/*
    * Copyright 2012-2021 CodeLibs Project and the Others.
    *
    * 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.codelibs.fess.crawler.transformer;
  
  import javax.annotation.PostConstruct;
  
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  import org.codelibs.fess.crawler.entity.ResponseData;
  import org.codelibs.fess.crawler.extractor.Extractor;
  import org.codelibs.fess.crawler.extractor.ExtractorFactory;
  import org.codelibs.fess.exception.FessSystemException;
  import org.codelibs.fess.mylasta.direction.FessConfig;
  import org.codelibs.fess.util.ComponentUtil;
  
  public class FessStandardTransformer extends AbstractFessFileTransformer {
      private static final Logger logger = LogManager.getLogger(FessStandardTransformer.class);
  
      @PostConstruct
      public void init() {
          if (logger.isDebugEnabled()) {
              logger.debug("Initialize {}", this.getClass().getSimpleName());
          }
          fessConfig = ComponentUtil.getFessConfig();
      }
  
      @Override
      public FessConfig getFessConfig() {
          return fessConfig;
      }
  
      @Override
      public Logger getLogger() {
          return logger;
      }
  
      @Override
      protected Extractor getExtractor(final ResponseData responseData) {
          final ExtractorFactory extractorFactory = ComponentUtil.getExtractorFactory();
          if (extractorFactory == null) {
              throw new FessSystemException("Could not find extractorFactory.");
          }
          Extractor extractor = extractorFactory.getExtractor(responseData.getMimeType());
          if (extractor == null) {
              extractor = ComponentUtil.getComponent("tikaExtractor");
              if (extractor == null) {
                  throw new FessSystemException("Could not find tikaExtractor.");
              }
          }
  
          if (logger.isDebugEnabled()) {
              logger.debug("url={}, extractor={}", responseData.getUrl(), extractor);
          }
          return extractor;
      }
  }