| /* |
| * 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.junit; |
| |
| import org.apache.meecrowave.Meecrowave; |
| import org.apache.meecrowave.internal.ClassLoaderLock; |
| import org.junit.rules.TestRule; |
| import org.junit.runner.Description; |
| import org.junit.runners.model.Statement; |
| |
| 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 java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import static java.util.stream.Collectors.toList; |
| |
| public abstract class MeecrowaveRuleBase<T extends MeecrowaveRuleBase> implements TestRule { |
| private final Collection<Object> toInject = new ArrayList<>(); |
| private final AtomicBoolean started = new AtomicBoolean(false); |
| private ClassLoader meecrowaveCL; |
| |
| @Override |
| public Statement apply(final Statement base, final Description description) { |
| return new Statement() { |
| @Override |
| public void evaluate() throws Throwable { |
| final Thread thread = Thread.currentThread(); |
| ClassLoader oldCL = thread.getContextClassLoader(); |
| boolean unlocked = false; |
| doLockContext(); |
| try { |
| ClassLoader newCl = getClassLoader(); |
| if (newCl != null) { |
| thread.setContextClassLoader(newCl); |
| } |
| try (final AutoCloseable closeable = onStart()) { |
| doUnlockContext(unlocked); |
| unlocked = true; |
| |
| started.set(true); |
| final Collection<CreationalContext<?>> contexts = toInject.stream() |
| .map(MeecrowaveRuleBase::doInject) |
| .collect(toList()); |
| try { |
| base.evaluate(); |
| } finally { |
| contexts.forEach(CreationalContext::release); |
| started.set(false); |
| } |
| } finally { |
| thread.setContextClassLoader(oldCL); |
| } |
| } finally { |
| doUnlockContext(unlocked); |
| } |
| } |
| }; |
| } |
| |
| protected void doUnlockContext(final boolean unlocked) { |
| if (!unlocked) { |
| ClassLoaderLock.LOCK.unlock(); |
| } |
| } |
| |
| protected void doLockContext() { |
| ClassLoaderLock.LOCK.lock(); |
| } |
| |
| private static CreationalContext<Object> doInject(final Object instance) { |
| final BeanManager bm = CDI.current().getBeanManager(); |
| final AnnotatedType<?> annotatedType = bm.createAnnotatedType(instance.getClass()); |
| final InjectionTarget injectionTarget = bm.createInjectionTarget(annotatedType); |
| final CreationalContext<Object> creationalContext = bm.createCreationalContext(null); |
| injectionTarget.inject(instance, creationalContext); |
| return creationalContext; |
| } |
| |
| public <T> T inject(final Object instance) { |
| if (started.get()) { |
| doInject(instance); // TODO: store cc to release it |
| } else { |
| toInject.add(instance); |
| } |
| return (T) this; |
| } |
| |
| public abstract Meecrowave.Builder getConfiguration(); |
| |
| protected abstract AutoCloseable onStart(); |
| |
| protected ClassLoader getClassLoader() { |
| if (meecrowaveCL == null) { |
| meecrowaveCL = ClassLoaderLock.getUsableContainerLoader(); |
| } |
| return meecrowaveCL; |
| } |
| } |