Hedgehog_server
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ServerMonitorBot
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Merge pull request 'Применил паттерн Template' (#27) from feature/task-26-template into master 

Reviewed-on: L_DelOff/ServerMonitorBot#27
feature/task-10-hddtemp
L_DelOff 2023-08-13 18:28:05 +03:00
parent 99d06bb3bc 32147b0e52
commit e75c496ea8
13 changed files with 239 additions and 264 deletions
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130
src/main/java/ru/ldeloff/servermonitorbot/controller/TelegramBotController.java
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@ -4,18 +4,14 @@ import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.telegram.telegrambots.bots.TelegramLongPollingBot;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.Update;
import org.telegram.telegrambots.meta.exceptions.TelegramApiException;
import ru.ldeloff.servermonitorbot.model.Role;
import ru.ldeloff.servermonitorbot.model.TelegramBot;
import ru.ldeloff.servermonitorbot.model.User;
import ru.ldeloff.servermonitorbot.repository.SshRepository;
import ru.ldeloff.servermonitorbot.service.TelegramBotService;
import ru.ldeloff.servermonitorbot.service.role.RoleService;
import ru.ldeloff.servermonitorbot.service.user.UserService;
import ru.ldeloff.servermonitorbot.utils.ui.TelegramBotKeyboard;
import ru.ldeloff.servermonitorbot.utils.ui.uname.UnameChatButtonAggregate;
import ru.ldeloff.servermonitorbot.service.command.FirstUseCommand;
import ru.ldeloff.servermonitorbot.service.command.GetStatusSessions;
import ru.ldeloff.servermonitorbot.service.command.SwitchToMainMenu;
import ru.ldeloff.servermonitorbot.service.command.uname.UnameAggregateCommand;
import ru.ldeloff.servermonitorbot.service.command.uname.UnameCommand;
@Service
@Slf4j
@ -24,115 +20,46 @@ public class TelegramBotController extends TelegramLongPollingBot {
final TelegramBot telegramBot;
final SshRepository sshRepository;
final TelegramBotService telegramBotService;
final UserService userService;
final RoleService roleService;
final FirstUseCommand firstUseCommand;
final GetStatusSessions getStatusSessions;
final UnameAggregateCommand unameAggregateCommand;
final SwitchToMainMenu switchToMainMenu;
final UnameCommand unameCommand;
@Override
public void onUpdateReceived(Update update) {
Role role = getRole(update);
if (update.hasMessage()) {
if (update.getMessage().hasText()) {
String messageText = update.getMessage().getText();
switch (messageText) {
case "/start" -> {
if (role.getId() < 3) {
log.info("Получена команда '" + messageText
+ "' от " + update.getMessage().getChat().getUserName()
+ " (" + update.getMessage().getChat().getId() + "). OK");
telegramBotService.firstUse(update, this);
} else {
log.warn("Получена команда '" + messageText
+ "' от " + update.getMessage().getChat().getUserName()
+ " (" + update.getMessage().getChat().getId() + "). Нет прав");
telegramBotService.notAuthorization(update, this);
}
firstUseCommand.execute(update, this);
}
case "Статус" -> {
if (role.getId() < 3) {
log.info("Получена команда '" + messageText
+ "' от " + update.getMessage().getChat().getUserName()
+ " (" + update.getMessage().getChat().getId() + "). OK");
telegramBotService.getStatusSessions(update, this);
} else {
log.warn("Получена команда '" + messageText
+ "' от " + update.getMessage().getChat().getUserName()
+ " (" + update.getMessage().getChat().getId() + "). Нет прав");
telegramBotService.notAuthorization(update, this);
}
