Autowiring a HttpInvoker remote client

[stolley]

Long story short - I'm having trouble getting HttpInvoker remote clients wired up via autowiring and java configuration.

This is the thing I want to autowire the field of (specifically, the DbServerInfo as a HttpInvoker)

class RelayQMessageHandler implements MessageHandler {
  private Logger log = LoggerFactory.getLogger(this.getClass())

  @Autowired DbServerInfo dbServerInfo

  void handleMessage(Message<?> message) throws MessagingException {
    SmtpRelayMessage smtpMsg = message.payload as SmtpRelayMessage
    log.debug "RelayQMessageHandler: $message"

    String echoValue = dbServerInfo.echoString("mesasge from $smtpMsg.from")
    log.info "server reply: $echoValue"

  }
}

And this is the relevant part of my configuration

 
@Configuration
@ImportResource(["classpath:/org/st/fort/smtprelay/SmtpRelayServer.xml"])
class AppConfig { 
  @Bean RelayQMessageHandler relayQMessageHandler(){
    RelayQMessageHandler handler = new RelayQMessageHandler()
    return handler
  }
}

If I put this in SmtpRelayServer.xml, everything's peachy:

  <bean id="httpInvokerProxy" class="org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean">
    <property name="serviceUrl" value="http://localhost:4242/fort-db-server/api/myDbServerInfo2"/>
    <property name="serviceInterface" value="org.st.fort.dbserver.shared.remote.DbServerInfo"/>
  </bean>

But I don't like wiring my beans with XML, this is the last thing to figure out and I can get rid of the XML file completely - so I want to configure the httpinvoker via the java configuration mechanism.

The thing I found some people were recommending to do (or similar) was:

  String dbInfoUrl = "http://localhost:4242/fort-db-server/api/myDbServerInfo2"

  @Bean HttpInvokerProxyFactoryBean dbServerInfoProxy() {
    HttpInvokerProxyFactoryBean proxy = new HttpInvokerProxyFactoryBean()
    proxy.serviceInterface = DbServerInfo
    proxy.serviceUrl = dbInfoUrl
    return proxy
  }

But that doesn't work because it will fail to autowire (spring says no beans of type DbServerInfo) - oddly though, if I grab an ApplicationContext and call "appCtx.getBean(DbServerInfo)" that will work fine. So the looking up the object by the remote interface works fine directly on the ApplicationContext - but you can't autowire by it.

So, after a fair bit of faffing about, the closest I could come up with was to add this to my AppConfig:

  String dbInfoUrl = "http://localhost:4242/fort-db-server/api/myDbServerInfo2"

  @Bean DbServerInfo dbServerInfo() {
    HttpInvokerProxyFactoryBean proxy = new HttpInvokerProxyFactoryBean()
    proxy.serviceInterface = DbServerInfo
    proxy.serviceUrl = dbInfoUrl
    proxy.afterPropertiesSet()
    return proxy.object as DbServerInfo
  }

That works and will autowire - but because we're actually creating the remote client with that afterPropertiesSet/proxy.getObject combo, I can't change the url via a PropertyOverrideConfigurern (being my much preferred configuration mechanism).

I read this post, but I couldn't see a good way to use a PropertyOverrideConfigurer with it.

I also tried to bring in this old copy of the ConfigurationSupport class to help me out: https://github.com/jbaruch/spring-ja...ration-support
It looks like it's designed to do exactly what I want, but somehow the serviceUrl of the proxy gets set to null and then the init method of the httpinvokerproxyfactory freaks out.

Any suggestions on how I can do this with the java config and have the remote proxy be autowired and override configured properly?

[stolley]

Sorry, please disregard the above, re-testing today showed the following code atuowires fine and is fully configurable:

  @Bean HttpInvokerProxyFactoryBean dbServerInfo() {
    HttpInvokerProxyFactoryBean proxy = new HttpInvokerProxyFactoryBean()
    proxy.serviceInterface = DbServerInfo
    proxy.serviceUrl = "http://localhost:4242/fort-db-server/api/myDbServerInfo2"
    return proxy
  }

One little trap being that two property override keys are available: "appConfig.dbServerInfo.serviceUrl" and "dbServerInfo.serviceUrl". Both are accepted by the property override configurer when ignoreInvalidKeys is false, but only "dbServerInfo.serviceUrl" actually serves to configure the invoker.

Sorry for the noise.