/*
* Copyright 2015 NAVER Corp.
*
* 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 com.navercorp.pinpoint.profiler.context.active;
import static org.junit.Assert.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executors;
import com.navercorp.pinpoint.bootstrap.config.ProfilerConfig;
import com.navercorp.pinpoint.bootstrap.context.TraceContext;
import com.navercorp.pinpoint.profiler.context.id.DefaultTransactionCounter;
import com.navercorp.pinpoint.profiler.context.MockTraceContextFactory;
import org.junit.Before;
import org.junit.Test;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
import com.navercorp.pinpoint.bootstrap.context.Trace;
import com.navercorp.pinpoint.profiler.context.id.DefaultTraceId;
import com.navercorp.pinpoint.profiler.context.id.TransactionCounter;
import org.mockito.Mockito;
/**
* @author HyunGil Jeong
*/
public class ActiveTraceRepositoryTest {
private static final int SAMPLING_RATE = 3;
private TraceContext traceContext;
private TransactionCounter transactionCounter;
private ActiveTraceRepository activeTraceRepository;
@Before
public void setUp() {
final ProfilerConfig profilerConfig = Mockito.mock(ProfilerConfig.class);
Mockito.when(profilerConfig.isTraceAgentActiveThread()).thenReturn(true);
Mockito.when(profilerConfig.isSamplingEnable()).thenReturn(true);
Mockito.when(profilerConfig.getSamplingRate()).thenReturn(SAMPLING_RATE);
MockTraceContextFactory mockTraceContextFactory = MockTraceContextFactory.newTestTraceContextFactory(profilerConfig);
this.traceContext = mockTraceContextFactory.getTraceContext();
this.transactionCounter = new DefaultTransactionCounter(mockTraceContextFactory.getIdGenerator());
this.activeTraceRepository = mockTraceContextFactory.getActiveTraceRepository();
}
@Test
public void verifyActiveTraceCollectionAndTransactionCount() throws Exception {
// Given
final int newTransactionCount = 50;
@SuppressWarnings("unused")
final int expectedSampledNewCount = newTransactionCount / SAMPLING_RATE + (newTransactionCount % SAMPLING_RATE > 0 ? 1 : 0);
final int expectedUnsampledNewCount = newTransactionCount - expectedSampledNewCount;
final int expectedSampledContinuationCount = 20;
final int expectedUnsampledContinuationCount = 30;
final int expectedTotalTransactionCount = expectedSampledNewCount + expectedUnsampledNewCount + expectedSampledContinuationCount + expectedUnsampledContinuationCount;
final CountDownLatch awaitLatch = new CountDownLatch(1);
final CountDownLatch executeLatch = new CountDownLatch(expectedTotalTransactionCount);
// When
ListenableFuture<List<TraceThreadTuple>> futures = executeTransactions(awaitLatch, executeLatch, newTransactionCount, expectedSampledContinuationCount, expectedUnsampledContinuationCount);
executeLatch.await();
List<ActiveTraceInfo> activeTraceInfos = this.activeTraceRepository.collect();
awaitLatch.countDown();
List<TraceThreadTuple> executedTraces = futures.get();
Map<Long, TraceThreadTuple> executedTraceMap = new HashMap<Long, TraceThreadTuple>(executedTraces.size());
for (TraceThreadTuple tuple : executedTraces) {
executedTraceMap.put(tuple.id, tuple);
}
// Then
assertEquals(expectedSampledNewCount, transactionCounter.getSampledNewCount());
assertEquals(expectedUnsampledNewCount, transactionCounter.getUnSampledNewCount());
assertEquals(expectedSampledContinuationCount, transactionCounter.getSampledContinuationCount());
assertEquals(expectedUnsampledContinuationCount, transactionCounter.getUnSampledContinuationCount());
assertEquals(expectedTotalTransactionCount, transactionCounter.getTotalTransactionCount());
for (ActiveTraceInfo activeTraceInfo : activeTraceInfos) {
TraceThreadTuple executedTrace = executedTraceMap.get(activeTraceInfo.getLocalTraceId());
assertEquals(executedTrace.id, activeTraceInfo.getLocalTraceId());
assertEquals(executedTrace.startTime, activeTraceInfo.getStartTime());
assertEquals(executedTrace.thread, activeTraceInfo.getThread());
}
}
private ListenableFuture<List<TraceThreadTuple>> executeTransactions(CountDownLatch awaitLatch, CountDownLatch executeLatch, int newTransactionCount, int sampledContinuationCount, int unsampledContinuationCount) {
final int totalTransactionCount = newTransactionCount + sampledContinuationCount + unsampledContinuationCount;
final ListeningExecutorService executor = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(totalTransactionCount));
final List<ListenableFuture<TraceThreadTuple>> futures = new ArrayList<ListenableFuture<TraceThreadTuple>>();
for (int i = 0; i < newTransactionCount; ++i) {
futures.add(executeNewTrace(executor, awaitLatch, executeLatch));
}
for (int i = 0; i < sampledContinuationCount; ++i) {
futures.add(executeSampledContinuedTrace(executor, awaitLatch, executeLatch, i));
}
for (int i = 0; i < unsampledContinuationCount; ++i) {
futures.add(executeUnsampledContinuedTrace(executor, awaitLatch, executeLatch));
}
return Futures.allAsList(futures);
}
private ListenableFuture<TraceThreadTuple> executeNewTrace(ListeningExecutorService executorService, final CountDownLatch awaitLatch, final CountDownLatch executeLatch) {
return executorService.submit(new Callable<TraceThreadTuple>() {
@Override
public TraceThreadTuple call() throws Exception {
try {
return new TraceThreadTuple(traceContext.newTraceObject(), Thread.currentThread());
} finally {
executeLatch.countDown();
awaitLatch.await();
traceContext.removeTraceObject();
}
}
});
}
private ListenableFuture<TraceThreadTuple> executeSampledContinuedTrace(ListeningExecutorService executorService, final CountDownLatch awaitLatch, final CountDownLatch executeLatch, final long id) {
return executorService.submit(new Callable<TraceThreadTuple>() {
@Override
public TraceThreadTuple call() throws Exception {
try {
return new TraceThreadTuple(traceContext.continueTraceObject(new DefaultTraceId("agentId", 0L, id)), Thread.currentThread());
} finally {
executeLatch.countDown();
awaitLatch.await();
traceContext.removeTraceObject();
}
}
});
}
private ListenableFuture<TraceThreadTuple> executeUnsampledContinuedTrace(ListeningExecutorService executorService, final CountDownLatch awaitLatch, final CountDownLatch executeLatch) {
return executorService.submit(new Callable<TraceThreadTuple>() {
@Override
public TraceThreadTuple call() throws Exception {
try {
return new TraceThreadTuple(traceContext.disableSampling(), Thread.currentThread());
} finally {
executeLatch.countDown();
awaitLatch.await();
traceContext.removeTraceObject();
}
}
});
}
private static class TraceThreadTuple {
private final long id;
private final long startTime;
private final Thread thread;
private TraceThreadTuple(Trace trace, Thread thread) {
if (trace == null) {
throw new NullPointerException("trace must not be null");
}
this.id = trace.getId();
this.startTime = trace.getStartTime();
this.thread = thread;
}
}
}