getStatusSessions.execute(update, this);
}
case "uname" -> {
if (role.getId() < 3) {
log.info("Получена команда '" + messageText
+ "' от " + update.getMessage().getChat().getUserName()
+ " (" + update.getMessage().getChat().getId() + "). OK");
telegramBotService.sendUnameAggregate(update, this);
} else {
log.warn("Получена команда '" + messageText
+ "' от " + update.getMessage().getChat().getUserName()
+ " (" + update.getMessage().getChat().getId() + "). Нет прав");
telegramBotService.notAuthorization(update, this);
}
unameAggregateCommand.execute(update, this);
}
default -> {
if (role.getId() < 3) {
log.warn("Неизвестная команда '" + messageText
+ "' от " + update.getMessage().getChat().getUserName()
+ " (" + update.getMessage().getChat().getId() + "). ОК");
telegramBotService.switchToMainMenu(update, this);
} else {
log.warn("Неизвестная команда '" + messageText
+ "' от " + update.getMessage().getChat().getUserName()
+ " (" + update.getMessage().getChat().getId() + "). Нет прав");
telegramBotService.notAuthorization(update, this);
}
switchToMainMenu.execute(update, this);
}
}
}
} else if (update.hasCallbackQuery()) {
String messageText = update.getCallbackQuery().getData();
String [] tags = messageText.split(":");
String [] tags = update.getCallbackQuery().getData().split(":");
if (tags.length > 1) {
switch (tags[0]) {
case "uname":
if (role.getId() < 3) {
log.info("Получена команда '" + messageText
+ "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+ " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). ОК");
telegramBotService.uname(update, this);
} else {
log.info("Получена команда '" + messageText
+ "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+ " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). Нет прав");
telegramBotService.notAuthorization(update, this);
case "uname" -> {
unameCommand.execute(update, this);
}
break;
default:
if (role.getId() < 3) {
log.warn("Неизвестная команда '" + messageText
+ "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+ " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). ОК");
telegramBotService.switchToMainMenu(update, this);
} else {
log.warn("Неизвестная команда '" + messageText
+ "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+ " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). Нет прав");
telegramBotService.notAuthorization(update, this);
default -> {
switchToMainMenu.execute(update, this);
}
break;
}
} else {
if (role.getId() < 3) {
log.warn("Неверный формат команды '" + messageText
+ "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+ " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). ОК");
telegramBotService.switchToMainMenu(update, this);
} else {
log.warn("Неверный формат команды '" + messageText
+ "' от " + update.getCallbackQuery().getMessage().getChat().getUserName()
+ " (" + update.getCallbackQuery().getMessage().getChat().getId() + "). Нет прав");
telegramBotService.notAuthorization(update, this);
}
switchToMainMenu.execute(update, this);
}
}
}
@ -152,19 +79,4 @@ public class TelegramBotController extends TelegramLongPollingBot {
super.onClosing();
sshRepository.disconnectSessions();
}
private Role getRole(Update update) {
Long id = null;
if (update.hasMessage()) {
id = update.getMessage().getChat().getId();
} else if (update.hasCallbackQuery()) {
id = update.getCallbackQuery().getMessage().getChat().getId();
}
User user = userService.getByTelegramId(id);
if (user == null) {
return roleService.findRoleById(3L);
} else {
return user.getRole();
}
}
}

