Ejemplo n.º 1
0
  public static void addNewUser(String id, String name) throws Exception {
    if (id == null || name == null) return;
    id = id.trim();
    name = name.trim();
    if (id.isEmpty() || name.isEmpty() || id.contains(" ")) {
      printError(
          "Incorect ID or Name. User ID and name cannot be empty and ID cannot contain whitespace.");
      return;
    }
    boolean added = false;

    added = control.addUser(id, name);
    if (added) System.out.println("created user " + id + " with name " + name);
    else {
      User temp = control.login(id);
      System.out.println("user " + id + " already exists with name " + temp.getFullName());
      control.logout();
    }
  }
Ejemplo n.º 2
0
  public static void goToUserMode(String ID) {
    ID = ID.trim();
    if (ID.contains(" ")) {
      printError("ID cannot contain spaces.");
      return;
    }
    User user = control.login(ID);
    if (user != null) {

      commandReader = new BufferedReader(new InputStreamReader(System.in));
      while (true) {
        String line = null;
        try {
          line = commandReader.readLine();
        } catch (IOException e) {
          printError("Could Not Read Input Line");
          continue;
        }
        if (line == null) {
          printError("Could Not Read Input Line");
          continue;
        } else if (line.isEmpty()) {
          printError("Command Sould Not Be Empty");
          continue;
        }
        tokenizer = new StringTokenizer(line, " "); // break up input line based on spaces
        String command = new String();
        if (tokenizer.hasMoreTokens()) {
          command = tokenizer.nextToken();
        } else {
          printError("Could Not Read the Command");
          continue;
        }
        if (command.compareTo("createAlbum") == 0) // works
        {
          boolean created = false;
          String albumName = new String();
          try {
            String tmp = tokenizer.nextToken("\""); // skip space
            if (tmp.compareTo(" ") != 0) // if the token was not space print error
            throw new NoSuchElementException();
            String tmp2 =
                tokenizer.nextToken(
                    "\0"); // read the rest of the token(prevents from reading after double quotes)
            if (!tmp2.endsWith("\"")) // check if it ends with quote
            throw new NoSuchElementException();
            tokenizer = new StringTokenizer(tmp2); // to read stuff before quote
            albumName = tokenizer.nextToken("\""); // read the album name
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError("Correct Format -createAlbum \"<albumName>\"");
            continue;
          }
          if (albumName == null) {
            printError("Could Not Create Album");
            continue;
          }
          albumName = albumName.trim();
          if (albumName.isEmpty()) {
            printError("Album name cannot be empty.");
            continue;
          }

          created = control.createAlbum(albumName);
          if (created) {
            System.out.println("created album for user " + user.getID() + ":");
            System.out.println(albumName);
          } else {
            System.out.println("album exists for user " + user.getID() + ":");
            System.out.println(albumName);
          }
        } else if (command.compareTo("deleteAlbum") == 0) // works
        {
          boolean deleted = false;
          String albumName = new String();
          try {
            String tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            String tmp2 = tokenizer.nextToken("\0");
            if (!tmp2.endsWith("\"")) throw new NoSuchElementException();
            tokenizer = new StringTokenizer(tmp2);
            albumName = tokenizer.nextToken("\"");
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError("Correct Format -deleteAlbum \"<albumName>\"");
            continue;
          }
          if (albumName == null) {
            printError("Could Not Delete Album");
            continue;
          }
          albumName = albumName.trim();
          if (albumName.isEmpty()) {
            printError("Album Name Cannot be Empty.");
            continue;
          }

