Merge branch 'master' into improvements_1

src/main/java/nl/andrewlalis/Main.java

@@ -1,24 +1,12 @@
 package nl.andrewlalis;
 
-import nl.andrewlalis.model.database.Database;
-import nl.andrewlalis.git_api.GithubManager;
-import nl.andrewlalis.model.Student;
-import nl.andrewlalis.model.StudentTeam;
 import nl.andrewlalis.ui.control.command.CommandExecutor;
-import nl.andrewlalis.ui.control.command.Executable;
+import nl.andrewlalis.ui.control.command.executables.*;
-import nl.andrewlalis.ui.control.command.executables.ArchiveRepos;
-import nl.andrewlalis.ui.control.command.executables.GenerateAssignmentsRepo;
-import nl.andrewlalis.ui.control.command.executables.ReadStudentsFileToDB;
 import nl.andrewlalis.ui.view.InitializerApp;
 import nl.andrewlalis.util.CommandLine;
 import nl.andrewlalis.util.Logging;
-import nl.andrewlalis.util.TeamGenerator;
 
-import javax.swing.*;
-import java.io.IOException;
-import java.util.List;
 import java.util.Map;
-import java.util.logging.Level;
 import java.util.logging.Logger;
 
 /**
@@ -34,12 +22,7 @@ public class Main {
         Map<String, String> userOptions = CommandLine.parseArgs(args);
 
         // Initialize logger.
-        try {
+        Logging.setup();
-            Logging.setup(true); // TODO: Replace true with command line arg.
-
-        } catch (IOException e) {
-            logger.severe("Unable to save log to file.");
-        }
 
         // Command executor which will be used by all actions the user can do.
         CommandExecutor executor = new CommandExecutor();
@@ -47,37 +30,21 @@ public class Main {
         // Initialize User Interface.
         InitializerApp app = new InitializerApp(executor);
         app.begin();
+        app.setAccessToken(userOptions.get("token"));
 
-        Database db = new Database("database/initializer.sqlite");
+        // Initialize executable commands.
-        db.initialize();
+        executor.registerCommand("read_students", new ReadStudentsFile(app));
+        executor.registerCommand("archive_all", new ArchiveRepos());
+        executor.registerCommand("generate_assignments", new GenerateAssignmentsRepo());
+        executor.registerCommand("define_ta_teams", new DefineTaTeams(app));
+        executor.registerCommand("list_errors", new ListErrors(app));
+        executor.registerCommand("delete_repos", new DeleteRepos());
+        executor.registerCommand("delegate_student_teams", new DelegateStudentTeams(app));
+        executor.registerCommand("setup_student_repos", new SetupStudentRepos(app));
 
-        executor.registerCommand("readstudents", new ReadStudentsFileToDB(db));
+        logger.info("GithubManager for Github Repositories in Educational Organizations.\n" +
-        executor.registerCommand("archiveall", new ArchiveRepos());
+                "© Andrew Lalis (2018), All rights reserved.\n" +
-        executor.registerCommand("generateassignments", new GenerateAssignmentsRepo());
+                "Program initialized.");
-
-        logger.info("GithubManager for Github Repositories in Educational Organizations. Program initialized.");
-
-
-
-        // Get studentTeams from CSV file.
-//        List<StudentTeam> studentTeams = getStudentTeamsFromCSV(userOptions.get("input"), Integer.parseInt(userOptions.get("teamsize")));
-//
-//        GithubManager githubManager = new GithubManager(
-//                userOptions.get("organization"),
-//                userOptions.get("token"),
-//                "assignments_2018",
-//                "teaching-assistants",
-//                "advoop_2018"
-//        );
-
-        try {
-            //githubManager.initializeGithubRepos(studentTeams);
-            //githubManager.archiveAllRepositories("team");
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
     }
 
-
-
 }

src/main/java/nl/andrewlalis/git_api/GithubManager.java

@@ -5,6 +5,7 @@ import com.fasterxml.jackson.databind.node.ObjectNode;
 import nl.andrewlalis.model.Student;
 import nl.andrewlalis.model.StudentTeam;
 import nl.andrewlalis.model.TATeam;
+import nl.andrewlalis.model.TeachingAssistant;
 import org.apache.http.HttpResponse;
 import org.apache.http.client.methods.HttpPatch;
 import org.apache.http.entity.StringEntity;
@@ -15,6 +16,8 @@ import org.kohsuke.github.*;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
+import java.util.Random;
 import java.util.logging.Logger;
 
 /**
@@ -54,31 +57,43 @@ public class GithubManager {
     }
 
     /**
-     * Initializes the github repository for all studentTeams given.
+     * Gets a list of teams in the organization.
-     *
+     * @return A List of all TA teams in the organization.
-     * Creates for the entire organization:
-     * - an assignments repository with protected master branch and TA permissions.
-     * Creates for each team:
-     * - a repository
-     * - protected master branch
-     * - development branch
-     * - adds students to repository
-     * - adds all students to assignments repository.
-     * @param studentTeams The list of student studentTeams.
-     * @param teamAll The team of all teaching assistants.
-     * @param assignmentsRepoName The name of the assignments repo.
-     * @throws Exception If an error occurs while initializing the github repositories.
      */
-    public void initializeGithubRepos(List<StudentTeam> studentTeams, TATeam teamAll, String assignmentsRepoName) throws Exception {
+    public List<TATeam> getTeams() {
-        this.setupAssignmentsRepo(assignmentsRepoName, "fuck the police", teamAll.getName());
+        List<TATeam> teams = new ArrayList<>();
+        try {
+            Random rand = new Random();
+            for (Map.Entry<String, GHTeam> entry : this.organization.getTeams().entrySet()) {
+                TATeam team = new TATeam(entry.getKey(), entry.getValue().getId());
+                team.setGithubTeam(entry.getValue());
+                for (GHUser user : entry.getValue().listMembers().asList()) {
+                    team.addMember(new TeachingAssistant(rand.nextInt(), user.getName(), user.getEmail(), user.getLogin()));
+                }
+                teams.add(team);
+            }
+        } catch (IOException e) {
+            logger.severe("Could not get a list of teams in the organization.\n" + e.getMessage());
+            e.printStackTrace();
+        }
+        return teams;
+    }
 
-        StudentTeam t = new StudentTeam();
+    /**
-        Student s = new Student(3050831, "Andrew Lalis", "andrewlalisofficial@gmail.com", "andrewlalis", null);
+     * Gets a list of all teaching assistants, or members, in the organization.
-        t.addMember(s);
+     * @return A List of teaching assistants, and empty if an error occurred.
-        t.setId(42);
+     */
-
+    public List<TeachingAssistant> getMembers() {
-        this.setupStudentTeam(t, teamAll.getGithubTeam(), "advoop_2018");
+        List<TeachingAssistant> teachingAssistants = new ArrayList<>();
-        // TODO: Finish this method.
+        try {
+            for (GHUser member : this.organization.listMembers().asList()) {
+                teachingAssistants.add(new TeachingAssistant(-1, member.getName(), member.getEmail(), member.getLogin()));
+            }
+        } catch (IOException e) {
+            logger.severe("Could not get list of members in the organization.\n" + e.getMessage());
+            e.printStackTrace();
+        }
+        return teachingAssistants;
     }
 
     /**
@@ -97,7 +112,7 @@ public class GithubManager {
             logger.fine("Deleted pre-existing assignments repository.");
         }
 
-        this.assignmentsRepo = this.createRepository(assignmentsRepoName, team, description, false, true, false);
+        this.assignmentsRepo = this.createRepository(assignmentsRepoName, team, description, false, true, true);
 
         if (this.assignmentsRepo == null) {
             logger.severe("Could not create assignments repository.");
@@ -117,46 +132,46 @@ public class GithubManager {
      * @param team The student team to set up.
      * @param taTeam The team of teaching assistants that is responsible for these students.
      * @param prefix The prefix to append to the front of the repo name.
-     * @throws IOException If an HTTP request fails.
      */
-    public void setupStudentTeam(StudentTeam team, GHTeam taTeam, String prefix) throws IOException {
+    public void setupStudentRepo(StudentTeam team, TATeam taTeam, String prefix) {
         // First check that the assignments repo exists, otherwise no invitations can be sent.
         if (this.assignmentsRepo == null) {
             logger.warning("Assignments repository must be created before student repositories.");
             return;
         }
 
-        GHRepository repo = this.createRepository(team.generateUniqueName(prefix), taTeam, team.generateRepoDescription(), false, true, false);
+        GHRepository repo = this.createRepository(team.generateUniqueName(prefix), taTeam.getGithubTeam(), team.generateRepoDescription(), false, true, true);
 
         if (repo == null) {
             logger.severe("Repository for student team " + team.getId() + " could not be created.");
             return;
         }
 
-        this.protectMasterBranch(repo, taTeam);
+        this.protectMasterBranch(repo, taTeam.getGithubTeam());
         this.createDevelopmentBranch(repo);
+        this.addTATeamAsAdmin(repo, taTeam.getGithubTeam());
+        this.inviteStudentsToRepos(team, repo);
 
-        taTeam.add(repo, GHOrganization.Permission.ADMIN);
+        team.setRepository(repo);
-        logger.fine("Added team " + taTeam.getName() + " as admin to repository: " + repo.getName());
+        team.setTaTeam(taTeam);
-
-        List<GHUser> users = new ArrayList<>();
-        for (Student student : team.getStudents()) {
-            GHUser user = this.github.getUser(student.getGithubUsername());
-            users.add(user);
-        }
-
-        repo.addCollaborators(users);
-        this.assignmentsRepo.addCollaborators(users);
     }
 
     /**
      * Deletes all repositories in the organization.
-     * @throws IOException if an error occurs with sending requests.
+     * @param substring The substring which repository names should contain to be deleted.
      */
-    public void deleteAllRepositories() throws IOException {
+    public void deleteAllRepositories(String substring) {
         List<GHRepository> repositories = this.organization.listRepositories().asList();
         for (GHRepository repo : repositories) {
-            repo.delete();
+            if (repo.getName().contains(substring)) {
+                try {
+                    repo.delete();
+                    logger.info("Deleted repository: " + repo.getName());
+                } catch (IOException e) {
+                    logger.severe("Could not delete repository: " + repo.getName());
+                    e.printStackTrace();
+                }
+            }
         }
     }
 
