Initial commit 8.2

src/main/java/_8/Lecture.java

@@ -6,6 +6,10 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.StringJoiner;
 
 public class Lecture {
 
@@ -68,10 +72,18 @@ public class Lecture {
         this.lecturers.add(lecturer);
     }
 
+    public void setLecturers(List<Lecturer> lecturers) {
+        this.lecturers = lecturers;
+    }
+
     public void addSchedule(Date date) {
         this.schedule.add(date);
     }
 
+    public void setSchedule(List<Date> schedule) {
+        this.schedule = schedule;
+    }
+
     @Override
     public String toString() {
         StringBuilder result = new StringBuilder();
@@ -115,8 +127,8 @@ public class Lecture {
         DataInputStream inDataStream = new DataInputStream(in);
         Lecture result = new Lecture(inDataStream.readUTF(), inDataStream.readUTF(), inDataStream.readUTF(), inDataStream.readUTF());
 
-        int numberOfLectuerers = inDataStream.readInt();
-        for (int i = 0; i < numberOfLectuerers; i++) {
+        int numberOfLecturers = inDataStream.readInt();
+        for (int i = 0; i < numberOfLecturers; i++) {
             Lecturer lecturer = new Lecturer();
             lecturer.load(inDataStream);
             result.addLecturers(lecturer);
@@ -131,11 +143,126 @@ public class Lecture {
         return result;
     }
 
-    //public static void saveText(String filename, Lecture data) throws IOException {
-    //TODO: implement this (task 2)
-    //}
+    public static void saveText(String filename, Lecture data) throws IOException {
+        Path file = Paths.get(filename);
+        if (!Files.exists(file)) {
+            Files.createFile(file);
+        }
+        List<String> lines = new ArrayList<>();
+        StringBuilder sb = new StringBuilder();
+        sb.append("{\n");
+        sb.append("\tnumber: " + data.getNumber() + ",\n");
+        sb.append("\ttitle: " + data.getTitle() + ",\n");
+        sb.append("\tshortTitle: " + data.getShortTitle() + ",\n");
+        sb.append("\tsemester: " + data.getSemester() + ",\n");
+
+        sb.append("\tlecturers: [\n");
+        List<Lecturer> lecturers = data.getLecturers();
+        StringJoiner sjLect = new StringJoiner(",\n");
+        for (Lecturer l : lecturers) {
+            sjLect.add("\t\t{\n\t\t firstname: " + l.getFirstName() + ",\n\t\t" + " lastname: " + l.getLastName() + "\n\t\t}");
+        }
+        sb.append(sjLect.toString()).append("\n\t],\n");
+
+        sb.append("\tschedule: [\n");
+        List<Date> schedule = data.getSchedule();
+        StringJoiner sjSched = new StringJoiner(",\n");
+        for (Date s : schedule) {
+            List<String> topics = s.getTopics();
+            StringJoiner sjTopics = new StringJoiner(",");
+            for (String t : topics) {
+                sjTopics.add("\n\t\t  " + t);
+            }
+            sjSched.add("\t\t{\n\t\t time: " + s.getYear() + "-" + s.getMonth() + "-" + s.getDay() + " " + s.getHour() + ", " + "\n\t\t " + "lectureHall: " + s.getLectureHall() + ",\n\t\t topics: [" + sjTopics + "\n\t\t ]\n\t\t}");
+        }
+        sb.append(sjSched.toString()).append("\n\t]");
+        sb.append("\n}");
+
+        lines.add(sb.toString());
+        Files.write(file, lines);
+    }
 
