MODEL
//yuec2 Yue Cheng package hw2; import java.io.File; import java.io.FileNotFoundException; import java.util.HashMap; import java.util.Scanner; import javafx.beans.property.StringProperty; import javafx.collections.FXCollections; import javafx.collections.ObservableMap; public class Model extends DataFiler{ ObservableMap<StringProperty, Product> productsMap = FXCollections.observableHashMap(); static ObservableMap<StringProperty, Nutrient> nutrientsMap = FXCollections.observableHashMap(); Product[] products; Nutrient[] nutrients; public void readProducts(String productFile) { // TODO Auto-generated method stub //initialize two Scanner //Scanner fileScanner is used to count the number of lines in file Scanner fileScanner = null; //Scanner sc is used to read information into the products array Scanner sc = null; //fileContent is used to store all the information for this array StringBuilder fileContent = new StringBuilder(); try { File file = new File(productFile); fileScanner = new Scanner(file); sc = new Scanner(file); } catch (FileNotFoundException e) { e.printStackTrace(); } int countOfLines = 0; //skip the title line fileScanner.nextLine(); while (fileScanner.hasNextLine()) { //add all the information into the fileContent fileContent.append(fileScanner.nextLine()); //get countOfLines by using fileScanner countOfLines++; } //initialize a Product array using the countOfLines as size products = new Product[countOfLines]; //skip the title line sc.nextLine(); for (int i = 0; i < countOfLines; i++) { //put every line's product information into a String array temp String[] temp = sc.nextLine().toString().split("",""); //get information from the temp array and assign as each product's information products[i] = new Product(); //StringProperty is not a string? products[i].ndbNumber.set(temp[0]+'"'); products[i].productName.set(temp[1].trim()); products[i].ingredients.set(temp[7].trim()); products[i].manufacturer.set(temp[4].trim()); productsMap.put(products[i].ndbNumber, products[i]); } } public void readNutrients(String nutrientFile) { //initialize 2 Scanner //Scanner fileScanner is used to count the number of lines in file Scanner fileScanner = null; //Scanner sc is used to read information into the nutrients array Scanner sc = null; //StringBuilder contentOfUniqueNutrients is used to store information of the unique nutrients StringBuilder contentOfUniqueNutrients = new StringBuilder(); //fileContent is used to store all the information for this array StringBuilder fileContent = new StringBuilder(); try { File file = new File(nutrientFile); fileScanner = new Scanner(file); sc = new Scanner(file); } catch (FileNotFoundException e) { e.printStackTrace(); } //skip the title line fileScanner.nextLine(); //initialize the count numbers int countOfLines = 0; int numOfUniqueNutirents = 0; while (fileScanner.hasNextLine()) { //get one line's information into the String cur String cur = fileScanner.nextLine(); //extract the nutrients's id to identify each unique nutrient String id = cur.split("","")[1]; //add all the information into the fileContent fileContent.append(cur); //get countOfLines by using fileScanner countOfLines++; if (!contentOfUniqueNutrients.toString().contains(id)) { //if the id is unique, append this nutrient's information contentOfUniqueNutrients.append(cur); //split each line by contentOfUniqueNutrients.append(" "); //count the number for unique nutrients numOfUniqueNutirents++; } } //skip the title line sc.nextLine(); //initialize an array using the numOfUniqueNutirents as size nutrients = new Nutrient[numOfUniqueNutirents]; //store each line's information into a string array String[] lines = contentOfUniqueNutrients.toString().split(" ", -1); for (int i = 0; i < numOfUniqueNutirents; i++) { //split each array's elements String[] temp1 = lines[i].toString().split("",", -1); //assign each element's information nutrients[i] = new Nutrient(); nutrients[i].nutrientCode.set(temp1[1].replaceAll(""", "").trim()); nutrients[i].nutrientName.set(temp1[2].replaceAll(""", "").trim()); nutrients[i].nutrientUom.set(temp1[5].replaceAll(""", "").trim()); nutrientsMap.put(nutrients[i].nutrientCode, nutrients[i]); } } public void readServingSizes(String servingSizeFile) { //initialize two Scanner //Scanner fileScanner is used to count the number of lines in file Scanner fileScanner = null; //Scanner sc is used to read information into the products array Scanner sc = null; //add all the information into the fileContent StringBuilder fileContent = new StringBuilder(); try { File file = new File(servingSizeFile); fileScanner = new Scanner(file); sc = new Scanner(file); } catch (FileNotFoundException e) { e.printStackTrace(); } int countOfLines = 0; //get countOfLines fileScanner.nextLine(); while (fileScanner.hasNextLine()) { fileContent.append(fileScanner.nextLine()); countOfLines++; } //count the number of words of each line of serving size file int lengthOfServingSizeFile = sc.nextLine().toString().split("","").length; //initialize an array using the lengthOfServingSizeFile as size String[] temp = new String[lengthOfServingSizeFile]; for (int i = 0; i < countOfLines; i++) { //split each array's elements temp = sc.nextLine().toString().split("",""); //assign each element's information products[i] = new Product(); products[i].servingSize.set(Float.parseFloat(temp[1].trim())); products[i].servingUom.set(temp[2].trim()); products[i].householdSize.set(Float.parseFloat(temp[3].trim())); products[i].householdUom.set(temp[4].trim()); productsMap.put(products[i].ndbNumber, products[i]); } } @Override public void writeFile(String filename) { // TODO Auto-generated method stub } @Override public boolean readFile(String filename) { // TODO Auto-generated method stub //how to judge the file? CSVFiler cf = new CSVFiler(); XMLFiler xf = new XMLFiler(); if (filename.contains("csv")) cf.readFile(filename); if (filename.contains("xml")) xf.readFile(filename); return false; } }
CSVFiler
package hw2; import java.io.File; import java.io.FileNotFoundException; import java.util.Scanner; public class CSVFiler extends DataFiler{ @Override public void writeFile(String filename) { // TODO Auto-generated method stub //no code in this version } @Override public boolean readFile(String filename) { // TODO Auto-generated method stub Scanner sc = null; //add all the information into the fileContent StringBuilder fileContent = new StringBuilder(); try { File file = new File("Profile1.csv"); sc = new Scanner(file); } catch (FileNotFoundException e) { e.printStackTrace(); } fileContent.append(sc.nextLine()); String[] temp = fileContent.toString().split("",""); //Female(float age, float weight, float height, float physicalActivityLevel, String ingredientsToAvoid) { Female female = new Female(Float.valueOf(temp[1]), Float.valueOf(temp[2]), Float.valueOf(temp[3]), Float.valueOf(temp[4]),temp[5]); Person p = female; //how to judge correct or not? return false; } }
最后一段改的CSVFiler
public boolean readFile(String filename) { CSVFormat csvFormat = CSVFormat.DEFAULT.withFirstRecordAsHeader(); try { CSVParser csvParser = CSVParser.parse(new FileReader(filename), csvFormat); for (CSVRecord csvRecord : csvParser) { Person person = new Person(csvRecord.get(1), csvRecord.get(2), csvRecord.get(3), csvRecord.get(4), csvRecord.get(5)); } } catch (FileNotFoundException e1) { e1.printStackTrace(); return false;} catch (IOException e1) { e1.printStackTrace(); return false;} return true;}