org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean Maven / Gradle / Ivy
/*
* Copyright 2002-2004 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.remoting.httpinvoker;
import java.net.MalformedURLException;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
/**
* Factory bean for HTTP invoker proxies. Behaves like the proxied service when
* used as bean reference, exposing the specified service interface.
*
* The service URL must be an HTTP URL exposing an HTTP invoker service.
* Optionally, a codebase URL can be specified for on-demand dynamic code download
* from a remote location. For details, see HttpInvokerClientInterceptor docs.
*
*
Serializes remote invocation objects and deserializes remote invocation
* result objects. Uses Java serialization just like RMI, but provides the
* same ease of setup as Caucho's HTTP-based Hessian and Burlap protocols.
*
*
HTTP invoker is the recommended protocol for Java-to-Java remoting.
* It is more powerful and more extensible than Hessian and Burlap, at the
* expense of being tied to Java. Nevertheless, it is as easy to set up as
* Hessian and Burlap, which is its main advantage compared to RMI.
*
* @author Juergen Hoeller
* @since 1.1
* @see #setServiceInterface
* @see #setServiceUrl
* @see #setCodebaseUrl
* @see HttpInvokerClientInterceptor
* @see HttpInvokerServiceExporter
* @see org.springframework.remoting.rmi.RmiProxyFactoryBean
* @see org.springframework.remoting.caucho.HessianProxyFactoryBean
* @see org.springframework.remoting.caucho.BurlapProxyFactoryBean
*/
public class HttpInvokerProxyFactoryBean extends HttpInvokerClientInterceptor
implements FactoryBean, InitializingBean {
private Object serviceProxy;
public void afterPropertiesSet() throws MalformedURLException {
if (getServiceInterface() == null) {
throw new IllegalArgumentException("serviceInterface is required");
}
this.serviceProxy = ProxyFactory.getProxy(getServiceInterface(), this);
}
public Object getObject() {
return this.serviceProxy;
}
public Class getObjectType() {
return (this.serviceProxy != null) ? this.serviceProxy.getClass() : getServiceInterface();
}
public boolean isSingleton() {
return true;
}
}