vertx-semper/aeon-eternal/aeon-inlet/src/main/java/io/vertx/up/uca/micro/ipc/server/UnityTunnel.java
package io.vertx.up.uca.micro.ipc.server;
import io.grpc.BindableService;
import io.horizon.uca.log.Annal;
import io.vertx.core.Future;
import io.vertx.core.Vertx;
import io.vertx.mod.ipc.eon.IpcRequest;
import io.vertx.mod.ipc.eon.IpcResponse;
import io.vertx.mod.ipc.service.VertxUnityServiceGrpc;
import io.vertx.up.annotations.Ipc;
import io.vertx.up.atom.agent.IpcData;
import io.vertx.up.commune.Envelop;
import io.vertx.up.eon.em.container.IpcType;
import io.vertx.up.exception.web._501RpcMethodMissingException;
import io.vertx.up.uca.micro.ipc.DataEncap;
import io.vertx.up.uca.micro.ipc.tower.FinalTransit;
import io.vertx.up.uca.micro.ipc.tower.NodeTransit;
import io.vertx.up.uca.micro.ipc.tower.Transit;
import io.vertx.up.util.Ut;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
/**
* Unity nextTunnel
*/
public class UnityTunnel implements Tunnel {
private static final Annal LOGGER = Annal.get(UnityTunnel.class);
@Override
public BindableService init(final Vertx vertx) {
return new VertxUnityServiceGrpc.UnityServiceVertxImplBase() {
public void unityCall(final IpcRequest request, final Future<IpcResponse> future) {
// IpcData building
final IpcData data = DataEncap.consume(request, IpcType.UNITY);
// Method called with message handler
final Envelop envelop = DataEncap.consume(data);
// Method handle
final Method method = Tunnel.IPCS.get(data.getAddress());
// Work mode
if (null == method) {
// No Rpc Handler here
final Envelop community = Envelop.failure(
new _501RpcMethodMissingException(this.getClass(), data.getAddress()));
// Build IpcData
final IpcData responseData = UnityTunnel.this.build(community, envelop);
// future.complete(DataEncap.out(responseData));
} else {
// Execute Transit
final Transit transit = UnityTunnel.this.getTransit(method, vertx);
// Execute Transit
final Future<Envelop> result = transit.async(envelop);
result.onComplete(res -> {
if (res.succeeded()) {
final IpcData responseData = UnityTunnel.this.build(res.result(), envelop);
// future.complete(DataEncap.out(responseData));
} else {
res.cause().printStackTrace();
}
});
}
}
};
}
private IpcData build(final Envelop community, final Envelop envelop) {
// Headers and user could not be modified
if (null != envelop) {
community.from(envelop);
}
// IpcResponse -> Output Envelop
final IpcData responseData = new IpcData();
responseData.setType(IpcType.UNITY);
DataEncap.in(responseData, community);
return responseData;
}
private Transit getTransit(final Method method, final Vertx vertx) {
final Annotation annotation = method.getAnnotation(Ipc.class);
// 1. Check only one is enough because of Error-40043
// 2. to and from must not be null at the same time because of Error-40045
final String to = Ut.invoke(annotation, "to");
final Transit transit;
if (Ut.isNil(to)) {
// Node transit
transit = Ut.singleton(FinalTransit.class);
LOGGER.info(Info.NODE_FINAL, method, method.getDeclaringClass());
} else {
// Final transit
transit = Ut.singleton(NodeTransit.class);
LOGGER.info(Info.NODE_MIDDLE, method, method.getDeclaringClass());
}
return transit.connect(vertx).connect(method);
}
}