runtime/org.argeo.slc.core/src/main/java/org/argeo/slc/core/execution/xml/ExecutionScopeDecorator.java

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.argeo.slc.core.execution.xml;
  18
  19 import org.springframework.aop.scope.ScopedProxyUtils;
  20 import org.springframework.beans.factory.config.BeanDefinitionHolder;
  21 import org.springframework.beans.factory.parsing.BeanComponentDefinition;
  22 import org.springframework.beans.factory.xml.BeanDefinitionDecorator;
  23 import org.springframework.beans.factory.xml.ParserContext;
  24 import org.w3c.dom.Element;
  25 import org.w3c.dom.Node;
  26
  27 /**
  28  * Inspired by org.springframework.aop.config.ScopedProxyBeanDefinitionDecorator
  29  */
  30 public class ExecutionScopeDecorator implements BeanDefinitionDecorator {
  31         private static final String PROXY_TARGET_CLASS = "proxy-target-class";
  32
  33         public BeanDefinitionHolder decorate(Node node,
  34                         BeanDefinitionHolder definition, ParserContext parserContext) {
  35
  36                 definition.getBeanDefinition().setScope("execution");
  37
  38                 // Default: CGLib not used
  39                 boolean proxyTargetClass = false;
  40                 if (node instanceof Element) {
  41                         Element ele = (Element) node;
  42                         if (ele.hasAttribute(PROXY_TARGET_CLASS)) {
  43                                 proxyTargetClass = Boolean.valueOf(ele.getAttribute(PROXY_TARGET_CLASS)).booleanValue();
  44                         }
  45                 }
  46
  47                 // Register the original bean definition as it will be referenced by the scoped proxy and is relevant for tooling (validation, navigation).
  48                 String targetBeanName = ScopedProxyUtils.getTargetBeanName(definition.getBeanName());
  49                 parserContext.getReaderContext().fireComponentRegistered(new BeanComponentDefinition(definition.getBeanDefinition(), targetBeanName));
  50
  51                 return ScopedProxyUtils.createScopedProxy(definition, parserContext.getRegistry(), proxyTargetClass);
  52         }
  53 }