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ocelli-core developed by Netflix

There is a newer version: 0.1.0-rc.2

package netflix.ocelli.functions;

import netflix.ocelli.FailureDetectorFactory;
import rx.Observable;

public abstract class Failures {
    public static  FailureDetectorFactory never() {
        return new FailureDetectorFactory() {
            @Override
            public Observable call(C client) {
                return Observable.never();
            }
        };
    }
    
    public static  FailureDetectorFactory always(final Throwable t) {
        return new FailureDetectorFactory() {
            @Override
            public Observable call(C client) {
                return Observable.error(t);
            }
        };
    }
}