| /* |
| * 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.openwebbeans; |
| |
| import org.apache.meecrowave.Meecrowave; |
| import org.apache.webbeans.annotation.DefaultLiteral; |
| import org.apache.webbeans.config.WebBeansContext; |
| import org.apache.webbeans.configurator.BeanConfiguratorImpl; |
| import org.apache.webbeans.container.BeanManagerImpl; |
| import org.apache.webbeans.servlet.WebBeansConfigurationListener; |
| |
| import javax.enterprise.context.ApplicationScoped; |
| import javax.enterprise.inject.spi.Bean; |
| import javax.enterprise.inject.spi.Extension; |
| import javax.enterprise.inject.spi.configurator.BeanConfigurator; |
| import javax.servlet.DispatcherType; |
| import javax.servlet.Filter; |
| import javax.servlet.FilterRegistration; |
| import javax.servlet.ServletContainerInitializer; |
| import javax.servlet.ServletContext; |
| import javax.servlet.ServletContextEvent; |
| import javax.servlet.ServletException; |
| import java.util.EnumSet; |
| import java.util.Set; |
| import java.util.function.Consumer; |
| |
| public class OWBAutoSetup implements ServletContainerInitializer { |
| @Override |
| public void onStartup(final Set<Class<?>> c, final ServletContext ctx) throws ServletException { |
| final Meecrowave.Builder builder = Meecrowave.Builder.class.cast(ctx.getAttribute("meecrowave.configuration")); |
| final Meecrowave instance = Meecrowave.class.cast(ctx.getAttribute("meecrowave.instance")); |
| if (builder.isCdiConversation()) { |
| try { |
| final Class<? extends Filter> clazz = (Class<? extends Filter>) OWBAutoSetup.class.getClassLoader() |
| .loadClass("org.apache.webbeans.web.context.WebConversationFilter"); |
| final FilterRegistration.Dynamic filter = ctx.addFilter("owb-conversation", clazz); |
| filter.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), false, "/*"); |
| } catch (final Exception e) { |
| // no-op |
| } |
| } |
| |
| // eager boot to let injections work in listeners |
| final EagerBootListener bootListener = new EagerBootListener(instance); |
| bootListener.doContextInitialized(new ServletContextEvent(ctx)); |
| ctx.addListener(bootListener); |
| } |
| |
| public static class EagerBootListener extends WebBeansConfigurationListener implements Extension { |
| private final Meecrowave meecrowave; |
| |
| private EagerBootListener(final Meecrowave meecrowave) { |
| this.meecrowave = meecrowave; |
| } |
| |
| @Override |
| public void contextInitialized(final ServletContextEvent event) { |
| // skip |
| } |
| |
| private void doContextInitialized(final ServletContextEvent event) { |
| try { |
| final WebBeansContext instance = WebBeansContext.getInstance(); |
| customizeContext(instance); |
| } catch (final IllegalStateException ise) { |
| // lifecycle not supporting it |
| } |
| super.contextInitialized(event); |
| } |
| |
| private void customizeContext(final WebBeansContext instance) { |
| final BeanManagerImpl beanManager = instance.getBeanManagerImpl(); |
| |
| beanManager.addInternalBean(newBean(instance, configurator -> |
| configurator.beanClass(Meecrowave.Builder.class) |
| .scope(ApplicationScoped.class) |
| .qualifiers(DefaultLiteral.INSTANCE) |
| .types(Meecrowave.Builder.class, Object.class) |
| .createWith(cc -> meecrowave.getConfiguration()))); |
| beanManager.addInternalBean(newBean(instance, configurator -> |
| configurator.beanClass(Meecrowave.class) |
| .scope(ApplicationScoped.class) |
| .qualifiers(DefaultLiteral.INSTANCE) |
| .types(Meecrowave.class, AutoCloseable.class, Object.class) |
| .createWith(cc -> meecrowave))); |
| } |
| |
| private <T> Bean<?> newBean(final WebBeansContext instance, final Consumer<BeanConfigurator<T>> configurer) { |
| final BeanConfiguratorImpl<T> meecrowaveBeanBuilder = new BeanConfiguratorImpl<>(instance); |
| configurer.accept(meecrowaveBeanBuilder); |
| return meecrowaveBeanBuilder.getBean(); |
| } |
| } |
| } |