/*
    * 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.logging.log4j.core.config.properties;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.Properties;
  
  import org.apache.logging.log4j.core.LoggerContext;
  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.Order;
  import org.apache.logging.log4j.core.config.plugins.Plugin;
  
  /**
   * Creates a PropertiesConfiguration from a properties file.
   *
   * @since 2.4
   */
  @Plugin(name = "PropertiesConfigurationFactory", category = ConfigurationFactory.CATEGORY)
  @Order(8)
  public class PropertiesConfigurationFactory extends ConfigurationFactory {
  
      @Override
      protected String[] getSupportedTypes() {
          return new String[] {".properties"};
      }
  
      @Override
      public PropertiesConfiguration getConfiguration(final LoggerContext loggerContext, final ConfigurationSource source) {
          final Properties properties = new Properties();
          try (final InputStream configStream = source.getInputStream()) {
              properties.load(configStream);
          } catch (final IOException ioe) {
              throw new ConfigurationException("Unable to load " + source.toString(), ioe);
          }
          return new PropertiesConfigurationBuilder()
                  .setConfigurationSource(source)
                  .setRootProperties(properties)
                  .setLoggerContext(loggerContext)
                  .build();
      }
  }