Esempio n. 1
0
  @XACMLFunction({"urn:oasis:names:tc:xacml:1.0:function:xpath-node-equal"})
  public static AttributeValue nodeEqual(EvaluationContext ctx, Object[] params)
      throws IndeterminateException {
    checkArguments(params, 2);
    AttributeValue exp1 = (AttributeValue) params[0];
    AttributeValue exp2 = (AttributeValue) params[1];
    checkArgumentType(exp1, Constants.TYPE_STRING);
    checkArgumentType(exp2, Constants.TYPE_STRING);
    String xpathExp1 = (String) exp1.getValue();
    String xpathExp2 = (String) exp2.getValue();

    try {
      NodeList nList1 = evaluateXPath(ctx, xpathExp1);
      NodeList nList2 = evaluateXPath(ctx, xpathExp2);
      for (int i = 0; i < nList1.getLength(); i++) {
        Node node1 = nList1.item(i);
        for (int j = 0; j < nList2.getLength(); j++) {
          Node node2 = nList2.item(j);
          if (node2.isEqualNode(node1)) {
            return TRUE;
          }
        }
      }
      return FALSE;
    } catch (IndeterminateException intEx) {
      throw intEx;
    } catch (Exception ex) {
      throw new IndeterminateException(
          "Error occurs while evaluating function nodeEqual : " + xpathExp1 + ", " + xpathExp2);
    }
  }
Esempio n. 2
0
  @XACMLFunction({"urn:oasis:names:tc:xacml:1.0:function:xpath-node-count"})
  public static AttributeValue nodeCount(EvaluationContext ctx, Object[] params)
      throws IndeterminateException {
    checkArguments(params, 1);
    AttributeValue exp = (AttributeValue) params[0];
    checkArgumentType(exp, Constants.TYPE_STRING);
    String xpathExp = (String) exp.getValue();

    try {
      NodeList nList = evaluateXPath(ctx, xpathExp);
      return AttributeValue.getInstance(
          Constants.TYPE_INTEGER, BigInteger.valueOf(nList.getLength()));
    } catch (IndeterminateException intEx) {
      throw intEx;
    } catch (Exception ex) {
      throw new IndeterminateException(
          "Error occurs while evaluating function nodeCount : " + xpathExp);
    }
  }