          deleted = control.deleteAlbum(albumName);
          if (deleted) {
            System.out.println("deleted album from user " + user.getID() + ":");
            System.out.println(albumName);
          } else {
            System.out.println("album does not exist for user " + user.getID() + ":");
            System.out.println(albumName);
          }
        } else if (command.compareTo("listAlbums") == 0) // works
        {
          if (tokenizer.hasMoreTokens()) {
            printError("Correct Format -listAlbums");
            continue;
          }
          List<Album> userAlbums = new ArrayList<Album>();
          userAlbums = control.listAlbums();
          if (userAlbums == null) {
            printError("Could not retrieve the list of albums");
            continue;
          }
          if (userAlbums.isEmpty()) {
            System.out.println("No albums exist for user " + user.getID());
          } else {
            System.out.println("Albums for user " + user.getID());
            for (int i = 0;
                i < userAlbums.size();
                i++) { // control needs methods for getting start and end dates of an album and
                       // number of photos in it
              int numOfPhotos = userAlbums.get(i).getPhotos().size();
              System.out.print(userAlbums.get(i).getName() + " number of photos: " + numOfPhotos);
              if (numOfPhotos != 0) {
                System.out.print(", " + control.getStartAndEndDate(userAlbums.get(i)));
              }
              System.out.println();
            }
          }
        } else if (command.compareTo("listPhotos") == 0) {
          String albumName = new String();
          try {
            String tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            String tmp2 = tokenizer.nextToken("\0");
            if (!tmp2.endsWith("\"")) throw new NoSuchElementException();
            tokenizer = new StringTokenizer(tmp2);
            albumName = tokenizer.nextToken("\"");
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError("Correct Format -listPhotos \"<albumName>\"");
            continue;
          }
          if (albumName == null) {
            printError("Could Not List Photos.");
            continue;
          }
          albumName = albumName.trim();
          if (albumName.isEmpty()) {
            printError("Album Name Cannot Be Empty.");
            continue;
          }
          List<Photo> photos = null;
          try {
            photos = control.listPhotos(albumName);

            if (photos == null) {
              printError("Could Not List Photos");
              continue;
            }
            System.out.println("Photos for album " + albumName + ":");
            for (int i = 0; i < photos.size(); i++) {
              System.out.println(
                  photos.get(i).getFileName() + " - " + Utils.formatDate(photos.get(i).getDate()));
            }
          } catch (AlbumNotFoundException e) {
            System.out.println("Album " + albumName + " does not exist");
            continue;
          }
        } else if (command.compareTo("addPhoto") == 0) // more testing needed
        {
          String fileName = new String();
          String caption = new String();
          String albumName = new String();
          try {
            String tmp = tokenizer.nextToken("\""); // skip space
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            fileName = tokenizer.nextToken("\""); // get file name
            if (fileName.compareTo(" ") == 0) throw new NoSuchElementException();
            tmp = tokenizer.nextToken("\""); // skip space
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            caption = tokenizer.nextToken("\"");
            if (caption.compareTo(" ") == 0) {
              caption = "";
              String tmp2 = tokenizer.nextToken("\0");
              if (!tmp2.endsWith("\"")) throw new NoSuchElementException();
              tokenizer = new StringTokenizer(tmp2);
              albumName = tokenizer.nextToken("\"");
            } else {
              tokenizer.nextToken("\"");
              String tmp2 = tokenizer.nextToken("\0");
              if (!tmp2.endsWith("\"")) throw new NoSuchElementException();
              tokenizer = new StringTokenizer(tmp2);
              albumName = tokenizer.nextToken("\"");
            }
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError("Correct Format -addPhoto \"<fileName>\" \"<caption>\" \"<albumName>\"");
            continue;
          }
          if (fileName == null || caption == null || albumName == null) {
            printError(
                "Correct Format -" + "addPhoto \"<fileName>\" \"<caption>\" \"<albumName>\"");
            continue;
          }
          caption = caption.trim();
          fileName = fileName.trim();
          albumName = albumName.trim();
          if (fileName.isEmpty() || albumName.isEmpty()) {
            printError(
                "Correct Format -" + "addPhoto \"<fileName>\" \"<caption>\" \"<albumName>\"");
            continue;
          }
          fileName = fileName.trim();
          albumName = albumName.trim();
          if (!caption.isEmpty()) caption = caption.trim();
          List<Album> albs = control.listAlbums();
          boolean albumExists = false;
          if (albs != null) {
            for (int i = 0; i < albs.size(); i++) {
              if (albs.get(i).getName().compareTo(albumName) == 0) albumExists = true;
            }
          }
          if (!albumExists) {
            System.out.println("Album " + albumName + " does not exist");
            continue;
          }
          File photoFile = new File(fileName);
          if (!photoFile.exists() || photoFile.isDirectory()) {
            System.out.println("File " + photoFile.getAbsolutePath() + " does not exist");
            continue;
          }
          boolean added = false;
          try {
            added = control.addPhoto(fileName, caption, albumName);

