org.apache.geronimo.microprofile.opentracing.impl.ScopeManagerImpl Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
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package org.apache.geronimo.microprofile.opentracing.impl;
import javax.enterprise.context.ApplicationScoped;
import io.opentracing.Scope;
import io.opentracing.ScopeManager;
import io.opentracing.Span;
@ApplicationScoped
public class ScopeManagerImpl implements ScopeManager {
private final ThreadLocal current = new ThreadLocal<>();
@Override
public Scope activate(final Span span, final boolean finishSpanOnClose) {
final Thread thread = Thread.currentThread();
final Scope oldScope = current.get();
final ScopeImpl newScope = new ScopeImpl(() -> {
if (Thread.currentThread() == thread) {
current.set(oldScope);
} // else error?
}, span, finishSpanOnClose);
current.set(newScope);
return newScope;
}
@Override
public Scope active() {
final Scope scope = current.get();
if (scope == null) {
current.remove();
}
return scope;
}
public void clear() {
current.remove();
}
}
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