package com.github.mygreen.supercsv.cellprocessor.constraint;
   
   import java.util.ArrayList;
   import java.util.Arrays;
   import java.util.List;
   import java.util.Optional;
   
   import org.supercsv.cellprocessor.ift.CellProcessor;
   
  import com.github.mygreen.supercsv.annotation.constraint.CsvWordRequire;
  import com.github.mygreen.supercsv.builder.Configuration;
  import com.github.mygreen.supercsv.builder.FieldAccessor;
  import com.github.mygreen.supercsv.cellprocessor.ConstraintProcessorFactory;
  import com.github.mygreen.supercsv.cellprocessor.format.TextFormatter;
  import com.github.mygreen.supercsv.exception.SuperCsvInvalidAnnotationException;
  import com.github.mygreen.supercsv.localization.MessageBuilder;
  
  /**
   * アノテーション{@link CsvWordRequire}をハンドリングして、CellProcessorの{@link WordRequire}を作成する。
   * 
   * @since 2.0
   * @author T.TSUCHIE
   *
   */
  public class WordRequireFactory implements ConstraintProcessorFactory<CsvWordRequire> {
      
      @Override
      public Optional<CellProcessor> create(final CsvWordRequire anno, final Optional<CellProcessor> next,
              final FieldAccessor field, final TextFormatter<?> formatter, final Configuration config) {
          
          final List<String> words = new ArrayList<>();
          if(anno.value().length > 0) {
              words.addAll(Arrays.asList(anno.value()));
          }
              
          if(anno.provider().length > 0) {
              final RequiredWordProvider./com/github/mygreen/supercsv/cellprocessor/constraint/RequiredWordProvider.html#RequiredWordProvider">RequiredWordProvider provider = (RequiredWordProvider) config.getBeanFactory().create(anno.provider()[0]);
              words.addAll(provider.getRequiredWords(field));
              
          }
          
          if(anno.value().length == 0 && anno.provider().length == 0) {
              throw new SuperCsvInvalidAnnotationException(anno, MessageBuilder.create("anno.attr.required")
                      .var("property", field.getNameWithClass())
                      .varWithAnno("anno", anno.annotationType())
                      .var("attrName", "value or provider")
                      .format());
          }
          
          final WordRequireraint/WordRequire.html#WordRequire">WordRequire processor = next.map(n -> new WordRequire(words, n))
                  .orElseGet(() -> new WordRequire(words));
          processor.setValidationMessage(anno.message());
          
          return Optional.of(processor);
      }
      
  }