            if (added) {
              Photo addedPhoto = control.getPhotoByFileName(fileName);
              System.out.println("Added photo " + fileName + ":");
              System.out.println(addedPhoto.getCaption() + " - Album: " + albumName);
            } else {
              System.out.println(
                  "Photo " + photoFile.getAbsolutePath() + " already exists in album " + albumName);
            }
          } catch (AlbumNotFoundException e) {
            System.out.println("Album " + albumName + " does not exist");
            continue;
          } catch (FileNotFoundException e) {
            System.out.println("File " + photoFile.getAbsolutePath() + " does not exist");
            continue;
          } catch (IllegalArgumentException e) {
            printError(e.getMessage());
            continue;
          }
        } else if (command.compareTo("movePhoto") == 0) {
          String fileName = new String();
          String oldAlbum = new String();
          String newAlbum = new String();
          try {
            String tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            fileName = tokenizer.nextToken("\"");
            tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            oldAlbum = tokenizer.nextToken("\"");
            tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            String tmp2 = tokenizer.nextToken("\0");
            if (!tmp2.endsWith("\"")) throw new NoSuchElementException();
            tokenizer = new StringTokenizer(tmp2);
            newAlbum = tokenizer.nextToken("\"");
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError(
                "Correct Format -movePhoto \"<fileName>\" \"<oldAlbumName>\" \"<newAlbumName>\"");
            continue;
          }
          if (fileName == null || oldAlbum == null || newAlbum == null) {
            printError(
                "Correct Format -"
                    + "movePhoto \"<fileName>\" \"<oldAlbumName>\" \"<newAlbumName>\"");
            continue;
          }
          fileName = fileName.trim();
          oldAlbum = oldAlbum.trim();
          newAlbum = newAlbum.trim();
          if (fileName.isEmpty() || oldAlbum.isEmpty() || newAlbum.isEmpty()) {
            printError(
                "Correct Format -"
                    + "movePhoto \"<fileName>\" \"<oldAlbumName>\" \"<newAlbumName>\"");
            continue;
          }
          boolean moved = false;
          boolean inOldAlbum = false, oldAlbumExists = false, newAlbumExists = false;
          List<Album> albsAll = control.listAlbums();
          for (int i = 0; i < albsAll.size(); i++) {
            if (albsAll.get(i).getName().compareTo(oldAlbum) == 0) oldAlbumExists = true;
            if (albsAll.get(i).getName().compareTo(newAlbum) == 0) newAlbumExists = true;
          }
          if (!oldAlbumExists) {
            System.out.println("Album " + oldAlbum + " does not exist");
            if (!newAlbumExists) System.out.println("Album " + newAlbum + " does not exist");
            continue;
          }
          if (!newAlbumExists) {
            System.out.println("Album " + newAlbum + " does not exist");
            continue;
          }
          try {
            List<String> albs = control.listsPhotoAlbumNamesInfo(fileName);
            if (albs == null) {
              System.out.println("Photo " + fileName + " does not exist in " + oldAlbum);
              continue;
            }

            for (int i = 0; i < albs.size(); i++) {
              if (albs.get(i).compareTo(newAlbum)
                  == 0) // if the photo exists in old album do not do anything
              {
                inOldAlbum = true;
              }
            }
            if (inOldAlbum) continue;

