| /** |
| * |
| * Copyright 2005 the original author or authors. |
| * |
| * Licensed 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.gbean.spring; |
| |
| import java.lang.reflect.Method; |
| import java.util.Collections; |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| import javax.management.MalformedObjectNameException; |
| import javax.management.ObjectName; |
| |
| import org.springframework.beans.BeansException; |
| import org.springframework.beans.factory.NoSuchBeanDefinitionException; |
| import org.springframework.beans.factory.config.BeanDefinition; |
| import org.springframework.beans.factory.config.RuntimeBeanReference; |
| import org.springframework.beans.factory.support.BeanDefinitionValidationException; |
| import org.springframework.beans.factory.support.RootBeanDefinition; |
| |
| /** |
| * @version $Revision$ $Date$ |
| */ |
| public final class SpringUtil { |
| private SpringUtil() { |
| } |
| |
| public static Map extractDependencies(RootBeanDefinition beanDefinition, final Map objectNameMap) throws Exception { |
| final Map dependencies = new LinkedHashMap(); |
| SpringVisitor springVisitor = new AbstractSpringVisitor() { |
| public void visitBeanDefinition(BeanDefinition beanDefinition, Object data) throws BeansException { |
| Map dependencies = (Map) data; |
| super.visitBeanDefinition(beanDefinition, data); |
| if (beanDefinition instanceof RootBeanDefinition) { |
| RootBeanDefinition rootBeanDefinition = (RootBeanDefinition) beanDefinition; |
| String[] dependsOn = rootBeanDefinition.getDependsOn(); |
| if (dependsOn != null) { |
| for (int i = 0; i < dependsOn.length; i++) { |
| String dependency = dependsOn[i]; |
| try { |
| dependencies.put(dependency, Collections.singleton(getObjectName(objectNameMap, dependency))); |
| } catch (MalformedObjectNameException e) { |
| throw new BeanDefinitionValidationException("Depends on name could not be converted to an objectName: dependency=" + dependency, e); |
| } |
| } |
| } |
| |
| Class beanClass = rootBeanDefinition.getBeanClass(); |
| Method method = null; |
| try { |
| method = beanClass.getDeclaredMethod("getDependencies", new Class[]{RootBeanDefinition.class}); |
| } catch (NoSuchMethodException e) { |
| // ignored mehtod doesn't exist most of the time |
| } |
| if (method != null) { |
| try { |
| dependencies.putAll((Map) method.invoke(beanClass, new Object[]{rootBeanDefinition})); |
| } catch (Exception e) { |
| throw new BeanDefinitionValidationException("Unable to get dependencies from root bean definition: " + rootBeanDefinition, e); |
| } |
| } |
| } |
| } |
| |
| public void visitRuntimeBeanReference(RuntimeBeanReference beanReference, Object data) throws BeansException { |
| super.visitRuntimeBeanReference(beanReference, data); |
| String dependency = beanReference.getBeanName(); |
| try { |
| Map dependencies = (Map) data; |
| dependencies.put(dependency, Collections.singleton(getObjectName(objectNameMap, dependency))); |
| } catch (MalformedObjectNameException e) { |
| throw new BeanDefinitionValidationException("Bean ref name could not be converted to an objectName: refName=" + dependency, e); |
| } |
| } |
| |
| public void visitObject(Object value, Object data) throws BeansException { |
| Map dependencies = (Map) data; |
| super.visitObject(value, data); |
| if (value instanceof DependencyProvider) { |
| DependencyProvider dependencyProvider = (DependencyProvider) value; |
| dependencies.putAll(dependencyProvider.getDependencies()); |
| } |
| } |
| }; |
| springVisitor.visitBeanDefinition(beanDefinition, dependencies); |
| return dependencies; |
| } |
| |
| public static ObjectName getObjectName(Map objectNameMap, String name) throws MalformedObjectNameException { |
| if (name.indexOf(":") < 0) { |
| ObjectName objectName = (ObjectName) objectNameMap.get(name); |
| if (objectName == null) { |
| throw new NoSuchBeanDefinitionException(name, "No object name definded for service"); |
| } |
| |
| return objectName; |
| } else { |
| return new ObjectName(name); |
| } |
| } |
| } |