org.springframework.remoting.caucho
Class HessianClientInterceptor

java.lang.Object
  org.springframework.remoting.support.RemoteAccessor
      org.springframework.remoting.support.UrlBasedRemoteAccessor
          org.springframework.remoting.caucho.CauchoRemoteAccessor
              org.springframework.remoting.caucho.HessianClientInterceptor

All Implemented Interfaces:

Advice, InitializingBean, Interceptor, MethodInterceptor

Direct Known Subclasses:

HessianProxyFactoryBean

public class HessianClientInterceptor

extends CauchoRemoteAccessor

implements MethodInterceptor

Interceptor for accessing a Hessian service. Supports authentication via username and password. The service URL must be an HTTP URL exposing a Hessian service.

Hessian is a slim, binary RPC protocol. For information on Hessian, see the Hessian website

Note: Hessian services accessed with this proxy factory do not have to be exported via HessianServiceExporter, as there isn't any special handling involved. Therefore, you can also access services that are exported via Caucho's HessianServlet.

Since:

29.09.2003

Author:

Juergen Hoeller

See Also:

RemoteAccessor.setServiceInterface(java.lang.Class), UrlBasedRemoteAccessor.setServiceUrl(java.lang.String), CauchoRemoteAccessor.setUsername(java.lang.String), CauchoRemoteAccessor.setPassword(java.lang.String), HessianServiceExporter, HessianProxyFactoryBean, HessianProxyFactory

Field Summary

Fields inherited from class org.springframework.remoting.support.RemoteAccessor

logger

Constructor Summary

HessianClientInterceptor()

Method Summary

protected RemoteAccessException	convertHessianAccessException(Throwable ex) Convert the given Hessian access exception to an appropriate Spring RemoteAccessException.
protected Object	createHessianProxy(com.caucho.hessian.client.HessianProxyFactory proxyFactory) Create the Hessian proxy that is wrapped by this interceptor.
Object	invoke(MethodInvocation invocation)
void	prepare() Initialize the Hessian proxy for this interceptor.
void	setProxyFactory(com.caucho.hessian.client.HessianProxyFactory proxyFactory) Set the HessianProxyFactory instance to use.

Methods inherited from class org.springframework.remoting.caucho.CauchoRemoteAccessor

afterPropertiesSet, getPassword, getUsername, isOverloadEnabled, setOverloadEnabled, setPassword, setUsername

Methods inherited from class org.springframework.remoting.support.UrlBasedRemoteAccessor

getServiceUrl, setServiceUrl

Methods inherited from class org.springframework.remoting.support.RemoteAccessor

getServiceInterface, setServiceInterface

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HessianClientInterceptor

public HessianClientInterceptor()

Method Detail

setProxyFactory

public void setProxyFactory(com.caucho.hessian.client.HessianProxyFactory proxyFactory)

Set the HessianProxyFactory instance to use. If not specified, a default HessianProxyFactory will be created.

Allows to use an externally configured factory instance, in particular a custom HessianProxyFactory subclass.

prepare

public void prepare()
             throws MalformedURLException

Initialize the Hessian proxy for this interceptor.

Overrides:

prepare in class CauchoRemoteAccessor

Throws:

MalformedURLException - if thrown by Hessian/Burlap API

See Also:

prepare(), BurlapClientInterceptor.prepare()

createHessianProxy

protected Object createHessianProxy(com.caucho.hessian.client.HessianProxyFactory proxyFactory)
                             throws MalformedURLException

Create the Hessian proxy that is wrapped by this interceptor.

Parameters:

proxyFactory - the proxy factory to use

Returns:

the Hessian proxy

Throws:

MalformedURLException - if thrown by the proxy factory

See Also:

HessianProxyFactory.create(java.lang.Class, java.lang.String)

invoke

public Object invoke(MethodInvocation invocation)
              throws Throwable

Specified by:

invoke in interface MethodInterceptor

Throws:

Throwable

convertHessianAccessException

protected RemoteAccessException convertHessianAccessException(Throwable ex)

Convert the given Hessian access exception to an appropriate Spring RemoteAccessException.

Parameters:

ex - the exception to convert

Returns:

the RemoteAccessException to throw