internationalmanager.java

java版源代码,里面包含很多源代码,大家可以看看.

package com.trulytech.mantis.system;

import com.trulytech.mantis.result.DBResult;
import java.util.HashMap;
import java.util.ArrayList;
import com.trulytech.mantis.result.DBColumn;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletRequest;
import com.trulytech.mantis.util.ClientInfo;
import javax.servlet.jsp.PageContext;
import javax.servlet.ServletRequest;

/**
 *
 * <p>Title: Mantis</p>
 *
 * <p>Description: 国际化资源处理类</p>
 *
 * <p>Copyright: Copyright (c) 2002</p>
 *
 * <p>Company: </p>
 *
 * @author Wang Xian
 * @version 1.0
 */
public class InternationalManager {

  //是否初始化
  public static boolean isInited = false;

  /**
   * 初始化资源
   * @throws Exception
   */
  public static void init() throws Exception {
    if (isInited)
      return;

    logWriter.Info("读取国际化资源...");
    DBResult Result = CacheManager.getCache(com.trulytech.mantis.system.
                                            Properties.InternationalResource);
    int nSize=Result.ResultBuffer.size();
    for (int i = 0; i < nSize; i++) {
      ArrayList rec = (ArrayList) Result.ResultBuffer.get(i);
      setResources( ( (DBColumn) rec.get(0)).Value.toUpperCase(),
                   ( (DBColumn) rec.get(1)).Value.toUpperCase(),
                   ( (DBColumn) rec.get(2)).Value);

    }
    logWriter.Info("读取国际化资源成功");
    isInited = true;
  }

  /**
   * 设置资源
   * @param Language String
   * @param Key String
   * @param Message String
   */
  private static void setResources(String Language, String Key, String Message) {
    HashMap map = (HashMap) com.trulytech.mantis.system.Properties.Message.get(
        Language);
    if (map == null) {
      HashMap rec = new HashMap();
      rec.put(Key, Message);
      com.trulytech.mantis.system.Properties.Message.put(Language, rec);
    }
    else {
      map.put(Key, Message);
      com.trulytech.mantis.system.Properties.Message.put(Language, map);
    }
  }

  /**
   * 读取资源
   * @param Language String
   * @param Key String
   * @return String
   */
  public static String getResource(String Language, String Key) {
     if (!isInited)
      return "%" + Language + "." + Key + "%";
    else {
      HashMap map = (HashMap) com.trulytech.mantis.system.Properties.Message.
          get(Language);
      if (map == null) {
        map = (HashMap) com.trulytech.mantis.system.Properties.Message.
            get(com.trulytech.mantis.system.Properties.DefaultLanguage);
        if (map == null)
          return "%" + Language + "." + Key + "%";
        else {
          if ( (String) map.get(Key) == null)
            return "%" + Language + "." + Key + "%";
          else
            return (String) map.get(Key);

        }
      }
      else {
        if ( (String) map.get(Key) == null)
          return "%" + Language + "." + Key + "%";
        else
          return (String) map.get(Key);
      }
    }

  }

  /**
   * 通过PageContext中的语言读取资源
   * @param context PageContext
   * @param Key String
   * @return String
   */
  public static String getResource(PageContext context, String Key) {
    HttpSession session = context.getSession();
    ServletRequest req = context.getRequest();
    String Language = null;
    if (session == null) {

      Language = req.getLocale().toString();

    }

    //获得Session中的Language对象


    if (session.getAttribute(com.trulytech.mantis.system.Properties.
                             Session_Language) == null)
      Language = req.getLocale().toString();
    else
      Language = (String) session.getAttribute(com.trulytech.mantis.system.
                                               Properties.
                                               Session_Language);

    return getResource(Language.toUpperCase(), Key.toUpperCase());

  }

  /**
   * 获得资源信息
   * @param req HttpServletRequest
   * @param Key String
   * @return String
   */
  public static String getResource(HttpServletRequest req, String Key) {
    HttpSession session = req.getSession(false);
    String Language = null;
    if (session == null) {

      Language = req.getLocale().toString();

    }

    //获得Session中的Language对象


    if (session.getAttribute(com.trulytech.mantis.system.Properties.
                             Session_Language) == null)
      Language = req.getLocale().toString();
    else
      Language = (String) session.getAttribute(com.trulytech.mantis.system.
                                               Properties.
                                               Session_Language);

    return getResource(Language.toUpperCase(), Key.toUpperCase());

  }

}