UsernameRegisteredValidator.java

package org.peerbox.presenter.validation;

import javafx.beans.property.StringProperty;
import javafx.scene.control.TextField;

import org.hive2hive.core.exceptions.NoPeerConnectionException;
import org.peerbox.app.manager.user.IUserManager;
import org.peerbox.presenter.validation.ValidationUtils.ValidationResult;

public final class UsernameRegisteredValidator extends TextFieldValidator {

	private final IUserManager userManager;

	public UsernameRegisteredValidator(TextField txtUsername, StringProperty errorProperty, IUserManager userManager) {
		super(txtUsername, errorProperty, true);
		this.userManager = userManager;
	}

	@Override
	public ValidationResult validate(final String username) {
		return validate(username, false);
	}

	public ValidationResult validate(boolean checkIfRegistered) {
		return validate(validateTxtField.getText(), checkIfRegistered);
	}

	public ValidationResult validate(final String username, boolean checkIfRegistered) {
		try {

			if(username == null) {
				return ValidationResult.ERROR;
			}

			final String usernameTr = username.trim();
			ValidationResult res = ValidationUtils.validateUserExists(usernameTr, checkIfRegistered, userManager);

			if (res.isError()) {
				setErrorMessage(res.getMessage());
				decorateError();
			} else {
				clearErrorMessage();
				undecorateError();
			}

			return res;

		} catch (NoPeerConnectionException e) {
			setErrorMessage("Network connection failed.");
		}

		return ValidationResult.ERROR;
	}

	public void reset() {
		undecorateError();
		clearErrorMessage();
	}
}