package ddth.dasp.framework.logging.log4j;

import org.apache.log4j.Appender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;

import ddth.dasp.common.logging.ILogWriter;

/**
 * This implementation of {@link ILogWriter} utilizes log4j to write log to file
 * system.
 * 
 * @author NBThanh <btnguyen2k@gmail.com>
 */
public class Log4jLogWriter implements ILogWriter {

    private Logger logger;

    public Log4jLogWriter() {
    }

    public Log4jLogWriter(Logger logger, Appender appender) {
        setLogger(logger);
        setAppender(appender);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void writeLog(String logMsg) {
        logger.log(Level.ALL, logMsg);
    }

    /**
     * Sets the logger's appender.
     * 
     * @param appender
     */
    public void setAppender(Appender appender) {
        logger.addAppender(appender);
    }

    /**
     * Getter for {@link #logger}.
     * 
     * @return
     */
    public Logger getLogger() {
        return logger;
    }

    /**
     * Setter for {@link #logger}.
     * 
     * @param logger
     */
    public void setLogger(Logger logger) {
        this.logger = logger;
        this.logger.setLevel(Level.ALL);
    }
}