faces/util/DateFormatUtil.java

/*
 * Copyright 2004-2007 The Portal Application Laboratory Team.
 *
 * 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 jp.sf.pal.common.faces.util;

import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;

import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;

public class DateFormatUtil {
    public static String getLongFormattedDateTime(Date d) {
        return getFormattedDateTime(d, DateFormat.LONG, DateFormat.LONG);
    }

    public static String getMediumFormattedDateTime(Date d) {
        return getFormattedDateTime(d, DateFormat.MEDIUM, DateFormat.MEDIUM);
    }

    public static String getShortFormattedDateTime(Date d) {
        return getFormattedDateTime(d, DateFormat.SHORT, DateFormat.SHORT);
    }

    public static String getFormattedDateTime(Date d, int dateStyle,
            int timeStyle)

    {
        UIViewRoot viewRoot = FacesContext.getCurrentInstance().getViewRoot();
        Locale locale = null;
        if (viewRoot != null) {
            locale = viewRoot.getLocale();
        } else {
            locale = Locale.ENGLISH;
        }

        DateFormat df = DateFormat.getDateTimeInstance(dateStyle, timeStyle,
                locale);
        return df.format(d);
    }

    public static String getLongFormattedDate(Date d) {
        return getFormattedDate(d, DateFormat.LONG);
    }

    public static String getMediumFormattedDate(Date d) {
        return getFormattedDate(d, DateFormat.MEDIUM);
    }

    public static String getShortFormattedDate(Date d) {
        return getFormattedDate(d, DateFormat.SHORT);
    }

    public static String getFormattedDate(Date d, int dateStyle) {
        UIViewRoot viewRoot = FacesContext.getCurrentInstance().getViewRoot();
        Locale locale = null;
        if (viewRoot != null) {
            locale = viewRoot.getLocale();
        } else {
            locale = Locale.ENGLISH;
        }

        DateFormat df = DateFormat.getDateInstance(dateStyle, locale);
        return df.format(d);
    }

    public static String getLongFormattedTime(Date d) {
        return getFormattedTime(d, DateFormat.LONG);
    }

    public static String getMediumFormattedTime(Date d) {
        return getFormattedTime(d, DateFormat.MEDIUM);
    }

    public static String getShortFormattedTime(Date d) {
        return getFormattedTime(d, DateFormat.SHORT);
    }

    public static String getFormattedTime(Date d, int timeStyle) {
        UIViewRoot viewRoot = FacesContext.getCurrentInstance().getViewRoot();
        Locale locale = null;
        if (viewRoot != null) {
            locale = viewRoot.getLocale();
        } else {
            locale = Locale.ENGLISH;
        }

        DateFormat df = DateFormat.getTimeInstance(timeStyle, locale);
        return df.format(d);
    }
}