| /* |
| * 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. |
| */ |
| 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<Scope> 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(); |
| } |
| } |