apparat.embedding.maven.MavenLogAdapter.java Source code

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Here is the source code for apparat.embedding.maven.MavenLogAdapter.java

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/*
 * This file is part of Apparat.
 *
 * Copyright (C) 2010 Joa Ebert
 * http://www.joa-ebert.com/
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
package apparat.embedding.maven;

import apparat.log.*;

/**
 * @author Joa Ebert
 */
public final class MavenLogAdapter implements LogOutput {
    /**
     * Maps the level of a given Maven log to a corresponding
     * Apparat log level.
     *
     * @param log The current Maven log.
     * @return The corresponding Apparat log level.
     */
    public static LogLevel mapLevelOf(final org.apache.maven.plugin.logging.Log log) {
        //
        // We return an instance of a Scala case object here.
        //

        if (log.isDebugEnabled()) {
            return Debug$.MODULE$;
        } else if (log.isInfoEnabled()) {
            return Info$.MODULE$;
        } else if (log.isWarnEnabled()) {
            return Warning$.MODULE$;
        } else if (log.isErrorEnabled()) {
            return Error$.MODULE$;
        } else {
            return Off$.MODULE$;
        }
    }

    private final org.apache.maven.plugin.logging.Log mavenLog;

    public MavenLogAdapter(final org.apache.maven.plugin.logging.Log log) {
        mavenLog = log;
    }

    /**
     * {@inheritDoc}
     */
    public void log(final LogLevel level, final String message) {
        //
        // Do not be afraid of IDE errors. This code is the correct way to
        // call a method on a Scala case object.
        //

        if (Debug$.MODULE$.matches(level)) {
            mavenLog.debug(message);
        } else if (Info$.MODULE$.matches(level)) {
            mavenLog.info(message);
        } else if (Warning$.MODULE$.matches(level)) {
            mavenLog.warn(message);
        } else if (Error$.MODULE$.matches(level)) {
            mavenLog.error(message);
        } else {
            mavenLog.error("Unexpected log level: " + level);
        }
    }

    public LogLevel getLevel() {
        return mapLevelOf(mavenLog);
    }
}