opengrok-sun/web/search.jsp

	search.jsp revision 125
394N/A<%--
394N/ACDDL HEADER START
394N/A
394N/AThe contents of this file are subject to the terms of the
394N/ACommon Development and Distribution License (the "License").
394N/AYou may not use this file except in compliance with the License.
394N/A
394N/ASee LICENSE.txt included in this distribution for the specific
394N/Alanguage governing permissions and limitations under the License.
394N/A
394N/AWhen distributing Covered Code, include this CDDL HEADER in each
394N/Afile and include the License file at LICENSE.txt.
394N/AIf applicable, add the following below this CDDL HEADER, with the
394N/Afields enclosed by brackets "[]" replaced with your own identifying
394N/Ainformation: Portions Copyright [yyyy] [name of copyright owner]
394N/A
394N/ACDDL HEADER END
394N/A
394N/ACopyright 2005 Sun Microsystems, Inc.  All rights reserved.
394N/AUse is subject to license terms.
1874N/A
394N/Aident   "%Z%%M% %I%     %E% SMI"
394N/A
394N/A--%><%@ page import = "javax.servlet.*,
394N/Ajava.lang.Integer,
394N/Ajavax.servlet.http.*,
394N/Ajava.util.Hashtable,
394N/Ajava.util.Vector,
618N/Ajava.util.Date,
394N/Ajava.util.ArrayList,
394N/Ajava.util.List,
844N/Ajava.lang.*,
844N/Ajava.io.*,
394N/Ajava.io.StringReader,
1273N/Aorg.opensolaris.opengrok.analysis.*,
394N/Aorg.opensolaris.opengrok.search.*,
394N/Aorg.opensolaris.opengrok.web.*,
394N/Aorg.opensolaris.opengrok.web.*,
394N/Aorg.opensolaris.opengrok.search.context.*,
394N/Aorg.opensolaris.opengrok.configuration.*,
394N/Aorg.apache.lucene.search.spell.LuceneDictionary,
1874N/Aorg.apache.lucene.search.spell.SpellChecker,
394N/Aorg.apache.lucene.store.FSDirectory,
1874N/Aorg.apache.lucene.analysis.*,
394N/Aorg.apache.lucene.document.*,
394N/Aorg.apache.lucene.index.*,
394N/Aorg.apache.lucene.search.*,
394N/Aorg.apache.lucene.queryParser.*"
394N/A%><%@ page session="false" %><%@ page errorPage="error.jsp" %><%
394N/ADate starttime = new Date();
String q    = request.getParameter("q");
String defs = request.getParameter("defs");
String refs = request.getParameter("refs");
String hist = request.getParameter("hist");
String path = request.getParameter("path");

%>
<%@ include file="projects.jspf" %>
<%
String sort = null;

final String LASTMODTIME = "lastmodtime";
final String RELEVANCY = "relevancy";

Cookie[] cookies = request.getCookies();
if (cookies != null) {
    for (Cookie cookie : cookies) {
        if (cookie.getName().equals("OpenGrok/sorting")) {
            sort = cookie.getValue();
            if (!LASTMODTIME.equals(sort) && !RELEVANCY.equals(sort)) {
                sort = null;
            }
            break;
        }
    }
}

String sortParam = request.getParameter("sort");
if (sortParam != null) {
    if (LASTMODTIME.equals(sortParam)) {
        sort = LASTMODTIME;
    } else if (RELEVANCY.equals(sortParam)) {
        sort = RELEVANCY;
    }
    if (sort != null) {
        Cookie cookie = new Cookie("OpenGrok/sorting", sort);
        response.addCookie(cookie);
    }
}

