| /* |
| * |
| * 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.qpid.server.message; |
| |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| import java.util.stream.StreamSupport; |
| |
| import org.apache.qpid.server.plugin.Pluggable; |
| import org.apache.qpid.server.plugin.QpidServiceLoader; |
| import org.apache.qpid.server.store.MessageStore; |
| |
| public interface ServerMessageMutatorFactory<T extends ServerMessage> extends Pluggable |
| { |
| ServerMessageMutator<T> create(T serverMessage, MessageStore messageStore); |
| |
| static <T extends ServerMessage> ServerMessageMutator<T> createMutator(T serverMessage, MessageStore messageStore) |
| { |
| final ServerMessageMutatorFactory<T> factory = |
| ServerMessageMutatorFactoryRegistry.get(serverMessage.getClass().getName()); |
| if (factory == null) |
| { |
| throw new IllegalStateException(String.format("Cannot find server message mutator for message class '%s'", |
| serverMessage.getClass().getName())); |
| } |
| return factory.create(serverMessage, messageStore); |
| } |
| |
| class ServerMessageMutatorFactoryRegistry |
| { |
| private static Map<String, ServerMessageMutatorFactory> MUTATOR_FACTORIES = |
| StreamSupport.stream(new QpidServiceLoader().instancesOf(ServerMessageMutatorFactory.class) |
| .spliterator(), false).collect( |
| Collectors.toMap(Pluggable::getType, i -> i)); |
| |
| private static ServerMessageMutatorFactory get(String type) |
| { |
| return MUTATOR_FACTORIES.get(type); |
| } |
| } |
| } |