/*   Copyright 2017, 2018 The Apache Software Foundation
 *
 *   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 org.apache.xmlbeans.impl.common;

/**
 * A logger class that strives to make it as easy as possible for
 * developers to write log calls, while simultaneously making those
 * calls as cheap as possible by performing lazy evaluation of the log
 * message.<p>
 */
public class NullLogger extends XBLogger {
    @Override
    public void initialize(final String cat) {
       // do nothing
    }

    /**
     * Log a message
     *
     * @param level One of DEBUG, INFO, WARN, ERROR, FATAL
     * @param obj1 The object to log.
     */

    @Override
    protected void _log(final int level, final Object obj1) {
        // do nothing
    }

    /**
     * Log a message
     *
     * @param level One of DEBUG, INFO, WARN, ERROR, FATAL
     * @param obj1 The object to log.  This is converted to a string.
     * @param exception An exception to be logged
     */
    @Override
    protected void _log(int level, Object obj1, final Throwable exception) {
        // do nothing
    }

    /**
     * Log a message. Lazily appends Object parameters together.
     * If the last parameter is a {@link Throwable} it is logged specially.
     *
     * @param level One of DEBUG, INFO, WARN, ERROR, FATAL
     * @param objs the objects to place in the message
     */
    @Override
    public void log(int level, Object... objs) {
        // do nothing
    }

    
    /**
     * Check if a logger is enabled to log at the specified level
     *
     * @param level One of DEBUG, INFO, WARN, ERROR, FATAL
     */
    @Override
    public boolean check(final int level) {
       return false;
    }
}