@@ -164,7 +179,7 @@ public class GithubManager {
      * Archives all repositories whose name contains the given substring.
      * @param sub Any repository containing this substring will be archived.
      */
-    public void archiveAllRepositories(String sub) throws IOException {
+    public void archiveAllRepositories(String sub) {
         List<GHRepository> repositories = this.organization.listRepositories().asList();
         for (GHRepository repo : repositories) {
             if (repo.getName().contains(sub)) {
@@ -177,21 +192,62 @@ public class GithubManager {
      * Archives a repository so that it can no longer be manipulated.
      * TODO: Change to using Github API instead of Apache HttpUtils.
      * @param repo The repository to archive.
-     * @throws IOException If an error occurs with the HTTP request.
      */
-    public void archiveRepository(GHRepository repo) throws IOException {
+    private void archiveRepository(GHRepository repo) {
-        HttpPatch patch = new HttpPatch("https://api.github.com/repos/" + repo.getFullName() + "?access_token=" + this.accessToken);
+        try {
-        CloseableHttpClient client = HttpClientBuilder.create().build();
+            HttpPatch patch = new HttpPatch("https://api.github.com/repos/" + repo.getFullName() + "?access_token=" + this.accessToken);
-        ObjectMapper mapper = new ObjectMapper();
+            CloseableHttpClient client = HttpClientBuilder.create().build();
-        ObjectNode root = mapper.createObjectNode();
+            ObjectMapper mapper = new ObjectMapper();
-        root.put("archived", true);
+            ObjectNode root = mapper.createObjectNode();
-        String json = mapper.writeValueAsString(root);
+            root.put("archived", true);
-        patch.setEntity(new StringEntity(json));
+            String json = mapper.writeValueAsString(root);
-        HttpResponse response = client.execute(patch);
+            patch.setEntity(new StringEntity(json));
-        if (response.getStatusLine().getStatusCode() != 200) {
+            HttpResponse response = client.execute(patch);
-            throw new IOException("Could not archive repository: " + repo.getName() + ". Code: " + response.getStatusLine().getStatusCode());
+            if (response.getStatusLine().getStatusCode() != 200) {
+                throw new IOException("Could not archive repository: " + repo.getName() + ". Code: " + response.getStatusLine().getStatusCode());
+            }
+            logger.info("Archived repository: " + repo.getFullName());
+        } catch (IOException e) {
+            logger.severe("Could not archive repository: " + repo.getName());
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Invites students in a team to their repository, and the assignments repository.
+     * @param team The team of students to invite as collaborators.
+     * @param repo The repository created for the students.
+     */
+    private void inviteStudentsToRepos(StudentTeam team, GHRepository repo) {
+        try {
+            logger.finest("Adding students from team: " + team.getId() + " as collaborators.");
+            List<GHUser> users = new ArrayList<>();
+            for (Student student : team.getStudents()) {
+                GHUser user = this.github.getUser(student.getGithubUsername());
+                users.add(user);
+            }
+
+            repo.addCollaborators(users);
+            this.assignmentsRepo.addCollaborators(users);
+        } catch (IOException e) {
+            logger.severe("Could not add students as collaborators to assignments or their repo.\n" + team);
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Adds a teaching assistant team as admins to a particular student repository.
+     * @param studentRepo The student repository.
+     * @param taTeam The team to give admin rights.
+     */
+    private void addTATeamAsAdmin(GHRepository studentRepo, GHTeam taTeam) {
+        try {
+            taTeam.add(studentRepo, GHOrganization.Permission.ADMIN);
+            logger.fine("Added team " + taTeam.getName() + " as admin to repository: " + studentRepo.getName());
+        } catch (IOException e) {
+            logger.severe("Could not add TA Team: " + taTeam.getName() + " as admins to repository: " + studentRepo.getName());
+            e.printStackTrace();
         }
-        logger.info("Archived repository: " + repo.getFullName());
     }
 
     /**
@@ -225,7 +281,7 @@ public class GithubManager {
             repo.createRef("refs/heads/development", sha1);
             logger.fine("Created development branch of repository: " + repo.getName());
         } catch (IOException e) {
-            logger.severe("Could not create development branch for repository: " + repo.getName() + '\n' + e.getMessage());
+            logger.severe("Could not create development branch for repository: " + repo.getName());
             e.printStackTrace();
         }
     }
@@ -238,7 +294,7 @@ public class GithubManager {
      * @param hasWiki Whether the repo has a wiki enabled.
      * @param hasIssues Whether the repo has issues enabled.
      * @param isPrivate Whether or not the repository is private.
-     * @return The repository that was created, or
+     * @return The repository that was created, or null if it could not be created.
      */
     private GHRepository createRepository(String name, GHTeam taTeam, String description, boolean hasWiki, boolean hasIssues, boolean isPrivate){
         try {
@@ -248,12 +304,12 @@ public class GithubManager {
             builder.issues(hasIssues);
             builder.description(description);
             builder.gitignoreTemplate("Java");
-            builder.private_(isPrivate); // TODO: Change this to true for production
+            builder.private_(isPrivate);
             GHRepository repo = builder.create();
             logger.fine("Created repository: " + repo.getName());
             return repo;
         } catch (IOException e) {
-            logger.severe("Could not create repository: " + name + '\n' + e.getMessage());
+            logger.severe("Could not create repository: " + name);
             e.printStackTrace();
             return null;
         }

src/main/java/nl/andrewlalis/model/Organization.java

@@ -0,0 +1,88 @@
+package nl.andrewlalis.model;
+
+import nl.andrewlalis.model.error.Error;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Observable;
+
+/**
+ * This class represents the overarching model container for the entire application, and holds in memory all student
+ * teams created, teaching assistant teams, and any other state information that would be needed by the user interface
+ * or runtime executables.
+ */
+public class Organization extends Observable {
+
+    /**
+     * A list of all student teams in this organization. This is generated from a CSV file supplied after many students
+     * have filled in a Google form.
+     */
+    private List<StudentTeam> studentTeams;
+
+    /**
+     * A list of all teaching assistant teams in this organization. These are generated from requests to the Github API
+     * and possibly supplementary information. Each teaching assistant team maintains a list of all student teams for
+     * which it is responsible.
+     */
+    private List<TATeam> taTeams;
+
+    /**
+     * A queue of errors that accumulates as the program runs. These will be output to the user after execution of
+     * critical sections, so that inevitable errors due to input imperfections are not overlooked.
+     */
+    private List<Error> errors;
+
+    /**
+     * Constructs a new Organization object with all instance variables initialized to empty values.
+     */
+    public Organization() {
+        this.studentTeams = new ArrayList<>();
+        this.taTeams = new ArrayList<>();
+        this.errors = new ArrayList<>();
+    }
+
+    /**
+     * Determines if there are student teams available.
+     * @return True if there is at least one student team, or false otherwise.
+     */
+    public boolean hasStudentTeams() {
+        return this.studentTeams.isEmpty();
+    }
+
+    /**
+     * Adds an error to the list of accumulated errors.
+     * @param newError The newly generated error to add.
+     */
+    public void addError(Error newError) {
+        this.errors.add(newError);
+        this.setChanged();
+        this.notifyObservers();
+    }
+
+    // GETTERS
+    public List<StudentTeam> getStudentTeams() {
+        return this.studentTeams;
+    }
+
+    public List<Error> getErrors() {
+        return this.errors;
+    }
+
+    public List<TATeam> getTaTeams() {
+        return this.taTeams;
+    }
+
+    // SETTERS
+    public void setStudentTeams(List<StudentTeam> teams) {
+        this.studentTeams = teams;
+        this.setChanged();
+        this.notifyObservers();
+    }
+
+    public void setTaTeams(List<TATeam> teams) {
+        this.taTeams = teams;
+        this.setChanged();
+        this.notifyObservers();
+    }
+
+}

src/main/java/nl/andrewlalis/model/Person.java

@@ -26,6 +26,17 @@ public abstract class Person  {
      */
     protected String githubUsername;
 
+    /**
+     * Constructs a Person from only a github username, which is, in some cases, enough to perform a lot of actions.
+     * @param githubUsername The person's github username.
+     */
+    public Person(String githubUsername) {
+        this.number = -1;
+        this.name = null;
+        this.emailAddress = null;
+        this.githubUsername = githubUsername;
+    }
+
     /**
      * Constructs a Person from all the basic information needed.
      * @param number Either an S- or P-Number without the letter prefix.
@@ -72,10 +83,13 @@ public abstract class Person  {
             return false;
         }
         Person p = (Person)o;
+        boolean emailSame = (p.getEmailAddress() != null && p.getEmailAddress().equals(this.getEmailAddress()));
+        boolean githubSame = (p.getGithubUsername() != null && p.getGithubUsername().equals(this.getGithubUsername()));
+        boolean nameSame = (p.getName() != null && p.getName().equalsIgnoreCase(this.getName()));
         return p.getNumber() == this.getNumber()
-                || p.getEmailAddress().equals(this.getEmailAddress())
+                || emailSame
-                || p.getGithubUsername().equals(this.getGithubUsername())
+                || githubSame
-                || p.getName().equalsIgnoreCase(this.getName());
+                || nameSame;
     }
 
     /**

src/main/java/nl/andrewlalis/model/Student.java

@@ -2,12 +2,18 @@ package nl.andrewlalis.model;
 
 import java.util.List;
 import java.util.Map;
+import java.util.logging.Logger;
 
 /**
  * Represents one student's github information.
  */
 public class Student extends Person {
 
+    private static final Logger logger = Logger.getLogger(Student.class.getName());
+    static {
+        logger.setParent(Logger.getGlobal());
+    }
+
     /**
      * A list of partners that the student has said that they would like to be partners with.
      */

src/main/java/nl/andrewlalis/model/StudentTeam.java

@@ -1,5 +1,7 @@
 package nl.andrewlalis.model;
 
+import org.kohsuke.github.GHRepository;
+
 import java.util.Arrays;
 
 /**
@@ -7,6 +9,16 @@ import java.util.Arrays;
  */
 public class StudentTeam extends Team{
 
+    /**
+     * The repository belonging to this team.
+     */
+    private GHRepository repository;
+
+    /**
+     * The TATeam responsible for this student team.
+     */
+    private TATeam taTeam;
+
     public StudentTeam() {
         super(-1);
     }
@@ -24,16 +36,19 @@ public class StudentTeam extends Team{
      * A team is valid if and only if:
      *      - The student count is equal to the team size.
      *      - Each student is unique.
-     *      - Each student's preferred partners match all the others.
+     *      - Each student's preferred partners match all the others, or a student has no preferences.
      * @param teamSize The preferred size of teams.
      * @return True if the team is valid, and false otherwise.
      */
     public boolean isValid(int teamSize) {
         if (this.memberCount() == teamSize) {
             for (Student studentA : this.getStudents()) {
-                for (Student studentB : this.getStudents()) {
+                // If the student doesn't have an preferred partners, then assume that this is valid.
-                    if (!studentA.equals(studentB) && !studentA.getPreferredPartners().contains(studentB.getNumber())) {
+                if (!studentA.getPreferredPartners().isEmpty()) {
-                        return false;
+                    for (Student studentB : this.getStudents()) {
+                        if (!studentA.equals(studentB) && !studentA.getPreferredPartners().contains(studentB.getNumber())) {
+                            return false;
+                        }
                     }
                 }
             }
@@ -73,4 +88,20 @@ public class StudentTeam extends Team{
         }
         return sb.toString();
     }
+
+    public GHRepository getRepository() {
+        return this.repository;
+    }
+
+    public void setRepository(GHRepository repo) {
+        this.repository = repo;
+    }
+
+    public TATeam getTaTeam() {
+        return this.taTeam;
+    }
+
+    public void setTaTeam(TATeam team) {
+        this.taTeam = team;
+    }
 }

src/main/java/nl/andrewlalis/model/TATeam.java

@@ -1,63 +1,60 @@
 package nl.andrewlalis.model;
 
