ffa97c1f20
Instrumentation should be able to get by with only 2 interfaces: TraceManager and TraceAccessor (the former is not needed if you aren't starting a new Span). No explicit access to thread locals or manipulation of thread context is required (except locally where necessary). A Span is enclosed by a Trace (actually a view of the complete Trace that would be constructed remotely).
47 lines
1.3 KiB
Java
47 lines
1.3 KiB
Java
/*
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* Copyright 2013-2015 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package sample;
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import java.util.Random;
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import lombok.SneakyThrows;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.cloud.sleuth.TraceManager;
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import org.springframework.scheduling.annotation.Async;
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import org.springframework.stereotype.Component;
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/**
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* @author Spencer Gibb
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*/
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@Component
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public class SampleBackground {
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@Autowired
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private TraceManager traceManager;
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@SneakyThrows
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@Async
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public void background() {
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final Random random = new Random();
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int millis = random.nextInt(1000);
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Thread.sleep(millis);
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this.traceManager.addAnnotation("background-sleep-millis", String.valueOf(millis));
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}
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}
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