net.openhft.chronicle.logger.jul.ChronicleLoggerManager Maven / Gradle / Ivy

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/*
 * Copyright 2014-2020 chronicle.software
 *
 *       https://chronicle.software
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.openhft.chronicle.logger.jul;

import net.openhft.chronicle.logger.ChronicleLogManager;
import net.openhft.chronicle.logger.ChronicleLogWriter;

import java.io.IOException;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.LogManager;
import java.util.logging.Logger;

public class ChronicleLoggerManager extends LogManager {

    private final Map loggers;
    private final ChronicleLogManager manager;

    public ChronicleLoggerManager() {
        this.loggers = new ConcurrentHashMap<>();
        this.manager = ChronicleLogManager.getInstance();
    }

    @Override
    public boolean addLogger(final Logger logger) {
        return false;
    }

    @Override
    public Logger getLogger(final String name) {
        try {
            return doGetLogger(name);
        } catch (Exception e) {
            System.err.println("Unable to initialize chronicle-logger-jul (" + name + ")\n  " + e.getMessage());
        }

        return ChronicleLogger.Null.INSTANCE;
    }

    @Override
    public Enumeration getLoggerNames() {
        return Collections.enumeration(this.loggers.keySet());
    }

    @Override
    public void reset() throws SecurityException {
        this.loggers.clear();
        this.manager.clear();
    }

    // *************************************************************************
    //
    // *************************************************************************

    private synchronized Logger doGetLogger(String name) throws IOException {
        Logger logger = loggers.get(name);
        if (logger == null) {
            final ChronicleLogWriter writer = manager.getWriter(name);
            logger = new ChronicleLogger(
                    writer,
                    name,
                    manager.cfg().getLevel(name));
            loggers.put(name, logger);
        }

        return logger;
    }
}