utility.java

jsp网站开发四“酷”全书原码

package com.publish.shop.util.javabeans;

import java.util.Locale;
import java.util.ArrayList;
import java.util.ResourceBundle;
import java.text.MessageFormat;
import org.apache.commons.collections.MapUtils;
import org.apache.struts.Globals;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

public class Utility
{
  public static final String module = Utility.class.getName();
  /**
   * Global var here
   */
  // store resource bundle
  private static String csResourcePath = "com.bh.msg.ApplicationResources";

  public final static String COMMON_DELIMITER = "|";
  private static long incrementer = 9;

  public static String getResourcePath()
  {
    return csResourcePath;
  }
  public static void setResourcePath(String asResourcePath)
  {
    csResourcePath = asResourcePath;
  }

  /**
   * Gary: get user locale from langcd
   * @param asLangCd
   * @return
   */
  public static Locale getUserLocale(String asLangCd)
  {
    Locale lsUserLocale = Locale.ENGLISH;
    if(asLangCd.equals("zht"))
      lsUserLocale = Locale.TRADITIONAL_CHINESE;
    else if(asLangCd.equals("zhs"))
      lsUserLocale = Locale.SIMPLIFIED_CHINESE;
    else if(asLangCd.equals("en"))
      lsUserLocale = Locale.ENGLISH;

    return lsUserLocale;
  }

  public static Locale getUserLocale()
  {
    //the default locale is SIMPLIFIED_CHINESE
    return Locale.SIMPLIFIED_CHINESE;
  }

  /**
   * Gary: Functions to get message from resource
   * @param asKey
   * @param asLangCd
   * @return
   */
  public static String getMessage(String asKey)
  {
    return getMessage(asKey, getUserLocale());
  }

  public static String getMessage(String asKey, String asLangCd)
  {
    return getMessage(asKey, getUserLocale(asLangCd));
  }

  public static String getMessage(String asKey, Locale asLocale)
  {
    ResourceBundle bundle =
        ResourceBundle.getBundle(Utility.getResourcePath(), asLocale);
    return bundle.getString(asKey);
  }

  public static String getMessage(String asKey,
                                  String asLangCd,
                                  String arg0,
                                  String arg1,
                                  String arg2)
  {
    return getMessage(asKey, getUserLocale(asLangCd), arg0, arg1, arg2);
  }

  public static String getMessage(String asKey,
                                  Locale asLocale,
                                  String arg0,
                                  String arg1,
                                  String arg2)
  {
    String msg = getMessage(asKey, asLocale);
    String[] messageArgs = new String[3];
    messageArgs[0] = arg0;
    messageArgs[1] = arg1;
    messageArgs[2] = arg2;
    return MessageFormat.format(msg, messageArgs);
  }

  public static boolean isEmpty(String string)
  {
    boolean isEmpty = true;
    if (string != null && !"".equals(string) && string.trim().length() > 0)
      isEmpty = false;
    return isEmpty;
  }

  public static ArrayList generatePager(ArrayList listData,Pager pager){
    ArrayList list = new ArrayList();
    if(listData==null || listData.size()==0)
      return list;
    int size = listData.size();
    int length = pager.getLength();
    int pagerOffSet = pager.getPagerOffSet();
    pager.setSize(listData.size());
    Debug.println(pager.toString());

    int begin = 0;
    int end = 0;
    if(size>=pagerOffSet){
      begin = pagerOffSet;
      if(pagerOffSet+length-1>=size)
         end = size;
      else
         end =  pagerOffSet+length-1;
    }
    else{
      pagerOffSet = pagerOffSet-length;
      begin = pagerOffSet;
      if(pagerOffSet+length-1>=size)
         end = size;
      else
         end =  pagerOffSet+length-1;
    }
    pager.setPagerOffSet(pagerOffSet);
    pager.setBegin(begin);
    pager.setEnd(end);
    Debug.println("begin="+begin+";end="+end);
    for(int i=begin-1;i<end;i++){
      list.add(listData.get(i));
    }
    return list;
  }
}