3
src/main/java/ru/ldeloff/servermonitorbot/model/User.java
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@ -18,4 +18,7 @@ public class User {
@ManyToOne
@JoinColumn(name = "role_id")
private Role role;
@Transient
private String login;
}

14
src/main/java/ru/ldeloff/servermonitorbot/service/TelegramBotService.java
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@ -1,14 +0,0 @@
package ru.ldeloff.servermonitorbot.service;
import org.telegram.telegrambots.meta.api.objects.Update;
import ru.ldeloff.servermonitorbot.controller.TelegramBotController;
public interface TelegramBotService {
void switchToMainMenu(Update update, TelegramBotController bot);
void getStatusSessions(Update update, TelegramBotController bot);
void sendUnameAggregate(Update update, TelegramBotController bot);
void uname(Update update, TelegramBotController bot);
void firstUse(Update update, TelegramBotController bot);
void notAuthorization(Update update, TelegramBotController bot);
}

91
src/main/java/ru/ldeloff/servermonitorbot/service/TelegramBotServiceImpl.java
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@ -1,91 +0,0 @@
package ru.ldeloff.servermonitorbot.service;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.Update;
import org.telegram.telegrambots.meta.exceptions.TelegramApiException;
import ru.ldeloff.servermonitorbot.controller.TelegramBotController;
import ru.ldeloff.servermonitorbot.repository.SshRepository;
import ru.ldeloff.servermonitorbot.service.ssh.SshService;
import ru.ldeloff.servermonitorbot.service.uname.UnameService;
import ru.ldeloff.servermonitorbot.utils.ui.TelegramBotKeyboard;
import ru.ldeloff.servermonitorbot.utils.ui.uname.UnameChatButtonAggregate;
@Slf4j
@Service
@RequiredArgsConstructor
public class TelegramBotServiceImpl implements TelegramBotService {
final TelegramBotKeyboard telegramBotKeyboard;
final UnameChatButtonAggregate unameChatButtonAggregate;
final UnameService unameService;
final SshService sshService;
@Override
public void firstUse(Update update, TelegramBotController bot) {
SendMessage message = new SendMessage();
long chatId = 0L;
chatId = update.getMessage().getChatId();
message.setText("Добро пожаловать " + update.getMessage().getChat().getUserName() + "!");
message.setChatId(chatId);
sendMessage(telegramBotKeyboard.uiForm(message), bot);
}
@Override
public void notAuthorization(Update update, TelegramBotController bot) {
long id = 0L;
String login = null;
long chatId = 0L;
if (update.hasMessage()) {
id = update.getMessage().getChat().getId();
login = update.getMessage().getChat().getUserName();
chatId = update.getMessage().getChatId();
} else if (update.hasCallbackQuery()) {
id = update.getCallbackQuery().getMessage().getChat().getId();
login = update.getCallbackQuery().getMessage().getChat().getUserName();
chatId = update.getCallbackQuery().getMessage().getChatId();
}
SendMessage message = new SendMessage();
message.setText("У пользователя " + login
+ " (" + id + ") недостаточно прав для выполнения этой команды");
message.setChatId(chatId);
sendMessage(message, bot);
}
@Override
public void switchToMainMenu(Update update, TelegramBotController bot) {
SendMessage message = new SendMessage();
long chatId = 0L;
try {
chatId = update.getMessage().getChatId();
} catch (Exception e) {
chatId = update.getCallbackQuery().getMessage().getChatId();
}
message.setText("Неверная команда и или формат. Попробуем сначала.");
message.setChatId(chatId);
sendMessage(telegramBotKeyboard.uiForm(message), bot);
}
@Override
public void getStatusSessions(Update update, TelegramBotController bot) {
sendMessage(sshService.getStatusSessions(update), bot);
}
@Override
public void sendUnameAggregate(Update update, TelegramBotController bot) {
sendMessage(unameService.sendUnameAggregate(update), bot);
}
@Override
public void uname(Update update, TelegramBotController bot) {
sendMessage(unameService.uname(update), bot);
}
private void sendMessage(SendMessage message, TelegramBotController bot) {
try {
bot.execute(message);
} catch (TelegramApiException e) {
e.printStackTrace();
log.warn(e.getMessage());
}
}
}

