Parsers, Core Files and Dataset Controllers

2016-09-09 10:05:02 +12:00
parent f0e1691f69
commit bbb9a250ba
22 changed files with 83161 additions and 74 deletions
@@ -0,0 +1,127 @@
+package seng202.group9.Controller;
+
+import seng202.group9.Core.Airline;
+
+import java.io.*;
+import java.util.ArrayList;
+
+public class AirlineParser extends Parser {
+    String filePath = "";
+    ArrayList<Airline> parsedAirline;
+
+    public AirlineParser(String filePath){
+        this.filePath = filePath;
+        parsedAirline = new ArrayList<Airline>();
+    }
+
+    public String parse() throws DataException{
+        int successful = 0;
+        int error = 0;
+        int duplicate = 0;
+
+        File file = new File(filePath);
+        BufferedReader reader = null;
+
+        try {
+            reader = new BufferedReader(new FileReader(file));
+            String line = null;
+
+            while ((line = reader.readLine()) != null) {
+                //read file here
+                //id, name, alias, city, iata, icao, callsign, country, active
+                //sample line: 2,"135 Airways",\N,"","GNL","GENERAL","United States","N"
+                String airlName = "";
+                String airlAlias = "";
+                String airlIATA = "";
+                String airlICAO = "";
+                String airlCallsign = "";
+                String airlCountry = "";
+                String airlActive = "";
+                String parts[] = {"", "", "", "", "", "", "", ""};
+                int part = 0;
+                boolean inQuotes = false;
+                for (int i = 0; i < line.length(); i ++){
+                    if (line.charAt(i) == ','){
+                        if (inQuotes == true){
+                            parts[part] += line.charAt(i);
+                        }else{
+                            part++;
+                        }
+                    }else if (line.charAt(i) == '\"'){
+                        inQuotes = !inQuotes;
+                    }else {
+                        parts[part] += line.charAt(i);
+                    }
+                }
+                //check length
+                if (parts.length != 8){
+                    System.out.println(parts[1] + " does not have 8 entries.");
+                    error++;
+                    continue;
+                }
+                //types do not need to be checked as they are all strings
+                boolean errorBreak = false;
+                //cehck sizes of [][] eg {3,0} will check if length == 3 or == 0. if -1 the size is ignored
+                int partSizes[][] = {{-1}, {-1}, {-1}, {2,0}, {3,0}, {-1}, {-1}, {1}};
+                for (int i = 1; i < partSizes.length; i ++){
+                    boolean passable = false;
+                    for (int j = 0; j < partSizes[i].length; j++){
+                        if (partSizes[i][j] != -1) {
+                            if (parts[i].equals("\\N")){
+                                parts[i] = "";
+                            }
+                            if (parts[i].length() == partSizes[i][j] || parts[i].equals("-") ||
+                                    parts[i].equals("N/A")) {
+                                passable = true;
+                            }
+                        }else{
+                            passable = true;
+                        }
+                    }
+                    if (passable == false){
+                        System.out.println(parts[1] + " has Length: " + parts[i].length() + ", Value: " + parts[i] + " @ Index: " + i);
+                        error++;
+                        errorBreak = true;
+                        break;
+                    }
+                }
+                if (errorBreak == true){
+                    continue;
+                }
+                //passing is done now add stuff to array
+                //id, name, alias, iata, icao, callsign, country, active
+                airlName = parts[1];
+                airlAlias = parts[2];
+                airlIATA = parts[3];
+                airlICAO = parts[4];
+                airlCallsign = parts[5];
+                airlCountry = parts[6];
+                airlActive = parts[7];
+                parsedAirline.add(new Airline(airlName, airlAlias, airlIATA, airlICAO, airlCallsign, airlCountry, airlActive));
+                successful++;
+            }
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+            throw new DataException("File: " +this.filePath+" is Missing.");
+        } catch (IOException e) {
+            e.printStackTrace();
+            throw new DataException(this.filePath + " is Corrupted.");
+        } finally {
+            try {
+                if (reader != null) {
+                    reader.close();
+                }
+            } catch (IOException e) {
+                throw new DataException(this.filePath + " is unable to initialise reader.");
+            }
+        }
+
+        return String.format("Entries Successfully Entered: %1$d.\n" +
+                "Entries With Errors: %2$d", successful, error);
+    }
+
+    public ArrayList<Airline> getResult(){
+        return parsedAirline;
+    }
+
+}