package com.github.mygreen.supercsv.cellprocessor.format;
   
   import java.text.SimpleDateFormat;
   import java.util.Locale;
   import java.util.TimeZone;
   
   /**
    * {@link SimpleDateFormat}を組み立てるクラス。
    * 
   * @since 1.2
   * @author T.TSUCHIE
   *
   */
  public class SimpleDateFormatBuilder {
      
      private String pattern;
      
      private Locale locale;
      
      private TimeZone timeZone;
      
      private boolean lenient;
      
      /**
       * create instance {@link SimpleDateFormatBuilder}.
       * @param pattern format pattern.
       * @return
       */
      public static SimpleDateFormatBuilder create(final String pattern) {
          return new SimpleDateFormatBuilder(pattern);
      }
      
      private SimpleDateFormatBuilder(final String pattern) {
          this.pattern = pattern;
          this.locale = Locale.getDefault();
          this.timeZone = TimeZone.getDefault();
          this.lenient = false;
      }
      
      /**
       * create instance {@link SimpleDateFormat}
       * @return
       */
      public SimpleDateFormat build() {
          
          final SimpleDateFormat formatter;
          if(locale == null) {
              formatter = new SimpleDateFormat(pattern);
          } else {
              formatter = new SimpleDateFormat(pattern, locale);
          }
          
          if(timeZone != null) {
              formatter.setTimeZone(timeZone);
          }
          formatter.setLenient(lenient);
          
          return formatter;
          
      }
      
      public SimpleDateFormatBuilder locale(final Locale locale) {
          this.locale = locale;
          return this;
      }
      
      public SimpleDateFormatBuilder timeZone(final TimeZone timeZone) {
          this.timeZone = timeZone;
          return this;
      }
      
      public SimpleDateFormatBuilder lenient(final boolean lenient) {
          this.lenient = lenient;
          return this;
      }
      
  }