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changed mp1 and dta and added parseCSV method #3

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changed mp1 and dta and added parseCSV method #3

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54 changes: 32 additions & 22 deletions src/Main.java
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Original file line number Diff line number Diff line change
Expand Up @@ -8,32 +8,15 @@ public class Main {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);

// reads data from file and puts into data structures
System.out.print("Enter the CSV filename: ");
String f = s.nextLine();

List<Map<String, String>> dta = new ArrayList<>();
try (Scanner fs = new Scanner(new File(f))) {
fs.nextLine();

while (fs.hasNextLine()) {
String[] v = fs.nextLine().split(",");

int chg = Integer.parseInt(v[2]);

Map<String, String> mp1 = new HashMap<>();
mp1.put("id", v[0]);
mp1.put("tm", v[1]);
mp1.put("chg", String.valueOf(chg));
dta.add(mp1);
}
} catch (FileNotFoundException e) {
System.out.println("Error reading the file: " + e.getMessage());
s.close();
return;
}
List<Map<String, String>> forkDirectory = parseCSV(f);


Map<String, List<Map<String, String>>> mp2 = new HashMap<>();
for (Map<String, String> d : dta) {
for (Map<String, String> d : forkDirectory) {
String id = d.get("id");
List<Map<String, String>> lst = mp2.get(id);
if (lst == null) {
Expand All @@ -44,20 +27,22 @@ public static void main(String[] args) {
}
int cnt = mp2.size();

// number of forks in the data and select which fork to view
System.out.println("There are " + cnt + " forks available (fork1 to fork" + cnt + ").");
System.out.print("Enter the fork number to analyze (or 'all' for all forks): ");
String inp = s.nextLine();

List<Map<String, String>> sel;
if (inp.equalsIgnoreCase("all")) {
sel = dta;
sel = forkDirectory;
} else {
String id = "fork" + inp;
sel = mp2.get(id);
}

int sz = sel.size();

// formats date
DateTimeFormatter f1 = DateTimeFormatter.ISO_DATE_TIME;
LocalDateTime lat = null;
for (Map<String, String> d : sel) {
Expand All @@ -78,6 +63,7 @@ public static void main(String[] args) {
}
double avg = tot / sz;

// for max and min lines of code changed in a commit
int mx = Integer.MIN_VALUE;
int mn = Integer.MAX_VALUE;
for (Map<String, String> d : sel) {
Expand All @@ -90,6 +76,7 @@ public static void main(String[] args) {
}
}

// display results
System.out.println("\nStatistics:");
System.out.println("Number of commits: " + sz);
System.out.println("Most recent commit timestamp: " + latT);
Expand All @@ -100,4 +87,27 @@ public static void main(String[] args) {

s.close();
}

public static List<Map<String, String>> parseCSV(String filename) {
List<Map<String, String>> forkDirectory = new ArrayList<>();
try (Scanner fs = new Scanner(new File(filename))) {
fs.nextLine();

while (fs.hasNextLine()) {
String[] v = fs.nextLine().split(",");

int chg = Integer.parseInt(v[2]);

Map<String, String> initialToken = new HashMap<>();
initialToken.put("id", v[0]);
initialToken.put("tm", v[1]);
initialToken.put("chg", String.valueOf(chg));

forkDirectory.add(initialToken);
}
} catch (FileNotFoundException e) {
System.out.println("Error reading the file: " + e.getMessage());
}
return forkDirectory;
}
}