com.github.thinkerou.karate.grpc.ComponentObserver Maven / Gradle / Ivy
package com.github.thinkerou.karate.grpc;
import java.util.logging.Logger;
import com.google.common.collect.ImmutableList;
import io.grpc.stub.StreamObserver;
/**
* ComponentObserver
*
* A StreamObserver which groups multiple observers and executes them all.
*
* @author thinkerou
*/
public final class ComponentObserver implements StreamObserver {
private static final Logger logger = Logger.getLogger(ComponentObserver.class.getName());
private final ImmutableList> observers;
@SafeVarargs
public static ComponentObserver of(StreamObserver... observers) {
return new ComponentObserver<>(ImmutableList.copyOf(observers));
}
private ComponentObserver(ImmutableList> observers) {
this.observers = observers;
}
@Override
public void onCompleted() {
observers.forEach(tStreamObserver -> {
try {
tStreamObserver.onCompleted();
} catch (Throwable t) {
logger.warning(t.getMessage());
}
});
}
@Override
public void onError(Throwable t) {
observers.forEach(tStreamObserver -> {
try {
tStreamObserver.onError(t);
} catch (Throwable e) {
logger.warning(e.getMessage());
}
});
}
@Override
public void onNext(T value) {
observers.forEach(tStreamObserver -> {
try {
tStreamObserver.onNext(value);
} catch (Throwable t) {
logger.warning(t.getMessage());
}
});
}
}
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