-import org.kohsuke.github.GHOrganization;
 import org.kohsuke.github.GHTeam;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 /**
  * Represents a teaching assistant team, which is itself a 'team' in the organization. This class is used for parsing
  * json from requests to github to get a list of all teams in the organization.
  */
-public class TATeam {
+public class TATeam extends Team {
-
-    private List<TeachingAssistant> teachingAssistants;
 
     /**
      * The team's display name.
      */
     private String name;
 
-    /**
-     * The team's unique identifier.
-     */
-    private int id;
-
     /**
      * The Github team associated with this team.
      */
     private GHTeam githubTeam;
 
+    /**
+     * A list of all student teams for which this TA team is responsible.
+     */
+    private List<StudentTeam> studentTeams;
+
     /**
      * Constructs a team without any teaching assistant members.
      * @param name The name of the team.
      * @param id The unique identifier for this team.
      */
     public TATeam(String name, int id) {
+        super(id);
         this.name = name;
-        this.id = id;
+        this.studentTeams = new ArrayList<>();
-        this.teachingAssistants = new ArrayList<TeachingAssistant>();
     }
 
     /**
-     * Constructs a team with a list of teaching assistants that are part of it.
+     * Gets a list of teaching assistants, as a convenience method to avoid having to do an array cast.
-     * @param teachingAssistants The list of teaching assistants that are part of the team.
+     * @return An array of all teaching assistant members of this team.
      */
-    public TATeam(List<TeachingAssistant> teachingAssistants, String name, int id) {
+    public TeachingAssistant[] getTeachingAssistants() {
-        this.teachingAssistants = teachingAssistants;
+        return Arrays.copyOf(this.getMembers(), this.memberCount(), TeachingAssistant[].class);
-        this.name = name;
-        this.id = id;
     }
 
     /**
-     * Gets the unique identification for this TA team.
+     * Adds the given student team to the list of teams that this TA team is responsible for.
-     * @return An integer representing the id of this team.
+     * @param team A student team.
      */
-    public int getId() {
+    public void addStudentTeam(StudentTeam team) {
-        return this.id;
+        this.studentTeams.add(team);
     }
 
+    // GETTERS
     public String getName() {
         return this.name;
     }
@@ -66,6 +63,11 @@ public class TATeam {
         return this.githubTeam;
     }
 
+    public List<StudentTeam> getStudentTeams() {
+        return this.studentTeams;
+    }
+
+    // SETTERS
     public void setGithubTeam(GHTeam team) {
         this.githubTeam = team;
     }

src/main/java/nl/andrewlalis/model/TeachingAssistant.java

@@ -1,7 +1,18 @@
 package nl.andrewlalis.model;
 
+/**
+ * Represents an administrator in the organization, who manages student teams.
+ */
 public class TeachingAssistant extends Person {
 
+    /**
+     * Constructs a Teaching Assistant from only a github username.
+     * @param githubUsername The person's github username.
+     */
+    public TeachingAssistant(String githubUsername) {
+        super(githubUsername);
+    }
+
     /**
      * Constructs a Teaching Assistant from all the basic information needed, much like its parent, Person.
      *

src/main/java/nl/andrewlalis/model/database/Database.java

@@ -82,7 +82,7 @@ public class Database {
      * @param personType The type of person to store, using a constant defined above.
      * @return True if successful, false otherwise.
      */
-    private boolean storePerson(Person person, int personType) {
+    public boolean insertPerson(Person person, int personType) {
         try {
             logger.finest("Storing person: " + person);
             String sql = "INSERT INTO persons (id, name, email_address, github_username, person_type_id) VALUES (?, ?, ?, ?, ?);";
@@ -92,113 +92,31 @@ public class Database {
             stmt.setString(3, person.getEmailAddress());
             stmt.setString(4, person.getGithubUsername());
             stmt.setInt(5, personType);
-            stmt.execute();
+            return stmt.execute();
-            return true;
         } catch (SQLException e) {
             logger.severe("SQLException while inserting Person: " + person + '\n' + e.getMessage());
             return false;
         }
     }
 
-    /**
-     * Stores a teaching assistant without a team.
-     * @param ta The teaching assistant to store.
-     * @return True if successful, false otherwise.
-     */
-    public boolean storeTeachingAssistant(TeachingAssistant ta) {
-        return this.storeTeachingAssistant(ta, TEAM_NONE);
-    }
-
-    /**
-     * Stores a teaching assistant in the database.
-     * @param ta The teaching assistant to store.
-     * @param teamId The teaching assistant's team id.
-     * @return True if successful, false otherwise.
-     */
-    public boolean storeTeachingAssistant(TeachingAssistant ta, int teamId) {
-        if (!storePerson(ta, PERSON_TYPE_TA)) {
-            return false;
-        }
-        try {
-            String sql = "INSERT INTO teaching_assistants (person_id, team_id) VALUES (?, ?);";
-            PreparedStatement stmt = this.connection.prepareStatement(sql);
-            stmt.setInt(1, ta.getNumber());
-            stmt.setInt(2, teamId);
-            stmt.execute();
-            return true;
-        } catch (SQLException e) {
-            logger.severe("SQL Exception while inserting TeachingAssistant.\n" + e.getMessage());
-            e.printStackTrace();
-            return false;
-        }
-    }
-
-    /**
-     * Stores a team in the database.
-     * @param team The team to store.
-     * @param type The type of team that this is.
-     * @return True if successful, false otherwise.
-     */
-    public boolean storeTeam(Team team, int type) {
-        try {
-            String sql = "INSERT INTO teams (id, team_type_id) VALUES (?, ?);";
-            PreparedStatement stmt = this.connection.prepareStatement(sql);
-            stmt.setInt(1, team.getId());
-            stmt.setInt(2, type);
-            stmt.execute();
-            return true;
-        } catch (SQLException e) {
-            logger.severe("SQLException while inserting team: " + team + '\n' + e.getMessage());
-            return false;
-        }
-    }
-
-    /**
-     * Stores a list of student teams in the database.
-     * @param teams The list of teams to store.
-     * @return True if successful, or false if an error occurred.
-     */
-    public boolean storeStudentTeams(List<StudentTeam> teams) {
-        for (StudentTeam team : teams) {
-            if (!this.storeTeam(team, TEAM_TYPE_STUDENT)) {
-                return false;
-            }
-            for (Student student : team.getStudents()) {
-                if (!this.storeStudent(student, team.getId())) {
-                    return false;
-                }
-            }
-        }
-        return true;
-    }
-
-    /**
-     * Stores a student without a team.
-     * @param student The student to store.
-     * @return True if successful, false otherwise.
-     */
-    public boolean storeStudent(Student student) {
-        return this.storeStudent(student, TEAM_NONE);
-    }
-
     /**
      * Stores a student in the database.
      * @param student The student to store.
-     * @param teamId The team id for the team the student is in.
      * @return True if the operation was successful, false otherwise.
      */
-    public boolean storeStudent(Student student, int teamId) {
+    public boolean insertStudent(Student student) {
         logger.finest("Storing student: " + student);
-        if (!storePerson(student, PERSON_TYPE_STUDENT)) {
+        if (!insertPerson(student, PERSON_TYPE_STUDENT)) {
             return false;
         }
         try {
-            String sql = "INSERT INTO students (person_id, team_id, chose_partner) VALUES (?, ?, ?);";
+            String sql = "INSERT INTO students (person_id, chose_partner) VALUES (?, ?);";
             PreparedStatement stmt = this.connection.prepareStatement(sql);
             stmt.setInt(1, student.getNumber());
-            stmt.setInt(2, teamId);
+            stmt.setInt(2, student.getPreferredPartners().size() > 0 ? 1 : 0);
-            stmt.setInt(3, student.getPreferredPartners().size() > 0 ? 1 : 0);
+            if (!stmt.execute()) {
-            stmt.execute();
+                return false;
+            }
             // Storing partners.
             String sqlPartner = "INSERT INTO student_preferred_partners (student_id, partner_id) VALUES (?, ?);";
             PreparedStatement stmtPartner = this.connection.prepareStatement(sqlPartner);
@@ -215,6 +133,93 @@ public class Database {
         }
     }
 
+    /**
+     * Stores a teaching assistant in the database.
+     * @param ta The teaching assistant to store.
+     * @return True if successful, false otherwise.
+     */
+    public boolean insertTeachingAssistant(TeachingAssistant ta) {
+        if (!insertPerson(ta, PERSON_TYPE_TA)) {
+            return false;
+        }
+        try {
+            String sql = "INSERT INTO teaching_assistants (person_id) VALUES (?);";
+            PreparedStatement stmt = this.connection.prepareStatement(sql);
+            stmt.setInt(1, ta.getNumber());
+            stmt.execute();
+            return true;
+        } catch (SQLException e) {
+            logger.severe("SQL Exception while inserting TeachingAssistant.\n" + e.getMessage());
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Stores a team in the database, and any persons who do not yet exist.
+     * @param team The team to store.
+     * @param type The type of team that this is.
+     * @param personType The type of people that this team is made of.
+     * @return True if successful, false otherwise.
+     */
+    public boolean insertTeam(Team team, int type, int personType) {
+        try {
+            String sql = "INSERT INTO teams (id, team_type_id) VALUES (?, ?);";
+            PreparedStatement stmt = this.connection.prepareStatement(sql);
+            stmt.setInt(1, team.getId());
+            stmt.setInt(2, type);
+            if (stmt.execute()) {
+                for (Person p : team.getMembers()) {
+                    this.insertPerson(p, personType);
+                    String sqlMembers = "INSERT INTO team_members (team_id, person_id) VALUES (?, ?);";
+                    PreparedStatement stmtMembers = this.connection.prepareStatement(sqlMembers);
+                    stmtMembers.setInt(1, team.getId());
+                    stmtMembers.setInt(2, p.getNumber());
+                    stmtMembers.execute();
+                }
+            }
+            return true;
+        } catch (SQLException e) {
+            logger.severe("SQLException while inserting team: " + team + '\n' + e.getMessage());
+            return false;
+        }
+    }
+
+    /**
+     * Stores a student team in the database.
+     * @param team The team to store.
+     * @return True if successful, false otherwise.
+     */
+    public boolean insertStudentTeam(StudentTeam team) {
+        if (!this.insertTeam(team, TEAM_TYPE_STUDENT, PERSON_TYPE_STUDENT)) {
+            return false;
+        }
+        try {
+            String sql = "INSERT INTO student_teams (team_id, repository_name, teaching_assistant_team_id) VALUES (?, ?, ?);";
+            PreparedStatement stmt = this.connection.prepareStatement(sql);
+            stmt.setInt(1, team.getId());
+            stmt.setString(2, (team.getRepository() == null) ? null : team.getRepository().getName());
+            stmt.setInt(3, (team.getTaTeam() == null) ? TEAM_NONE : team.getTaTeam().getId());
+            return stmt.execute();
+        } catch (SQLException e) {
+            logger.severe("SQLException while inserting student team: " + team + '\n' + e.getMessage());
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    /**
+     * Stores a list of student teams in the database.
+     * @param teams The list of teams to store.
+     * @return True if successful, or false if an error occurred.
+     */
+    public boolean storeStudentTeams(List<StudentTeam> teams) {
+        for (StudentTeam team : teams) {
+            this.insertStudentTeam(team);
+        }
+        return true;
+    }
+
     /**
      * Retrieves a list of preferred partners that each student has set.
      * @param studentId The student id to search by.

