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package jdk.jfr.jcmd;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.time.Duration;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneOffset;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import jdk.jfr.Event;
import jdk.jfr.Recording;
import jdk.test.lib.Asserts;
import jdk.test.lib.process.OutputAnalyzer;
/**
* @test
* @summary The test verifies JFR.dump command
* @key jfr
* @requires vm.hasJFR
* @library /test/lib /test/jdk
* @run main/othervm jdk.jfr.jcmd.TestJcmdDumpLimited
*/
public class TestJcmdDumpLimited {
static class TestEvent extends Event {
int id;
int number;
}
static class TestRecording {
Instant time;
final Recording r;
Path path;
int size;
int total;
int id;
Instant now;
TestRecording(int id, int events) throws IOException, InterruptedException {
r = new Recording();
r.start();
for (int i = 0; i < events; i++) {
TestEvent event = new TestEvent();
event.id = id;
event.number = i;
event.commit();
if (i == events / 2) {
time = Instant.now();
}
}
r.stop();
Thread.sleep(1);
path = Paths.get("dump-" + id + ".jfr");
r.dump(path);
size = (int) Files.size(path);
this.id = id;
this.now = Instant.now();
}
public void close() {
r.close();
}
}
private static long totalSize;
private static long lastFiveSize;
private static long firstFiveSize;
private static long middleSize;
private static long centerSize;
private static long lastSize;
private static Instant middle;
private static Instant centerLeft;
private static Instant centerRight;
public static void main(String[] args) throws Exception {
List<TestRecording> recs = new ArrayList<>();
for (int i = 0; i < 9; i++) {
recs.add(new TestRecording(i, 100));
}
int last = 0;
List<TestRecording> reversed = new ArrayList<>(recs);
Collections.reverse(reversed);
for (TestRecording r : reversed) {
r.total = r.size + last;
last += r.size;
}
for (TestRecording r : recs) {
System.out.println("Recording " + r.id + ": size=" + r.size + " (total=" + r.total + ", time=" + r.now + ")");
}
centerLeft = recs.get(3).time;
middle = recs.get(4).time;
centerRight = recs.get(5).time;
totalSize = size(recs, 0, 9);
lastFiveSize = size(recs, 4, 5);
firstFiveSize = size(recs, 0, 5);
middleSize = size(recs, 4, 1);
centerSize = size(recs, 3, 3);
lastSize = size(recs, 8, 1);
testDump();
testDumpMaxSize();
testDumpMaxSizeSmall();
testDumpBegin();
testDumpEnd();
testDumpBeginEndInstant();
testDumpBeginEndLocalDateTime();
testDumpBeginEndLocalTime();
testDumpBeginEndSame();
testDumpMaxAge();
testDumpBeginEndRelative();
testDumpTooEarly();
testDumpTooLate();
testDumpBeginMaxAge();
TestDumpEndMaxage();
testDumpEndBegin();
testDumpInvalidTime();
}
private static int size(List<TestRecording> recs, int skip, int limit) {
return recs.stream().skip(skip).limit(limit).mapToInt(r -> r.size).sum();
}
private static void testDumpEndBegin() throws Exception {
Path testEndBegin = Paths.get("testEndBegin.jfr");
OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "filename=" + testEndBegin.toFile().getAbsolutePath(), "begin=" + Instant.now(), "end=" + Instant.now().minusSeconds(200));
output.shouldContain("Dump failed, begin must preceed end.");
assertMissingFile(testEndBegin);
}
private static void TestDumpEndMaxage() throws Exception {
Path testEndMaxAge = Paths.get("testEndMaxAge.jfr");
OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "filename=" + testEndMaxAge.toFile().getAbsolutePath(), "end=" + Instant.now(), "maxage=2h");
output.shouldContain("Dump failed, maxage can't be combined with begin or end.");
assertMissingFile(testEndMaxAge);
}
private static Path testDumpBeginMaxAge() throws Exception {
Path testBeginMaxAge = Paths.get("testBeginMaxAge.jfr");
OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "filename=" + testBeginMaxAge.toFile().getAbsolutePath(), "begin=" + Instant.now().minusSeconds(100), "maxage=2h");
output.shouldContain("Dump failed, maxage can't be combined with begin or end.");
assertMissingFile(testBeginMaxAge);
return testBeginMaxAge;
}
private static void testDumpTooLate() throws Exception {
Path missing = Paths.get("missing2.jfr");
OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "filename=" + missing.toFile().getAbsolutePath(), "begin=" + Instant.now().plus(Duration.ofHours(1)),
"end=" + Instant.now().plus(Duration.ofHours(2)));
output.shouldContain("Dump failed. No data found in the specified interval.");
assertMissingFile(missing);
}
private static void testDumpTooEarly() throws Exception {
Path missing = Paths.get("missing.jfr");
OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "filename=" + missing.toFile().getAbsolutePath(), "end=" + Instant.now().minus(Duration.ofHours(1)));
output.shouldContain("Dump failed. No data found in the specified interval.");
assertMissingFile(missing);
}
private static void testDumpBeginEndRelative() throws IOException {
Path testBeginEndRelative = Paths.get("testBeginEndRelative.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testBeginEndRelative.toFile().getAbsolutePath(), "begin=-3h", "end=-0s");
