/*
* Copyright 2012-2014 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.springframework.boot.autoconfigure.jersey;
import javax.annotation.PostConstruct;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.ws.rs.ApplicationPath;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.servlet.ServletContainer;
import org.glassfish.jersey.servlet.ServletProperties;
import org.springframework.beans.factory.ListableBeanFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration;
import org.springframework.boot.context.embedded.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.core.annotation.Order;
import org.springframework.web.WebApplicationInitializer;
import org.springframework.web.filter.RequestContextFilter;
/**
* {@link EnableAutoConfiguration Auto-configuration} for Jersey.
*
* @author Dave Syer
* @author Andy Wilkinson
*/
@Configuration
@ConditionalOnClass(name = {
"org.glassfish.jersey.server.spring.SpringComponentProvider",
"javax.servlet.ServletRegistration" })
@ConditionalOnBean(type = "org.glassfish.jersey.server.ResourceConfig")
@ConditionalOnWebApplication
@Order(Ordered.HIGHEST_PRECEDENCE)
@AutoConfigureBefore(DispatcherServletAutoConfiguration.class)
public class JerseyAutoConfiguration implements WebApplicationInitializer {
@Autowired
private ListableBeanFactory context;
@Autowired
private ResourceConfig config;
private String path;
@PostConstruct
public void path() {
this.path = findPath(AnnotationUtils.findAnnotation(this.config.getClass(),
ApplicationPath.class));
}
@Bean
@ConditionalOnMissingBean
public RequestContextFilter requestContextFilter() {
return new RequestContextFilter();
}
@Bean
@ConditionalOnMissingBean(name = "jerseyServletRegistration")
public ServletRegistrationBean jerseyServletRegistration() {
Class<? extends ResourceConfig> configType = this.config.getClass();
ServletRegistrationBean registration = new ServletRegistrationBean(
new ServletContainer(), this.path);
registration.addInitParameter(ServletProperties.JAXRS_APPLICATION_CLASS,
configType.getName());
registration.setName("jerseyServlet");
return registration;
}
@Override
public void onStartup(ServletContext servletContext) throws ServletException {
// We need to switch *off* the Jersey WebApplicationInitializer because it
// will try and register a ContextLoaderListener which we don't need
servletContext.setInitParameter("contextConfigLocation", "<NONE>");
}
private static String findPath(ApplicationPath annotation) {
// Jersey doesn't like to be the default servlet, so map to /* as a fallback
if (annotation == null) {
return "/*";
}
String path = annotation.value();
return ((path.isEmpty() || path.equals("/")) ? "/*" : path + "/*");
}
}