src/main/java/nl/andrewlalis/model/error/Error.java

@@ -0,0 +1,45 @@
+package nl.andrewlalis.model.error;
+
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ * Represents an error that occurs, but does not stop the application while running. Different from an exception in that
+ * errors are meant to be added to a list and processed at a later time, and not hinder the operations in the present.
+ */
+public class Error {
+
+    /**
+     * The time at which this error occurred.
+     */
+    private long timestamp;
+
+    /**
+     * The severity of the error.
+     */
+    private Severity severity;
+
+    /**
+     * A custom error message generated at the time of the error.
+     */
+    private String message;
+
+    /**
+     * Constructs a new Error with a severity and message.
+     * @param severity The severity of the message.
+     * @param message The custom generated error message for this error.
+     */
+    public Error(Severity severity, String message) {
+        this.timestamp = System.currentTimeMillis();
+        this.severity = severity;
+        this.message = message;
+    }
+
+    @Override
+    public String toString() {
+        DateFormat df = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
+        String dateString = df.format(new Date(this.timestamp));
+        return dateString + ' ' + this.severity.toString() + ": " + this.message;
+    }
+}

src/main/java/nl/andrewlalis/model/error/Severity.java

@@ -0,0 +1,12 @@
+package nl.andrewlalis.model.error;
+
+/**
+ * Represents the different levels of severity for errors.
+ */
+public enum Severity {
+    CRITICAL,       // Anything which happens and could have serious side-effects or massive implications system-wide.
+    HIGH,           // Errors which should be at the top of priority to sort out after a procedure is executed.
+    MEDIUM,         // Medium errors are, as the name implies, of a medium priority.
+    LOW,            // Low severity errors are the smallest errors that should be processed soon to avoid issues.
+    MINOR           // Minor errors are so insignificant that they may not even require user intervention.
+}

src/main/java/nl/andrewlalis/ui/control/OutputTextHandler.java

@@ -6,6 +6,7 @@ import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.logging.Handler;
+import java.util.logging.Level;
 import java.util.logging.LogRecord;
 
 /**
@@ -26,11 +27,19 @@ public class OutputTextHandler extends Handler {
     public void publish(LogRecord logRecord) {
         DateFormat df = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
         String dateString = df.format(new Date(logRecord.getMillis()));
-        String sourceLocationString = logRecord.getSourceClassName() + "::" + logRecord.getSourceMethodName();
         this.outputPane.printStyled(dateString + ' ', "gray_italics");
-        this.outputPane.printStyled(logRecord.getLevel().getName() + ": ", "bold");
+        String style = "default";
-        this.outputPane.printStyled(sourceLocationString + "\n\t", "bold");
+        Level level = logRecord.getLevel();
-        this.outputPane.printStyled(logRecord.getMessage() + '\n', "smaller");
+        if (level == Level.SEVERE) {
+            style = "error_red";
+        } else if (level == Level.FINE
+        || level == Level.FINER
+        || level == Level.FINEST) {
+            style = "smaller";
+        } else if (level == Level.WARNING) {
+            style = "warning_orange";
+        }
+        this.outputPane.printStyled(logRecord.getMessage() + '\n', style);
     }
 
     @Override

src/main/java/nl/andrewlalis/ui/control/command/CommandExecutor.java

@@ -63,8 +63,10 @@ public class CommandExecutor {
      */
     public void executeCommand(String commandName, String[] args) {
         if (this.commands.containsKey(commandName)) {
-            logger.info(commandName + ' ' + Arrays.toString(args));
+            logger.info("Command executed: " + commandName + ' ' + Arrays.toString(args));
-            this.commands.get(commandName).execute(args);
+            if (!this.commands.get(commandName).execute(args)) {
+                logger.warning("Command did not execute successfully.");
+            }
         } else {
             logger.warning(commandName + " is not a valid command.");
         }

src/main/java/nl/andrewlalis/ui/control/command/executables/ArchiveRepos.java

@@ -2,8 +2,6 @@ package nl.andrewlalis.ui.control.command.executables;
 
 import nl.andrewlalis.git_api.GithubManager;
 
-import java.io.IOException;
-
 /**
  * Represents the action archive all repositories with a certain substring in their name.
  * It takes the following arguments:
@@ -17,12 +15,7 @@ public class ArchiveRepos extends GithubExecutable {
         if (args.length < 1) {
             return false;
         }
-        try {
+        manager.archiveAllRepositories(args[0]);
-            manager.archiveAllRepositories(args[0]);
+        return true;
-            return true;
-        } catch (IOException e) {
-            e.printStackTrace();
-            return false;
-        }
     }
 }

src/main/java/nl/andrewlalis/ui/control/command/executables/DefineTaTeams.java

@@ -1,13 +1,30 @@
 package nl.andrewlalis.ui.control.command.executables;
 
 import nl.andrewlalis.git_api.GithubManager;
+import nl.andrewlalis.ui.view.dialogs.DefineTaTeamsDialog;
+import nl.andrewlalis.ui.view.InitializerApp;
 
-
+/**
+ * This executable is slightly different from the others, in that it opens up a user interface to make editing TA teams
+ * possible. Therefore, executing this command opens the 'DefineTaTeams' dialog, within which a user can make changes
+ * to the TA teams in the organization.
+ */
 public class DefineTaTeams extends GithubExecutable {
 
+    /**
+     * An instance of the main application frame; used when constructing the dialog.
+     */
+    private InitializerApp app;
+
+    public DefineTaTeams(InitializerApp app) {
+        this.app = app;
+    }
+
     @Override
     protected boolean executeWithManager(GithubManager manager, String[] args) {
-        return false;
+        DefineTaTeamsDialog dialog = new DefineTaTeamsDialog(this.app, manager);
+        dialog.begin();
+        return true;
     }
 
 }

src/main/java/nl/andrewlalis/ui/control/command/executables/DelegateStudentTeams.java

@@ -0,0 +1,73 @@
+package nl.andrewlalis.ui.control.command.executables;
+
+import nl.andrewlalis.git_api.GithubManager;
+import nl.andrewlalis.model.StudentTeam;
+import nl.andrewlalis.model.TATeam;
+import nl.andrewlalis.ui.view.InitializerApp;
+import nl.andrewlalis.ui.view.dialogs.delegateStudentTeams.DelegateStudentTeamsDialog;
+
+import javax.swing.*;
+import java.util.List;
+import java.util.Map;
+import java.util.Stack;
+import java.util.concurrent.ThreadLocalRandom;
+import java.util.logging.Logger;
+
+/**
+ * An executable which opens up a dialog to allow a user to delegate how many student teams each TATeam gets to manage,
+ * and actually generate the student repositories using the manager.
+ */
+public class DelegateStudentTeams extends GithubExecutable {
+
+    /**
+     * A reference to the main application frame, used as the parent for the dialog which is shown.
+     */
+    private InitializerApp app;
+
+    /**
+     * The logger for outputting debug info.
+     */
+    private static final Logger logger = Logger.getLogger(DelegateStudentTeams.class.getName());
+    static {
+        logger.setParent(Logger.getGlobal());
+    }
+
+    public DelegateStudentTeams(InitializerApp app) {
+        this.app = app;
+    }
+
+    @Override
+    protected boolean executeWithManager(GithubManager manager, String[] args) {
+        if (this.app.getOrganization().getStudentTeams().isEmpty()) {
+            JOptionPane.showMessageDialog(this.app, "There are no student teams! Please read some from a CSV file first.", "No Student Teams", JOptionPane.ERROR_MESSAGE);
+            return false;
+        }
+        DelegateStudentTeamsDialog dialog = new DelegateStudentTeamsDialog(this.app, manager);
+        dialog.begin();
+
+        if (dialog.isSuccessful()) {
+            Map<TATeam, Integer> results = dialog.getResult();
+            List<StudentTeam> teams = this.app.getOrganization().getStudentTeams();
+            int initialTeamsSize = teams.size();
+            Stack<StudentTeam> teamsStack = new Stack<>();
+            // Randomize the ordering of the student teams here.
+            for (int i = 0; i < initialTeamsSize; i++) {
+                teamsStack.push(teams.remove(ThreadLocalRandom.current().nextInt(0, teams.size())));
+            }
+
+            for (Map.Entry<TATeam, Integer> entry : results.entrySet()) {
+                TATeam team = entry.getKey();
+                logger.fine("Team: " + team.getName() + " has " + entry.getValue() + " student teams.");
+                for (int i = 0; i < entry.getValue(); i++) {
+                    team.addStudentTeam(teamsStack.pop());
+                }
+                this.app.getOrganization().getTaTeams().add(team);
+            }
+        } else {
+            return false;
+        }
+
+        return true;
+    }
+
+}

src/main/java/nl/andrewlalis/ui/control/command/executables/DeleteRepos.java

@@ -0,0 +1,17 @@
+package nl.andrewlalis.ui.control.command.executables;
+
+import nl.andrewlalis.git_api.GithubManager;
+
+/**
+ * Deletes all repositories with a given substring.
+ */
+public class DeleteRepos extends GithubExecutable {
+    @Override
+    protected boolean executeWithManager(GithubManager manager, String[] args) {
+        if (args.length < 1) {
+            return false;
+        }
+        manager.deleteAllRepositories(args[0]);
+        return true;
+    }
+}

src/main/java/nl/andrewlalis/ui/control/command/executables/GenerateStudentRepos.java

