001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.impl; 018 019 import java.util.HashMap; 020 import java.util.Map; 021 022 import org.apache.camel.NoSuchBeanException; 023 import org.apache.camel.spi.Registry; 024 025 /** 026 * A {@link Map}-based registry. 027 */ 028 public class SimpleRegistry extends HashMap<String, Object> implements Registry { 029 030 private static final long serialVersionUID = -3739035212761568984L; 031 032 public Object lookup(String name) { 033 return get(name); 034 } 035 036 public <T> T lookup(String name, Class<T> type) { 037 Object answer = lookup(name); 038 039 // just to be safe 040 if (answer == null) { 041 return null; 042 } 043 044 try { 045 return type.cast(answer); 046 } catch (Throwable e) { 047 String msg = "Found bean: " + name + " in SimpleRegistry: " + this 048 + " of type: " + answer.getClass().getName() + " expected type was: " + type; 049 throw new NoSuchBeanException(name, msg, e); 050 } 051 } 052 053 public <T> Map<String, T> lookupByType(Class<T> type) { 054 Map<String, T> result = new HashMap<String, T>(); 055 for (Map.Entry<String, Object> entry : entrySet()) { 056 if (type.isInstance(entry.getValue())) { 057 result.put(entry.getKey(), type.cast(entry.getValue())); 058 } 059 } 060 return result; 061 } 062 063 }