Time to create a Jira and attach a patch for a new module then.

Will you be able to maintain it?

Gary

<div>-------- Original message --------</div><div>From: Mikael Ståldal 
<mikael.stal...@appearnetworks.com> </div><div>Date:05/14/2014  12:26  
(GMT-05:00) </div><div>To: Log4J <log4j-dev@logging.apache.org> 
</div><div>Subject: Log4j 2 plugin to Liquibase </div><div>
</div>I have made an Log4j 2 plugin to Liquibase (http://www.liquibase.org/).

It seems like the Liquibase project don't want this kind of stuff in their own 
project, they seems to encourage third-party plugins.

But I would like this to be available as a public Maven dependency. So I wonder 
if it's possible to include it as part of the Log4j project (as I separate 
module I guess)?

I have signed an Apache CLA, and I am willing to contribute the code.

(The class have to be in the liquibase package in order for the Liquibase 
plugin discovery to work.)


/*
 * Copyright (c) 2014, Appear Networks. All Rights Reserved.
 *
 * 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 liquibase.ext.logging.log4j2;

import liquibase.changelog.ChangeSet;
import liquibase.changelog.DatabaseChangeLog;
import liquibase.logging.core.AbstractLogger;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

/**
 * Logging to Log4j 2.x.
 */
public class Log4j2Logger extends AbstractLogger {

    private Logger logger;
    private String changeLogName = null;
    private String changeSetName = null;

    @Override
    public int getPriority() {
        return 5;
    }

    @Override
    public void setName(String name) {
        logger = LogManager.getLogger(name);
    }

    @Override
    public void setChangeLog(DatabaseChangeLog databaseChangeLog) {
        if (databaseChangeLog == null) {
            changeLogName = null;
        } else {
            changeLogName = databaseChangeLog.getFilePath();
        }
    }

    @Override
    public void setChangeSet(ChangeSet changeSet) {
        changeSetName = (changeSet == null ? null : changeSet.toString(false));
    }

    @Override
    public void setLogLevel(String logLevel, String logFile) {
        setLogLevel(logLevel);
        // ignore logFile
    }

    @Override
    public void severe(String message) {
        if (logger.isErrorEnabled()) {
            logger.error(formatMessage(message));
        }
    }

    @Override
    public void severe(String message, Throwable e) {
        if (logger.isErrorEnabled()) {
            logger.error(formatMessage(message), e);
        }
    }

    @Override
    public void warning(String message) {
        if (logger.isWarnEnabled()) {
            logger.warn(formatMessage(message));
        }
    }

    @Override
    public void warning(String message, Throwable e) {
        if (logger.isWarnEnabled()) {
            logger.warn(formatMessage(message), e);
        }
    }

    @Override
    public void info(String message) {
        if (logger.isInfoEnabled()) {
            logger.info(formatMessage(message));
        }
    }

    @Override
    public void info(String message, Throwable e) {
        if (logger.isInfoEnabled()) {
            logger.info(formatMessage(message), e);
        }
    }

    @Override
    public void debug(String message) {
        if (logger.isDebugEnabled()) {
            logger.debug(formatMessage(message));
        }
    }

    @Override
    public void debug(String message, Throwable e) {
        if (logger.isDebugEnabled()) {
            logger.debug(formatMessage(message), e);
        }
    }

    private String formatMessage(String message) {
        StringBuilder buffer = new StringBuilder();
        if (changeLogName != null) {
            buffer.append(changeLogName);
            buffer.append(": ");
        }
        if (changeSetName != null) {
            buffer.append(changeSetName.replace(changeLogName + "::", ""));
            buffer.append(": ");
        }
        buffer.append(message);
        return buffer.toString();
    }
}






-- 
Mikael Ståldal
Chief Software Architect
Appear
Phone: +46 8 545 91 572
Email: mikael.stal...@appearnetworks.com

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