@@ -1,12 +0,0 @@
-package nl.andrewlalis.ui.control.command.executables;
-
-import nl.andrewlalis.git_api.GithubManager;
-
-public class GenerateStudentRepos extends GithubExecutable {
-
-    @Override
-    protected boolean executeWithManager(GithubManager manager, String[] args) {
-        return false;
-    }
-
-}

src/main/java/nl/andrewlalis/ui/control/command/executables/GithubExecutable.java

@@ -10,6 +10,9 @@ import nl.andrewlalis.ui.control.command.Executable;
  * Requires two arguments:
  * 1. The organization name.
  * 2. The organization's access token.
+ *
+ * Any additional arguments are added to a new String[] array which is passed along to child classes, so that they do
+ * not have to filter out the mandatory first two arguments.
  */
 public abstract class GithubExecutable implements Executable {
 

src/main/java/nl/andrewlalis/ui/control/command/executables/ListErrors.java

@@ -0,0 +1,44 @@
+package nl.andrewlalis.ui.control.command.executables;
+
+import nl.andrewlalis.model.error.Error;
+import nl.andrewlalis.ui.control.command.Executable;
+import nl.andrewlalis.ui.view.InitializerApp;
+
+import java.util.logging.Logger;
+
+/**
+ * This executable lists all errors that have occurred so far in the runtime of the program, and have not been resolved.
+ */
+public class ListErrors implements Executable {
+
+    /**
+     * A reference to the current application.
+     */
+    private InitializerApp app;
+
+    /**
+     * The logger for outputting debug info.
+     */
+    private static final Logger logger = Logger.getLogger(ListErrors.class.getName());
+    static {
+        logger.setParent(Logger.getGlobal());
+    }
+
+    public ListErrors(InitializerApp app) {
+        this.app = app;
+    }
+
+    @Override
+    public boolean execute(String[] args) {
+        StringBuilder sb = new StringBuilder("Runtime Errors:\n");
+        if (this.app.getOrganization().getErrors().isEmpty()) {
+            sb.append("None");
+        }
+        for (Error error : this.app.getOrganization().getErrors()) {
+            sb.append(error).append('\n');
+        }
+        logger.info(sb.toString());
+        return true;
+    }
+
+}

src/main/java/nl/andrewlalis/ui/control/command/executables/ReadStudentsFile.java

@@ -1,32 +1,31 @@
 package nl.andrewlalis.ui.control.command.executables;
 
 import nl.andrewlalis.model.StudentTeam;
-import nl.andrewlalis.model.database.Database;
 import nl.andrewlalis.ui.control.command.Executable;
+import nl.andrewlalis.ui.view.InitializerApp;
 import nl.andrewlalis.util.FileUtils;
 
 import java.util.List;
 
 /**
  * Execute this class to read students from a supplied filename and teamsize, and store their
- * information in the database.
+ * information in the application's organization model.
  * Requires the following arguments:
  *
  * 1. filename
  * 2. teamsize
  */
-public class ReadStudentsFileToDB implements Executable {
+public class ReadStudentsFile implements Executable {
 
     /**
-     * The database used to store the students.
+     * A reference to the current application, which contains the model for storing information.
      */
-    private Database db;
+    private InitializerApp app;
 
-    public ReadStudentsFileToDB(Database db) {
+    public ReadStudentsFile(InitializerApp app) {
-        this.db = db;
+        this.app = app;
     }
 
-
     @Override
     public boolean execute(String[] args) {
         if (args.length < 2) {
@@ -38,6 +37,7 @@ public class ReadStudentsFileToDB implements Executable {
         if (teams == null) {
             return false;
         }
-        return this.db.storeStudentTeams(teams);
+        this.app.getOrganization().setStudentTeams(teams);
+        return true;
     }
 }

src/main/java/nl/andrewlalis/ui/control/command/executables/SetupStudentRepos.java

@@ -0,0 +1,37 @@
+package nl.andrewlalis.ui.control.command.executables;
+
+import nl.andrewlalis.git_api.GithubManager;
+import nl.andrewlalis.model.StudentTeam;
+import nl.andrewlalis.model.TATeam;
+import nl.andrewlalis.ui.view.InitializerApp;
+
+import java.util.List;
+
+/**
+ * This executable, when run, sets up all student repositories.
+ */
+public class SetupStudentRepos extends GithubExecutable {
+
+    /**
+     * A reference to the current application.
+     */
+    private InitializerApp app;
+
+    public SetupStudentRepos(InitializerApp app) {
+        this.app = app;
+    }
+
+    @Override
+    protected boolean executeWithManager(GithubManager manager, String[] args) {
+        if (args.length < 1) {
+            return false;
+        }
+        List<TATeam> taTeams = this.app.getOrganization().getTaTeams();
+        for (TATeam team : taTeams) {
+            for (StudentTeam studentTeam : team.getStudentTeams()) {
+                manager.setupStudentRepo(studentTeam, team, args[0]);
+            }
+        }
+        return true;
+    }
+}

src/main/java/nl/andrewlalis/ui/control/listeners/ArchiveAllListener.java

@@ -19,7 +19,7 @@ public class ArchiveAllListener extends ExecutableListener {
     public void actionPerformed(ActionEvent actionEvent) {
         String response = JOptionPane.showInputDialog(this.app, "Enter a substring to archive repositories by.", "Enter a substring", JOptionPane.QUESTION_MESSAGE);
         if (response != null) {
-            this.executor.executeCommand("archiveall", new String[]{
+            this.executor.executeCommand("archive_all", new String[]{
                     this.app.getOrganizationName(),
                     this.app.getAccessToken(),
                     response

src/main/java/nl/andrewlalis/ui/control/listeners/DefineTaTeamsListener.java

@@ -5,6 +5,9 @@ import nl.andrewlalis.ui.view.InitializerApp;
 
 import java.awt.event.ActionEvent;
 
+/**
+ * Listens for when the user wants to open the 'DefineTaTeams' dialog.
+ */
 public class DefineTaTeamsListener extends ExecutableListener {
 
     public DefineTaTeamsListener(CommandExecutor executor, InitializerApp app) {
@@ -13,6 +16,9 @@ public class DefineTaTeamsListener extends ExecutableListener {
 
     @Override
     public void actionPerformed(ActionEvent actionEvent) {
-
+        this.executor.executeCommand("define_ta_teams", new String[]{
+                this.app.getOrganizationName(),
+                this.app.getAccessToken()
+        });
     }
 }

src/main/java/nl/andrewlalis/ui/control/listeners/DelegateStudentTeamsListener.java

@@ -0,0 +1,24 @@
+package nl.andrewlalis.ui.control.listeners;
+
+import nl.andrewlalis.ui.control.command.CommandExecutor;
+import nl.andrewlalis.ui.view.InitializerApp;
+
+import java.awt.event.ActionEvent;
+
+/**
+ * Listens for when a user performs an action to open the dialog to delegate student teams amongst the TA teams.
+ */
+public class DelegateStudentTeamsListener extends ExecutableListener {
+
+    public DelegateStudentTeamsListener(CommandExecutor executor, InitializerApp app) {
+        super(executor, app);
+    }
+
+    @Override
+    public void actionPerformed(ActionEvent actionEvent) {
+        this.executor.executeCommand("delegate_student_teams", new String[]{
+                app.getOrganizationName(),
+                app.getAccessToken()
+        });
+    }
+}

src/main/java/nl/andrewlalis/ui/control/listeners/DeleteReposListener.java

@@ -0,0 +1,32 @@
+package nl.andrewlalis.ui.control.listeners;
+
+import nl.andrewlalis.ui.control.command.CommandExecutor;
+import nl.andrewlalis.ui.view.InitializerApp;
+
+import javax.swing.*;
+import java.awt.event.ActionEvent;
+
+/**
+ * A listener for when the user wants to delete repositories.
+ */
+public class DeleteReposListener extends ExecutableListener {
+
+    public DeleteReposListener(CommandExecutor executor, InitializerApp app) {
+        super(executor, app);
+    }
+
+    @Override
+    public void actionPerformed(ActionEvent actionEvent) {
+        String input = JOptionPane.showInputDialog(this.app, "Please enter a string which, if a repository contains it, results in deleting the repository.", "Enter Substing", JOptionPane.QUESTION_MESSAGE);
+        if (input != null) {
+            int decision = JOptionPane.showConfirmDialog(null, "Are you sure you want to delete all repositories that contain \"" + "\" in their name?", "Delete Repositories", JOptionPane.YES_NO_OPTION);
+            if (decision == JOptionPane.YES_OPTION) {
+                this.executor.executeCommand("delete_repos", new String[]{
+                        app.getOrganizationName(),
+                        app.getAccessToken(),
+                        input
+                });
+            }
+        }
+    }
+}

src/main/java/nl/andrewlalis/ui/control/listeners/GenerateAssignmentsRepoListener.java

@@ -22,7 +22,7 @@ public class GenerateAssignmentsRepoListener extends ExecutableListener {
             String description = JOptionPane.showInputDialog(this.app, "Enter a description for the repository.", "Repository Description", JOptionPane.QUESTION_MESSAGE);
             String teamName = JOptionPane.showInputDialog(this.app, "Enter the name of the TA team containing all teaching assistants.", "TA Team Name", JOptionPane.QUESTION_MESSAGE);
             if (teamName != null) {
-                this.executor.executeCommand("generateassignments", new String[]{
+                this.executor.executeCommand("generate_assignments", new String[]{
                         this.app.getOrganizationName(),
                         this.app.getAccessToken(),
                         repoName,

src/main/java/nl/andrewlalis/ui/control/listeners/ReadStudentsFileListener.java

@@ -4,10 +4,15 @@ import nl.andrewlalis.ui.control.command.CommandExecutor;
 import nl.andrewlalis.ui.view.InitializerApp;
 
 import javax.swing.*;
+import javax.swing.filechooser.FileFilter;
 import java.awt.event.ActionEvent;
+import java.io.File;
 
 /**
  * Listens for when the user performs an action to read all students from a file, and output the contents to a database.
+ *
+ * Because filename and team size are not provided via arguments when a user clicks on a button, these are obtained via
+ * a JFileChooser and JOptionPane input dialog. If all inputs are valid, then the command is executed.
  */
 public class ReadStudentsFileListener extends ExecutableListener {
 
