src/com/lavans/luz2/http/session/SessionServiceLocal.java

   1 /* $Id: SessionServiceLocal.java 94 2008-12-18 11:07:17Z dobashi $\r
   2  * 作成日: 2006/01/20 14:29:33\r
   3  *\r
   4  */\r
   5 package com.lavans.luz2.http.session;\r
   6 \r
   7 import java.util.Collections;\r
   8 import java.util.Enumeration;\r
   9 import java.util.HashMap;\r
  10 import java.util.Map;\r
  11 \r
  12 import javax.servlet.http.HttpSession;\r
  13 \r
  14 import org.apache.commons.logging.Log;\r
  15 import org.apache.commons.logging.LogFactory;\r
  16 \r
  17 /**\r
  18  * SessionServiceApクラス。\r
  19  *\r
  20  * This is generated by lamen.\r
  21  */\r
  22 public class SessionServiceLocal{\r
  23         /** ロガー。debug用 */\r
  24         private static Log logger = LogFactory.getLog(SessionServiceLocal.class.getName());\r
  25 \r
  26         /** singleton実体 */\r
  27         private static SessionServiceLocal instance = null;\r
  28 \r
  29         /** セッションを格納するMap */\r
  30         private Map<String, HttpSession> sessionMap = Collections.synchronizedMap(new HashMap<String, HttpSession>());\r
  31 \r
  32         /**\r
  33          * コンストラクタ。\r
  34          * Singletonのため呼び出し不可。\r
  35          */\r
  36         protected SessionServiceLocal(){\r
  37 \r
  38         }\r
  39 \r
  40         /**\r
  41          * インスタンス取得メソッド。\r
  42          * @return\r
  43          */\r
  44         public static SessionServiceLocal getInstance(){\r
  45                 if(instance==null){\r
  46                         instance = new SessionServiceLocal();\r
  47                 }\r
  48                 return instance;\r
  49         }\r
  50 \r
  51         /**\r
  52          * getSession\r
  53          * リモートからの取得用。\r
  54          * 要求されたsessionIdが存在しないならnullを返す。\r
  55          */\r
  56         @SuppressWarnings("unchecked")\r
  57         public Map<String, Object> getRemoteSessionAttribute(String sessionId){\r
  58                 logger.debug("SessionServiceLocal#getRemoteSessionAttribute("+ sessionId +")");\r
  59                 HttpSession session = sessionMap.remove(sessionId);\r
  60                 // 要求されたsessionIdが存在しないならnullを返す。\r
  61                 if(session == null){\r
  62                         //logger.log("is not exist:"+ sessionId);\r
  63                         return null;\r
  64                 }\r
  65 \r
  66                 try{\r
  67                         Enumeration<String> attrNames = session.getAttributeNames();\r
  68                         // 属性の取得\r
  69                         Map<String, Object> attr = Collections.synchronizedMap(new HashMap<String, Object>());\r
  70                         while(attrNames.hasMoreElements()){\r
  71                                 String attrName = attrNames.nextElement();\r
  72                                 attr.put(attrName, session.getAttribute(attrName));\r
  73                         }\r
  74                         return attr;\r
  75                 }catch (Exception e) {\r
  76                         // sessionが無効な場合はgetAttributeNames()に失敗する。\r
  77                         return null;\r
  78                 }\r
  79 \r
  80         }\r
  81 \r
  82         /**\r
  83          * セッションをこのサービスに登録する。\r
  84          * @param session\r
  85          */\r
  86         public void setSession(HttpSession session){\r
  87                 logger.debug("set session:"+ session.getId());\r
  88                 sessionMap.put(session.getId(), session);\r
  89         }\r
  90 \r
  91         /**\r
  92          *\r
  93          * @param session\r
  94          * @return\r
  95          */\r
  96         public boolean exists(String  sessionId){\r
  97                 return sessionMap.containsKey(sessionId);\r
  98         }\r
  99 \r
 100         /**\r
 101          * invalidate\r
 102          */\r
 103         public Boolean invalidate(String sessionId){\r
 104                 HttpSession session = sessionMap.get(sessionId);\r
 105                 if(session==null){\r
 106 //                      logger.log(logLevel,"invalid sessionId invalidate():"+ sessionId);\r
 107                         return Boolean.FALSE;\r
 108                 }\r
 109                 session.invalidate();\r
 110                 logger.debug("remove:"+ sessionId);\r
 111                 sessionMap.remove(sessionId);\r
 112                 return Boolean.TRUE;\r
 113         }\r
 114 \r
 115 }\r
 116 \r