Examples with GENERIC_KEY org.apache.dubbo.rpc.Constants.GENERIC_KEY used on opensource projects

Example 1 with GENERIC_KEY

use of org.apache.dubbo.rpc.Constants.GENERIC_KEY in project dubbo by alibaba.

the class RmiProtocol method doRefer.

@Override
@SuppressWarnings("unchecked")
protected <T> T doRefer(final Class<T> serviceType, final URL url) throws RpcException {
    final RmiProxyFactoryBean rmiProxyFactoryBean = new RmiProxyFactoryBean();
    final String generic = url.getParameter(GENERIC_KEY);
    final boolean isGeneric = ProtocolUtils.isGeneric(generic) || serviceType.equals(GenericService.class);
    /*
          RMI needs extra parameter since it uses customized remote invocation object

          The customized RemoteInvocation was firstly introduced in v2.6.3; The package was renamed to 'org.apache.*' since v2.7.0
          Considering the above two conditions, we need to check before sending customized RemoteInvocation:
          1. if the provider version is v2.7.0 or higher, send 'org.apache.dubbo.rpc.protocol.rmi.RmiRemoteInvocation'.
          2. if the provider version is v2.6.3 or higher, send 'com.alibaba.dubbo.rpc.protocol.rmi.RmiRemoteInvocation'.
          3. if the provider version is lower than v2.6.3, does not use customized RemoteInvocation.
         */
    if (isRelease270OrHigher(url.getParameter(RELEASE_KEY))) {
        rmiProxyFactoryBean.setRemoteInvocationFactory(methodInvocation -> {
            RemoteInvocation invocation = new RmiRemoteInvocation(methodInvocation);
            if (isGeneric) {
                invocation.addAttribute(GENERIC_KEY, generic);
            }
            return invocation;
        });
    } else if (isRelease263OrHigher(url.getParameter(DUBBO_VERSION_KEY))) {
        rmiProxyFactoryBean.setRemoteInvocationFactory(methodInvocation -> {
            RemoteInvocation invocation = new com.alibaba.dubbo.rpc.protocol.rmi.RmiRemoteInvocation(methodInvocation);
            if (isGeneric) {
                invocation.addAttribute(GENERIC_KEY, generic);
            }
            return invocation;
        });
    }
    String serviceUrl = url.toIdentityString();
    if (isGeneric) {
        serviceUrl = serviceUrl + "/" + GENERIC_KEY;
    }
    rmiProxyFactoryBean.setServiceUrl(serviceUrl);
    rmiProxyFactoryBean.setServiceInterface(serviceType);
    rmiProxyFactoryBean.setCacheStub(true);
    rmiProxyFactoryBean.setLookupStubOnStartup(true);
    rmiProxyFactoryBean.setRefreshStubOnConnectFailure(true);
    rmiProxyFactoryBean.afterPropertiesSet();
    return (T) rmiProxyFactoryBean.getObject();
}