110 lines
3.7 KiB
Java
110 lines
3.7 KiB
Java
/*
|
|
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
|
|
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
*
|
|
* This code is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 only, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This code is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
* version 2 for more details (a copy is included in the LICENSE file that
|
|
* accompanied this code).
|
|
*
|
|
* You should have received a copy of the GNU General Public License version
|
|
* 2 along with this work; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
* or visit www.oracle.com if you need additional information or have any
|
|
* questions.
|
|
*/
|
|
|
|
import java.io.ByteArrayOutputStream;
|
|
import java.io.IOException;
|
|
import java.io.PrintStream;
|
|
import java.lang.management.ManagementFactory;
|
|
import java.util.List;
|
|
import javax.management.MBeanServer;
|
|
import javax.management.ObjectName;
|
|
|
|
public class LoggingTest {
|
|
|
|
static class TestStream extends PrintStream {
|
|
final ByteArrayOutputStream bos = new ByteArrayOutputStream();
|
|
private volatile boolean recording;
|
|
public TestStream(PrintStream wrapped) {
|
|
super(wrapped);
|
|
}
|
|
|
|
void startRecording() {
|
|
recording = true;
|
|
}
|
|
|
|
void stopRecording() {
|
|
recording = false;
|
|
}
|
|
|
|
@Override
|
|
public void write(int b) {
|
|
if (recording) {
|
|
bos.write(b);
|
|
}
|
|
super.write(b);
|
|
}
|
|
|
|
@Override
|
|
public void write(byte[] buf, int off, int len) {
|
|
if (recording) {
|
|
bos.write(buf, off, len);
|
|
}
|
|
super.write(buf, off, len);
|
|
}
|
|
|
|
@Override
|
|
public void write(byte[] buf) throws IOException {
|
|
if (recording) {
|
|
bos.write(buf);
|
|
}
|
|
super.write(buf);
|
|
}
|
|
|
|
}
|
|
|
|
public void run(TestStream ts) {
|
|
|
|
// start recording traces and trigger creation of the platform
|
|
// MBeanServer to produce some. This won't work if the platform
|
|
// MBeanServer was already initialized - so it's important to
|
|
// run this test in its own JVM.
|
|
ts.startRecording();
|
|
MBeanServer platform = ManagementFactory.getPlatformMBeanServer();
|
|
ts.stopRecording();
|
|
String printed = ts.bos.toString();
|
|
ts.bos.reset();
|
|
|
|
// Check that the Platform MBeanServer is emitting the expected
|
|
// log traces. This can be a bit fragile because debug traces
|
|
// could be changed without notice - in which case this test will
|
|
// need to be updated.
|
|
// For each registered MBean we expect to see three traces.
|
|
// If the messages logged by the MBeanServer change then these checks
|
|
// may need to be revisited.
|
|
List<String> checkTraces =
|
|
List.of("ObjectName = %s", "name = %s", "JMX.mbean.registered %s");
|
|
|
|
for (ObjectName o : platform.queryNames(ObjectName.WILDCARD, null)) {
|
|
String n = o.toString();
|
|
System.out.println("Checking log for: " + n);
|
|
for (String check : checkTraces) {
|
|
String s = String.format(check, n);
|
|
if (!printed.contains(s)) {
|
|
throw new RuntimeException("Trace not found: " + s);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|