com.jain.addon.helper.JNHelper.java Source code

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Here is the source code for com.jain.addon.helper.JNHelper.java

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/* 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.jain.addon.helper;

import com.jain.addon.i18N.component.I18NUI;
import com.jain.addon.resource.DefaultI18NResourceProvider;
import com.jain.addon.resource.I18NProvider;
import com.vaadin.shared.Position;
import com.vaadin.ui.Notification;
import com.vaadin.ui.UI;

/**
 * <code>JNHelper<code> is a Helper class containi8ng all the helper methods
 * @author Lokesh Jain
 * @since Nov 27, 2012
 * @version 1.1.0
 */
public final class JNHelper {
    private JNHelper() {
    }

    /**
     * Method to create Notification
     * @param currentUI
     * @param title
     * @param message
     * @param params
     * @return Notification
     */
    public static Notification createNotification(UI currentUI, String title, String message, Object... params) {
        I18NProvider provider = null;
        if (currentUI instanceof I18NUI)
            provider = ((I18NUI) currentUI).getI18nProvider();
        else
            provider = DefaultI18NResourceProvider.instance();

        Notification notification = new Notification(provider.getTitle(currentUI.getLocale(), title, params),
                Notification.Type.TRAY_NOTIFICATION);
        notification.setPosition(Position.MIDDLE_CENTER);
        notification.setDescription(provider.getMessage(currentUI.getLocale(), message, params));
        return notification;
    }

    /**
     * Method to create and Show notification
     * @param currentUI
     * @param title
     * @param message
     * @param params
     */
    public static void showNotification(UI currentUI, String title, String message, Object... params) {
        Notification notification = createNotification(currentUI, title, message, params);
        notification.show(currentUI.getPage());
    }

    /**
     * Method to find resource value for I18N support
     * @param ui
     * @param displayName
     * @param defaultValue
     * @param params
     * @return resource Value
     */
    public static String getResourceValue(UI currentUI, String resourceKey, String defaultValue, Object... params) {
        if (currentUI instanceof I18NUI)
            return ((I18NUI) currentUI).getI18nProvider().getText(currentUI.getLocale(), resourceKey, params);
        return defaultValue;
    }
}