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/*
* Copyright (c) 2004, 2018, 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.
*/
package nsk.monitoring.MemoryPoolMBean.getUsageThreshold;
import java.io.*;
import java.util.*;
import nsk.share.*;
import nsk.monitoring.share.*;
public class getthreshold001 {
private static boolean testFailed = false;
static MemoryMonitor monitor;
public static void main(String[] argv) {
System.exit(Consts.JCK_STATUS_BASE + run(argv, System.out));
}
public static int run(String[] argv, PrintStream out) {
ArgumentHandler argHandler = new ArgumentHandler(argv);
Log log = new Log(out, argHandler);
monitor = Monitor.getMemoryMonitor(log, argHandler);
List pools = monitor.getMemoryPoolMBeans();
for (int i = 0; i < pools.size(); i++) {
Object pool = pools.get(i);
log.display(i + " pool " + monitor.getName(pool));
boolean isSupported = monitor.isUsageThresholdSupported(pool);
if (isSupported) {
log.display(" supports usage thresholds");
// Test three values for the threshold
long max = monitor.getUsage(pool).getMax();
long used = monitor.getUsage(pool).getUsed();
// max value can be -1, so take an absolute value
test(monitor, pool, Math.abs(max), log);
test(monitor, pool, 0, log);
test(monitor, pool, used, log);
} else {
log.display(" does not support usage thresholds");
// UnsupportedOperationException is expected
try {
long threshold = monitor.getUsageThreshold(pool);
log.complain("Threshold " + threshold + " is returned "
+ "instead of UnsupportedOperationException "
+ "in pool " + monitor.getName(pool));
testFailed = true;
} catch (Exception e) {
Throwable unwrapped = unwrap(e);
if (unwrapped instanceof UnsupportedOperationException) {
log.display(" UnsupportedOperationException is "
+ "thrown");
} else {
log.complain("Incorrect execption " + unwrapped
+ " is thrown, "
+ "UnsupportedOperationException is "
+ "expected in pool "
+ monitor.getName(pool));
unwrapped.printStackTrace(log.getOutStream());
testFailed = true;
}
} // try
}
} // for i
if (testFailed)
out.println("TEST FAILED");
return (testFailed) ? Consts.TEST_FAILED : Consts.TEST_PASSED;
}
private static void test(MemoryMonitor monitor, Object pool,
long threshold, Log log) {
log.display(" setting threshold " + threshold);
try {
monitor.setUsageThreshold(pool, threshold);
} catch (Exception e) {
log.complain("Unexpected exception " + e);
e.printStackTrace(log.getOutStream());
testFailed = true;
return;
}
log.display(" threshold " + threshold + " is set");
long result = monitor.getUsageThreshold(pool);
if (threshold != result) {
log.complain("Threshold value is " + result + " in pool "
+ monitor.getName(pool) + ", " + threshold
+ " expected");
testFailed = true;
}
log.display(" threshold " + threshold + " is read");
} // test()
static Throwable unwrap(Throwable throwable) {
Throwable unwrapped, t = throwable;
do {
unwrapped = t;
if (unwrapped instanceof UnsupportedOperationException) {
break;
}
t = unwrapped.getCause();
} while (t != null);
return unwrapped;
}
}
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