Package br.com.caelum.stella.validation.ie

Source Code of br.com.caelum.stella.validation.ie.IEParanaValidator

package br.com.caelum.stella.validation.ie;

import java.util.regex.Pattern;

import br.com.caelum.stella.DigitoPara;
import br.com.caelum.stella.MessageProducer;
import br.com.caelum.stella.SimpleMessageProducer;

public class IEParanaValidator extends AbstractIEValidator {

    public static final Pattern FORMATED = Pattern.compile("\\d{3}\\.?\\d{5}\\-\\d{2}");

    public static final Pattern UNFORMATED = Pattern.compile("(\\d{10})");

 
    /**
   * Este considera, por padrão, que as cadeias estão formatadas e utiliza um
   * {@linkplain SimpleMessageProducer} para geração de mensagens.
   */
  public IEParanaValidator() {
    super(true);
  }

  /**
   * O validador utiliza um {@linkplain SimpleMessageProducer} para geração de
   * mensagens.
   *
   * @param isFormatted
   *            considerar cadeia formatada quando <code>true</code>
   */
  public IEParanaValidator(boolean isFormatted) {
    super(isFormatted);
  }

  public IEParanaValidator(MessageProducer messageProducer, boolean isFormatted) {
    super(messageProducer, isFormatted);
  }


  @Override
  protected Pattern getUnformattedPattern() {
    return UNFORMATED;
  }

  @Override
  protected Pattern getFormattedPattern() {
    return FORMATED;
  }

    protected boolean hasValidCheckDigits(String unformattedIE) {
    String iESemDigito = unformattedIE.substring(0, unformattedIE.length() - 2);
    String digitos = unformattedIE.substring(unformattedIE.length() - 2);

    String digitosCalculados = calculaDigitos(iESemDigito);

    return digitos.equals(digitosCalculados);
    }

  private String calculaDigitos(String iESemDigito) {
    DigitoPara digitoPara = new DigitoPara(iESemDigito);
    digitoPara.comMultiplicadoresDeAte(2, 7).complementarAoModulo().trocandoPorSeEncontrar("0", 10, 11);

    String digito1 = digitoPara.calcula();
    digitoPara.addDigito(digito1);
    String digito2 = digitoPara.calcula();

    return digito1 + digito2;
  }

}
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