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 */ 017package org.apache.camel.impl; 018 019import java.util.Map; 020import java.util.Set; 021 022import org.apache.camel.CamelContext; 023import org.apache.camel.spi.Registry; 024import org.apache.camel.util.ObjectHelper; 025 026/** 027 * A {@link Registry} which delegates to the real registry. 028 * <p/> 029 * This is used to ensure that Camel performs property placeholder resolution on every lookup. 030 * 031 * @version 032 */ 033public class PropertyPlaceholderDelegateRegistry implements Registry { 034 035 private final CamelContext context; 036 private final Registry delegate; 037 038 public PropertyPlaceholderDelegateRegistry(CamelContext context, Registry delegate) { 039 this.context = context; 040 this.delegate = delegate; 041 } 042 043 public Object lookupByName(String name) { 044 try { 045 // Must avoid attempting placeholder resolution when looking up 046 // the properties component or else we end up in an infinite loop. 047 if (!name.equals("properties")) { 048 name = context.resolvePropertyPlaceholders(name); 049 } 050 return delegate.lookupByName(name); 051 } catch (Exception e) { 052 throw ObjectHelper.wrapRuntimeCamelException(e); 053 } 054 } 055 056 public <T> T lookupByNameAndType(String name, Class<T> type) { 057 try { 058 // Must avoid attempting placeholder resolution when looking up 059 // the properties component or else we end up in an infinite loop. 060 if (!name.equals("properties")) { 061 name = context.resolvePropertyPlaceholders(name); 062 } 063 return delegate.lookupByNameAndType(name, type); 064 } catch (Exception e) { 065 throw ObjectHelper.wrapRuntimeCamelException(e); 066 } 067 } 068 069 public <T> Map<String, T> findByTypeWithName(Class<T> type) { 070 return delegate.findByTypeWithName(type); 071 } 072 073 public <T> Set<T> findByType(Class<T> type) { 074 return delegate.findByType(type); 075 } 076 077 public Object lookup(String name) { 078 return lookupByName(name); 079 } 080 081 public <T> T lookup(String name, Class<T> type) { 082 return lookupByNameAndType(name, type); 083 } 084 085 public <T> Map<String, T> lookupByType(Class<T> type) { 086 return findByTypeWithName(type); 087 } 088 089 public Registry getRegistry() { 090 return delegate; 091 } 092 093 @Override 094 public String toString() { 095 return delegate.toString(); 096 } 097}