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.spring.handler;
018
019 import org.apache.camel.util.ObjectHelper;
020
021 /**
022 * A {@link BeanDefinitionParser} which lazy loads the type on which it creates to allow the schema to be loosly coupled
023 * with the camel jars.
024 *
025 * @version $Revision: 630591 $
026 */
027 public class LazyLoadingBeanDefinitionParser extends BeanDefinitionParser {
028 private String className;
029 private String moduleName;
030
031 public LazyLoadingBeanDefinitionParser(String className, String moduleName) {
032 this.className = className;
033 this.moduleName = moduleName;
034 }
035
036 @Override
037 protected Class loadType() {
038 Class<?> answer = ObjectHelper.loadClass(className, getClass().getClassLoader());
039 if (answer == null) {
040 throw new IllegalArgumentException("Class: " + className + " could not be found. You need to add Camel module: " + moduleName + " to your classpath");
041 }
042 return answer;
043 }
044 }