private Object encodeLiteral(final Literal literal) {
   final URI datatype = literal.getDatatype();
   if (datatype == null || datatype.equals(XMLSchema.STRING)) {
     final String language = literal.getLanguage();
     if (language == null) {
       return literal.getLabel();
     } else {
       return SerializerAvro.newGenericRecord(Schemas.STRING_LANG, literal.getLabel(), language);
     }
   } else if (datatype.equals(XMLSchema.BOOLEAN)) {
     return literal.booleanValue();
   } else if (datatype.equals(XMLSchema.LONG)) {
     return literal.longValue();
   } else if (datatype.equals(XMLSchema.INT)) {
     return literal.intValue();
   } else if (datatype.equals(XMLSchema.DOUBLE)) {
     return literal.doubleValue();
   } else if (datatype.equals(XMLSchema.FLOAT)) {
     return literal.floatValue();
   } else if (datatype.equals(XMLSchema.SHORT)) {
     return SerializerAvro.newGenericRecord(Schemas.SHORT, literal.intValue());
   } else if (datatype.equals(XMLSchema.BYTE)) {
     return SerializerAvro.newGenericRecord(Schemas.BYTE, literal.intValue());
   } else if (datatype.equals(XMLSchema.INTEGER)) {
     return SerializerAvro.newGenericRecord(Schemas.BIGINTEGER, literal.stringValue());
   } else if (datatype.equals(XMLSchema.DECIMAL)) {
     return SerializerAvro.newGenericRecord(Schemas.BIGDECIMAL, literal.stringValue());
   } else if (datatype.equals(XMLSchema.DATETIME)) {
     final XMLGregorianCalendar calendar = literal.calendarValue();
     return SerializerAvro.newGenericRecord(
         Schemas.CALENDAR,
         calendar.getTimezone(),
         calendar.toGregorianCalendar().getTimeInMillis());
   }
   throw new IllegalArgumentException("Unsupported literal: " + literal);
 }
Example #2
0
  /** Copied from org.openrdf.query.QueryResultUtil */
  private static boolean bindingSetsMatch(final BindingSet bs1, final BindingSet bs2) {

    if (bs1.size() != bs2.size()) {
      return false;
    }

    for (Binding binding1 : bs1) {
      Value value1 = binding1.getValue();
      Value value2 = bs2.getValue(binding1.getName());

      if ((value1 instanceof BNode) && (value2 instanceof BNode)) {
        // BNode mappedBNode = bNodeMapping.get(value1);
        //
        // if (mappedBNode != null) {
        // // bNode 'value1' was already mapped to some other bNode
        // if (!value2.equals(mappedBNode)) {
        // // 'value1' and 'value2' do not match
        // return false;
        // }
        // } else {
        // // 'value1' was not yet mapped, we need to check if 'value2'
        // // is a
        // // possible mapping candidate
        // if (bNodeMapping.containsValue(value2)) {
        // // 'value2' is already mapped to some other value.
        // return false;
        // }
        // }

        return value1.equals(value2);
      } else {
        // values are not (both) bNodes
        if ((value1 instanceof Literal) && (value2 instanceof Literal)) {
          // do literal value-based comparison for supported datatypes
          Literal leftLit = (Literal) value1;
          Literal rightLit = (Literal) value2;

          URI dt1 = leftLit.getDatatype();
          URI dt2 = rightLit.getDatatype();

          if ((dt1 != null)
              && (dt2 != null)
              && dt1.equals(dt2)
              && XMLDatatypeUtil.isValidValue(leftLit.getLabel(), dt1)
              && XMLDatatypeUtil.isValidValue(rightLit.getLabel(), dt2)) {
            Integer compareResult = null;
            if (dt1.equals(XMLSchema.DOUBLE)) {
              compareResult = Double.compare(leftLit.doubleValue(), rightLit.doubleValue());
            } else if (dt1.equals(XMLSchema.FLOAT)) {
              compareResult = Float.compare(leftLit.floatValue(), rightLit.floatValue());
            } else if (dt1.equals(XMLSchema.DECIMAL)) {
              compareResult = leftLit.decimalValue().compareTo(rightLit.decimalValue());
            } else if (XMLDatatypeUtil.isIntegerDatatype(dt1)) {
              compareResult = leftLit.integerValue().compareTo(rightLit.integerValue());
            } else if (dt1.equals(XMLSchema.BOOLEAN)) {
              Boolean leftBool = Boolean.valueOf(leftLit.booleanValue());
              Boolean rightBool = Boolean.valueOf(rightLit.booleanValue());
              compareResult = leftBool.compareTo(rightBool);
            } else if (XMLDatatypeUtil.isCalendarDatatype(dt1)) {
              XMLGregorianCalendar left = leftLit.calendarValue();
              XMLGregorianCalendar right = rightLit.calendarValue();

              compareResult = left.compare(right);
            }

            if (compareResult != null) {
              if (compareResult.intValue() != 0) {
                return false;
              }
            } else if (!value1.equals(value2)) {
              return false;
            }
          } else if (!value1.equals(value2)) {
            return false;
          }
        } else if (!value1.equals(value2)) {
          return false;
        }
      }
    }

    return true;
  }