/*

 * Copyright (c) 2016, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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 jdk.internal.logger;

import java.util.function.Function;

import sun.util.logging.PlatformLogger;

/**

 * A simple console logger used to emulate the behavior of JUL loggers when

 * java.util.logging has no custom configuration.

 * Surrogate loggers are usually only used temporarily, until the LogManager

 * is initialized. At this point, the surrogates are replaced by an actual

 * logger obtained from LogManager.

 */

public final class SurrogateLogger extends SimpleConsoleLogger {

    private static final PlatformLogger.Level JUL_DEFAULT_LEVEL =

            PlatformLogger.Level.INFO;

    private static volatile String simpleFormatString;

    SurrogateLogger(String name) {

        super(name, true);

    }

    @Override

    PlatformLogger.Level defaultPlatformLevel() {

        return JUL_DEFAULT_LEVEL;

    }

    @Override

    String getSimpleFormatString() {

        if (simpleFormatString == null) {

            simpleFormatString = getSimpleFormat(null);

        }

        return simpleFormatString;

    }

    public static String getSimpleFormat(Function<String, String> defaultPropertyGetter) {

        return Formatting.getSimpleFormat(Formatting.JUL_FORMAT_PROP_KEY, defaultPropertyGetter);

    }

    public static SurrogateLogger makeSurrogateLogger(String name) {

        return new SurrogateLogger(name);

    }

    public static boolean isFilteredFrame(StackWalker.StackFrame st) {

        return Formatting.isFilteredFrame(st);

    }

}