public static void main(String[] args) {
// create a ProductMatcher object to match the listings to product. The constructor take a
// string as the name of output file
ProductMatcher pMatcher = new ProductMatcher("data/output.txt");
if (args.length < 2) {
System.out.println("Proper Usage is: java Main productsInput listingsIuput");
System.exit(0);
}
// parse the json strings from the input file use ProductMatcher pMatcher.
parseInput(args[0], pMatcher, 0);
parseInput(args[1], pMatcher, 1);
// match listing objects to product objects
pMatcher.match();
// print the result to output.txt
pMatcher.printResult();
}
public static void parseInput(String inputFile, ProductMatcher pMatcher, int option) {
try {
if (inputFile == null) {
return;
}
FileInputStream fstream = new FileInputStream(inputFile);
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine;
// Read File Line By Line
while ((strLine = br.readLine()) != null) {
// parse the json string and create related objects such as Products, Manufacturer and
// Listing.
if (option == 0) pMatcher.parseProduct(strLine);
if (option == 1) pMatcher.parseListing(strLine);
}
in.close();
} catch (Exception e) {
System.err.println("Error: " + e.getMessage());
}
}