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Lift Framework example source code file (DateTimeConverter.scala)

This example Lift Framework source code file (DateTimeConverter.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Lift Framework tags/keywords

box, box, date, date, datetimeconverter, datetimeconverter, defaultdatetimeconverter, string, string, util

The Lift Framework DateTimeConverter.scala source code

/*
 * Copyright 2007-2011 WorldWide Conferencing, LLC
 *
 * 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 net.liftweb 
package util 


import Helpers.{tryo, internetDateFormatter=>internetDateFormat, dateFormatter=>dateFormat, hourFormat, timeFormatter=>timeFormat}
import net.liftweb.common._
import java.util.Date

/**
 * Implement this trait to specify a set of rules to parse and format dates
 * @author nafg 
*/
trait DateTimeConverter {  
  /**
   * A function to format a Date as a date and time
   */
  def formatDateTime(d: Date): String
  
  /**
   * A function to format a Date as a date only
  */
  def formatDate(d: Date): String
  
  /**
   * A function to format a Date as a time.
  */
  def formatTime(d: Date): String

  /**
   * A function that parses a String representing a date and time into a Date
   */
   def parseDateTime(s: String): Box[Date]
   
  /**
   * A function that parses a String representing a date into a Date.
   */
   def parseDate(s: String): Box[Date]
  
  /**
   * A function that parses a String representing a time into a Date.
   */
   def parseTime(s: String): Box[Date]
}

/**
 * A default implementation of DateTimeConverter that uses (Time)Helpers
*/
object DefaultDateTimeConverter extends DateTimeConverter {
  def formatDateTime(d: Date) = internetDateFormat.format(d)
  def formatDate(d: Date) = dateFormat.format(d)
  /**  Uses Helpers.hourFormat which includes seconds but not time zone */
  def formatTime(d: Date) = hourFormat.format(d)
  
  def parseDateTime(s: String) = tryo { internetDateFormat.parse(s) }
  def parseDate(s: String) = tryo { dateFormat.parse(s) }
  /** Tries Helpers.hourFormat and Helpers.timeFormat */
  def parseTime(s: String) = tryo{hourFormat.parse(s)} or tryo{timeFormat.parse(s)}
}

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