Java example source code file (LoggingMXBeanTest2.java)

This example Java source code file (LoggingMXBeanTest2.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

could, detect, expected, fine, illegalargumentexception, level, log, logger_name_1, logger_name_2, loggers, logging, loggingmxbeantest2, runtimeexception, severe, string, unknown_logger_name, util

The LoggingMXBeanTest2.java Java example source code

/*
 * Copyright (c) 2004, 2012, 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.
 */

/*
 * @test
 * @bug     5007165
 * @summary Basic Test for LoggingMXBean (direct access to MXBean)
 * @author  Mandy Chung
 *
 * @build LoggingMXBeanTest2
 * @run main LoggingMXBeanTest2
 */

import java.util.logging.*;
import java.util.List;
import java.util.ListIterator;

public class LoggingMXBeanTest2
{
    static LoggingMXBean mbean = LogManager.getLoggingMXBean();
    static String LOGGER_NAME_1 = "com.sun.management.Logger";
    static String LOGGER_NAME_2 = "com.sun.management.Logger.Logger2";
    static String UNKNOWN_LOGGER_NAME = "com.sun.management.Unknown";
    static Logger logger1;
    static Logger logger2;

    public LoggingMXBeanTest2() throws Exception {

        logger1 = Logger.getLogger( LOGGER_NAME_1 );
        logger1.setLevel(Level.FINE);
        logger2 = Logger.getLogger( LOGGER_NAME_2 );
        logger2.setLevel(null);

        /*
         *  Check for the existence of our new Loggers
         */
        System.out.println("Test Logger Name retrieval (getLoggerNames)");
        boolean log1 = false, log2 = false;
        List<String> loggers = mbean.getLoggerNames();
        if (loggers == null || loggers.size() < 2) {
            throw new RuntimeException(
                "Could not Detect the presense of the new Loggers");
        }

        for (ListIterator<String> iter = loggers.listIterator(); iter.hasNext(); ) {
            String logger = iter.next();
            if (logger.equals(LOGGER_NAME_1)) {
                log1 = true;
                System.out.println("  : Found new Logger : " + logger);
            }
            if (logger.equals(LOGGER_NAME_2)) {
                log2 = true;
                System.out.println("  : Found new Logger : " + logger);
            }
        }
        if ( log1 && log2 )
            System.out.println("  : PASSED." );
        else {
            System.out.println("  : FAILED.  Could not Detect the new Loggers." );
            throw new RuntimeException(
                "Could not Detect the presense of the new Loggers");
        }

        System.out.println("Test getLoggerLevel");
        String l1 = mbean.getLoggerLevel(LOGGER_NAME_1);
        System.out.println("  : Level for Logger " + LOGGER_NAME_1 + " : " + l1);
        if (!l1.equals(Level.FINE.getName())) {
            throw new RuntimeException(
                "Expected level for " + LOGGER_NAME_1 + " = " +
                 Level.FINE.getName() + " but got " + l1);
        }
        String l2 = mbean.getLoggerLevel(LOGGER_NAME_2);
        System.out.println("  : Level for Logger " + LOGGER_NAME_2 + " : " + l2);
        if (!l2.equals("")) {
            throw new RuntimeException(
                "Expected level for " + LOGGER_NAME_2 + " = \"\"" +
                 " but got " + l2);
        }
        String l3 = mbean.getLoggerLevel(UNKNOWN_LOGGER_NAME);
        System.out.println("  : Level for unknown logger : " + l3);
        if (l3 != null) {
            throw new RuntimeException(
                "Expected level for " + UNKNOWN_LOGGER_NAME + " = null" +
                 " but got " + l3);
        }

        System.out.println("Test setLoggerLevel");
        mbean.setLoggerLevel(LOGGER_NAME_1, "INFO");
        System.out.println("  : Set Level for Logger " + LOGGER_NAME_1 + " to: INFO");
        Level l = logger1.getLevel();
        if (l != Level.INFO) {
            throw new RuntimeException(
                "Expected level for " + LOGGER_NAME_1 + " = " +
                 Level.INFO + " but got " + l);
        }

        mbean.setLoggerLevel(LOGGER_NAME_2, "SEVERE");
        System.out.println("  : Set Level for Logger " + LOGGER_NAME_2 + " to: SERVER");
        l = logger2.getLevel();
        if (l != Level.SEVERE) {
            throw new RuntimeException(
                "Expected level for " + LOGGER_NAME_2 + " = " +
                 Level.SEVERE+ " but got " + l);
        }

        mbean.setLoggerLevel(LOGGER_NAME_1, null);
        System.out.println("  : Set Level for Logger " + LOGGER_NAME_1 + " to: null");
        l = logger1.getLevel();
        if (l != null) {
            throw new RuntimeException(
                "Expected level for " + LOGGER_NAME_1 + " = null " +
                 " but got " + l);
        }

        boolean iaeCaught = false;
        System.out.println("  : Set Level for unknown Logger to: FINE");
        try {
            mbean.setLoggerLevel(UNKNOWN_LOGGER_NAME, "FINE");
        } catch (IllegalArgumentException e) {
            // expected
            iaeCaught = true;
            System.out.println("      : IllegalArgumentException caught as expected");
        }
        if (!iaeCaught) {
            throw new RuntimeException(
                "Expected IllegalArgumentException for setting level for " +
                UNKNOWN_LOGGER_NAME + " not thrown");
        }
        iaeCaught = false;
        System.out.println("  : Set Level for Logger " + LOGGER_NAME_1 + " to: DUMMY");
        try {
            mbean.setLoggerLevel(LOGGER_NAME_1, "DUMMY");
        } catch (IllegalArgumentException e) {
            // expected
            iaeCaught = true;
            System.out.println("      : IllegalArgumentException caught as expected");
        }
        if (!iaeCaught) {
            throw new RuntimeException(
                "Expected IllegalArgumentException for invalid level.");
        }


        System.out.println("Test getParentLoggerName");
        String p1 = mbean.getParentLoggerName(LOGGER_NAME_2);
        System.out.println("  : Parent Logger for " + LOGGER_NAME_2 + " : " + p1);
        if (!p1.equals(LOGGER_NAME_1)) {
            throw new RuntimeException(
                "Expected parent for " + LOGGER_NAME_2 + " = " +
                LOGGER_NAME_1 + " but got " + p1);
        }
        String p2 = mbean.getParentLoggerName("");
        System.out.println("  : Parent Logger for \"\" : " + p2);
        if (!p2.equals("")) {
            throw new RuntimeException(
                "Expected parent for root logger \"\" = \"\"" +
                " but got " + p2);
        }
        String p3 = mbean.getParentLoggerName(UNKNOWN_LOGGER_NAME);
        System.out.println("  : Parent Logger for unknown logger : " + p3);
        if (p3 != null) {
            throw new RuntimeException(
                "Expected level for " + UNKNOWN_LOGGER_NAME + " = null" +
                 " but got " + p3);
        }
    }

    public static void main(String[] argv) throws Exception {
        new LoggingMXBeanTest2();
    }
}