Asserts.assertEquals(totalSize, Files.size(testBeginEndRelative), "Expected dump with begin=-3h end=0s to contain data from all recordings");
Files.delete(testBeginEndRelative);
}
private static void testDumpMaxAge() throws IOException {
Path testMaxAge = Paths.get("testMaxAge.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testMaxAge.toFile().getAbsolutePath(), "maxage=2h");
Asserts.assertEquals(totalSize, Files.size(testMaxAge), "Expected dump with maxage=2h to contain data from all recordings");
Files.delete(testMaxAge);
}
private static void testDumpBeginEndSame() throws IOException {
Path testBeginEnd = Paths.get("testBeginEndSame.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testBeginEnd.toFile().getAbsolutePath(), "begin=" + middle, "end=" + middle);
Asserts.assertEquals(middleSize, Files.size(testBeginEnd), "Expected dump with begin=" + middle + "end=" + middle + " contain data from middle recording");
Files.delete(testBeginEnd);
}
private static void testDumpBeginEndInstant() throws IOException {
Path testBeginEnd = Paths.get("testBeginEndInstant.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testBeginEnd.toFile().getAbsolutePath(), "begin=" + centerLeft, "end=" + centerRight);
Asserts.assertEquals(centerSize, Files.size(testBeginEnd), "Expected dump with begin=" + centerLeft + " end=" + centerRight + " contain data from the 'center'-recordings");
Files.delete(testBeginEnd);
}
private static void testDumpBeginEndLocalDateTime() throws IOException {
LocalDateTime centerLeftLocal = LocalDateTime.ofInstant(centerLeft, ZoneOffset.systemDefault());
LocalDateTime centerRightLocal = LocalDateTime.ofInstant(centerRight, ZoneOffset.systemDefault());
Path testBeginEnd = Paths.get("testBeginEndLocalDateTime.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testBeginEnd.toFile().getAbsolutePath(), "begin=" + centerLeftLocal, "end=" + centerRightLocal);
Asserts.assertEquals(centerSize, Files.size(testBeginEnd), "Expected dump with begin=" + centerLeftLocal + " end=" + centerRightLocal + " contain data from the 'center'-recordings");
Files.delete(testBeginEnd);
}
private static void testDumpBeginEndLocalTime() throws IOException {
LocalTime centerLeftLocal = LocalTime.ofInstant(centerLeft, ZoneOffset.systemDefault());
LocalTime centerRightLocal = LocalTime.ofInstant(centerRight, ZoneOffset.systemDefault());
Path testBeginEnd = Paths.get("testBeginEndLocalTime.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testBeginEnd.toFile().getAbsolutePath(), "begin=" + centerLeftLocal, "end=" + centerRightLocal);
Asserts.assertEquals(centerSize, Files.size(testBeginEnd), "Expected dump with begin=" + centerLeftLocal + " end=" + centerRightLocal + " contain data from the 'center'-recordings");
Files.delete(testBeginEnd);
}
private static void testDumpEnd() throws IOException {
Path testEnd = Paths.get("testEnd.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testEnd.toFile().getAbsolutePath(), "end=" + middle);
Asserts.assertEquals(firstFiveSize, Files.size(testEnd), "Expected dump with end=" + middle + " to contain data from the five first recordings");
Files.delete(testEnd);
}
private static void testDumpBegin() throws IOException {
Path testBegin = Paths.get("testBegin.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testBegin.toFile().getAbsolutePath(), "begin=" + middle);
Asserts.assertEquals(lastFiveSize, Files.size(testBegin), "Expected dump with begin=" + middle + " to contain data from the last five recordings");
Files.delete(testBegin);
}
private static void testDumpMaxSize() throws IOException {
Path testMaxSize = Paths.get("testMaxSize.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testMaxSize.toFile().getAbsolutePath(), "maxsize=" + lastFiveSize);
Asserts.assertEquals(lastFiveSize, Files.size(testMaxSize), "Expected dump with maxsize=" + lastFiveSize + " to contain data from the last five recordings");
Files.delete(testMaxSize);
}
private static void testDumpMaxSizeSmall() throws IOException {
Path testMaxSizeSmall = Paths.get("testMaxSizeSmall.jfr");
JcmdHelper.jcmd("JFR.dump", "filename=" + testMaxSizeSmall.toFile().getAbsolutePath(), "maxsize=1k");
Asserts.assertEquals(lastSize, Files.size(testMaxSizeSmall), "Expected dump with maxsize=1k to contain data from the last recording");
Files.delete(testMaxSizeSmall);
}
private static void testDump() throws IOException {
Path all = Paths.get("all.jfr");
OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "filename=" + all.toFile().getAbsolutePath());
JcmdAsserts.assertRecordingDumpedToFile(output, all.toFile());
Asserts.assertEquals(totalSize, Files.size(all), "Expected dump to be sum of all recordings");
Files.delete(all);
}
private static void testDumpInvalidTime() throws Exception {
Path invalidTime = Paths.get("invalidTime.jfr");
OutputAnalyzer output = JcmdHelper.jcmd("JFR.dump", "filename=" + invalidTime.toFile().getAbsolutePath(), "begin=4711");
output.shouldContain("Dump failed, not a valid begin time.");
assertMissingFile(invalidTime);
}
private static void assertMissingFile(Path missing) throws Exception {
if (Files.exists(missing)) {
throw new Exception("Unexpected dumpfile found");
}
}
}