// Create URIREF from URI
private String createURIref(String uri) {
StringBuffer result = new StringBuffer();
result.append("<");
result.append(uri);
result.append(">");
return result.toString();
}
// Create Literal
private String createLiteral(String value) {
StringBuffer result = new StringBuffer();
result.append("\"");
result.append(value);
result.append("\"");
return result.toString();
}
// Create language tagged literal
private String createLanguageLiteral(String text, String languageCode) {
StringBuffer result = new StringBuffer();
result.append("\"");
result.append(text);
result.append("\"@");
result.append(languageCode);
return result.toString();
}
/*
* Converts the ProductFeature Object into an TriG String
* representation.
*/
private String convertProductFeature(ProductFeature pf) {
StringBuffer result = new StringBuffer();
// First the uriref for the subject
result.append(ProductFeature.getPrefixed(pf.getNr()));
result.append("\n");
// rdf:type
result.append(createTriplePO(RDF.prefixed("type"), BSBM.prefixed("ProductFeature")));
// rdfs:label
result.append(createTriplePO(RDFS.prefixed("label"), createLiteral(pf.getLabel())));
// rdfs:comment
result.append(createTriplePO(RDFS.prefixed("comment"), createLiteral(pf.getComment())));
// dc:publisher
result.append(
createTriplePO(
DC.prefixed("publisher"),
createURIref(BSBM.getStandardizationInstitution(pf.getPublisher()))));
// dc:date
GregorianCalendar date = new GregorianCalendar();
date.setTimeInMillis(pf.getPublishDate());
String dateString = DateGenerator.formatDate(date);
result.append(
createTriplePOEnd(
DC.prefixed("date"), createDataTypeLiteral(dateString, XSD.prefixed("date"))));
return result.toString();
}
/*
* Create Namespace prefixes
* @see benchmark.serializer.Serializer#gatherData(benchmark.serializer.ObjectBundle)
*/
private String getNamespaces() {
StringBuffer result = new StringBuffer();
result.append(createPrefixLine(RDF.PREFIX, RDF.NS));
result.append(createPrefixLine(RDFS.PREFIX, RDFS.NS));
result.append(createPrefixLine(FOAF.PREFIX, FOAF.NS));
result.append(createPrefixLine(DC.PREFIX, DC.NS));
result.append(createPrefixLine(XSD.PREFIX, XSD.NS));
result.append(createPrefixLine(REV.PREFIX, REV.NS));
result.append(createPrefixLine(BSBM.PREFIX, BSBM.NS));
result.append(createPrefixLine(BSBM.INST_PREFIX, BSBM.INST_NS));
return result.toString();
}
private String createPrefixLine(String prefix, String namespace) {
StringBuffer result = new StringBuffer();
result.append("@prefix ");
result.append(prefix);
result.append(" ");
result.append(createURIref(namespace));
result.append(" .\n");
return result.toString();
}
// Create typed literal
private String createDataTypeLiteral(String value, String datatypeURI) {
StringBuffer result = new StringBuffer();
result.append("\"");
result.append(value);
result.append("\"^^");
result.append(datatypeURI);
return result.toString();
}
/*
* Converts the Person Object into an TriG String
* representation.
*/
private String convertPerson(Person person, ObjectBundle bundle) {
StringBuffer result = new StringBuffer();
// First the uriref for the subject
result.append(Person.getPrefixed(person.getNr(), bundle.getPublisherNum()));
result.append("\n");
// rdf:type
result.append(createTriplePO(RDF.prefixed("type"), FOAF.prefixed("Person")));
// foaf:name
result.append(createTriplePO(FOAF.prefixed("name"), createLiteral(person.getName())));
// foaf:mbox_sha1sum
result.append(
createTriplePO(FOAF.prefixed("mbox_sha1sum"), createLiteral(person.getMbox_sha1sum())));
// bsbm:country
result.append(
createTriplePO(
BSBM.prefixed("country"), createURIref(ISO3166.find(person.getCountryCode()))));
// dc:publisher
result.append(
createTriplePO(DC.prefixed("publisher"), RatingSite.getPrefixed(person.getPublisher())));
// dc:date
GregorianCalendar date = new GregorianCalendar();
date.setTimeInMillis(person.getPublishDate());
String dateString = DateGenerator.formatDate(date);
result.append(
createTriplePOEnd(
DC.prefixed("date"), createDataTypeLiteral(dateString, XSD.prefixed("date"))));
return result.toString();
}
/*
* Create an abbreviated triple consisting of predicate and object; end with "."
