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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 *
 * Copyright 2023 Red Hat, Inc.
 *
 * 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 org.jboss.logging;

import static org.jboss.logmanager.Logger.AttachmentKey;

import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

import org.jboss.logmanager.LogContext;
import org.jboss.logmanager.MDC;
import org.jboss.logmanager.NDC;

/**
 * An implementation of the {@linkplain LoggerProvider log provider} for the JBoss Log Manager.
 */
public final class JBossLogManagerProvider implements LoggerProvider {

    private static final AttachmentKey KEY = new AttachmentKey<>();
    private static final AttachmentKey> LEGACY_KEY = new AttachmentKey<>();

    @Override
    public Logger getLogger(final String name) {
        final SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            return AccessController.doPrivileged((PrivilegedAction) () -> {
                try {
                    return doGetLogger(name);
                } catch (NoSuchMethodError ignore) {
                }
                // fallback
                return doLegacyGetLogger(name);
            });
        } else {
            try {
                return doGetLogger(name);
            } catch (NoSuchMethodError ignore) {
            }
            // fallback
            return doLegacyGetLogger(name);
        }
    }

    private static Logger doLegacyGetLogger(final String name) {
        final org.jboss.logmanager.Logger lmLogger = LogContext.getLogContext().getLogger("");
        ConcurrentMap loggers = lmLogger.getAttachment(LEGACY_KEY);
        if (loggers == null) {
            loggers = new ConcurrentHashMap<>();
            final ConcurrentMap appearing = lmLogger.attachIfAbsent(LEGACY_KEY, loggers);
            if (appearing != null) {
                loggers = appearing;
            }
        }

        Logger l = loggers.get(name);
        if (l != null) {
            return l;
        }

        final org.jboss.logmanager.Logger logger = org.jboss.logmanager.Logger.getLogger(name);
        l = new JBossLogManagerLogger(name, logger);
        final Logger appearing = loggers.putIfAbsent(name, l);
        if (appearing == null) {
            return l;
        }
        return appearing;
    }

    private static Logger doGetLogger(final String name) {
        Logger l = LogContext.getLogContext().getAttachment(name, KEY);
        if (l != null) {
            return l;
        }
        final org.jboss.logmanager.Logger logger = org.jboss.logmanager.Logger.getLogger(name);
        l = new JBossLogManagerLogger(name, logger);
        Logger a = logger.attachIfAbsent(KEY, l);
        if (a == null) {
            return l;
        } else {
            return a;
        }
    }

    @Override
    public void clearMdc() {
        MDC.clear();
    }

    @Override
    public Object putMdc(final String key, final Object value) {
        return MDC.putObject(key, value);
    }

    @Override
    public Object getMdc(final String key) {
        return MDC.getObject(key);
    }

    @Override
    public void removeMdc(final String key) {
        MDC.removeObject(key);
    }

    @Override
    public Map getMdcMap() {
        // we can re-define the erasure of this map because MDC does not make further use of the copy
        return MDC.copyObject();
    }

    @Override
    public void clearNdc() {
        NDC.clear();
    }

    @Override
    public String getNdc() {
        return NDC.get();
    }

    @Override
    public int getNdcDepth() {
        return NDC.getDepth();
    }

    @Override
    public String popNdc() {
        return NDC.pop();
    }

    @Override
    public String peekNdc() {
        return NDC.get();
    }

    @Override
    public void pushNdc(final String message) {
        NDC.push(message);
    }

    @Override
    public void setNdcMaxDepth(final int maxDepth) {
        NDC.trimTo(maxDepth);
    }
}