            moved = control.movePhoto(fileName, oldAlbum, newAlbum);
            if (moved) {
              System.out.println("Moved photo " + fileName);
              System.out.println(fileName + " - From album " + oldAlbum + " to album " + newAlbum);
            } else {
              System.out.println("Photo " + fileName + " does not exist in " + oldAlbum);
            }
          } catch (AlbumNotFoundException e) {
            printError(e.getMessage());
            continue;
          } catch (PhotoNotFoundException e) {
            // TODO Auto-generated catch block
            System.out.println("Photo " + fileName + " does not exist");
            continue;
          } catch (FileNotFoundException e) {
            System.out.println("Photo " + fileName + " does not exist");
            continue;
          }
        } else if (command.compareTo("removePhoto") == 0) // works
        {
          String fileName = new String();
          String albumName = new String();
          try {
            String tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            fileName = tokenizer.nextToken("\"");
            tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            String tmp2 = tokenizer.nextToken("\0");
            if (!tmp2.endsWith("\"")) throw new NoSuchElementException();
            tokenizer = new StringTokenizer(tmp2);
            albumName = tokenizer.nextToken("\"");
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError("Correct Format -removePhoto \"<fileName>\" \"<albumName>\"");
            continue;
          }
          if (fileName == null || albumName == null) {
            printError("Correct Format -" + "removePhoto \"<fileName>\" \"<albumName>\"");
            continue;
          }
          fileName = fileName.trim();
          albumName = albumName.trim();
          if (fileName.isEmpty() || albumName.isEmpty()) {
            printError("Correct Format -" + "removePhoto \"<fileName>\" \"<albumName>\"");
            continue;
          }
          boolean albumExists = false;
          List<Album> albsAll = control.listAlbums();
          for (int i = 0; i < albsAll.size(); i++) {
            if (albsAll.get(i).getName().compareTo(albumName) == 0) albumExists = true;
          }
          if (!albumExists) {
            System.out.println("Album " + albumName + " does not exist");
            continue;
          }
          boolean removed = false;
          try {
            removed = control.removePhoto(fileName, albumName);
            if (removed) {
              System.out.println("Removed photo:");
              System.out.println(fileName + " - From album " + albumName);
            } else {
              System.out.println("Photo " + fileName + " is not in album " + albumName);
            }
          } catch (AlbumNotFoundException e) {
            System.out.println("Album " + albumName + " does not exist");
            continue;
          } catch (FileNotFoundException e) {
            System.out.println("Photo " + fileName + " does not exist");
            continue;
          }
        } else if (command.compareTo("addTag") == 0) // works
        {
          String fileName = new String();
          String tagValue = new String();
          String tagType = new String();
          try {
            String tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            fileName = tokenizer.nextToken("\""); // file name
            tokenizer.nextToken(" ");
            tagType = tokenizer.nextToken(" :"); // tag type
            tokenizer.nextToken("\"");
            String tmp2 = tokenizer.nextToken("\0");
            if (!tmp2.endsWith("\"")) throw new NoSuchElementException();
            tokenizer = new StringTokenizer(tmp2);
            tagValue = tokenizer.nextToken("\""); // tag value
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError("Correct Format -addTag \"<fileName>\" <tagType>:\"<tagValue>\"");
            continue;
          }
          if (tagValue == null || fileName == null || tagType == null) {
            printError("Correct Format -addTag \"<fileName>\" <tagType>:\"<tagValue>\"");
            continue;
          }
          tagValue = tagValue.trim();
          fileName = fileName.trim();
          tagType = tagType.trim();
          if (tagValue.isEmpty() || fileName.isEmpty() || tagType.isEmpty()) {
            printError("Correct Format -addTag \"<fileName>\" <tagType>:\"<tagValue>\"");
            continue;
          }
          boolean added = false;
          try {
            added = control.addTag(fileName, tagType, tagValue);

            if (added) {
              System.out.println("Added tag:");
              System.out.println(fileName + " " + tagType + ":" + tagValue);
            } else {
              System.out.println(
                  "Tag already exists for " + fileName + " " + tagType + ":" + tagValue);
            }
          } catch (PhotoNotFoundException e) {
            // printError(e.getMessage());
            System.out.println("Photo " + fileName + " does not exist");
            continue;
          } catch (FileNotFoundException e) {
            System.out.println("Photo " + fileName + " does not exist");
            continue;
          }
        } else if (command.compareTo("deleteTag") == 0) // works
        {
          String fileName = new String();
          String tagValue = new String();
          String tagType = new String();
          try {
            String tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            fileName = tokenizer.nextToken("\""); // file name
            tokenizer.nextToken(" ");
            tagType = tokenizer.nextToken(" :"); // tag type
            tokenizer.nextToken("\"");
            String tmp2 = tokenizer.nextToken("\0");
            if (!tmp2.endsWith("\"")) throw new NoSuchElementException();
            tokenizer = new StringTokenizer(tmp2);
            tagValue = tokenizer.nextToken("\""); // tag value
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError("Correct Format -deleteTag \"<fileName>\" <tagType>:\"<tagValue>\"");
            continue;
          }
          if (tagValue == null || fileName == null || tagType == null) {
            printError("Correct Format -deleteTag \"<fileName>\" <tagType>:\"<tagValue>\"");
            continue;
          }
          tagValue = tagValue.trim();
          fileName = fileName.trim();
          tagType = tagType.trim();
          if (tagValue.isEmpty() || fileName.isEmpty() || tagType.isEmpty()) {
            printError("Correct Format -deleteTag \"<fileName>\" <tagType>:\"<tagValue>\"");
            continue;
          }
          boolean deleted = false;
          try {
            deleted = control.deleteTag(fileName, tagType, tagValue);

