SessionResolver.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2015 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * 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 should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.elephant.zkoss;
 
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.turro.annotation.ElephantSessionResolver;
import org.turro.elephant.context.ISessionResolver;
import org.zkoss.web.fn.ServletFns;
import org.zkoss.zk.ui.Sessions;
 
@ElephantSessionResolver
public class SessionResolver implements ISessionResolver {
 
  @Override
  public HttpSession getSession(boolean create) {
    HttpSession ses = null;
    if(getRequest() != null) {
      ses = getRequest().getSession(create);
    }
    if(ses == null) {
      ses = (HttpSession) Sessions.getCurrent(create).getNativeSession();
    }
    return ses;
  }
 
  @Override
  public HttpServletRequest getRequest() {
    try {
      return (HttpServletRequest) ServletFns.getCurrentRequest();
    } catch(Exception ex) {
      return null;
    }
  }
 
  @Override
  public HttpServletResponse getResponse() {
    try {
      return (HttpServletResponse) ServletFns.getCurrentResponse();
    } catch(Exception ex) {
      return null;
    }
  }
 
}