*/
private String createTriplePOEnd(String predicate, String object) {
StringBuffer result = new StringBuffer();
result.append(" ");
result.append(predicate);
result.append(" ");
result.append(object);
result.append(" .\n");
nrTriples++;
return result.toString();
}
/*
* Converts the Review Object into an TriG String
* representation.
*/
private String convertReview(Review review, ObjectBundle bundle) {
StringBuffer result = new StringBuffer();
// First the uriref for the subject
result.append(Review.getPrefixed(review.getNr(), bundle.getPublisherNum()));
result.append("\n");
// rdf:type
result.append(createTriplePO(RDF.prefixed("type"), BSBM.prefixed("Review")));
// bsbm:reviewFor
result.append(
createTriplePO(
BSBM.prefixed("reviewFor"),
Product.getPrefixed(review.getProduct(), review.getProducerOfProduct())));
// rev:reviewer
result.append(
createTriplePO(
REV.prefixed("reviewer"),
Person.getPrefixed(review.getPerson(), review.getPublisher())));
// dc:title
result.append(createTriplePO(DC.prefixed("title"), createLiteral(review.getTitle())));
// rev:text
result.append(
createTriplePO(
REV.prefixed("text"),
createLanguageLiteral(review.getText(), ISO3166.language[review.getLanguage()])));
// bsbm:ratingX
Integer[] ratings = review.getRatings();
for (int i = 0, j = 1; i < ratings.length; i++, j++) {
Integer value = ratings[i];
if (value != null)
result.append(
createTriplePO(
BSBM.getRatingPrefix(j),
// createDataTypeLiteral(value.toString(),
// XSD.prefixed("integer"))
value.toString()));
}
// bsbm:reviewDate
GregorianCalendar reviewDate = new GregorianCalendar();
reviewDate.setTimeInMillis(review.getReviewDate());
String reviewDateString = DateGenerator.formatDateTime(reviewDate);
result.append(
createTriplePO(
BSBM.prefixed("reviewDate"),
createDataTypeLiteral(reviewDateString, XSD.prefixed("dateTime"))));
// dc:publisher
result.append(
createTriplePO(DC.prefixed("publisher"), RatingSite.getPrefixed(review.getPublisher())));
// dc:date
GregorianCalendar date = new GregorianCalendar();
date.setTimeInMillis(review.getPublishDate());
String dateString = DateGenerator.formatDate(date);
result.append(
createTriplePOEnd(
DC.prefixed("date"), createDataTypeLiteral(dateString, XSD.prefixed("date"))));
return result.toString();
}
/*
* Converts the Vendor Object into an TriG String
* representation.
*/
private String convertVendor(Vendor vendor) {
StringBuffer result = new StringBuffer();
// First the uriref for the subject
result.append(Vendor.getPrefixed(vendor.getNr()));
result.append("\n");
// rdf:type
result.append(createTriplePO(RDF.prefixed("type"), BSBM.prefixed("Vendor")));
// rdfs:label
result.append(createTriplePO(RDFS.prefixed("label"), createLiteral(vendor.getLabel())));
// rdfs:comment
result.append(createTriplePO(RDFS.prefixed("comment"), createLiteral(vendor.getComment())));
// foaf:homepage
result.append(createTriplePO(FOAF.prefixed("homepage"), createURIref(vendor.getHomepage())));
// bsbm:country
result.append(
createTriplePO(
BSBM.prefixed("country"), createURIref(ISO3166.find(vendor.getCountryCode()))));
// dc:publisher
result.append(
createTriplePO(DC.prefixed("publisher"), Vendor.getPrefixed(vendor.getPublisher())));
// dc:date
GregorianCalendar date = new GregorianCalendar();
date.setTimeInMillis(vendor.getPublishDate());
String dateString = DateGenerator.formatDate(date);
result.append(
createTriplePOEnd(
DC.prefixed("date"), createDataTypeLiteral(dateString, XSD.prefixed("date"))));
return result.toString();
}
/*
* Converts the Product Object into an TriG String
* representation.