@@ -18,13 +23,28 @@ public class ReadStudentsFileListener extends ExecutableListener {
     @Override
     public void actionPerformed(ActionEvent actionEvent) {
         JFileChooser chooser = new JFileChooser();
+        chooser.setAcceptAllFileFilterUsed(false);
+        chooser.addChoosableFileFilter(new FileFilter() {
+            @Override
+            public boolean accept(File file) {
+                if (file.isDirectory()) {
+                    return true;
+                }
+                return file.getName().toLowerCase().endsWith(".csv");
+            }
+
+            @Override
+            public String getDescription() {
+                return "CSV Files (*.csv)";
+            }
+        });
         int fileResponse = chooser.showOpenDialog(this.app);
 
         if (fileResponse == JFileChooser.APPROVE_OPTION) {
             String teamSizeString = JOptionPane.showInputDialog(this.app, "Enter the student team size.", "Team Size", JOptionPane.QUESTION_MESSAGE);
             if (teamSizeString != null) {
-                this.executor.executeCommand("readstudents", new String[]{
+                this.executor.executeCommand("read_students", new String[]{
-                        chooser.getSelectedFile().getName(),
+                        chooser.getSelectedFile().getAbsolutePath(),
                         teamSizeString
                 });
             }

src/main/java/nl/andrewlalis/ui/view/InitializerApp.java

@@ -1,15 +1,13 @@
 package nl.andrewlalis.ui.view;
 
+import nl.andrewlalis.model.Organization;
 import nl.andrewlalis.ui.control.OutputTextHandler;
 import nl.andrewlalis.ui.control.command.CommandExecutor;
-import nl.andrewlalis.ui.control.command.executables.ArchiveRepos;
+import nl.andrewlalis.ui.control.listeners.*;
-import nl.andrewlalis.ui.control.listeners.ArchiveAllListener;
-import nl.andrewlalis.ui.control.listeners.CommandFieldKeyListener;
-import nl.andrewlalis.ui.control.listeners.GenerateAssignmentsRepoListener;
-import nl.andrewlalis.ui.control.listeners.ReadStudentsFileListener;
 
 import javax.swing.*;
 import java.awt.*;
+import java.awt.event.ActionListener;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -36,15 +34,31 @@ public class InitializerApp extends JFrame {
     private JTextField organizationField = new JTextField();
     private JTextField accessTokenField = new JTextField();
 
+    private JCheckBox privateCheckbox = new JCheckBox("Private");
+
     /**
      * The executor responsible for performing meaningful actions.
      */
     private CommandExecutor executor;
 
+    /**
+     * The organization object, which contains all important state information.
+     */
+    private Organization organization;
+
+    /**
+     * Constructs a new instance of the main application frame, with both an executor, and organization model.
+     *
+     * @param executor The command executor, which is passed to any action listeners, so that buttons in this interface
+     *                 may execute commands in the same way that the command line can.
+     */
     public InitializerApp(CommandExecutor executor) {
         this.executor = executor;
+        this.organization = new Organization();
 
         // UI initialization.
+        ImageIcon icon = new ImageIcon(getClass().getResource("/image/icon.png"));
+        this.setIconImage(icon.getImage());
         this.initFrame();
     }
 
@@ -52,7 +66,6 @@ public class InitializerApp extends JFrame {
      * Begins showing the application
      */
     public void begin() {
-        this.pack();
         this.setVisible(true);
     }
 
@@ -81,6 +94,8 @@ public class InitializerApp extends JFrame {
         mainPanel.add(this.initGithubManagerPanel(), BorderLayout.EAST);
 
         this.setContentPane(mainPanel);
+        this.pack();
+        this.setLocationRelativeTo(null);
 
         this.initLoggingHandler();
     }
@@ -100,6 +115,8 @@ public class InitializerApp extends JFrame {
         this.organizationField.setText("InitializerTesting");
         infoInputPanel.add(generateTextFieldPanel("Access Token", this.accessTokenField));
         this.accessTokenField.setText("haha get your own");
+        infoInputPanel.add(this.privateCheckbox);
+        this.privateCheckbox.disable();
 
         githubManagerPanel.add(infoInputPanel, BorderLayout.NORTH);
 
@@ -107,22 +124,23 @@ public class InitializerApp extends JFrame {
         JPanel commonActionsPanel = new JPanel();
         commonActionsPanel.setLayout(new BoxLayout(commonActionsPanel, BoxLayout.PAGE_AXIS));
 
-        JButton archiveAllButton = new JButton("Archive All");
+        commonActionsPanel.add(this.generateButtonPanel("Archive All", new ArchiveAllListener(this.executor, this)));
-        archiveAllButton.addActionListener(new ArchiveAllListener(this.executor, this));
+        commonActionsPanel.add(this.generateButtonPanel("Read Students File", new ReadStudentsFileListener(this.executor, this)));
-        commonActionsPanel.add(archiveAllButton);
+        commonActionsPanel.add(this.generateButtonPanel("Delegate Student Teams", new DelegateStudentTeamsListener(this.executor, this)));
+        commonActionsPanel.add(this.generateButtonPanel("Generate Assignments Repo", new GenerateAssignmentsRepoListener(this.executor, this)));
 
-        JButton generateStudentTeamsButton = new JButton("Read teams from file");
+        // TODO: Enable this once the define teams dialog is complete.
-        generateStudentTeamsButton.addActionListener(new ReadStudentsFileListener(this.executor, this));
+//        JButton defineTaTeamsButton = new JButton("Define TA Teams");
-        commonActionsPanel.add(generateStudentTeamsButton);
+//        defineTaTeamsButton.addActionListener(new DefineTaTeamsListener(this.executor, this));
+//        commonActionsPanel.add(f);
 
-        JButton generateAssignmentsRepoButton = new JButton("Generate Assignments Repo");
+        commonActionsPanel.add(this.generateButtonPanel("Delete Repos", new DeleteReposListener(this.executor, this)));
-        generateAssignmentsRepoButton.addActionListener(new GenerateAssignmentsRepoListener(this.executor, this));
-        commonActionsPanel.add(generateAssignmentsRepoButton);
 
-        JButton defineTaTeamsButton = new JButton("Define TA Teams");
+        // Extra panel to push buttons to the top.
-        commonActionsPanel.add(defineTaTeamsButton);
+        JPanel buttonAlignmentPanel = new JPanel(new BorderLayout());
+        buttonAlignmentPanel.add(commonActionsPanel, BorderLayout.NORTH);
 
-        githubManagerPanel.add(commonActionsPanel, BorderLayout.CENTER);
+        githubManagerPanel.add(buttonAlignmentPanel, BorderLayout.CENTER);
 
         return githubManagerPanel;
     }
@@ -178,6 +196,20 @@ public class InitializerApp extends JFrame {
         return newPanel;
     }
 
+    /**
+     * Generates a button with an attached action listener.
+     * @param buttonText The text to display on the button.
+     * @param listener The listener to attach to the button.
+     * @return A BorderLayout JPanel which contains the button in the CENTER location.
+     */
+    private JPanel generateButtonPanel(String buttonText, ActionListener listener) {
+        JPanel panel = new JPanel(new BorderLayout());
+        JButton button = new JButton(buttonText);
+        button.addActionListener(listener);
+        panel.add(button, BorderLayout.CENTER);
+        return panel;
+    }
+
     /**
      * Gets the organization name entered in the relevant field.
      * @return The organization name the user has entered.
@@ -194,4 +226,20 @@ public class InitializerApp extends JFrame {
         return this.accessTokenField.getText().trim();
     }
 
+    /**
+     * Gets whether or not the 'private' checkbox is selected.
+     * @return True if the user wishes for repositories to be made private, or false otherwise.
+     */
+    public boolean isPrivateChecked() {
+        return this.privateCheckbox.isSelected();
+    }
+
+    public Organization getOrganization() {
+        return this.organization;
+    }
+
+    public void setAccessToken(String accessToken) {
+        this.accessTokenField.setText(accessToken);
+    }
+
 }

src/main/java/nl/andrewlalis/ui/view/OutputTextPane.java

@@ -1,10 +1,7 @@
 package nl.andrewlalis.ui.view;
 
 import javax.swing.*;
-import javax.swing.text.BadLocationException;
+import javax.swing.text.*;
-import javax.swing.text.Style;
-import javax.swing.text.StyleConstants;
-import javax.swing.text.StyledDocument;
 import java.awt.*;
 import java.util.HashMap;
 import java.util.Map;
@@ -26,6 +23,9 @@ public class OutputTextPane extends JTextPane {
         this.initStyles();
         this.setEditable(false);
         this.setAutoscrolls(true);
+
+        DefaultCaret caret = (DefaultCaret) this.getCaret();
+        caret.setUpdatePolicy(DefaultCaret.ALWAYS_UPDATE);
     }
 
     private void initStyles() {
@@ -47,6 +47,14 @@ public class OutputTextPane extends JTextPane {
         Style smaller = this.addStyle("smaller", defaultStyle);
         smaller.addAttribute(StyleConstants.FontSize, 11);
         this.styles.put("smaller", smaller);
+
+        Style errorRed = this.addStyle("error_red", bold);
+        errorRed.addAttribute(StyleConstants.Foreground, new Color(255, 0, 0));
+        this.styles.put("error_red", errorRed);
+
+        Style warningOrange = this.addStyle("warning_orange", defaultStyle);
+        warningOrange.addAttribute(StyleConstants.Foreground, new Color(255, 127, 0));
+        this.styles.put("warning_orange", warningOrange);
     }
 
