searchaction.java

### File Source: searchaction.java

             /*
        P/P   *  Method: net.sourceforge.pebble.web.action.SearchAction__static_init
              *
              *  Postconditions:
              *    init'ed(log)
              */
         1  /*
         2   * Copyright (c) 2003-2006, Simon Brown
         3   * All rights reserved.
         4   *
         5   * Redistribution and use in source and binary forms, with or without
         6   * modification, are permitted provided that the following conditions are met:
         7   *
         8   *   - Redistributions of source code must retain the above copyright
         9   *     notice, this list of conditions and the following disclaimer.
        10   *
        11   *   - Redistributions in binary form must reproduce the above copyright
        12   *     notice, this list of conditions and the following disclaimer in
        13   *     the documentation and/or other materials provided with the
        14   *     distribution.
        15   *
        16   *   - Neither the name of Pebble nor the names of its contributors may
        17   *     be used to endorse or promote products derived from this software
        18   *     without specific prior written permission.
        19   *
        20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
        21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
        24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
        25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
        26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
        27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
        28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
        29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        30   * POSSIBILITY OF SUCH DAMAGE.
        31   */
        32  package net.sourceforge.pebble.web.action;
        33
        34  import net.sourceforge.pebble.Constants;
        35  import net.sourceforge.pebble.domain.Blog;
        36  import net.sourceforge.pebble.search.SearchException;
        37  import net.sourceforge.pebble.search.SearchHit;
        38  import net.sourceforge.pebble.search.SearchResults;
        39  import net.sourceforge.pebble.util.Pageable;
        40  import net.sourceforge.pebble.web.view.RedirectView;
        41  import net.sourceforge.pebble.web.view.View;
        42  import net.sourceforge.pebble.web.view.impl.AdvancedSearchView;
        43  import net.sourceforge.pebble.web.view.impl.SearchResultsView;
        44  import org.apache.commons.logging.Log;
        45  import org.apache.commons.logging.LogFactory;
        46
             /*
        P/P   *  Method: void net.sourceforge.pebble.web.action.SearchAction()
              */
        47  import javax.servlet.ServletException;
        48  import javax.servlet.http.HttpServletRequest;
        49  import javax.servlet.http.HttpServletResponse;
        50  import java.io.UnsupportedEncodingException;
        51
        52  /**
        53   * Performs a search on the current blog.
        54   *
        55   * @author    Simon Brown
        56   */
        57  public class SearchAction extends Action {
        58
        59    /** the log used for this action */
        60    private static final Log log = LogFactory.getLog(SearchAction.class);
        61
        62    /** the number of results to show per page */
        63    static final int PAGE_SIZE = 20;
        64
        65
        66    /**
        67     * Peforms the processing associated with this action.
        68     *
        69     * @param request  the HttpServletRequest instance
        70     * @param response the HttpServletResponse instance
        71     * @return the name of the next view
        72     */
        73    public View process(HttpServletRequest request, HttpServletResponse response) throws ServletException {
        74
                 /*
        P/P       *  Method: View process(HttpServletRequest, HttpServletResponse)
                  *
                  *  Preconditions:
                  *    request != null
                  *    this.model != null
                  *    this.model.data != null
                  *
                  *  Presumptions:
                  *    java.util.HashMap:get(...)@63 != null
                  *    java.util.List:get(...)@101 != null
                  *    net.sourceforge.pebble.domain.Blog:getSearchIndex(...)@96 != null
                  *    net.sourceforge.pebble.index.SearchIndex:search(...)@96 != null
                  *    org.apache.commons.logging.LogFactory:getLog(...)@60 != null
                  *    ...
                  *
                  *  Postconditions:
                  *    return_value in Addr_Set{&new AdvancedSearchView(process#1),&new SearchResultsView(process#4),&new RedirectView(process#2)}
                  *    new AdvancedSearchView(process#1) num objects <= 1
                  *    new RedirectView(process#2) num objects <= 1
                  *    new SearchResultsView(process#4) num objects <= 1
                  *
                  *  Test Vectors:
                  *    java.lang.String:equalsIgnoreCase(...)@106: {0}, {1}
                  *    java.lang.String:length(...)@78: {1..232-1}, {0}
                  *    java.lang.String:length(...)@86: {1..232-1}, {0}
                  *    java.util.List:size(...)@112: {-231..0, 2..232-1}, {1}
                  *    javax.servlet.http.HttpServletRequest:getParameter(...)@105: Addr_Set{null}, Inverse{null}
                  *    javax.servlet.http.HttpServletRequest:getParameter(...)@76: Addr_Set{null}, Inverse{null}
                  *    javax.servlet.http.HttpServletRequest:getParameter(...)@84: Addr_Set{null}, Inverse{null}
                  */
        75      Blog blog = (Blog)getModel().get(Constants.BLOG_KEY);
        76      String query = request.getParameter("query");
        77
        78      if (query == null || query.trim().length() == 0) {
        79        if (blog instanceof Blog) {
        80          return new AdvancedSearchView();
        81        }
        82      }
        83
        84      String pageAsString = request.getParameter("page");
        85      int page = 1;
        86      if (pageAsString == null || pageAsString.length() == 0) {
        87        page = 1;
        88      } else {
        89        try {
        90          page = Integer.parseInt(pageAsString);
        91        } catch (NumberFormatException nfe) {
        92        }
        93      }
        94
        95      try {
        96        SearchResults results = blog.getSearchIndex().search(query);
        97
        98        if (results.getNumberOfHits() == 1) {
        99          // if there is only one hit, redirect the user to it without the
       100          // search results page
       101          SearchHit hit = (SearchHit)results.getHits().get(0);
       102          return new RedirectView(hit.getPermalink());
       103        } else {
       104          // show all results on the search results page
       105          String sort = request.getParameter("sort");
       106          if (sort != null && sort.equalsIgnoreCase("date")) {
       107            results.sortByDateDescending();
       108          } else {
       109            results.sortByScoreDescending();
       110          }
       111
       112          Pageable pageable = new Pageable(results.getHits());
       113          pageable.setPageSize(PAGE_SIZE);
       114          pageable.setPage(page);
       115
       116          try {
       117            getModel().put("searchResults", results);
       118            getModel().put("pageable", pageable);
       119            getModel().put("query", java.net.URLEncoder.encode(query, blog.getCharacterEncoding()));
       120          } catch (UnsupportedEncodingException uee) {
       121            log.error(uee);
       122          }
       123
       124          return new SearchResultsView();
       125        }
       126      } catch (SearchException se) {
       127        throw new ServletException(se);
       128      }
       129    }
       130
       131  }

SofCheck Inspector Build Version : 2.22510

searchaction.java | 2010-Jun-25 19:40:34
searchaction.class | 2010-Jul-19 20:23:38