            if (deleted) {
              System.out.println("Deleted tag");
              System.out.println(fileName + " " + tagType + ":" + tagValue);
            } else {
              System.out.println(
                  "Tag does not exist for " + fileName + " " + tagType + ":" + tagValue);
            }
          } catch (PhotoNotFoundException e) {
            System.out.println("Photo " + fileName + " does not exist");
            continue;
          } catch (FileNotFoundException e) {
            System.out.println("Photo " + fileName + " does not exist");
            continue;
          }
        } else if (command.compareTo("listPhotoInfo") == 0) // works
        {
          String fileName = new String();
          try {
            String tmp = tokenizer.nextToken("\"");
            if (tmp.compareTo(" ") != 0) throw new NoSuchElementException();
            String tmp2 = tokenizer.nextToken("\0");
            if (!tmp2.endsWith("\"")) throw new NoSuchElementException();
            tokenizer = new StringTokenizer(tmp2);
            fileName = tokenizer.nextToken("\""); // file name
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError("Correct Format -listPhotoInfo \"<fileName>\"");
            continue;
          }
          if (fileName == null) {
            printError("Correct Format -listPhotoInfo \"<fileName>\"");
            continue;
          }
          fileName = fileName.trim();
          if (fileName.isEmpty()) {
            printError("Correct Format -listPhotoInfo \"<fileName>\"");
            continue;
          }

          try {

            Photo temp = control.getPhotoByFileName(fileName);
            List<String> albumNames = control.listsPhotoAlbumNamesInfo(fileName);
            if (temp != null && albumNames != null) {
              System.out.println("Photo file name: " + fileName);
              System.out.print("Album: ");
              if (!albumNames.isEmpty()) {
                for (int i = 0; i < albumNames.size() - 1; i++) {
                  System.out.print("\"" + albumNames.get(i) + "\", ");
                }
                System.out.print("\"" + albumNames.get(albumNames.size() - 1) + "\"");
              }
              System.out.println();
              System.out.println("Date: " + Utils.formatDate(temp.getDate())); // does not work
              System.out.println("Caption: " + temp.getCaption());
              System.out.println("Tags:");
              List<Tag> tags = temp.getTags();
              for (int i = 0; i < tags.size(); i++) System.out.println(tags.get(i).toString());
            } else System.out.println("Photo " + fileName + " does not exist");

          } catch (FileNotFoundException e) {
            System.out.println("Photo " + fileName + " does not exist");
            continue;
          }
        } else if (command.compareTo("getPhotosByDate") == 0) {
          String startDate = new String();
          String endDate = new String();
          try {
            startDate = tokenizer.nextToken(" "); // file name
            endDate = tokenizer.nextToken(" ");
            if (tokenizer.hasMoreTokens()) throw new NoSuchElementException();
          } catch (NoSuchElementException e) {
            printError("Correct Format -getPhotosByDate <start date> <end date>");
            continue;
          }
          if (startDate == null || endDate == null) {
            printError("Could not get photos by date.");
            continue;
          }
          startDate = startDate.trim();
          endDate = endDate.trim();
          if (startDate.isEmpty() || endDate.isEmpty()) {
            printError("Start date and end date cannot be empty.");
            continue;
          }
          List<Photo> photos = null;
          try {
            photos = control.getPhotosByDate(startDate, endDate);

