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webbeans-ri/src/main/java/org/jboss/webbeans/BeanValidator.java
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| /* | ||
| * JBoss, Home of Professional Open Source | ||
| * Copyright 2008, Red Hat Middleware LLC, and individual contributors | ||
| * by the @authors tag. See the copyright.txt in the distribution for a | ||
| * full listing of individual contributors. | ||
| * | ||
| * 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 org.jboss.webbeans; | ||
|
|
||
| import java.lang.annotation.Annotation; | ||
| import java.util.ArrayList; | ||
| import java.util.Comparator; | ||
| import java.util.List; | ||
| import java.util.Set; | ||
|
|
||
| import javax.webbeans.AmbiguousDependencyException; | ||
| import javax.webbeans.DefinitionException; | ||
| import javax.webbeans.InconsistentSpecializationException; | ||
| import javax.webbeans.InjectionPoint; | ||
| import javax.webbeans.New; | ||
| import javax.webbeans.NullableDependencyException; | ||
| import javax.webbeans.UnproxyableDependencyException; | ||
| import javax.webbeans.UnsatisfiedDependencyException; | ||
| import javax.webbeans.UnserializableDependencyException; | ||
| import javax.webbeans.manager.Bean; | ||
|
|
||
| import org.jboss.webbeans.bean.AbstractBean; | ||
| import org.jboss.webbeans.bean.NewEnterpriseBean; | ||
| import org.jboss.webbeans.bean.NewSimpleBean; | ||
| import org.jboss.webbeans.util.Beans; | ||
| import org.jboss.webbeans.util.ListComparator; | ||
| import org.jboss.webbeans.util.Proxies; | ||
| import org.jboss.webbeans.util.Reflections; | ||
|
|
||
| /** | ||
| * Checks a list of beans for DeploymentExceptions and their subclasses | ||
| * | ||
| * @author Nicklas Karlsson | ||
| * | ||
| */ | ||
| public class BeanValidator | ||
| { | ||
|
|
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| private final ManagerImpl manager; | ||
|
|
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| public BeanValidator(ManagerImpl manager) | ||
| { | ||
| this.manager = manager; | ||
| } | ||
|
|
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| /** | ||
| * Validates the beans | ||
| * | ||
| * @param beans The beans to validate | ||
| */ | ||
| public void validate(List<Bean<?>> beans) | ||
| { | ||
| final List<Bean<?>> specializedBeans = new ArrayList<Bean<?>>(); | ||
| for (Bean<?> bean : beans) | ||
| { | ||
| for (InjectionPoint injectionPoint : bean.getInjectionPoints()) | ||
| { | ||
| if (injectionPoint.getType() instanceof Class) | ||
| { | ||
| Class<?> type = (Class<?>) injectionPoint.getType(); | ||
| if (injectionPoint.getAnnotation(New.class) != null && injectionPoint.getBindings().size() > 1) | ||
| { | ||
| throw new DefinitionException("The injection point " + injectionPoint + " is annotated with @New which cannot be combined with other binding types"); | ||
| } | ||
| Annotation[] bindings = injectionPoint.getBindings().toArray(new Annotation[0]); | ||
| Set<?> resolvedBeans = manager.resolveByType(type, bindings); | ||
| if (resolvedBeans.isEmpty()) | ||
| { | ||
| throw new UnsatisfiedDependencyException("The injection point " + injectionPoint + " has unsatisfied dependencies for type " + type + " and binding types " + bindings + " in " + bean); | ||
| } | ||
| if (resolvedBeans.size() > 1) | ||
| { | ||
| throw new AmbiguousDependencyException("The injection point " + injectionPoint + " has ambiguos dependencies for type " + type + " and binding types " + bindings + " in " + bean); | ||
| } | ||
| Bean<?> resolvedBean = (Bean<?>) resolvedBeans.iterator().next(); | ||
| if (MetaDataCache.instance().getScopeModel(resolvedBean.getScopeType()).isNormal() && !Proxies.isClassProxyable(type)) | ||
| { | ||
| throw new UnproxyableDependencyException("The injection point " + injectionPoint + " has non-proxyable dependencies"); | ||
| } | ||
| if (Reflections.isPrimitive((Class<?>) injectionPoint.getType()) && resolvedBean.isNullable()) | ||
| { | ||
| throw new NullableDependencyException("The injection point " + injectionPoint + " has nullable dependencies"); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| throw new UnsupportedOperationException("Not yet implemented"); | ||
| } | ||
| } | ||
| if (bean instanceof AbstractBean && !(bean instanceof NewSimpleBean) && !(bean instanceof NewEnterpriseBean)) | ||
| { | ||
| AbstractBean<?, ?> abstractBean = (AbstractBean<?, ?>) bean; | ||
| if (abstractBean.isSpecializing()) | ||
| { | ||
| if (!hasHigherPrecedence(bean.getDeploymentType(), abstractBean.getSpecializedBean().getDeploymentType())) | ||
| { | ||
| throw new InconsistentSpecializationException("Specializing bean must have a higher precedence deployment type than the specialized bean"); | ||
| } | ||
| if (specializedBeans.contains(abstractBean.getSpecializedBean())) | ||
| { | ||
| throw new InconsistentSpecializationException("Two beans cannot specialize the same bean"); | ||
| } | ||
| specializedBeans.add(abstractBean.getSpecializedBean()); | ||
| } | ||
| } | ||
| if (Beans.isPassivatingBean(bean) && !bean.isSerializable()) | ||
| { | ||
| throw new UnserializableDependencyException("The bean " + bean + " declares a passivating scopes but has non-serializable dependencies"); | ||
| } | ||
| boolean normalScoped = MetaDataCache.instance().getScopeModel(bean.getScopeType()).isNormal(); | ||
| if (normalScoped && !Beans.isBeanProxyable(bean)) | ||
| { | ||
| throw new UnproxyableDependencyException("Normal scoped bean " + bean + " is not proxyable"); | ||
| } | ||
| } | ||
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|
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| } | ||
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| private boolean hasHigherPrecedence(Class<? extends Annotation> deploymentType, Class<? extends Annotation> otherDeploymentType) | ||
| { | ||
| Comparator<Class<? extends Annotation>> comparator = new ListComparator<Class<? extends Annotation>>(manager.getEnabledDeploymentTypes()); | ||
| return comparator.compare(deploymentType, otherDeploymentType) > 0; | ||
| } | ||
|
|
||
|
|
||
| } |
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