另外，测过性能没有？我看核心链路上直接走反射，比如：
```java
/**
* 这里返回的impl必须要有所有的方法, Stub BlockingStube FutureStub
*/
@Override
protected <T> T doRefer(Class<T> type, URL url) throws RpcException {
//通过
type(IGreeter)，反射获得外部类（GreeterGrpc），调用静态方法（getDubboStub()），获得并返回（T）stub
Class<?> enclosingClass = type.getEnclosingClass();
if (enclosingClass == null) {
throw new IllegalArgumentException(
type.getName() + " must be declared inside protobuf
generated classes, " +
"should be something like
ServiceNameGrpc.IServiceName.");
}
final Method dubboStubMethod;
try {
dubboStubMethod = enclosingClass.getDeclaredMethod("getDubboStub",
Channel.class, long.class);
} catch (NoSuchMethodException e) {
throw new IllegalArgumentException("Does not find getDubboStub in "
+ enclosingClass.getName()
+ ", please use the customized protoc-gen-grpc-dubbo-java
to update the generated classes.");
}
Channel channel = channelMap.computeIfAbsent(url.getServiceKey(),
k -> ManagedChannelBuilder.forAddress(url.getHost(),
url.getPort()).usePlaintext().build()
);
try {
int timeout = url.getParameter(TIMEOUT_KEY, DEFAULT_TIMEOUT);
@SuppressWarnings("unchecked") final T stub = (T)
dubboStubMethod.invoke(null, channel, timeout);
return stub;
} catch (IllegalAccessException | InvocationTargetException e) {
throw new IllegalStateException("Could not create stub through
reflection.", e);
}
}
```
可以参考
[motan的GRPC实现](https://github.com/weibocom/motan/blob/master/motan-extension/protocol-extension/motan-protocol-grpc/src/main/java/com/weibo/api/motan/protocol/grpc/GrpcProtocol.java)
[ Full content available at: https://github.com/apache/dubbo/issues/3999 ]
This message was relayed via gitbox.apache.org for
notifications@dubbo.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: notifications-unsubscr...@dubbo.apache.org
For additional commands, e-mail: notifications-h...@dubbo.apache.org
