org.eclipse.osbp.vaaclipse.ui.preferences.addon/src/org/eclipse/osbp/vaaclipse/ui/preferences/addon/internal/IntegerFieldEditorRenderer.java

/**
 * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0 
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *         Florian Pirchner - Initial implementation
 */
package org.eclipse.osbp.vaaclipse.ui.preferences.addon.internal;

import javax.inject.Inject;

import org.eclipse.osbp.vaaclipse.ui.preferences.addon.internal.exception.ValidationFailedException;
import org.eclipse.osbp.vaaclipse.ui.preferences.model.IntegerFieldEditor;

import com.vaadin.ui.CssLayout;
import com.vaadin.ui.TextField;

/**
 * @author rushan
 *
 */
public class IntegerFieldEditorRenderer extends FieldEditorRenderer<Integer> {

	@Inject
	IntegerFieldEditor editor;

	TextField textField;

	@Override
	public void render() {
		CssLayout layout = createCssLayoutWithCaption();
		textField = new TextField();
		if (getValue() != null)
			textField.setValue(getValue().toString());
		textField.setWidth("100%");
		layout.addComponent(textField);
	}

	@Override
	public Integer getValue() {
		return getPreferences().getInt(editor.getPreferenceName(),
				editor.getDefaultValueTyped());
	}

	@Override
	public void setValue(Integer value) {
		this.getPreferences().putInt(editor.getPreferenceName(), value);
	}

	@Override
	public void validate() throws ValidationFailedException {

		if (textField.getValue() != null) {
			int value;
			try {
				value = Integer.parseInt(textField.getValue());
			} catch (NumberFormatException e) {
				throw new ValidationFailedException(editor.getLabel(),
						"The value should be integer value");
			}

			if ((editor.getMinValidValue() != null && value < editor
					.getMinValidValue())
					|| (editor.getMaxValidValue() != null && value > editor
							.getMaxValidValue()))
				throw new ValidationFailedException(editor.getLabel(),
						String.format("Value should be in range (%s, %s)",
								editor.getMinValidValue() != null ? editor
										.getMinValidValue().toString() : "?",
								editor.getMaxValidValue() != null ? editor
										.getMaxValidValue().toString() : "?"));
		}
	}

	@Override
	public void save() {
		String value = textField.getValue();
		if (value != null) {
			try {
				int intValue = Integer.parseInt(value);
				setValue(intValue);
			} catch (NumberFormatException e) {

			}
		}
	}
}