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package net.trajano.openidconnect.jaspic.internal;

import java.text.MessageFormat;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 * Preconfigured logger.
 *
 * @author Archimedes
 */
public class Log {

    private static final Logger LOG;

    /**
     * Messages resource path.
     */
    private static final String MESSAGES = "META-INF/JaspicMessages";

    private static final ResourceBundle R = ResourceBundle.getBundle(MESSAGES);

    static {
        LOG = Logger.getLogger("net.trajano.oidc.jaspic");
    }

    public static void fine(final String key,
            final Object... params) {

        LOG.log(Level.FINE, r(key, params));
    }

    public static Logger getInstance() {

        return LOG;
    }

    public static boolean isFinestLoggable() {

        return LOG.isLoggable(Level.FINEST);
    }

    public static String r(final String key,
            final Object... params) {

        final String format;
        if (R.containsKey(key)) {
            format = R.getString(key);
        } else {
            format = key;
        }
        if (params.length == 0) {
            return format;
        } else {
            return MessageFormat.format(format, params);
        }
    }

    public static void severe(final String key,
            final Object... params) {

        LOG.log(Level.SEVERE, r(key, params));
    }

}