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The official Couchbase JVM Core IO Library
/*
* Copyright (c) 2019 Couchbase, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.couchbase.client.core.cnc.tracing;
import com.couchbase.client.core.cnc.RequestSpan;
import com.couchbase.client.core.cnc.RequestTracer;
import reactor.core.publisher.Mono;
import java.time.Duration;
/**
* A simple NOOP implementation of the tracer, useful if tracing needs to be disabled completely.
*/
public class NoopRequestTracer implements RequestTracer {
/**
* Returns the static instance of this tracer.
*/
public static final NoopRequestTracer INSTANCE = new NoopRequestTracer();
private NoopRequestTracer() {
}
@Override
public Mono start() {
return Mono.empty();
}
@Override
public Mono stop(final Duration timeout) {
return Mono.empty();
}
@Override
public RequestSpan requestSpan(final String operationName, final RequestSpan parent) {
return NoopRequestSpan.INSTANCE;
}
}