public static void printInput(Product[] objectArray) throws IOException {
System.out.println("The input data from the file is: \n");
for (Product item : objectArray) {
System.out.println(item.getName() + " " + item.getPrice());
}
} // (optional) - displays what was read from the input file
// retrieve stored list of products from products file
public Product[] getStoredProducts() {
Product[] products = (Product[]) readFile(getProductFileName());
// print names of products being returned
for (Product product : products) {
System.out.println("getStoredProducts: Returned " + product.getName());
}
return products;
}
// retrieve all reviews for a product from the database
public String[][] getProductReviews(String name) {
String[][] reviews = null;
Product product = getProductEntry(name);
if (product != null) {
reviews = product.getRev(); // get product review
}
return reviews;
}
// retrieve product from database
public Product getProductEntry(String name) {
Product product = null;
for (Product entry : getProducts()) {
if (entry != null && entry.getName().equals(name)) {
product = entry;
break;
}
}
return product;
}
// remove product review from database
public boolean removeReviewEntry(String name, String review_id) {
boolean success = true;
Product product = getProductEntry(name); // retrieve product
if (product != null) {
product.deleteReview(review_id); // remove product review
} else {
success = false;
}
return success;
}
public static void main(String[] args) throws IOException {
FileReader fileReader = new FileReader("productsInput.txt");
BufferedReader reader = new BufferedReader(fileReader);
FileWriter fileWriter = new FileWriter("productsOutput.txt");
BufferedWriter writer = new BufferedWriter(fileWriter);
ArrayList<Product> products = new ArrayList<Product>();
String line = reader.readLine();
while (line != null) {
String[] input = line.split(" ");
String productName = input[0];
Float productPrice = Float.parseFloat(input[1]);
Product product = new Product(productName, productPrice);
products.add(product);
line = reader.readLine();
}
fileReader.close();
Collections.sort(
products,
new Comparator<Product>() {
@Override
public int compare(Product firstProduct, Product secondProduct) {
if (firstProduct.getNumber() < secondProduct.getNumber()) {
return -1;
} else if (firstProduct.getNumber() > secondProduct.getNumber()) {
return 1;
}
return 0;
}
});
for (Product product : products) {
writer.write(product.toString());
writer.write("\n");
}
writer.close();
}
// remove product from database
public boolean deleteProduct(String name) {
boolean success = true;
Iterator<Product> products = this.product_list.iterator();
while (products.hasNext()) {
Product entry = products.next();
if (entry.getName().equals(name)) {
success = this.product_list.remove(entry);
removeStoredLocation(name); // remove product entry
break;
}
}
return success;
}
// add product review
public boolean addProductReview(String name, String user, String score, String review) {
boolean success = true;
Product product = getProductEntry(name); // find product entry
System.out.println("addProductReview: Retrived Entry " + product);
if (product != null) {
// add product review
product.addReview(user, score, review);
} else {
success = false;
}
return success;
}
/** Finds the product combinations of numItems items with $1 of the totalPrice */
private void findProductCombination(
ArrayList<Product> productList, double target, ArrayList<Product> partial) {
// Keeping +-2 dollar as the price search window.
int priceBuffer = 2;
// if partial size > numItems, you already have too many items, so stop
if (partial.size() > itemCount) {
return;
}
double sum = 0;
for (Product x : partial) sum += x.getPrice();
if (Math.abs(sum - target) < priceBuffer
&& partial.size() == itemCount
&& desiredProductList.size() < 25) {
// if no price combos yet, just add it on
if (desiredProductList.size() == 0) {
desiredProductList.add(new Combination(partial, totalPrice));
}
// otherwise, check it against the most recent product combo to make sure you're not repeating
// TODO: check all product combos
else {
Combination testerCombo = desiredProductList.get(desiredProductList.size() - 1);
Combination partialCombo = new Combination(partial, totalPrice);
if (!partialCombo.equals(testerCombo)) {
desiredProductList.add(partialCombo);
}
}
}
// if sum is at or within $1 of target, then stop - done!
if (sum >= target + priceBuffer) {
return;
}
// otherwise, recursively continue adding another product to combo and test it
for (int i = 0; i < productList.size() && !(partial.size() == itemCount && sum < target); i++) {
ArrayList<Product> remaining = new ArrayList<Product>();
Product n = productList.get(i);
for (int j = i + 1; j < productList.size(); j++) {
remaining.add(productList.get(j));
}
ArrayList<Product> partial_rec = new ArrayList<Product>(partial);
partial_rec.add(n);
findProductCombination(remaining, target, partial_rec);
}
}
// add product to database using a product object
public boolean addProductEntry(Product product, String server_name) {
boolean success = true;
this.product_list.add(product); // add product to database
addStoredLocation(product.getName(), server_name); // update stored locations of product
return success;
}
/**
* Displays all Product entries in Inventory line by line, or prints an empty notification if
* there are no Products in Inventory.
*/
public void displayInventory() {
Collections.sort(
inv,
new Comparator<Product>() {
public int compare(Product p1, Product p2) {
return p1.getSku() - p2.getSku();
}
});
if (inv.isEmpty()) {
System.out.println(
"Inventory is empty, returning to Store " + "Menu..."); // Inventory is empty
} else
for (Product p : inv) {
System.out.println(p.toStringGeneric()); // Display Inventory
// contents in order they appear in ArrayList
}
System.out.println();
}
/**
* Test driver for class <code>OrderItem</code>.
*
* @param args not used.
*/
public static void main(String[] args) {
stdOut.println("");
stdOut.println("Testing class OrderItem...");
String code = "C001";
String description = "Colombia, Whole, 1 lb";
double price = 17.99;
int quantity = 5;
int newQuantity = 10;
Product product = new Product(code, description, price);
// Test accessors
OrderItem item = new OrderItem(product, quantity);
assertTrue("1: testing method getProduct", product.equals(item.getProduct()));
assertTrue("2: testing method getQuantity", quantity == item.getQuantity());
// Test mutator
item = new OrderItem(product, quantity);
item.setQuantity(newQuantity);
assertTrue("3: testing method setQuantity", newQuantity == item.getQuantity());
// Test method valueOf
item = new OrderItem(product, quantity);
double value = price * (double) quantity;
assertTrue("4: testing method valueOf", value == item.getValue());
// Test method toString
item = new OrderItem(product, quantity);
String result = quantity + " " + code + " " + price;
assertTrue("5: testing method toString", result.equals(item.toString()));
stdOut.println("done");
}
public static void main(String[] args) {
try {
int n = readLinesNumber();
Product[] menu = readInputFile(n);
printInput(menu);
String[] output = Product.priceSort(menu, n);
writeToFile(output);
} catch (IOException err) {
System.err.println(err.getMessage());
}
}
/*
* 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 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();
}
