/**

* Student ID: V00816592

* Date: 07/31/15

* Program Name: Extra.java

* Program Description: Extra contains algorithm which runs WordReferences with all of the provided

* testcases from tests.txt and compares

* computed output against the expected results (results.txt)

* @Author Isaac Sahle

*/

//Sample command-line input .. java Extra --input tests/in01.txt --output tests/out01.txt

import java.io.*;

import java.util.*;

public class Extra{

public static BSTRefBased rawRefs(String filename) {

BSTRefBased result = new BSTRefBased();

try {

Scanner scanner = new Scanner(new File(filename));

int lineNum = 1;

while (scanner.hasNext()) {

String line = scanner.nextLine();

line = line.trim();

line = line.replaceAll("\\p{Punct}+", "");

if (line.equals("")) {

continue;

}

String words[] = line.split("\\s+");

for (String w : words) {

String ww = w.toLowerCase();

WordRefs wf = result.retrieve(ww);

if (wf == null) {

result.insert(ww);

wf = result.retrieve(ww);

}

wf.addLine(lineNum);

}

lineNum++;

}

} catch (IOException ioe) {

System.err.println(ioe.getMessage());

System.exit(1);

} catch (NullPointerException npe) {

System.err.println("One of the tree routines created a " +

"null pointer exception");

System.exit(2);

}

return result;

}

public static void filterRefs(BSTRefBased tree, String words[]) {

for (String w : words) {

tree.delete(w);

}

}

public static void main(String[] args) {

String infileName1 = null;

String infileName2 = null;

boolean passed = true;

try{

//process command line arguments

for (int i = 0; i < args.length; i++) {

if (args[i].equals("--input")) {

infileName1 = args[i+1];

} else if (args[i].equals("--output")) {

infileName2 = args[i+1];

}

}

if (infileName1 == null) {

System.out.println("Usage: please provide the first input filename");

}

if (infileName2 == null) {

System.out.println("Usage: please provide the second input filename");

}

if (infileName1 == null || infileName2 == null) {

System.exit(1);

}

// Processing can begin, file names have been set

Scanner infileScanner1 = new Scanner(new File(infileName1));

Scanner infileScanner2 = new Scanner(new File(infileName2));

String exclude[] = {"a", "the", "i", "it", "is"};

BSTRefBased result = rawRefs(infileName1);

filterRefs(result,exclude);

//for each WordRefs in the bst, compare each string and count to expected output

for (WordRefs wf : result) {

if(!(wf.toString().equals(infileScanner2.nextLine()))){

passed = false;

}

}

}

catch (IOException e) {

System.err.println(e.getMessage());

System.exit(1);

}

catch (ArrayIndexOutOfBoundsException e) {

System.err.println("Probably not enough arguments provided.\n");

System.exit(1);

}

System.out.println("Results are the same: " + passed);

}

}