87
src/main/java/ru/ldeloff/servermonitorbot/service/command/CommandTemplate.java Normal file
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@ -0,0 +1,87 @@
package ru.ldeloff.servermonitorbot.service.command;
import lombok.Data;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.Update;
import org.telegram.telegrambots.meta.exceptions.TelegramApiException;
import ru.ldeloff.servermonitorbot.controller.TelegramBotController;
import ru.ldeloff.servermonitorbot.model.User;
import ru.ldeloff.servermonitorbot.service.role.RoleService;
import ru.ldeloff.servermonitorbot.service.user.UserService;
@Data
@Slf4j
@RequiredArgsConstructor
public abstract class CommandTemplate {
final UserService userService;
final RoleService roleService;
long expectedRole = 2L;
public abstract SendMessage actionForAuth(User user, SendMessage message);
public SendMessage actionForNotAuth(User user, SendMessage message) {
message.setText("У пользователя " + user.getLogin() + " (" + user.getTelegramId()
+ ") недостаточно прав для выполнения этой команды");
return message;
}
public void execute(Update update, TelegramBotController bot) {
User user = getUser(update);
String message = getMessage(update);
SendMessage answer = new SendMessage();
answer.setChatId(user.getTelegramId());
answer.setText(message);
if (user.getRole().getId() <= expectedRole) {
logSuccess(user, message);
sendMessage(actionForAuth(user, answer), bot);
} else {
logNotAuth(user, message);
sendMessage(actionForNotAuth(user, answer), bot);
}
}
protected void logSuccess(User user, String message) {
log.info("Получена команда '" + message + "' от " + user.getLogin()
+ " (" + user.getTelegramId() + "). OK");
}
protected void logNotAuth(User user, String message) {
log.warn("Получена команда '" + message + "' от " + user.getLogin()
+ " (" + user.getTelegramId() + "). Нет прав");
}
private User getUser(Update update) {
long id = -1L;
String login = null;
if (update.hasMessage()) {
id = update.getMessage().getChat().getId();
login = update.getMessage().getChat().getUserName();
} else if (update.hasCallbackQuery()) {
id = update.getCallbackQuery().getMessage().getChat().getId();
login = update.getCallbackQuery().getMessage().getChat().getUserName();
}
User user = userService.getByTelegramId(id);
if (user == null) {
user = new User();
user.setTelegramId(id);
user.setRole(roleService.findRoleById(3L));
}
user.setLogin(login);
return user;
}
private String getMessage(Update update) {
if (update.hasMessage()) {
return update.getMessage().getText();
} else if (update.hasCallbackQuery()) {
return update.getCallbackQuery().getData();
}
return "";
}
private void sendMessage(SendMessage message, TelegramBotController bot) {
try {
bot.execute(message);
} catch (TelegramApiException e) {
e.printStackTrace();
log.warn(e.getMessage());
}
}
}

23
src/main/java/ru/ldeloff/servermonitorbot/service/command/FirstUseCommand.java Normal file
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@ -0,0 +1,23 @@
package ru.ldeloff.servermonitorbot.service.command;
import org.springframework.stereotype.Service;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import ru.ldeloff.servermonitorbot.model.User;
import ru.ldeloff.servermonitorbot.service.role.RoleService;
import ru.ldeloff.servermonitorbot.service.user.UserService;
import ru.ldeloff.servermonitorbot.utils.ui.TelegramBotKeyboard;
@Service
public class FirstUseCommand extends CommandTemplate {
final TelegramBotKeyboard telegramBotKeyboard;
public FirstUseCommand(UserService userService, RoleService roleService, TelegramBotKeyboard telegramBotKeyboard) {
super(userService, roleService);
this.telegramBotKeyboard = telegramBotKeyboard;
}
@Override
public SendMessage actionForAuth(User user, SendMessage message) {
message.setText("Добро пожаловать " + user.getLogin() + "!");
return telegramBotKeyboard.uiForm(message);
}
}

23
src/main/java/ru/ldeloff/servermonitorbot/service/command/GetStatusSessions.java Normal file
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@ -0,0 +1,23 @@
package ru.ldeloff.servermonitorbot.service.command;
import org.springframework.stereotype.Service;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import ru.ldeloff.servermonitorbot.model.User;
import ru.ldeloff.servermonitorbot.service.role.RoleService;
import ru.ldeloff.servermonitorbot.service.ssh.SshService;
import ru.ldeloff.servermonitorbot.service.user.UserService;
@Service
public class GetStatusSessions extends CommandTemplate {
final SshService sshService;
public GetStatusSessions(UserService userService, RoleService roleService, SshService sshService) {
super(userService, roleService);
this.sshService = sshService;
}
@Override
public SendMessage actionForAuth(User user, SendMessage message) {
return sshService.getStatusSessions(message);
}
}

