DateTime.java

package org.springframework.roo.classpath.operations;

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

import org.apache.commons.lang3.builder.ToStringBuilder;

/**
 * Provides date format options for {@link Date} and {@link Calendar} types.
 * 
 * @author Stefan Schmidt
 * @since 1.0
 */
public enum DateTime {
  MEDIUM('M'), NONE('-'), SHORT('S');
  // Disabled due to incompatibility between Dojo and JDK dateformat handling
  // LONG('L'), FULL('F');

  /**
   * This method will return the DateTime style for the character of the style
   * argument. If no style is recognized it will return DateFormat.SHORT.
   * 
   * @param style the date or time style, ie 'S'
   * @return the DateTime style.
   */
  public static int parseDateFormat(final char style) {
    switch (style) {
      case 'M':
        return DateFormat.MEDIUM;
      case 'L':
        return DateFormat.LONG;
      case 'F':
        return DateFormat.FULL;
      default:
        return DateFormat.SHORT;
    }
  }

  /**
   * This method will return the DateTime style for the character of the style
   * argument. For example style of '-' will return DateTime.NULL.
   * 
   * @param style the date or time style, ie 'S'
   * @return the DateTime style for the provided style argument
   */
  public static DateTime parseDateTimeFormat(final char style) {
    switch (style) {
      case 'S':
        return DateTime.SHORT;
      case 'M':
        return DateTime.MEDIUM;
        // Disabled due to incompatibility between Dojo and JDK dateformat
        // handling
        // case 'L' : return DateTime.LONG;
        // case 'F' : return DateTime.FULL;
    }
    return DateTime.NONE;
  }

  private char shortKey;

  private DateTime(final char shortKey) {
    this.shortKey = shortKey;
  }

  public char getShortKey() {
    return shortKey;
  }

  @Override
  public String toString() {
    final ToStringBuilder builder = new ToStringBuilder(this);
    builder.append("name", name());
    builder.append("shortKey", shortKey);
    return builder.toString();
  }
}