Java DatatypeIdValue.DT_PROPERTY屬性代碼示例

@Override
public Value getRdfValue(EntityIdValue value,
		PropertyIdValue propertyIdValue, boolean simple) {
	String datatype = this.propertyRegister
			.setPropertyTypeFromEntityIdValue(propertyIdValue, value);

	switch (datatype) {
	case DatatypeIdValue.DT_ITEM:
		if (simple) {
			this.rdfConversionBuffer.addObjectProperty(propertyIdValue);
			return this.rdfWriter.getUri(value.getIri());
		} else {
			return null; // or blank node
		}
	case DatatypeIdValue.DT_PROPERTY:
		if (simple) {
			this.rdfConversionBuffer.addObjectProperty(propertyIdValue);
			return this.rdfWriter.getUri(value.getIri());
		} else {
			return null; // or blank node
		}
	default:
		logIncompatibleValueError(propertyIdValue, datatype, "entity");
		return null;
	}
}
 

/**
 * Returns an English label for a given datatype.
 *
 * @param datatype
 *            the datatype to label
 * @return the label
 */
private String getDatatypeLabel(DatatypeIdValue datatype) {
	if (datatype.getIri() == null) { // TODO should be redundant once the
										// JSON parsing works
		return "Unknown";
	}

	switch (datatype.getIri()) {
	case DatatypeIdValue.DT_COMMONS_MEDIA:
		return "Commons media";
	case DatatypeIdValue.DT_GLOBE_COORDINATES:
		return "Globe coordinates";
	case DatatypeIdValue.DT_ITEM:
		return "Item";
	case DatatypeIdValue.DT_QUANTITY:
		return "Quantity";
	case DatatypeIdValue.DT_STRING:
		return "String";
	case DatatypeIdValue.DT_TIME:
		return "Time";
	case DatatypeIdValue.DT_URL:
		return "URL";
	case DatatypeIdValue.DT_PROPERTY:
		return "Property";
	case DatatypeIdValue.DT_EXTERNAL_ID:
		return "External identifier";
	case DatatypeIdValue.DT_MATH:
		return "Math";
	case DatatypeIdValue.DT_MONOLINGUAL_TEXT:
		return "Monolingual Text";
	default:
		throw new RuntimeException("Unknown datatype " + datatype.getIri());
	}
}
 

/**
 * Returns the IRI of the primitive Type of an Property for
 * {@link EntityIdValue} objects.
 *
 * @param propertyIdValue
 * @param value
 */
public String setPropertyTypeFromEntityIdValue(
		PropertyIdValue propertyIdValue, EntityIdValue value) {
	switch (value.getId().charAt(0)) {
	case 'Q':
		return DatatypeIdValue.DT_ITEM;
	case 'P':
		return DatatypeIdValue.DT_PROPERTY;
	default:
		logger.warn("Could not determine Type of "
				+ propertyIdValue.getId()
				+ ". It is not a valid EntityDocument Id");
		return null;
	}
}
 

/**
 * Returns the class of datatype URI that best characterizes the range of
 * the given property based on its datatype.
 *
 * @param propertyIdValue
 *            the property for which to get a range
 * @return the range URI or null if the datatype could not be identified.
 */
String getRangeUri(PropertyIdValue propertyIdValue) {
	String datatype = this.propertyRegister
			.getPropertyType(propertyIdValue);

	if (datatype == null)
		return null;

	switch (datatype) {
	case DatatypeIdValue.DT_STRING:
	case DatatypeIdValue.DT_EXTERNAL_ID:
	case DatatypeIdValue.DT_MATH:
		this.rdfConversionBuffer.addDatatypeProperty(propertyIdValue);
		return Vocabulary.XSD_STRING;
	case DatatypeIdValue.DT_COMMONS_MEDIA:
	case DatatypeIdValue.DT_GLOBE_COORDINATES:
	case DatatypeIdValue.DT_ITEM:
	case DatatypeIdValue.DT_PROPERTY:
	case DatatypeIdValue.DT_QUANTITY:
	case DatatypeIdValue.DT_TIME:
	case DatatypeIdValue.DT_URL:
		this.rdfConversionBuffer.addObjectProperty(propertyIdValue);
		return Vocabulary.OWL_THING;
	default:
		return null;
	}
}