/*
    * 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.config;
  
  import java.io.IOException;
  import java.io.InputStream;
  
  import org.apache.logging.log4j.core.LoggerContext;
  import org.apache.logging.log4j.core.config.Configuration;
  import org.apache.logging.log4j.core.config.ConfigurationException;
  import org.apache.logging.log4j.core.config.ConfigurationFactory;
  import org.apache.logging.log4j.core.config.ConfigurationSource;
  import org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilder;
  import org.apache.logging.log4j.core.config.builder.impl.BuiltConfiguration;
  
  /**
   * Experimental ConfigurationFactory for Log4j 1.2 properties configuration files.
   */
  // TODO
  // @Plugin(name = "Log4j1ConfigurationFactory", category = ConfigurationFactory.CATEGORY)
  //
  // Best Value?
  // @Order(50)
  public class Log4j1ConfigurationFactory extends ConfigurationFactory {
  
      private static final String[] SUFFIXES = {".properties"};
  
      @Override
      public Configuration getConfiguration(final LoggerContext loggerContext, final ConfigurationSource source) {
          final ConfigurationBuilder<BuiltConfiguration> builder;
          try (final InputStream configStream = source.getInputStream()) {
              builder = new Log4j1ConfigurationParser().buildConfigurationBuilder(configStream);
          } catch (final IOException e) {
              throw new ConfigurationException("Unable to load " + source, e);
          }
          return builder.build();
      }
  
      @Override
      protected String[] getSupportedTypes() {
          return SUFFIXES;
      }
  
  }