ClientContext.java

/*
** Module   : ClientContext.java
** Abstract : Contextual data.
**
** Copyright (c) 2017, Golden Code Development Corporation.
**
** -#- -I- --Date-- --------------------------------Description-----------------------------------
** 001 HC  20170612 Initial version.
*/
/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero General Public License as
** published by the Free Software Foundation, either version 3 of the
** License, or (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
**
** Additional terms under GNU Affero GPL version 3 section 7:
**
**   Under Section 7 of the GNU Affero GPL version 3, the following additional
**   terms apply to the works covered under the License.  These additional terms
**   are non-permissive additional terms allowed under Section 7 of the GNU
**   Affero GPL version 3 and may not be removed by you.
**
**   0. Attribution Requirement.
**
**     You must preserve all legal notices or author attributions in the covered
**     work or Appropriate Legal Notices displayed by works containing the covered
**     work.  You may not remove from the covered work any author or developer
**     credit already included within the covered work.
**
**   1. No License To Use Trademarks.
**
**     This license does not grant any license or rights to use the trademarks
**     Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
**     of Golden Code Development Corporation. You are not authorized to use the
**     name Golden Code, FWD, or the names of any author or contributor, for
**     publicity purposes without written authorization.
**
**   2. No Misrepresentation of Affiliation.
**
**     You may not represent yourself as Golden Code Development Corporation or FWD.
**
**     You may not represent yourself for publicity purposes as associated with
**     Golden Code Development Corporation, FWD, or any author or contributor to
**     the covered work, without written authorization.
**
**   3. No Misrepresentation of Source or Origin.
**
**     You may not represent the covered work as solely your work.  All modified
**     versions of the covered work must be marked in a reasonable way to make it
**     clear that the modified work is not originating from Golden Code Development
**     Corporation or FWD.  All modified versions must contain the notices of
**     attribution required in this license.
*/
package com.goldencode.p2j.admin.client.application;

import com.google.gwt.user.client.*;

/**
 * The class holds contextual client data.
 */
public class ClientContext
{
   /** The singleton instance */
   private static ClientContext instance;

   /**
    * Default ctor.
    */
   private ClientContext()
   {
   }

   /**
    * Returns the singleton instance.
    *
    * @return  See above.
    */
   public static ClientContext instance()
   {
      if (instance == null)
      {
         instance = new ClientContext();
      }

      return instance;
   }

   /**
    * Sets the data into the context.
    *
    * @param   identity
    *          Logged in user.
    * @param   serverName
    *          Server name.
    */
   public void reset(String identity, String serverName)
   {

      Cookies.setCookie("identity", identity);
      Cookies.setCookie("serverName", serverName);
   }

   /**
    * User identity getter.
    *
    * @return  See above.
    */
   public String getIdentity()
   {
      return Cookies.getCookie("identity");
   }

   /**
    * Server name getter.
    *
    * @return  See above.
    */
   public String getServerName()
   {
      return Cookies.getCookie("serverName");
   }
   
   /**
    * Security cache serial number getter.
    *
    * @return  Security cache serial number or -1 if it is not set.
    */
   public int getSecurityCacheSerialNumber() throws NumberFormatException
   {
      String value = Cookies.getCookie("securityCacheSerialNumber");
      if (value == null || value.isEmpty())
      {
         return -1;
      }
      
      return Integer.parseInt(value);
   }
   
   /**
    * Security cache serial number setter.
    *
    * @param   serialNumber
    *          New security cache serial number
    */
   public void setSecurityCacheSerialNumber(int serialNumber) throws NumberFormatException
   {
      Cookies.setCookie("securityCacheSerialNumber", String.valueOf(serialNumber));
   }
}