/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to you 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.log4j;

import java.net.URI;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.core.LoggerContext;
import org.apache.logging.log4j.core.config.AbstractConfiguration;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.ConfigurationFactory;
import org.apache.logging.log4j.core.config.ConfigurationSource;
import org.apache.logging.log4j.core.config.LoggerConfig;

/**
 *
 */
public class BasicConfigurationFactory extends ConfigurationFactory {

    @Override
    public String[] getSupportedTypes() {
        return new String[] {"*"};
    }

    @Override
    public Configuration getConfiguration(final LoggerContext loggerContext, final ConfigurationSource source) {
        return new BasicConfiguration(loggerContext);
    }

    @Override
    public Configuration getConfiguration(
            final LoggerContext loggerContext, final String name, final URI configLocation) {
        return new BasicConfiguration(loggerContext);
    }

    public static class BasicConfiguration extends AbstractConfiguration {

        private static final long serialVersionUID = -2716784321395089563L;

        private static final String DEFAULT_LEVEL = "org.apache.logging.log4j.level";

        public BasicConfiguration(final LoggerContext loggerContext) {
            super(loggerContext, ConfigurationSource.NULL_SOURCE);

            final LoggerConfig root = getRootLogger();
            setName("BasicConfiguration");
            final String levelName = System.getProperty(DEFAULT_LEVEL);
            final Level level =
                    (levelName != null && Level.getLevel(levelName) != null) ? Level.getLevel(levelName) : Level.DEBUG;
            root.setLevel(level);
        }

        @Override
        protected void doConfigure() {}
    }
}
