullable; |
| |
| public class CDIInstanceManager implements InstanceManager { |
| private final Map<Object, Runnable> destroyables = new ConcurrentHashMap<>(); |
| |
| @Override |
| public Object newInstance(final Class<?> clazz) throws IllegalAccessException, InvocationTargetException, |
| NamingException, InstantiationException { |
| final Object newInstance = clazz.newInstance(); |
| newInstance(newInstance); |
| return newInstance; |
| } |
| |
| @Override |
| public Object newInstance(final String className) throws IllegalAccessException, InvocationTargetException, |
| NamingException, InstantiationException, ClassNotFoundException { |
| return newInstance(className, Thread.currentThread().getContextClassLoader()); |
| } |
| |
| @Override |
| public Object newInstance(final String fqcn, final ClassLoader classLoader) throws IllegalAccessException, |
| InvocationTargetException, NamingException, InstantiationException, ClassNotFoundException { |
| return newInstance(classLoader.loadClass(fqcn)); |
| } |
| |
| @Override |
| public void newInstance(final Object o) throws IllegalAccessException, InvocationTargetException, NamingException { |
| if (WebBeansConfigurationListener.class.isInstance(o) || o.getClass().getName().startsWith("org.apache.catalina.servlets.")) { |
| return; |
| } |
| |
| final BeanManager bm = CDI.current().getBeanManager(); |
| final AnnotatedType<?> annotatedType = bm.createAnnotatedType(o.getClass()); |
| final InjectionTarget injectionTarget = bm.createInjectionTarget(annotatedType); |
| final CreationalContext<Object> creationalContext = bm.createCreationalContext(null); |
| injectionTarget.inject(o, creationalContext); |
| try { |
| injectionTarget.postConstruct(o); |
| } catch (final RuntimeException e) { |
| creationalContext.release(); |
| throw e; |
| } |
| destroyables.put(o, () -> { |
| try { |
| injectionTarget.preDestroy(o); |
| } finally { |
| creationalContext.release(); |
| } |
| }); |
| } |
| |
| @Override |
| public void destroyInstance(final Object o) throws IllegalAccessException, InvocationTargetException { |
| ofNullable(destroyables.remove(o)).ifPresent(Runnable::run); |
| } |
| } |