35
src/main/java/ru/ldeloff/servermonitorbot/service/command/SwitchToMainMenu.java Normal file
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@ -0,0 +1,35 @@
package ru.ldeloff.servermonitorbot.service.command;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import ru.ldeloff.servermonitorbot.model.User;
import ru.ldeloff.servermonitorbot.service.role.RoleService;
import ru.ldeloff.servermonitorbot.service.user.UserService;
import ru.ldeloff.servermonitorbot.utils.ui.TelegramBotKeyboard;
@Service
@Slf4j
public class SwitchToMainMenu extends CommandTemplate {
final TelegramBotKeyboard telegramBotKeyboard;
public SwitchToMainMenu(UserService userService, RoleService roleService, TelegramBotKeyboard telegramBotKeyboard) {
super(userService, roleService);
this.telegramBotKeyboard = telegramBotKeyboard;
}
@Override
public SendMessage actionForAuth(User user, SendMessage message) {
message.setText("Неверная команда. Попробуем сначала.");
return telegramBotKeyboard.uiForm(message);
}
@Override
public void logSuccess(User user, String message) {
log.warn("Получена несуществующая команда '" + message + "' от " + user.getLogin()
+ " (" + user.getTelegramId() + "). OK");
}
@Override
public void logNotAuth(User user, String message) {
log.warn("Получена несуществующая команда '" + message + "' от " + user.getLogin()
+ " (" + user.getTelegramId() + "). Нет прав");
}
}

24
src/main/java/ru/ldeloff/servermonitorbot/service/command/uname/UnameAggregateCommand.java Normal file
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@ -0,0 +1,24 @@
package ru.ldeloff.servermonitorbot.service.command.uname;
import org.springframework.stereotype.Service;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import ru.ldeloff.servermonitorbot.model.User;
import ru.ldeloff.servermonitorbot.service.command.CommandTemplate;
import ru.ldeloff.servermonitorbot.service.role.RoleService;
import ru.ldeloff.servermonitorbot.service.user.UserService;
import ru.ldeloff.servermonitorbot.utils.ui.uname.UnameChatButtonAggregate;
@Service
public class UnameAggregateCommand extends CommandTemplate {
final UnameChatButtonAggregate unameChatButtonAggregate;
public UnameAggregateCommand(UserService userService, RoleService roleService, UnameChatButtonAggregate unameChatButtonAggregate) {
super(userService, roleService);
this.unameChatButtonAggregate = unameChatButtonAggregate;
}
@Override
public SendMessage actionForAuth(User user, SendMessage message) {
return unameChatButtonAggregate.uiForm(message);
}
}

41
src/main/java/ru/ldeloff/servermonitorbot/service/uname/UnameServiceImpl.java → src/main/java/ru/ldeloff/servermonitorbot/service/command/uname/UnameCommand.java
View File

