/*
* Copyright (c) 2003-2011, Simon Brown
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* - Neither the name of Pebble nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package net.sourceforge.pebble.web.action;
import net.sourceforge.pebble.Constants;
import net.sourceforge.pebble.domain.Blog;
import net.sourceforge.pebble.search.SearchException;
import net.sourceforge.pebble.search.SearchHit;
import net.sourceforge.pebble.search.SearchResults;
import net.sourceforge.pebble.util.Pageable;
import net.sourceforge.pebble.web.view.RedirectView;
import net.sourceforge.pebble.web.view.View;
import net.sourceforge.pebble.web.view.impl.AdvancedSearchView;
import net.sourceforge.pebble.web.view.impl.SearchResultsView;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.UnsupportedEncodingException;
/**
* Performs a search on the current blog.
*
* @author Simon Brown
*/
public class SearchAction extends Action {
/** the log used for this action */
private static final Log log = LogFactory.getLog(SearchAction.class);
/** the number of results to show per page */
static final int PAGE_SIZE = 20;
/**
* Peforms the processing associated with this action.
*
* @param request the HttpServletRequest instance
* @param response the HttpServletResponse instance
* @return the name of the next view
*/
public View process(HttpServletRequest request, HttpServletResponse response) throws ServletException {
Blog blog = (Blog)getModel().get(Constants.BLOG_KEY);
String query = request.getParameter("query");
if (query == null || query.trim().length() == 0) {
if (blog instanceof Blog) {
return new AdvancedSearchView();
}
}
String pageAsString = request.getParameter("page");
int page = 1;
if (pageAsString == null || pageAsString.length() == 0) {
page = 1;
} else {
try {
page = Integer.parseInt(pageAsString);
} catch (NumberFormatException nfe) {
}
}
try {
SearchResults results = blog.getSearchIndex().search(query);
if (results.getNumberOfHits() == 1) {
// if there is only one hit, redirect the user to it without the
// search results page
SearchHit hit = (SearchHit)results.getHits().get(0);
return new RedirectView(hit.getPermalink());
} else {
// show all results on the search results page
String sort = request.getParameter("sort");
if (sort != null && sort.equalsIgnoreCase("date")) {
results.sortByDateDescending();
} else {
results.sortByScoreDescending();
}
Pageable pageable = new Pageable(results.getHits());
pageable.setPageSize(PAGE_SIZE);
pageable.setPage(page);
try {
getModel().put("searchResults", results);
getModel().put("pageable", pageable);
getModel().put("query", java.net.URLEncoder.encode(query, blog.getCharacterEncoding()));
} catch (UnsupportedEncodingException uee) {
log.error(uee);
}
return new SearchResultsView();
}
} catch (SearchException se) {
throw new ServletException(se);
}
}
}