| /* |
| * 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.deltaspike.core.impl.exception.control; |
| |
| import org.apache.deltaspike.core.api.exception.control.HandlerMethod; |
| import org.apache.deltaspike.core.api.literal.AnyLiteral; |
| import org.apache.deltaspike.core.util.HierarchyDiscovery; |
| |
| import javax.enterprise.inject.Typed; |
| import javax.enterprise.inject.spi.BeanManager; |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.Type; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.TreeSet; |
| import java.util.logging.Logger; |
| |
| /** |
| * Basic implementation for {@link HandlerMethodStorage}. |
| */ |
| @SuppressWarnings("CdiManagedBeanInconsistencyInspection") |
| @Typed() |
| class HandlerMethodStorageImpl implements HandlerMethodStorage |
| { |
| private final Map<Type, Collection<HandlerMethod<? extends Throwable>>> allHandlers; |
| |
| private Logger log = Logger.getLogger(HandlerMethodStorageImpl.class.toString()); |
| |
| HandlerMethodStorageImpl(Map<Type, Collection<HandlerMethod<? extends Throwable>>> allHandlers) |
| { |
| this.allHandlers = allHandlers; |
| } |
| |
| @Override |
| public <T extends Throwable> void registerHandlerMethod(HandlerMethod<T> handlerMethod) |
| { |
| log.fine(String.format("Adding handler %s to known handlers", handlerMethod)); |
| if (allHandlers.containsKey(handlerMethod.getExceptionType())) |
| { |
| allHandlers.get(handlerMethod.getExceptionType()).add(handlerMethod); |
| } |
| else |
| { |
| allHandlers.put(handlerMethod.getExceptionType(), |
| new HashSet<HandlerMethod<? extends Throwable>>(Collections.singleton(handlerMethod))); |
| } |
| } |
| |
| @Override |
| public Collection<HandlerMethod<? extends Throwable>> getHandlersForException(Type exceptionClass, |
| BeanManager bm, |
| Set<Annotation> handlerQualifiers, |
| boolean isBefore) |
| { |
| final Collection<HandlerMethod<? extends Throwable>> returningHandlers = |
| new TreeSet<HandlerMethod<? extends Throwable>>(new ExceptionHandlerComparator()); |
| final HierarchyDiscovery h = new HierarchyDiscovery(exceptionClass); |
| final Set<Type> closure = h.getTypeClosure(); |
| |
| for (Type hierarchyType : closure) |
| { |
| if (allHandlers.get(hierarchyType) != null) |
| { |
| for (HandlerMethod<?> handler : allHandlers.get(hierarchyType)) |
| { |
| if (handler.isBeforeHandler() && isBefore) |
| { |
| if (handler.getQualifiers().contains(new AnyLiteral())) |
| { |
| returningHandlers.add(handler); |
| } |
| else |
| { |
| if (!handlerQualifiers.isEmpty() && handlerQualifiers.equals(handler.getQualifiers())) |
| { |
| returningHandlers.add(handler); |
| } |
| } |
| } |
| else if (!handler.isBeforeHandler() && !isBefore) |
| { |
| if (handler.getQualifiers().contains(new AnyLiteral())) |
| { |
| returningHandlers.add(handler); |
| } |
| else |
| { |
| if (!handlerQualifiers.isEmpty() && handlerQualifiers.equals(handler.getQualifiers())) |
| { |
| returningHandlers.add(handler); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| log.fine(String.format("Found handlers %s for exception type %s, qualifiers %s", returningHandlers, |
| exceptionClass, handlerQualifiers)); |
| return Collections.unmodifiableCollection(returningHandlers); |
| } |
| } |