/**
* 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.jaxrs.spring;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import javax.ws.rs.Path;
import javax.ws.rs.ext.Provider;
import javax.xml.namespace.QName;
import org.w3c.dom.Element;
import org.apache.cxf.bus.spring.BusWiringBeanFactoryPostProcessor;
import org.apache.cxf.common.util.ClasspathScanner;
import org.apache.cxf.common.util.StringUtils;
import org.apache.cxf.configuration.spring.AbstractBeanDefinitionParser;
import org.apache.cxf.endpoint.Server;
import org.apache.cxf.jaxrs.JAXRSServerFactoryBean;
import org.apache.cxf.jaxrs.JAXRSServiceFactoryBean;
import org.apache.cxf.jaxrs.lifecycle.ResourceProvider;
import org.apache.cxf.jaxrs.model.UserResource;
import org.apache.cxf.jaxrs.utils.ResourceUtils;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanCreationException;
import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
public class JAXRSServerFactoryBeanDefinitionParser extends AbstractBeanDefinitionParser {
public JAXRSServerFactoryBeanDefinitionParser() {
super();
setBeanClass(SpringJAXRSServerFactoryBean.class);
}
@Override
protected void mapAttribute(BeanDefinitionBuilder bean, Element e, String name, String val) {
if ("beanNames".equals(name)) {
String[] values = StringUtils.split(val, " ");
List<SpringResourceFactory> tempFactories = new ArrayList<SpringResourceFactory>(values.length);
for (String v : values) {
String theValue = v.trim();
if (theValue.length() > 0) {
tempFactories.add(new SpringResourceFactory(theValue));
}
}
bean.addPropertyValue("tempResourceProviders", tempFactories);
} else if ("serviceName".equals(name)) {
QName q = parseQName(e, val);
bean.addPropertyValue(name, q);
} else if ("basePackages".equals(name)) {
bean.addPropertyValue("basePackages", ClasspathScanner.parsePackages(val));
} else {
mapToProperty(bean, name, val);
}
}
@Override
protected void mapElement(ParserContext ctx, BeanDefinitionBuilder bean, Element el, String name) {
if ("properties".equals(name)
|| "extensionMappings".equals(name)
|| "languageMappings".equals(name)) {
Map<?, ?> map = ctx.getDelegate().parseMapElement(el, bean.getBeanDefinition());
bean.addPropertyValue(name, map);
} else if ("executor".equals(name)) {
setFirstChildAsProperty(el, ctx, bean, "serviceFactory.executor");
} else if ("invoker".equals(name)) {
setFirstChildAsProperty(el, ctx, bean, "serviceFactory.invoker");
} else if ("binding".equals(name)) {
setFirstChildAsProperty(el, ctx, bean, "bindingConfig");
} else if ("inInterceptors".equals(name) || "inFaultInterceptors".equals(name)
|| "outInterceptors".equals(name) || "outFaultInterceptors".equals(name)) {
List<?> list = ctx.getDelegate().parseListElement(el, bean.getBeanDefinition());
bean.addPropertyValue(name, list);
} else if ("features".equals(name) || "schemaLocations".equals(name)
|| "providers".equals(name) || "serviceBeans".equals(name)
|| "modelBeans".equals(name)) {
List<?> list = ctx.getDelegate().parseListElement(el, bean.getBeanDefinition());
bean.addPropertyValue(name, list);
} else if ("serviceFactories".equals(name)) {
List<?> list = ctx.getDelegate().parseListElement(el, bean.getBeanDefinition());
bean.addPropertyValue("resourceProviders", list);
} else if ("model".equals(name)) {
List<UserResource> resources = ResourceUtils.getResourcesFromElement(el);
bean.addPropertyValue("modelBeans", resources);
} else {
setFirstChildAsProperty(el, ctx, bean, name);
}
}
@Override
protected void doParse(Element element, ParserContext ctx, BeanDefinitionBuilder bean) {
super.doParse(element, ctx, bean);
bean.setInitMethodName("create");
bean.setDestroyMethodName("destroy");
// We don't really want to delay the registration of our Server
bean.setLazyInit(false);
}
@Override
protected String resolveId(Element elem,
AbstractBeanDefinition definition,
ParserContext ctx)
throws BeanDefinitionStoreException {
String id = super.resolveId(elem, definition, ctx);
if (StringUtils.isEmpty(id)) {
id = getBeanClass().getName() + "--" + definition.hashCode();
}
return id;
}
@Override
protected boolean hasBusProperty() {
return true;
}
public static class SpringJAXRSServerFactoryBean extends JAXRSServerFactoryBean implements
ApplicationContextAware {
private List<SpringResourceFactory> tempFactories;
private List<String> basePackages;
private ApplicationContext context;
public SpringJAXRSServerFactoryBean() {
super();
}
public SpringJAXRSServerFactoryBean(JAXRSServiceFactoryBean sf) {
super(sf);
}
public void destroy() {
Server server = super.getServer();
if (server != null && server.isStarted()) {
server.destroy();
}
}
public void setBasePackages(List<String> basePackages) {
this.basePackages = basePackages;
}
public void setTempResourceProviders(List<SpringResourceFactory> providers) {
tempFactories = providers;
}
public void setApplicationContext(ApplicationContext ctx) throws BeansException {
this.context = ctx;
if (tempFactories != null) {
List<ResourceProvider> factories = new ArrayList<ResourceProvider>(
tempFactories.size());
for (int i = 0; i < tempFactories.size(); i++) {
SpringResourceFactory factory = tempFactories.get(i);
factory.setApplicationContext(ctx);
factories.add(factory);
}
tempFactories.clear();
super.setResourceProviders(factories);
}
try {
if (basePackages != null) {
@SuppressWarnings("unchecked")
final Map< Class< ? extends Annotation >, Collection< Class< ? > > > classes =
ClasspathScanner.findClasses(basePackages, Provider.class, Path.class);
this.setProviders(createBeans(classes.get(Provider.class)));
this.setServiceBeans(createBeans(classes.get(Path.class)));
}
} catch (IOException ex) {
throw new BeanDefinitionStoreException("I/O failure during classpath scanning", ex);
} catch (ClassNotFoundException ex) {
throw new BeanCreationException("Failed to create bean from classfile", ex);
}
if (bus == null) {
setBus(BusWiringBeanFactoryPostProcessor.addDefaultBus(ctx));
}
}
private List<Object> createBeans(Collection<Class<?>> classes) {
final List< Object > providers = new ArrayList< Object >();
for (final Class< ? > clazz: classes) {
providers.add(context.getAutowireCapableBeanFactory().createBean(clazz));
}
return providers;
}
}
}