}
    }

    @Override
    public void info(CharSequence content) {
        if (isInfoEnabled()) {
            logger.info(toString(content));
        }
    }

    @Override
    public void info(CharSequence content, Throwable error) {
        if (isInfoEnabled()) {
            logger.info(toString(content), error);
        }
    }

    @Override

    @Override
    public void debug(Marker marker, String format, Object... arguments) {}

    @Override
    public void debug(Marker marker, String msg, Throwable t) {}

    @Override
    public boolean isInfoEnabled() {
        return false;
    }

    @Override
    public void info(String msg) {}

    @Override
    public void info(String format, Object arg) {}

    @Override

        // TODO Not sure how best to set these for this implementation...
        return false;
    }

    /**
     * @see org.apache.maven.plugin.logging.Log#isInfoEnabled()
     */
    @Override
    public boolean isInfoEnabled() {
        return true;
    }

    /**
     * @see org.apache.maven.plugin.logging.Log#isWarnEnabled()
     */
    @Override
    public boolean isWarnEnabled() {

     */
    public boolean isInfoEnabled() {
        return log.isInfoEnabled();
    }

    /**
     * Outputs INFO information.
     *
     * @param message
     *            Message
     * @param throwable
     *            Exception
     */
    public void info(final Object message, final Throwable throwable) {
        if (isInfoEnabled()) {

    void error(String message);

    void error(String message, Throwable t);

    boolean isWarnEnabled();

    void warn(String message);

    void warn(String message, Throwable t);

    boolean isInfoEnabled();

    void info(String message);

    void info(String message, Throwable t);

    boolean isDebugEnabled();

    void debug(String message);

    void debug(String message, Throwable t);

        logger.error("", error);
    }

    @Override
    public boolean isDebugEnabled() {
        return logger.isDebugEnabled();
    }

    @Override
    public boolean isInfoEnabled() {
        return logger.isInfoEnabled();
    }

    @Override
    public boolean isWarnEnabled() {
        return logger.isWarnEnabled();
    }

    @Override
    public boolean isErrorEnabled() {

    }

    @Override
    public void warn(final String message, final Throwable t) {
        logger.warn(message, t);
    }

    @Override
    public boolean isInfoEnabled() {
        return logger.isInfoEnabled();
    }

    @Override
    public void info(final String message) {
        logger.info(message);
    }

    @Override
    public void info(final String message, final Throwable t) {

    }

    @Override
    public void warn(final String message, final Throwable t) {
        logger.logp(Level.WARNING, sourceClass, null, message, t);
    }

    @Override
    public boolean isInfoEnabled() {
        return logger.isLoggable(Level.INFO);
    }

    @Override
    public void info(final String message) {
        logger.logp(Level.INFO, sourceClass, null, message);
    }

    @Override

    public void cleanup(final String sessionId) {
        if (logger.isInfoEnabled()) {
            logger.info("Starting crawler cleanup: sessionId={}", sessionId);
        }
        try {
            // TODO transaction?
            urlQueueService.delete(sessionId);
            dataService.delete(sessionId);
            urlFilter.clear();
            if (logger.isInfoEnabled()) {

        } else {
            fileConfigList = Collections.emptyList();
        }

        if (webConfigList.isEmpty() && fileConfigList.isEmpty()) {
            // nothing
            if (logger.isInfoEnabled()) {
                logger.info("No crawling target urls.");
            }
            return;
        }

        doCrawl(sessionId, webConfigList, fileConfigList);
    }

    /**