1 /* 2 * Copyright 2017, OpenCensus Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package io.opencensus.impl.trace.internal; 18 19 import io.opencensus.implcore.trace.internal.RandomHandler; 20 import java.util.Random; 21 import java.util.concurrent.ThreadLocalRandom; 22 import javax.annotation.concurrent.ThreadSafe; 23 24 /** Implementation of the {@link RandomHandler} using {@link ThreadLocalRandom}. */ 25 @ThreadSafe 26 public final class ThreadLocalRandomHandler extends RandomHandler { 27 28 /** Constructs a new {@code ThreadLocalRandomHandler}. */ ThreadLocalRandomHandler()29 public ThreadLocalRandomHandler() {} 30 31 @Override current()32 public Random current() { 33 return ThreadLocalRandom.current(); 34 } 35 } 36