本文整理了Java中eu.europa.esig.dss.utils.Utils.isStringEmpty()方法的一些代码示例，展示了Utils.isStringEmpty()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Utils.isStringEmpty()方法的具体详情如下：
包路径：eu.europa.esig.dss.utils.Utils
类名称：Utils
方法名：isStringEmpty

Utils.isStringEmpty介绍

暂无

代码示例

代码示例来源：origin: esig/dss

protected boolean processValueCheck(String value, String expected) {
  if (Utils.isStringEmpty(value)) {
    return false;
  }
  if (ALL_VALUE.equals(expected)) {
    return true;
  } else {
    return Utils.areStringsEqual(expected, value);
  }
}

代码示例来源：origin: esig/dss

/**
 * This method returns signatures (not countersignatures)
 * 
 * @return a set of SignatureWrapper
 */
public Set<SignatureWrapper> getAllSignatures() {
  Set<SignatureWrapper> signatures = new HashSet<SignatureWrapper>();
  List<SignatureWrapper> mixedSignatures = getSignatures();
  for (SignatureWrapper signatureWrapper : mixedSignatures) {
    if (Utils.isStringEmpty(signatureWrapper.getParentId())) {
      signatures.add(signatureWrapper);
    }
  }
  return signatures;
}

代码示例来源：origin: esig/dss

@Override
protected boolean process() {
  PseudoStrategy pseudoStrategy = new JoinedPseudoStrategy();
  pseudo = pseudoStrategy.getPseudo(certificate);
  return Utils.isStringEmpty(pseudo);
}

代码示例来源：origin: esig/dss

private Date getExpirationDate(String algoToFind, List<Algo> algos, String format) {
  SimpleDateFormat dateFormat = new SimpleDateFormat(Utils.isStringEmpty(format) ? DATE_FORMAT : format);
  Date result = null;
  for (Algo algo : algos) {
    if (Utils.areStringsEqual(algoToFind, algo.getValue()) && Utils.isStringNotEmpty(algo.getDate())) {
      try {
        result = dateFormat.parse(algo.getDate());
      } catch (Exception e) {
        LOG.warn("Unable to parse date with pattern '{}' : {}", dateFormat.toPattern(), e.getMessage());
      }
    }
  }
  return result;
}

代码示例来源：origin: esig/dss

String attributeName = (tokenizer.hasMoreTokens()) ? tokenizer.nextToken() : null;
if (Utils.isStringEmpty(attributeName)) {

代码示例来源：origin: esig/dss

@Test
public void isStringEmpty() {
  assertTrue(Utils.isStringEmpty(""));
  assertFalse(Utils.isStringEmpty("  "));
  assertTrue(Utils.isStringEmpty(null));
  assertFalse(Utils.isStringEmpty("bla"));
}

代码示例来源：origin: esig/dss

@Override
protected boolean process() {
  String policyId = signature.getPolicyId();
  if (multiValues.getId().contains(SignaturePolicy.NO_POLICY) && Utils.isStringEmpty(policyId)) {
    return true;
  } else if (multiValues.getId().contains(SignaturePolicy.ANY_POLICY) && Utils.isStringNotEmpty(policyId)) {
    return true;
  } else if (multiValues.getId().contains(SignaturePolicy.IMPLICIT_POLICY) && Utils.areStringsEqual(SignaturePolicy.IMPLICIT_POLICY, policyId)) {
    return true;
  }
  // oids
  return processValueCheck(policyId);
}

代码示例来源：origin: esig/dss

@Override
public boolean check(CertificateToken certificateToken) {
  X500Principal subjectX500Principal = certificateToken.getSubjectX500Principal();
  if (Utils.isCollectionNotEmpty(subjectAttributeOids)) {
    for (String oid : subjectAttributeOids) {
      String attribute = DSSASN1Utils.extractAttributeFromX500Principal(new ASN1ObjectIdentifier(oid), subjectX500Principal);
      if (Utils.isStringEmpty(attribute)) {
        return false;
      }
    }
  }
  return true;
}