@ -1,15 +1,16 @@
package ru.ldeloff.servermonitorbot.service.uname;
package ru.ldeloff.servermonitorbot.service.command.uname;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.Update;
import ru.ldeloff.servermonitorbot.model.Command;
import ru.ldeloff.servermonitorbot.model.SshServer;
import ru.ldeloff.servermonitorbot.model.User;
import ru.ldeloff.servermonitorbot.service.command.CommandTemplate;
import ru.ldeloff.servermonitorbot.service.role.RoleService;
import ru.ldeloff.servermonitorbot.service.ssh.SshService;
import ru.ldeloff.servermonitorbot.service.user.UserService;
import ru.ldeloff.servermonitorbot.utils.SshServerUtils;
import ru.ldeloff.servermonitorbot.utils.ui.uname.UnameChatButtonAggregate;
import java.util.Arrays;
import java.util.List;
@ -17,45 +18,31 @@ import java.util.Objects;
import java.util.Optional;
@Service
@RequiredArgsConstructor
@Slf4j
public class UnameServiceImpl implements UnameService {
public class UnameCommand extends CommandTemplate {
final SshService sshService;
final UnameChatButtonAggregate unameChatButtonAggregate;
@Override
public SendMessage sendUnameAggregate(Update update) {
SendMessage message = new SendMessage();
long chatId = update.getMessage().getChatId();
message.setChatId(chatId);
return unameChatButtonAggregate.uiForm(message);
public UnameCommand(UserService userService, RoleService roleService, SshService sshService) {
super(userService, roleService);
this.sshService = sshService;
}
@Override
public SendMessage uname(Update update) {
String messageText = update.getCallbackQuery().getData();
String [] tags = Arrays.stream(messageText.split(":"))
public SendMessage actionForAuth(User user, SendMessage message) {
String [] tags = Arrays.stream(message.getText().split(":"))
.map(String::trim)
.toArray(String[]::new);
String result;
if (tags[1].equals("all")) {
result = unameAllHost();
message.setText(unameAllHost());
} else {
result = unameSpecificHost(tags[1]);
message.setText(Objects.requireNonNull(unameSpecificHost(tags[1])));
}
SendMessage message = new SendMessage();
long chatId = update.getCallbackQuery().getMessage().getChatId();
message.setChatId(chatId);
message.setText(result);
return message;
}
private String unameAllHost() {
List<SshServer> servers = SshServerUtils.filterGoodServers(sshService.getSshServers());
StringBuilder response = new StringBuilder();
servers.forEach(server -> {
response.append(unameSpecificHost(server.getName())).append("\n");
});
servers.forEach(server -> response.append(unameSpecificHost(server.getName())).append("\n"));
return response.toString();
}

4
src/main/java/ru/ldeloff/servermonitorbot/service/ssh/SshService.java
View File

@ -2,14 +2,14 @@ package ru.ldeloff.servermonitorbot.service.ssh;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.Update;
import ru.ldeloff.servermonitorbot.model.Command;
import ru.ldeloff.servermonitorbot.model.SshServer;
import java.util.List;
public interface SshService {
SendMessage getStatusSessions(Update update);
SendMessage getStatusSessions(SendMessage update);
List<SshServer> getSshServers();
Command execute(Command command);
List<Command> execute(List<Command> commands);

6
src/main/java/ru/ldeloff/servermonitorbot/service/ssh/SshServiceImpl.java
View File

@ -7,7 +7,6 @@ import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.Update;
import ru.ldeloff.servermonitorbot.model.Command;
import ru.ldeloff.servermonitorbot.model.SshServer;
import ru.ldeloff.servermonitorbot.repository.SshRepository;
@ -22,11 +21,8 @@ import java.util.List;
public class SshServiceImpl implements SshService {
final SshRepository sshRepository;
@Override
public SendMessage getStatusSessions(Update update) {
SendMessage message = new SendMessage();
long chatId = update.getMessage().getChatId();
public SendMessage getStatusSessions(SendMessage message) {
message.setText(sshRepository.getStatusSessions());
message.setChatId(chatId);
return message;
}
@Override

10
src/main/java/ru/ldeloff/servermonitorbot/service/uname/UnameService.java
View File

@ -1,10 +0,0 @@
package ru.ldeloff.servermonitorbot.service.uname;
import org.telegram.telegrambots.meta.api.methods.send.SendMessage;
import org.telegram.telegrambots.meta.api.objects.Update;
public interface UnameService {
SendMessage sendUnameAggregate(Update update);
SendMessage uname(Update update);
}