/*
* Copyright 2011-2016 the original author or authors.
*
* 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 org.glowroot.agent.tests;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import com.google.common.base.Stopwatch;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.glowroot.agent.it.harness.AppUnderTest;
import org.glowroot.agent.it.harness.Container;
import org.glowroot.agent.it.harness.Containers;
import org.glowroot.agent.it.harness.TransactionMarker;
import org.glowroot.agent.tests.app.LevelOne;
import org.glowroot.agent.tests.app.LogError;
import org.glowroot.wire.api.model.AgentConfigOuterClass.AgentConfig.AdvancedConfig;
import org.glowroot.wire.api.model.TraceOuterClass.Trace;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.assertj.core.api.Assertions.assertThat;
public class MaxEntriesLimitIT {
private static Container container;
@BeforeClass
public static void setUp() throws Exception {
container = Containers.create();
// capture one header to warm up the system since this test involves some timing
container.execute(WarmupTrace.class);
}
@AfterClass
public static void tearDown() throws Exception {
container.close();
}
@After
public void afterEachTest() throws Exception {
container.checkAndReset();
}
@Test
public void shouldReadIsLimitExceededMarker() throws Exception {
// given
container.getConfigService().updateAdvancedConfig(AdvancedConfig.newBuilder()
.setMaxTraceEntriesPerTransaction(ProtoOptional.of(100))
.setImmediatePartialStoreThresholdSeconds(ProtoOptional.of(1))
.build());
// when
ExecutorService executor = Executors.newSingleThreadExecutor();
Future<Trace> future = executor.submit(new Callable<Trace>() {
@Override
public Trace call() throws Exception {
return container.execute(GenerateLotsOfEntries.class);
}
});
// then
// integration test harness needs to kick off test, so may need to wait a little
Stopwatch stopwatch = Stopwatch.createStarted();
Trace trace = null;
Trace.Header header = null;
while (stopwatch.elapsed(SECONDS) < 10000) {
trace = container.getCollectedPartialTrace();
header = trace.getHeader();
if (header.getEntryCount() == 100 && header.getEntryLimitExceeded()) {
break;
}
// otherwise continue
Thread.sleep(10);
}
assertThat(header).isNotNull();
assertThat(header.getPartial()).isTrue();
assertThat(header.getEntryCount()).isEqualTo(100);
assertThat(header.getEntryLimitExceeded()).isTrue();
// cleanup trace
container.interruptAppUnderTest();
future.get();
executor.shutdown();
if (!executor.awaitTermination(10, SECONDS)) {
throw new IllegalStateException("Could not terminate executor");
}
}
@Test
public void shouldReadLimitBypassedTraceEntries() throws Exception {
// given
container.getConfigService().updateAdvancedConfig(AdvancedConfig.newBuilder()
.setMaxTraceEntriesPerTransaction(ProtoOptional.of(100))
.build());
// when
Trace trace = container.execute(GenerateLimitBypassedEntries.class);
// then
assertThat(trace.getHeader().getEntryCount()).isEqualTo(101);
assertThat(trace.getHeader().getEntryLimitExceeded()).isTrue();
List<Trace.Entry> entries = trace.getEntryList();
assertThat(entries).hasSize(101);
assertThat(entries.get(100).getMessage()).isEqualTo("ERROR -- abc");
}
public static class GenerateLotsOfEntries implements AppUnderTest, TransactionMarker {
@Override
public void executeApp() throws Exception {
transactionMarker();
}
@Override
public void transactionMarker() {
while (true) {
new LevelOne().call("a", "b");
if (Thread.interrupted()) {
return;
}
}
}
}
public static class GenerateLimitBypassedEntries implements AppUnderTest, TransactionMarker {
@Override
public void executeApp() throws Exception {
transactionMarker();
}
@Override
public void transactionMarker() {
for (int i = 0; i < 1000; i++) {
new LevelOne().call("a", "b");
}
new LogError().log("abc");
}
}
public static class WarmupTrace implements AppUnderTest, TransactionMarker {
@Override
public void executeApp() throws InterruptedException {
transactionMarker();
}
@Override
public void transactionMarker() throws InterruptedException {
Thread.sleep(1);
}
}
}