io.grpc.netty.ClientTransportLifecycleManager Maven / Gradle / Ivy
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package io.grpc.netty;
import io.grpc.Status;
import io.grpc.internal.ManagedClientTransport;
/** Maintainer of transport lifecycle status. */
final class ClientTransportLifecycleManager {
private final ManagedClientTransport.Listener listener;
private boolean transportReady;
private boolean transportShutdown;
private boolean transportInUse;
/** null iff !transportShutdown. */
private Status shutdownStatus;
/** null iff !transportShutdown. */
private Throwable shutdownThrowable;
private boolean transportTerminated;
public ClientTransportLifecycleManager(ManagedClientTransport.Listener listener) {
this.listener = listener;
}
public void notifyReady() {
if (transportReady || transportShutdown) {
return;
}
transportReady = true;
listener.transportReady();
}
public void notifyShutdown(Status s) {
if (transportShutdown) {
return;
}
transportShutdown = true;
shutdownStatus = s;
shutdownThrowable = s.asException();
listener.transportShutdown(s);
}
public void notifyInUse(boolean inUse) {
if (inUse == transportInUse) {
return;
}
transportInUse = inUse;
listener.transportInUse(inUse);
}
public void notifyTerminated(Status s) {
if (transportTerminated) {
return;
}
transportTerminated = true;
notifyShutdown(s);
listener.transportTerminated();
}
public Status getShutdownStatus() {
return shutdownStatus;
}
public Throwable getShutdownThrowable() {
return shutdownThrowable;
}
}