     /**

src/main/java/nl/andrewlalis/ui/view/dialogs/DefineTaTeamsDialog.java

@@ -0,0 +1,103 @@
+package nl.andrewlalis.ui.view.dialogs;
+
+import nl.andrewlalis.git_api.GithubManager;
+import nl.andrewlalis.ui.view.InitializerApp;
+import nl.andrewlalis.ui.view.list_models.TATeamListCellRenderer;
+import nl.andrewlalis.ui.view.list_models.TATeamListModel;
+import nl.andrewlalis.ui.view.list_models.TeachingAssistantListCellRenderer;
+import nl.andrewlalis.ui.view.list_models.TeachingAssistantsListModel;
+
+import javax.swing.*;
+import java.awt.*;
+
+/**
+ * This class represents a pop-up dialog that appears when the user wants to manipulate teams in the organization. With
+ * this dialog, it will be possible to do the following:
+ *  - View all members of the organization.
+ *  - View all teams in the organization.
+ *  - Create new teams from a selection of members.
+ *  - Invite new members to the organization.
+ */
+public class DefineTaTeamsDialog extends JDialog {
+
+    private static final Dimension LIST_SIZE = new Dimension(200, -1);
+
+    /**
+     * The manager used to manipulate the organization.
+     */
+    private GithubManager manager;
+
+    public DefineTaTeamsDialog(InitializerApp parentApp, GithubManager manager) {
+        super(parentApp, "Define TA Teams", true);
+        this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
+        this.manager = manager;
+
+        this.initUI();
+    }
+
+    /**
+     * Sets the dialog as visible.
+     */
+    public void begin() {
+        this.setVisible(true);
+    }
+
+    /**
+     * Constructs all UI components.
+     */
+    private void initUI() {
+        JPanel mainPanel = new JPanel(new BorderLayout());
+        mainPanel.add(new JLabel("Hello world", SwingConstants.CENTER), BorderLayout.NORTH);
+
+        mainPanel.add(this.initMembersPanel(), BorderLayout.WEST);
+        mainPanel.add(this.initTeamsPanel(), BorderLayout.EAST);
+
+        this.setContentPane(mainPanel);
+        this.setPreferredSize(new Dimension(600, 800));
+        this.pack();
+        this.setLocationRelativeTo(null);
+    }
+
+    /**
+     * @return A JPanel containing the list of teams in the organization.
+     */
+    private JPanel initTeamsPanel() {
+        JPanel teamsPanel = new JPanel(new BorderLayout());
+        teamsPanel.add(new JLabel("Teams", SwingConstants.CENTER), BorderLayout.NORTH);
+
+        ListModel model = new TATeamListModel(this.manager.getTeams());
+        JList teamsList = new JList(model);
+        teamsList.setCellRenderer(new TATeamListCellRenderer());
+        teamsList.setPreferredSize(LIST_SIZE);
+        teamsList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
+
+        JScrollPane teamsListScrollPane = new JScrollPane(teamsList);
+        teamsListScrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
+        teamsListScrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
+        teamsPanel.add(teamsListScrollPane, BorderLayout.CENTER);
+
+        return teamsPanel;
+    }
+
+    /**
+     * @return A JPanel containing the list of members of the organization.
+     */
+    private JPanel initMembersPanel() {
+        JPanel membersPanel = new JPanel(new BorderLayout());
+        membersPanel.add(new JLabel("Members", SwingConstants.CENTER), BorderLayout.NORTH);
+
+        ListModel model = new TeachingAssistantsListModel(this.manager.getMembers());
+        JList membersList = new JList();
+        membersList.setModel(model);
+        membersList.setCellRenderer(new TeachingAssistantListCellRenderer());
+        membersList.setPreferredSize(LIST_SIZE);
+        membersList.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
+
+        JScrollPane membersListScrollPane = new JScrollPane(membersList);
+        membersListScrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
+        membersListScrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);
+        membersPanel.add(membersListScrollPane, BorderLayout.CENTER);
+
+        return membersPanel;
+    }
+}

src/main/java/nl/andrewlalis/ui/view/dialogs/delegateStudentTeams/DelegateStudentTeamsDialog.java

@@ -0,0 +1,174 @@
+package nl.andrewlalis.ui.view.dialogs.delegateStudentTeams;
+
+import nl.andrewlalis.git_api.GithubManager;
+import nl.andrewlalis.model.TATeam;
+import nl.andrewlalis.ui.view.InitializerApp;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * This dialog shows a simple list of all teaching assistant teams, with a JSpinner next to the name, so that a user can
+ * set how many student teams each teaching assistant team would like to manage.
+ */
+public class DelegateStudentTeamsDialog extends JDialog {
+
+    /**
+     * The manager used to generate repositories.
+     */
+    private GithubManager manager;
+
+    /**
+     * Indicates how many student teams do not have an assigned team.
+     */
+    private NumberIndicatorField unmatchedStudentsCounter;
+
+    /**
+     * A list of JSpinner objects linked to specific team members.
+     */
+    private List<TaTeamSpinner> teamSpinners;
+
+    /**
+     * A number indicating the total number of student teams.
+     */
+    private final int totalStudentTeamsCount;
+
+    /**
+     * A variable used to check if the result of this dialog was successful.
+     */
+    private boolean successful;
+
+    public DelegateStudentTeamsDialog(InitializerApp parentApp, GithubManager manager) {
+        super(parentApp, "Delegate Student Teams", true);
+        this.manager = manager;
+        this.teamSpinners = new ArrayList<>();
+        this.totalStudentTeamsCount = parentApp.getOrganization().getStudentTeams().size();
+        this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
+
+        this.initUI();
+    }
+
+    /**
+     * Begins showing the dialog.
+     */
+    public void begin() {
+        this.setVisible(true);
+    }
+
+    /**
+     * Prepares the user interface components.
+     */
+    private void initUI() {
+        JPanel mainPanel = new JPanel(new BorderLayout());
+        mainPanel.add(this.generateTopPanel(), BorderLayout.NORTH);
+        mainPanel.add(this.generateSpinnersPanel(), BorderLayout.CENTER);
+        mainPanel.add(this.generateSubmitPanel(), BorderLayout.SOUTH);
+
+        this.setContentPane(mainPanel);
+        this.pack();
+        this.setLocationRelativeTo(null);
+    }
+
+    /**
+     * @return A JPanel containing the top-most counter of how many student teams are unassigned, and a small label.
+     */
+    private JPanel generateTopPanel() {
+        JPanel panel = new JPanel(new BorderLayout());
+        panel.add(new JLabel("Unassigned teams: "), BorderLayout.CENTER);
+        this.unmatchedStudentsCounter = new NumberIndicatorField(this.totalStudentTeamsCount);
+        panel.add(this.unmatchedStudentsCounter, BorderLayout.EAST);
+        panel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
+        return panel;
+    }
+
+    private JPanel generateSpinnersPanel() {
+        JPanel spinnersPanel = new JPanel();
+        spinnersPanel.setLayout(new BoxLayout(spinnersPanel, BoxLayout.PAGE_AXIS));
+        List<TATeam> taTeams = this.manager.getTeams();
+        for (TATeam team : taTeams) {
+            spinnersPanel.add(this.generateTeamSpinnerPanel(team));
+        }
+        return spinnersPanel;
+    }
+
+    /**
+     * Generates a panel containing a label and JSpinner for a particular TATeam. Also adds a change listener which
+     * makes sure that the total number of student teams given to TATeams never exceeds the total.
+     * @param team The team to link to this panel.
+     * @return The JPanel created.
+     */
+    private JPanel generateTeamSpinnerPanel(TATeam team) {
+        JPanel panel = new JPanel(new BorderLayout());
+        JLabel teamLabel = new JLabel(team.getName());
+        teamLabel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
+        panel.add(teamLabel, BorderLayout.WEST);
+        TaTeamSpinner spinner = new TaTeamSpinner(team, this.totalStudentTeamsCount);
+        spinner.addChangeListener(changeEvent -> {
+            JSpinner s = (JSpinner) changeEvent.getSource();
+            int studentTeamsMatched = 0;
+            for (TaTeamSpinner teamSpinner : this.teamSpinners) {
+                studentTeamsMatched += (int)teamSpinner.getValue();
+            }
+            if (this.totalStudentTeamsCount - studentTeamsMatched < 0) {
+                s.setValue(s.getPreviousValue());
+            } else {
+                this.unmatchedStudentsCounter.setValue(this.totalStudentTeamsCount - studentTeamsMatched);
+            }
+        });
+        this.teamSpinners.add(spinner);
+        panel.add(spinner, BorderLayout.EAST);
+        return panel;
+    }
+
+    /**
+     * Creates the panel at the bottom of the dialog which shows the 'okay' and 'cancel' buttons.
+     * @return The JPanel created.
+     */
+    private JPanel generateSubmitPanel() {
+        JPanel panel = new JPanel();
+        JButton okayButton = new JButton("Okay");
+        okayButton.addActionListener(actionEvent -> {
+            if (unmatchedStudentsCounter.getValue() > 0) {
+                JOptionPane.showMessageDialog(getParent(), "There are still teams remaining!", "Not all teams assigned.", JOptionPane.INFORMATION_MESSAGE);
+            } else {
+                successful = true;
+                dispose();
+            }
+        });
+        JButton cancelButton = new JButton("Cancel");
+        cancelButton.addActionListener(actionEvent -> {
+            successful = false;
+            dispose();
+        });
+        panel.add(okayButton);
+        panel.add(cancelButton);
+        return panel;
+    }
+
+    /**
+     * Determines if the user successfully delegated all student teams to TATeams.
+     * @return True if every student team is (theoretically) matched to a TATeam.
+     */
+    public boolean isSuccessful() {
+        return this.successful;
+    }
+
+    /**
+     * Gets a map containing an integer value for every TA team, which represents the number of student teams they will
+     * be responsible for.
+     * @return A map of TATeams and integer values.
+     */
+    public Map<TATeam, Integer> getResult() {
+        Map<TATeam, Integer> results = new HashMap<>();
+        for (TaTeamSpinner spinner : this.teamSpinners) {
+            results.put(spinner.getTeam(), (int) spinner.getValue());
+        }
+        return results;
+    }
+}

src/main/java/nl/andrewlalis/ui/view/dialogs/delegateStudentTeams/NumberIndicatorField.java

@@ -0,0 +1,42 @@
+package nl.andrewlalis.ui.view.dialogs.delegateStudentTeams;
+
+import javax.swing.*;
+
+/**
+ * A custom JTextField which displays an integer value, and can be set and read more efficiently than if one were to
+ * parse back and forth between strings and integers.
+ */
+public class NumberIndicatorField extends JTextField {
+
+    /**
+     * The value currently displayed in the text field.
+     */
+    private int value;
+
+    public NumberIndicatorField(int initialValue) {
+        this.setEditable(false);
+        this.setValue(initialValue);
+    }
+
+    /**
+     * Sets the displayed value to a new integer value.
+     * @param newValue The new value to set.
+     */
+    public void setValue(int newValue) {
+        this.value = newValue;
+        this.setText(String.valueOf(newValue));
+    }
+
+    public void decrement() {
+        this.setValue(this.value - 1);
+    }
+
+    public void increment() {
+        this.setValue(this.value + 1);
+    }
+
+    public int getValue() {
+        return this.value;
+    }
+
+}

src/main/java/nl/andrewlalis/ui/view/dialogs/delegateStudentTeams/TaTeamSpinner.java

