org.tsm.concharto.web.eventsearch.SearchSessionUtil.java Source code

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Here is the source code for org.tsm.concharto.web.eventsearch.SearchSessionUtil.java

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/*******************************************************************************
 * Copyright 2009 Time Space Map, LLC
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package org.tsm.concharto.web.eventsearch;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.web.util.WebUtils;
import org.tsm.concharto.model.Event;

/**
 * Static Utility class for updating search session objects
 * @author frank
 *
 */
public class SearchSessionUtil {
    public static void updateEventInSession(HttpServletRequest request, Event event) {
        updateEventInSession(request, event.getId(), event);
    }

    public static void deleteEventInSession(HttpServletRequest request, long eventId) {
        updateEventInSession(request, eventId, null);
    }

    @SuppressWarnings("unchecked")
    private static void updateEventInSession(HttpServletRequest request, Long eventId, Event event) {
        List<Event> events = (List<Event>) WebUtils.getSessionAttribute(request,
                SearchHelper.SESSION_EVENT_SEARCH_RESULTS);
        if (events != null) {
            for (int i = 0; i < events.size(); i++) {
                if (events.get(i).getId().equals(eventId)) {
                    if (event == null) {
                        //the event was deleted, so we should remove it here
                        events.remove(i);
                    } else {
                        //replace it
                        events.set(i, event);
                    }
                }
            }
            WebUtils.setSessionAttribute(request, SearchHelper.SESSION_EVENT_SEARCH_RESULTS, events);
        }
    }

}