LoggerSubclass.java

/*
 * Copyright 2009 Google, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/*
 * @test
 * @bug 6830220
 * @summary Test Logger subclasses
 */

import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.logging.LogRecord;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;

public class LoggerSubclass {
    void test(String[] args) {
        final String name = "myLogger";
        final String message = "myMessage";
        final AtomicInteger getHandlerCount = new AtomicInteger(0);
        final AtomicLong lastSequenceNumber = new AtomicLong(-1L);
        final AtomicInteger lastThreadID = new AtomicInteger(-1);
        final Logger logger = new Logger(name, null) {
            public Handler[] getHandlers() {
                getHandlerCount.getAndIncrement();
                return super.getHandlers();
            }};
        equal(logger.getName(), name);
        equal(logger.getResourceBundle(), null);
        equal(logger.getFilter(), null);
        equal(logger.getLevel(), null);
        check(logger.isLoggable(Level.WARNING));
        logger.addHandler(new Handler() {
            public void close() {}
            public void flush() {}
            public void publish(LogRecord l) {
                equal(l.getLoggerName(), name);
                equal(l.getMessage(), message);
                equal(l.getResourceBundle(), null);
                equal(l.getSourceClassName(), "LoggerSubclass");
                equal(l.getSourceMethodName(), "test");
                equal(l.getThrown(), null);
                equal(l.getLevel(), Level.WARNING);

                if (lastSequenceNumber.get() != -1) {
                    equal(lastSequenceNumber.get() + 1,
                          l.getSequenceNumber());
                    equal(lastThreadID.get(),
                          l.getThreadID());
                }
                lastSequenceNumber.set(l.getSequenceNumber());
                lastThreadID.set(l.getThreadID());
            }});
        for (int i = 1; i < 4; i++) {
            logger.warning(message); // Should invoke getHandlers()
            equal(i, getHandlerCount.get());
        }
    }

    //--------------------- Infrastructure ---------------------------
    volatile int passed = 0, failed = 0;
    void pass() {passed++;}
    void fail() {failed++; Thread.dumpStack();}
    void fail(String msg) {System.err.println(msg); fail();}
    void unexpected(Throwable t) {failed++; t.printStackTrace();}
    void check(boolean cond) {if (cond) pass(); else fail();}
    void equal(Object x, Object y) {
        if (x == null ? y == null : x.equals(y)) pass();
        else fail(x + " not equal to " + y);}
    public static void main(String[] args) throws Throwable {
        try {new LoggerSubclass().instanceMain(args);}
        catch (Throwable e) {throw e.getCause();}}
    public void instanceMain(String[] args) throws Throwable {
        try {test(args);} catch (Throwable t) {unexpected(t);}
        System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
        if (failed > 0) throw new AssertionError("Some tests failed");}
}