@@ -0,0 +1,23 @@
+package nl.andrewlalis.ui.view.dialogs.delegateStudentTeams;
+
+import nl.andrewlalis.model.TATeam;
+
+import javax.swing.*;
+
+/**
+ * A modified JSpinner which keeps track of a TATeam, and also has a default spinner number model in use.
+ */
+public class TaTeamSpinner extends JSpinner {
+
+    private TATeam team;
+
+    public TaTeamSpinner(TATeam team, int max) {
+        super(new SpinnerNumberModel(0, 0, max, 1));
+        ((DefaultEditor) this.getEditor()).getTextField().setEditable(false);
+        this.team = team;
+    }
+
+    public TATeam getTeam() {
+        return this.team;
+    }
+}

src/main/java/nl/andrewlalis/ui/view/list_models/TATeamListCellRenderer.java

@@ -0,0 +1,33 @@
+package nl.andrewlalis.ui.view.list_models;
+
+import nl.andrewlalis.model.TATeam;
+import nl.andrewlalis.model.TeachingAssistant;
+
+import javax.swing.*;
+import java.awt.*;
+
+/**
+ * Determines how list cells are rendered for a list of TATeams. In this case, it shows the team name, and the tooltip
+ * text provides a list of members.
+ */
+public class TATeamListCellRenderer extends DefaultListCellRenderer {
+
+    @Override
+    public Component getListCellRendererComponent(JList<?> jList, Object o, int i, boolean b, boolean b1) {
+        super.getListCellRendererComponent(jList, o, i, b, b1);
+        if (o instanceof TATeam) {
+            TATeam team = (TATeam) o;
+            this.setText(team.getName());
+            StringBuilder sb = new StringBuilder();
+            TeachingAssistant[] teachingAssistants = team.getTeachingAssistants();
+            for (int j = 0; j < teachingAssistants.length; j++) {
+                sb.append(teachingAssistants[j].getGithubUsername());
+                if (j < teachingAssistants.length - 1) {
+                    sb.append('\n');
+                }
+            }
+            this.setToolTipText(sb.toString());
+        }
+        return this;
+    }
+}

src/main/java/nl/andrewlalis/ui/view/list_models/TATeamListModel.java

@@ -0,0 +1,31 @@
+package nl.andrewlalis.ui.view.list_models;
+
+import nl.andrewlalis.model.TATeam;
+
+import javax.swing.*;
+import java.util.List;
+
+/**
+ * A list model for displaying TATeams.
+ */
+public class TATeamListModel extends AbstractListModel {
+
+    /**
+     * A list of teams.
+     */
+    private List<TATeam> teams;
+
+    public TATeamListModel(List<TATeam> taTeams) {
+        this.teams = taTeams;
+    }
+
+    @Override
+    public int getSize() {
+        return this.teams.size();
+    }
+
+    @Override
+    public Object getElementAt(int i) {
+        return this.teams.get(i);
+    }
+}

src/main/java/nl/andrewlalis/ui/view/list_models/TeachingAssistantListCellRenderer.java

@@ -0,0 +1,23 @@
+package nl.andrewlalis.ui.view.list_models;
+
+import nl.andrewlalis.model.TeachingAssistant;
+
+import javax.swing.*;
+import java.awt.*;
+
+/**
+ * Controls what is rendered in a single list cell when displaying a list of TeachingAssistants.
+ */
+public class TeachingAssistantListCellRenderer extends DefaultListCellRenderer {
+
+    @Override
+    public Component getListCellRendererComponent(JList<?> jList, Object o, int i, boolean b, boolean b1) {
+        super.getListCellRendererComponent(jList, o, i, b, b1);
+        if (o instanceof TeachingAssistant) {
+            TeachingAssistant ta = (TeachingAssistant) o;
+            this.setText(ta.getGithubUsername());
+            this.setToolTipText(ta.getName());
+        }
+        return this;
+    }
+}

src/main/java/nl/andrewlalis/ui/view/list_models/TeachingAssistantsListModel.java

@@ -0,0 +1,31 @@
+package nl.andrewlalis.ui.view.list_models;
+
+import nl.andrewlalis.model.TeachingAssistant;
+
+import javax.swing.*;
+import java.util.List;
+
+/**
+ * A list model for displaying a list of teaching assistants as members of an organization.
+ */
+public class TeachingAssistantsListModel extends AbstractListModel {
+
+    /**
+     * The list of teaching assistants which this model uses.
+     */
+    private List<TeachingAssistant> teachingAssistants;
+
+    public TeachingAssistantsListModel(List<TeachingAssistant> teachingAssistants) {
+        this.teachingAssistants = teachingAssistants;
+    }
+
+    @Override
+    public int getSize() {
+        return this.teachingAssistants.size();
+    }
+
+    @Override
+    public Object getElementAt(int i) {
+        return this.teachingAssistants.get(i);
+    }
+}

src/main/java/nl/andrewlalis/util/FileUtils.java

@@ -54,6 +54,7 @@ public class FileUtils {
             return studentTeams;
         } catch (IOException | ArrayIndexOutOfBoundsException e) {
             logger.severe("Unable to generate studentTeams from CSV file, exiting. " + e.getMessage());
+            e.printStackTrace();
             return null;
         }
     }

src/main/java/nl/andrewlalis/util/Logging.java

@@ -11,24 +11,21 @@ public class Logging {
     private static FileHandler outputFile;
     private static SimpleFormatter formatter;
 
-    public static void setup(boolean verbose) throws IOException {
+    public static void setup() {
         Logger logger = Logger.getGlobal();
 
-        outputFile = new FileHandler("log/latest.log");
+        try {
-        formatter = new SimpleFormatter();
+            outputFile = new FileHandler("log/latest.log");
-
+            formatter = new SimpleFormatter();
-        outputFile.setFormatter(formatter);
+            outputFile.setFormatter(formatter);
-        outputFile.setLevel(Level.FINEST);
+            outputFile.setLevel(Level.FINEST);
-
+            logger.addHandler(outputFile);
-        if (verbose) {
+        } catch (IOException e) {
-            Handler systemOut = new ConsoleHandler();
+            logger.warning("Unable to save log to output file.");
-            systemOut.setLevel(Level.ALL);
+            e.printStackTrace();
-
-            logger.addHandler(systemOut);
         }
-        logger.addHandler(outputFile);
-        logger.setLevel(Level.ALL);
 
+        logger.setLevel(Level.ALL);
         Logger.getLogger("").setLevel(Level.OFF);
 
     }

src/main/java/nl/andrewlalis/util/TeamGenerator.java

@@ -2,6 +2,9 @@ package nl.andrewlalis.util;
 
 import nl.andrewlalis.model.Student;
 import nl.andrewlalis.model.StudentTeam;
+import nl.andrewlalis.model.error.Error;
+import nl.andrewlalis.model.error.Severity;
+import nl.andrewlalis.ui.view.InitializerApp;
 import org.apache.commons.csv.CSVFormat;
 import org.apache.commons.csv.CSVRecord;
 
@@ -150,8 +153,18 @@ public class TeamGenerator {
                 }
             }
             Student s = new Student(Integer.parseInt(record.get(3)), record.get(2), record.get(1), record.get(4), preferredIds);
+            if (studentMap.containsValue(s)) {
+                logger.warning("Duplicate entry found for student: " + s + "\nOverwriting previous value.");
+            }
             studentMap.put(s.getNumber(), s);
         }
+
+        // Perform a safety check to ensure all preferred partners are valid students.
+        for (Map.Entry<Integer, Student> entry : studentMap.entrySet()) {
+            // Remove any ids that don't exist in the whole list of students.
+            entry.getValue().getPreferredPartners().removeIf(partnerId -> !studentMap.containsKey(partnerId));
+        }
+        // At this point, all students are valid, and all preferred partners are valid.
         logger.fine("Read " + studentMap.size() + " students from records.");
         return studentMap;
     }

src/main/resources/sql/table_init.sql

@@ -16,12 +16,18 @@ CREATE TABLE IF NOT EXISTS persons (
   email_address TEXT NOT NULL,
   github_username TEXT NOT NULL UNIQUE,
   person_type_id INTEGER NOT NULL,
+  team_id INTEGER NULL,
   FOREIGN KEY (person_type_id)
     REFERENCES person_types(id)
     ON DELETE CASCADE
-    ON UPDATE CASCADE
+    ON UPDATE CASCADE,
+  FOREIGN KEY (team_id)
+    REFERENCES teams(id)
+      ON DELETE CASCADE
+      ON UPDATE CASCADE
 );
 
+-- Team tables for all types of teams.
 CREATE TABLE IF NOT EXISTS team_types (
   id INTEGER PRIMARY KEY,
   name TEXT NOT NULL UNIQUE
@@ -33,6 +39,22 @@ CREATE TABLE IF NOT EXISTS teams (
   FOREIGN KEY (team_type_id)
     REFERENCES team_types(id)
     ON DELETE CASCADE
+    ON UPDATE CASCADE
+);
+
+CREATE TABLE IF NOT EXISTS team_members (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  team_id INTEGER NOT NULL,
+  person_id INTEGER NOT NULL,
+  FOREIGN KEY (team_id)
+    REFERENCES teams(id)
+    ON DELETE CASCADE
+    ON UPDATE CASCADE,
+  FOREIGN KEY (person_id)
+    REFERENCES persons(id)
+    ON DELETE CASCADE
+    ON UPDATE CASCADE,
+  UNIQUE (team_id, person_id)
 );
 
 CREATE TABLE IF NOT EXISTS teaching_assistant_teams (
@@ -47,7 +69,6 @@ CREATE TABLE IF NOT EXISTS teaching_assistant_teams (
 CREATE TABLE IF NOT EXISTS student_teams (
   team_id INTEGER PRIMARY KEY,
   repository_name TEXT,
-  group_id INTEGER NOT NULL UNIQUE,
   teaching_assistant_team_id INTEGER,
   FOREIGN KEY (team_id)
     REFERENCES teams(id)
@@ -59,17 +80,13 @@ CREATE TABLE IF NOT EXISTS student_teams (
     ON UPDATE CASCADE
 );
 
+-- Student-specific tables.
 CREATE TABLE IF NOT EXISTS students (
   person_id INTEGER PRIMARY KEY,
-  team_id INTEGER NOT NULL,
   chose_partner INTEGER NOT NULL,
   FOREIGN KEY (person_id)
     REFERENCES persons(id)
     ON DELETE CASCADE
-    ON UPDATE CASCADE,
-  FOREIGN KEY (team_id)
-    REFERENCES teams(id)
-    ON DELETE CASCADE
     ON UPDATE CASCADE
 );
 
@@ -83,16 +100,12 @@ CREATE TABLE IF NOT EXISTS student_preferred_partners (
   UNIQUE (student_id, partner_id)
 );
 
+-- TeachingAssistant-specific tables.
 CREATE TABLE IF NOT EXISTS teaching_assistants (
   person_id INTEGER PRIMARY KEY,
-  team_id INTEGER NOT NULL,
   FOREIGN KEY (person_id)
     REFERENCES persons(id)
     ON DELETE CASCADE
-    ON UPDATE CASCADE,
-  FOREIGN KEY (team_id)
-    REFERENCES teams(id)
-    ON DELETE CASCADE
     ON UPDATE CASCADE
 );