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/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.jaxws.spring;
import java.lang.reflect.Method;
import java.util.logging.Logger;
import javax.jws.WebService;
import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.common.classloader.ClassLoaderUtils;
import org.apache.cxf.common.i18n.Message;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.util.ClassHelper;
import org.apache.cxf.databinding.DataBinding;
import org.apache.cxf.frontend.ServerFactoryBean;
import org.apache.cxf.jaxb.JAXBDataBinding;
import org.apache.cxf.jaxws.JaxWsServerFactoryBean;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.web.context.ServletConfigAware;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.AbstractUrlHandlerMapping;
import org.springframework.web.servlet.mvc.Controller;
// All tests for this are in systests, since there's no place else to assemble all the necessary dependencies.
/**
* Bean to scan context for potential web services. This scans the beans for classes that
* are annotated with @WebService. Excepting those already declared via the JAX-WS Spring
* schema, it launches each as an endpoint.
*
* By default, it sets up a default JaxWsServiceFactory and JAX-B data binding,
* and then creates a URL under /services/ based on the service name. Properties of the bean
* permit you to configure this; if you set prototypeServiceFactoryBeanName, the code
* will fetch that bean. It must be a prototype, since service factory object can't be used
* for more than one endpoint. Similarly, prototypeDataBindingBeanName can be used to
* control the data binding.
*
* Note that this class uses {@link org.apache.cxf.transport.servlet#CXFServlet} from the
* cxf-rt-transports-http-jetty library, which is not part of
* the standard dependencies of the JAX-WS front
* end.
*
* If you use this processor in an environment with no servlet, it will still launch the
* endpoints using the embedded CXF server.
*
*/
public class JaxWsWebServicePublisherBeanPostProcessor
extends AbstractUrlHandlerMapping implements BeanPostProcessor,
ServletConfigAware, BeanFactoryAware {
private static final Logger LOG = LogUtils.getL7dLogger(JaxWsWebServicePublisherBeanPostProcessor.class);
private static final String CXF_SERVLET_CLASS_NAME = "org.apache.cxf.transport.servlet.CXFServlet";
private Class servletClass;
private Method servletGetBusMethod;
private String urlPrefix = "/services/";
private Servlet shadowCxfServlet;
private String prototypeDataBindingBeanName;
private String prototypeServerFactoryBeanName;
private BeanFactory beanFactory;
// for testing
private boolean customizedServerFactory;
private boolean customizedDataBinding;
public JaxWsWebServicePublisherBeanPostProcessor() throws SecurityException,
NoSuchMethodException, ClassNotFoundException {
try {
servletClass = ClassLoaderUtils.loadClass(CXF_SERVLET_CLASS_NAME, getClass());
} catch (ClassNotFoundException e) {
Message message = new Message("SERVLET_CLASS_MISSING", LOG, CXF_SERVLET_CLASS_NAME);
LOG.severe(message.toString());
throw e;
}
servletGetBusMethod = servletClass.getMethod("getBus");
}
private Bus getServletBus() {
try {
if (shadowCxfServlet == null) {
// no servlet going on. Just launch.
return BusFactory.getDefaultBus(true);
}
return (Bus) servletGetBusMethod.invoke(shadowCxfServlet);
} catch (Exception e) {
// CXF internally inconsistent?
throw new RuntimeException(e);
}
}
/**
* Set the prefix for the generated endpoint URLs.
* @param urlPrefix
*/
public void setUrlPrefix(String urlPrefix) {
this.urlPrefix = urlPrefix;
}
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
return bean;
}
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
Class clazz = ClassHelper.getRealClass(bean);
if (clazz.isAnnotationPresent(WebService.class)) {
WebService ws = clazz.getAnnotation(WebService.class);
String url = urlPrefix + ws.serviceName();
Message message = new Message("SELECTED_SERVICE", LOG, beanName,
clazz.getName(),
url);
LOG.info(message.toString());
createAndPublishEndpoint(url, bean);
registerHandler(url, new ServletAdapter(shadowCxfServlet));
} else {
if (logger.isDebugEnabled()) {
Message message = new Message("REJECTED_NO_ANNOTATION", LOG, beanName,
clazz.getName());
LOG.fine(message.toString());
}
}
return bean;
}
private void createAndPublishEndpoint(String url, Object implementor) {
ServerFactoryBean serverFactory = null;
if (prototypeServerFactoryBeanName != null) {
if (!beanFactory.isPrototype(prototypeServerFactoryBeanName)) {
throw
new IllegalArgumentException(
"prototypeServerFactoryBeanName must indicate a scope='prototype' bean");
}
serverFactory = beanFactory.getBean(prototypeServerFactoryBeanName,
ServerFactoryBean.class);
customizedServerFactory = true;
} else {
serverFactory = new JaxWsServerFactoryBean();
}
serverFactory.setServiceBean(implementor);
serverFactory.setServiceClass(ClassHelper.getRealClass(implementor));
serverFactory.setAddress(url);
DataBinding dataBinding = null;
if (prototypeDataBindingBeanName != null) {
if (!beanFactory.isPrototype(prototypeDataBindingBeanName)) {
throw
new IllegalArgumentException(
"prototypeDataBindingBeanName must indicate a scope='prototype' bean");
}
customizedDataBinding = true;
dataBinding = beanFactory.getBean(prototypeDataBindingBeanName,
DataBinding.class);
} else {
dataBinding = new JAXBDataBinding();
}
serverFactory.setDataBinding(dataBinding);
serverFactory.setBus(getServletBus());
serverFactory.create();
}
public void setServletConfig(ServletConfig servletConfig) {
try {
shadowCxfServlet = (Servlet)servletClass.newInstance();
} catch (InstantiationException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
try {
shadowCxfServlet.init(servletConfig);
} catch (ServletException ex) {
throw new RuntimeException(ex.getMessage(), ex);
}
}
public static class ServletAdapter implements Controller {
private Servlet controller;
public ServletAdapter(Servlet controller) {
this.controller = controller;
}
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
throws Exception {
controller.service(request, response);
return null;
}
}
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
this.beanFactory = beanFactory;
}
public String getPrototypeServerFactoryBeanName() {
return prototypeServerFactoryBeanName;
}
/**
* Set the server factory for all services launched by this bean. This must be the name of a
* scope='prototype' bean that implements
* {@link org.apache.cxf.frontend#ServerFactoryBean}.
* @param prototypeServerFactoryBeanName
*/
public void setPrototypeServerFactoryBeanName(String prototypeServerFactoryBeanName) {
this.prototypeServerFactoryBeanName = prototypeServerFactoryBeanName;
}
public String getPrototypeDataBindingBeanName() {
return prototypeDataBindingBeanName;
}
/**
* Set the data binding for all services launched by this bean. This must be the name of a
* scope='prototype' bean that implements {@link org.apache.cxf.databinding#DataBinding}.
* @param prototypeDataBindingBeanName
*/
public void setPrototypeDataBindingBeanName(String prototypeDataBindingBeanName) {
this.prototypeDataBindingBeanName = prototypeDataBindingBeanName;
}
/**
* For Unit Test.
* @return
*/
public boolean isCustomizedServerFactory() {
return customizedServerFactory;
}
/**
* For Unit Test.
* @return
*/
public boolean isCustomizedDataBinding() {
return customizedDataBinding;
}
}