*/
private String convertProduct(Product product) {
StringBuffer result = new StringBuffer();
// First the uriref for the subject
result.append(Product.getPrefixed(product.getNr(), product.getProducer()));
result.append("\n");
// rdf:type
result.append(createTriplePO(RDF.prefixed("type"), BSBM.prefixed("Product")));
// rdfs:label
result.append(createTriplePO(RDFS.prefixed("label"), createLiteral(product.getLabel())));
// rdfs:comment
result.append(createTriplePO(RDFS.prefixed("comment"), createLiteral(product.getComment())));
// bsbm:productType
if (forwardChaining) {
ProductType pt = product.getProductType();
while (pt != null) {
result.append(createTriplePO(RDF.prefixed("type"), pt.getPrefixed()));
pt = pt.getParent();
}
} else {
result.append(createTriplePO(RDF.prefixed("type"), product.getProductType().getPrefixed()));
}
// bsbm:productPropertyNumeric
Integer[] ppn = product.getProductPropertyNumeric();
for (int i = 0, j = 1; i < ppn.length; i++, j++) {
Integer value = ppn[i];
if (value != null)
result.append(
createTriplePO(
BSBM.getProductPropertyNumericPrefix(j),
// createDataTypeLiteral(value.toString(),
// XSD.prefixed("integer"))
value.toString()));
}
// bsbm:productPropertyTextual
String[] ppt = product.getProductPropertyTextual();
for (int i = 0, j = 1; i < ppt.length; i++, j++) {
String value = ppt[i];
if (value != null)
result.append(
createTriplePO(
BSBM.getProductPropertyTextualPrefix(j),
createDataTypeLiteral(value, XSD.prefixed("string"))));
}
// bsbm:productFeature
Iterator<Integer> pf = product.getFeatures().iterator();
while (pf.hasNext()) {
Integer value = pf.next();
result.append(
createTriplePO(BSBM.prefixed("productFeature"), ProductFeature.getPrefixed(value)));
}
// bsbm:producer
result.append(
createTriplePO(BSBM.prefixed("producer"), Producer.getPrefixed(product.getProducer())));
// dc:publisher
result.append(
createTriplePO(DC.prefixed("publisher"), Producer.getPrefixed(product.getPublisher())));
// dc:date
GregorianCalendar date = new GregorianCalendar();
date.setTimeInMillis(product.getPublishDate());
String dateString = DateGenerator.formatDate(date);
result.append(
createTriplePOEnd(
DC.prefixed("date"), createDataTypeLiteral(dateString, XSD.prefixed("date"))));
return result.toString();
}
/*
* Converts the Offer Object into an TriG String
* representation.
*/
private String convertOffer(Offer offer) {
StringBuffer result = new StringBuffer();
// First the uriref for the subject
result.append(offer.getPrefixed());
result.append("\n");
// rdf:type
result.append(createTriplePO(RDF.prefixed("type"), BSBM.prefixed("Offer")));
// bsbm:product
int productNr = offer.getProduct();
int producerNr = Generator.getProducerOfProduct(productNr);
result.append(
createTriplePO(BSBM.prefixed("product"), Product.getPrefixed(productNr, producerNr)));
// bsbm:vendor
result.append(createTriplePO(BSBM.prefixed("vendor"), Vendor.getPrefixed(offer.getVendor())));
// bsbm:price
result.append(
createTriplePO(
BSBM.prefixed("price"),
// createDataTypeLiteral(offer.getPriceString(),BSBM.prefixed("USD"))
offer.getPriceString() + "e0"));
// bsbm:validFrom
GregorianCalendar validFrom = new GregorianCalendar();
validFrom.setTimeInMillis(offer.getValidFrom());
String validFromString = DateGenerator.formatDateTime(validFrom);
result.append(
createTriplePO(
BSBM.prefixed("validFrom"),
createDataTypeLiteral(validFromString, XSD.prefixed("dateTime"))));
// bsbm:validTo
GregorianCalendar validTo = new GregorianCalendar();
validTo.setTimeInMillis(offer.getValidTo());
String validToString = DateGenerator.formatDateTime(validTo);
result.append(
createTriplePO(
BSBM.prefixed("validTo"),
createDataTypeLiteral(validToString, XSD.prefixed("dateTime"))));
// bsbm:deliveryDays
result.append(
createTriplePO(
BSBM.prefixed("deliveryDays"),
// createDataTypeLiteral(offer.getDeliveryDays().toString(),
// XSD.prefixed("integer"))
offer.getDeliveryDays().toString()));
// bsbm:offerWebpage
result.append(
createTriplePO(BSBM.prefixed("offerWebpage"), createURIref(offer.getOfferWebpage())));
// dc:publisher
result.append(
createTriplePO(DC.prefixed("publisher"), Vendor.getPrefixed(offer.getPublisher())));
// dc:date
GregorianCalendar date = new GregorianCalendar();
date.setTimeInMillis(offer.getPublishDate());
String dateString = DateGenerator.formatDate(date);
result.append(
createTriplePOEnd(
DC.prefixed("date"), createDataTypeLiteral(dateString, XSD.prefixed("date"))));
return result.toString();
}