content: /*
   *
   * 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 com.alibaba.cloudapp.api.messaging;
  
  public class ThreadLocalTraceStorage implements TraceStorage {
  
      private static final ThreadLocal<String> TRACE_LOCAL = new ThreadLocal<>();
      private static final ThreadLocal<String> SPAN_LOCAL = new ThreadLocal<>();
  
      public void setTraceId(String traceId) {
          TRACE_LOCAL.set(traceId);
      }
  
      public String getTraceId() {
          return TRACE_LOCAL.get();
      }
  
      public void setSpanId(String spanId) {
          SPAN_LOCAL.set(spanId);
      }
  
      public String getSpanId() {
          return SPAN_LOCAL.get();
      }
  
      public void clearTrace() {
          TRACE_LOCAL.remove();
      }
  
      public void clearSpan() {
          SPAN_LOCAL.remove();
      }
  }
  