io.airlift.tracetoken.TraceTokenManager Maven / Gradle / Ivy
/*
* Copyright 2010 Proofpoint, 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 io.airlift.tracetoken;
import java.util.concurrent.atomic.AtomicLong;
import static java.lang.String.format;
import static java.util.Locale.ENGLISH;
import static java.util.UUID.randomUUID;
public class TraceTokenManager
{
private final String prefix = randomUUID().toString().toLowerCase(ENGLISH).replace("-", "");
private final AtomicLong sequence = new AtomicLong();
private final ThreadLocal token = new ThreadLocal<>();
public void registerRequestToken(String token)
{
this.token.set(token);
}
public String getCurrentRequestToken()
{
return this.token.get();
}
public String createAndRegisterNewRequestToken()
{
String newToken = prefix + format("%010x", sequence.getAndIncrement());
this.token.set(newToken);
return newToken;
}
}