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package org.traccar.web.client.login;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.smartgwt.client.util.SC;
import org.traccar.web.client.database.GlobalDatabaseService;
public class LoginController implements LoginDialog.LoginHandler {
private LoginDialog dialog;
public interface LoginHandler {
public void onLogin();
}
private LoginHandler loginHandler;
public void login(LoginHandler loginHandler) {
this.loginHandler = loginHandler;
dialog = new LoginDialog();
dialog.setLoginHandler(this);
dialog.draw();
dialog.centerInPage();
}
private boolean validate(String login, String password) {
if (login == null || login.isEmpty() || password == null || password.isEmpty()) {
SC.warn("Login and password fields must not be blank");
return false;
}
return true;
}
private static abstract class AsyncCallbackHandler implements AsyncCallback<Boolean> {
@Override
public void onFailure(Throwable caught) {
SC.warn("Remote procedure call error");
}
}
private final AsyncCallback<Boolean> loginCallback = new AsyncCallbackHandler() {
@Override
public void onSuccess(Boolean result) {
if (result) {
if (loginHandler != null) {
dialog.destroy();
loginHandler.onLogin();
}
} else {
SC.warn("Invalid login or password");
}
}
};
@Override
public void onLogin(String login, String password) {
if (validate(login, password)) {
GlobalDatabaseService.getInstance().authenticate(login, password, loginCallback);
}
}
private final AsyncCallback<Boolean> registerCallback = new AsyncCallbackHandler() {
@Override
public void onSuccess(Boolean result) {
if (result) {
if (loginHandler != null) {
dialog.destroy();
loginHandler.onLogin();
}
} else {
SC.warn("Registration failed");
}
}
};
@Override
public void onRegister(String login, String password) {
if (validate(login, password)) {
GlobalDatabaseService.getInstance().register(login, password, registerCallback);
}
}
}
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