| /** |
| * 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.camel.impl; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.camel.NoSuchBeanException; |
| import org.apache.camel.spi.Registry; |
| |
| /** |
| * This registry will look up the object with the sequence of the registry list until it finds the Object. |
| */ |
| public class CompositeRegistry implements Registry { |
| private List<Registry> registryList; |
| |
| public CompositeRegistry() { |
| registryList = new ArrayList<Registry>(); |
| } |
| |
| public CompositeRegistry(List<Registry> registries) { |
| registryList = registries; |
| } |
| |
| public void addRegistry(Registry registry) { |
| registryList.add(registry); |
| } |
| |
| public <T> T lookup(String name, Class<T> type) { |
| T answer = null; |
| for (Registry registry : registryList) { |
| try { |
| answer = registry.lookup(name, type); |
| if (answer != null) { |
| break; |
| } |
| } catch (Throwable e) { |
| // do not double wrap the exception |
| if (e instanceof NoSuchBeanException) { |
| throw (NoSuchBeanException) e; |
| } |
| throw new NoSuchBeanException(name, "Cannot lookup: " + name + " from registry: " + registry |
| + " with expected type: " + type + " due: " + e.getMessage(), e); |
| } |
| } |
| return answer; |
| } |
| |
| public Object lookup(String name) { |
| Object answer = null; |
| for (Registry registry : registryList) { |
| answer = registry.lookup(name); |
| if (answer != null) { |
| break; |
| } |
| } |
| return answer; |
| } |
| |
| @SuppressWarnings("unchecked") |
| public <T> Map<String, T> lookupByType(Class<T> type) { |
| Map<String, T> answer = Collections.EMPTY_MAP; |
| for (Registry registry : registryList) { |
| answer = registry.lookupByType(type); |
| if (answer != Collections.EMPTY_MAP) { |
| break; |
| } |
| } |
| return answer; |
| } |
| |
| } |