-    //public static Lecture loadText(String filename) throws IOException {
-    //TODO: implement this (task 2)
-    //}
+    public static Lecture loadText(String filename) throws IOException {
+        Path file = Paths.get(filename);
+        List<String> data = Files.readAllLines(file);
+
+        String number = null;
+        String title = null;
+        String shortTitle = null;
+        String semester = null;
+        List<Lecturer> lecturers = new ArrayList<>();
+        List<Date> schedule = new ArrayList<>();
+
+        boolean lecturersFlag = false;
+        boolean scheduleFlag = false;
+        boolean topicsFlag = false;
+
+        int numberOfLecturers = 0;
+        int numberOfDates = 0;
+
+        for (String l : data) {
+            if (l.contains("number:")) {
+                number = splitIdentifier(l, "number: ");
+            } else if (l.contains("title:")) {
+                title = splitIdentifier(l, "title: ");
+            } else if (l.contains("shortTitle:")) {
+                shortTitle = splitIdentifier(l, "shortTitle: ");
+            } else if (l.contains("semester:")) {
+                semester = splitIdentifier(l, "semester: ");
+            } else if (l.contains("lecturers:")) {
+                lecturersFlag = true;
+            } else if (l.contains("schedule:")) {
+                scheduleFlag = true;
+            } else if (lecturersFlag) {
+                if (l.contains("{")) {
+                    numberOfLecturers++;
+                    lecturers.add(new Lecturer());
+                } else if (l.contains("firstname: ")) {
+                    String firstnameLine = splitIdentifier(l, "firstname: ");
+                    lecturers.get(numberOfLecturers-1).setFirstName(firstnameLine);
+                } else if (l.contains("lastname: ")) {
+                    String lastnameLine = splitIdentifier(l, "lastname: ");
+                    lecturers.get(numberOfLecturers-1).setLastName(lastnameLine);
+                } else if (l.contains("]")) {
+                    lecturersFlag = false;
+                }
+            } else if (scheduleFlag) {
+                if (l.contains("{")) {
+                    numberOfDates++;
+                    schedule.add(new Date());
+                } else if (l.contains("time: ")) {
+                    String timeLine = splitIdentifier(l, "time: ");
+                    String[] time = timeLine.split("-");
+                    schedule.get(numberOfDates-1).setYear(Integer.parseInt(time[0]));
+                    schedule.get(numberOfDates-1).setMonth(Integer.parseInt(time[1]));
+                    String[] time2 = time[2].split(" ");
+                    schedule.get(numberOfDates-1).setDay(Integer.parseInt(time2[0]));
+                    schedule.get(numberOfDates-1).setHour(Integer.parseInt(time2[1]));
+                } else if (l.contains("lectureHall: ")) {
+                    String lectureHallLine = splitIdentifier(l, "lectureHall: ");
+                    schedule.get(numberOfDates-1).setLectureHall(lectureHallLine);
+                } else if (l.contains("topics: ")) {
+                    topicsFlag = true;
+                } else if (l.contains("]") && topicsFlag) {
+                    topicsFlag = false;
+                } else if (topicsFlag) {
+                    String[] topicLine = l.split(",");
+                    schedule.get(numberOfDates-1).addTopics(topicLine[0].trim());
+                } else if (l.contains("]")) {
+                    scheduleFlag = false;
+                }
+            }
+        }
+
+        Lecture result = new Lecture(number, title, shortTitle, semester);
+        result.setSchedule(schedule);
+        result.setLecturers(lecturers);
+        return result;
+    }
+
+    private static String splitIdentifier(String s, String regex) {
+        String[] result = s.split(regex);
+        result = result[1].split(",");
+        return result[0];
+    }
 }

src/main/java/provided/_8/LectureOMP.java

@@ -11,9 +11,9 @@ public class LectureOMP {
 			Lecture omp = Lecture.load("omp.dat");
 			System.out.println(omp);
 			// task 2
-			//Lecture.saveText("omp.txt", omp);
-			//omp = Lecture.loadText("omp.txt");
-			//System.out.println(omp);
+			Lecture.saveText("omp.txt", omp);
+			omp = Lecture.loadText("omp.txt");
+			System.out.println(omp);
 		} catch (IOException e) {
 			e.printStackTrace();
 		}