            if (photos == null) {
              printError("Could not get photos by date.");
              continue;
            }
            System.out.println(
                "Photos for user " + user.getID() + " in range " + startDate + " to " + endDate);
            if (!photos.isEmpty()) {
              for (int i = 0; i < photos.size(); i++) {
                System.out.print(photos.get(i).getCaption() + " - Album: ");
                List<String> albumNames =
                    control.listsPhotoAlbumNamesInfo(photos.get(i).getFileName());
                for (int n = 0; n < albumNames.size() - 1; n++) {
                  System.out.print(albumNames.get(n) + ", ");
                }
                System.out.print(albumNames.get(albumNames.size() - 1));
                System.out.println(" - Date:" + Utils.formatDate(photos.get(i).getDate()));
              }
            }
          } catch (ParseException e) {
            printError(e.getMessage());
            continue;
          } catch (FileNotFoundException e) {
            printError(e.getMessage());
            continue;
          } catch (IllegalArgumentException e) {
            printError(e.getMessage());
            continue;
          }
        } else if (command.compareTo("getPhotosByTag") == 0) {
          String searchString = new String();
          try {
            searchString = tokenizer.nextToken("\0");
          } catch (NoSuchElementException e) {
            printError(
                "Correct Format -getPhotosByTag [<tagType>:]\"<tagValue>\" [,[<tagType>:]\"<tagValue>\"]... ");
            continue;
          }
          tokenizer = new StringTokenizer(searchString);
          List<String> tags = new ArrayList<String>();
          while (tokenizer
              .hasMoreTokens()) // this breaks up the tokens into tags(with or without values)
          {
            tags.add(tokenizer.nextToken(" ,"));
          }
          if (tags.isEmpty()) {
            printError(
                "Correct Format -getPhotosByTag [<tagType>:]\"<tagValue>\" [,[<tagType>:]\"<tagValue>\"]... ");
            continue;
          }
          try {
            for (int i = 0; i < tags.size(); i++) // removes the quotes around tag value
            {
              if (!tags.get(i).endsWith("\"")) {
                throw new IllegalArgumentException();
              }
              if (!tags.get(i).contains(":")) {
                if (!tags.get(i).startsWith("\"")) throw new IllegalArgumentException();
              }
              String temp = tags.get(i);
              tags.remove(i);
              StringTokenizer tok = new StringTokenizer(temp, "\"");
              ArrayList<String> args = new ArrayList<String>();
              while (tok.hasMoreTokens()) {
                args.add(tok.nextToken());
              }
              if (args.size() == 2) {
                tags.add(i, args.get(0).concat(args.get(1)));
              } else if (args.size() == 1) {
                if (args.get(0).endsWith(":")) throw new IllegalArgumentException();
                tags.add(0, args.get(0));
              } else {
                printError("getPhotosByTag. Could Not Parse Arguments.");
                continue;
              }
            }
          } catch (IllegalArgumentException e) {
            printError(
                "Correct Format -getPhotosByTag [<tagType>:]\"<tagValue>\" [,[<tagType>:]\"<tagValue>\"]... ");
            continue;
          }

          try {
            List<Photo> photos = control.getPhotosByTag(tags);
            if (photos == null) {
              printError("getPhotosByTag. Could not retrieve photos.");
              continue;
            }
            System.out.println(
                "Photos for user " + user.getID() + " with tags " + searchString + ": ");
            for (int i = 0; i < photos.size(); i++) {
              System.out.print(photos.get(i).getCaption() + " - Album:");
              List<String> albumNames =
                  control.listsPhotoAlbumNamesInfo(photos.get(i).getFileName());
              if (!albumNames.isEmpty()) {
                for (int n = 0; n < albumNames.size() - 1; n++) {
                  System.out.print(albumNames.get(n) + ", ");
                }
                System.out.print(albumNames.get(albumNames.size() - 1));
              }
              System.out.println(" - Date: " + Utils.formatDate(photos.get(i).getDate()));
            }
          } catch (FileNotFoundException e) {
            printError(e.getMessage());
            continue;
          } catch (IllegalArgumentException e) {
            printError(e.getMessage());
            continue;
          }
        } else if (command.compareTo("logout") == 0) // works
        {
          if (tokenizer.hasMoreTokens()) {
            printError("Corect Format -logout");
            continue;
          }
          control.logout();
          break;
        } else {
          printError("Unknown Command");
        }
      }

    } else {
      System.out.println("user " + ID + " does not exist");
    }
  }