| /* |
| * 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.htrace.core; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ThreadFactory; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import org.junit.Test; |
| |
| public class TestTraceExecutor { |
| private static final int WAIT_TIME_SECONDS = 60; |
| |
| @Test |
| public void testExecutorWithNullScope() throws Exception { |
| HTraceConfiguration conf = HTraceConfiguration.fromKeyValuePairs("sampler.classes", "AlwaysSampler"); |
| ExecutorService es = null; |
| try (Tracer tracer = new Tracer.Builder("TestTraceExecutor").conf(conf).build()) { |
| es = Executors.newSingleThreadExecutor(new NamingThreadFactory()); |
| es = tracer.newTraceExecutorService(es); |
| |
| try (TraceScope scope = tracer.newScope("TestRunnable")) { |
| final AtomicReference<String> description = new AtomicReference<String>(""); |
| es.submit(new Runnable() { |
| @Override |
| public void run() { |
| description.set(Tracer.getCurrentSpan().getDescription()); |
| } |
| }).get(WAIT_TIME_SECONDS, TimeUnit.SECONDS); |
| assertEquals("TraceRunnable did not set description correctly", "child-thread-1", description.get()); |
| } |
| |
| try (TraceScope scope = tracer.newScope("TestCallable")) { |
| String description = es.submit(new Callable<String>() { |
| @Override |
| public String call() throws Exception { |
| return Tracer.getCurrentSpan().getDescription(); |
| } |
| }).get(WAIT_TIME_SECONDS, TimeUnit.SECONDS); |
| assertEquals("TraceCallable did not set description correctly", "child-thread-1", description); |
| } |
| } finally { |
| if (es != null) { |
| es.shutdown(); |
| } |
| } |
| } |
| |
| /* |
| * Inspired by org.apache.solr.util.DefaultSolrThreadFactory |
| */ |
| static class NamingThreadFactory implements ThreadFactory { |
| private final ThreadGroup group; |
| private final AtomicInteger threadNumber = new AtomicInteger(1); |
| |
| public NamingThreadFactory() { |
| SecurityManager s = System.getSecurityManager(); |
| group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup(); |
| } |
| |
| @Override |
| public Thread newThread(Runnable r) { |
| return new Thread(group, r, "child-thread-" + threadNumber.getAndIncrement(), 0); |
| } |
| } |
| } |