Hits hits = null;
String errorMsg = null;
String context = request.getContextPath();

if( q!= null && q.equals("")) q = null;
if( defs != null && defs.equals("")) defs = null;
if( refs != null && refs.equals("")) refs = null;
if( hist != null && hist.equals("")) hist = null;
if( path != null && path.equals("")) path = null;
if (project != null && project.equals("")) project = null;

if (q != null || defs != null || refs != null || hist != null || path != null) {
    Searcher searcher = null;           //the searcher used to open/search the index
    IndexReader ireader = null;         //the reader used to open/search the index
    Query query = null, defQuery = null;            //the Query created by the QueryParser

    int start = 0;             //the first index displayed on this page
    int max    = 25;            //the maximum items displayed on this page
    int thispage = 0;               //used for the for/next either max or
    String moreUrl = null;
    CompatibleAnalyser analyzer = new CompatibleAnalyser();
    String qstr = "";
    String result = "";
    try {
        String DATA_ROOT = env.getDataRootPath();
        if(DATA_ROOT.equals("")) {
            throw new Exception("DATA_ROOT parameter is not configured in web.xml!");
        }
        File data_root = new File(DATA_ROOT);
        if(!data_root.isDirectory()) {
            throw new Exception("DATA_ROOT parameter in web.xml does not exist or is not a directory!");
        }
        ireader = IndexReader.open(DATA_ROOT + "/index");
        searcher = new IndexSearcher(ireader);
        //String date = request.getParameter("date");
        try {
            start = Integer.parseInt(request.getParameter("start"));    //parse the max results first
            max = Integer.parseInt(request.getParameter("n"));      //then the start index
            if(max < 0 || (max % 10 != 0) || max > 50) max = 25;
            if(start < 0 ) start = 0;
        } catch (Exception e) {  }

        StringBuilder sb = new StringBuilder();
        if (q != null) {
            sb.append(q);
        }

        if (defs != null) {
            sb.append(" defs:(");
            sb.append(defs);
            sb.append(")");
        }

        if (refs != null) {
            sb.append(" refs:(");
            sb.append(refs);
            sb.append(")");
        }

        if (path != null) {
            sb.append(" path:(");
            sb.append(path);
            sb.append(")");
        }

        if (hist != null) {
            sb.append(" hist:(");
            sb.append(hist);
            sb.append(")");
        }

        if (project != null) {
            sb.append(" (");

            boolean first = true;
            for (String s : project.split(" ")) {
                if (first) {
                    first = false;
                } else {
                    sb.append(" OR ");
                }
                sb.append("project:(");
                sb.append(s);
                sb.append(")");
            }

            sb.append(")");
        }

        qstr = sb.toString();

        QueryParser qparser = new QueryParser("full", analyzer);
        qparser.setDefaultOperator(QueryParser.AND_OPERATOR);
        qparser.setAllowLeadingWildcard(env.isAllowLeadingWildcard());

        query = qparser.parse(qstr); //parse the
        if ("lastmodtime".equals(sort)) {
            hits = searcher.search(query, new Sort("date", true));
        } else {
            hits = searcher.search(query);
        }
        thispage = max;
    } catch (BooleanQuery.TooManyClauses e) {
        errorMsg = "<b>Error:</b> Too many results for wildcard!";
    } catch (ParseException e) {
        errorMsg = "<b>Error:</b><br/>" + Util.Htmlize(qstr) + "<br/>" + Util.Htmlize(e.getMessage());
    } catch (FileNotFoundException e) {
        errorMsg = "<b>Error:</b> Index database not found";
    } catch (Exception e) {
        errorMsg = "<b>Error:</b> " + Util.Htmlize(e.getMessage());
    }
    // @TODO fix me. I should try to figure out where the exact hit is instead
    // of returning a page with just _one_ entry in....
    if (hits != null && hits.length() == 1 && request.getServletPath().equals("/s") && (query != null && query instanceof TermQuery)) {
            response.sendRedirect(context + "/xref" + hits.doc(0).get("path")
            + "#" + ((TermQuery)query).getTerm().text());
    } else {
        %><?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
<head>
    <meta name="robots" content="noindex,nofollow">
    <link rel="icon" href="img/icon.png" type="image/png"/>
    <link rel="stylesheet" type="text/css" href="style.css"/>
    <link rel="stylesheet" type="text/css" href="print.css" media="print" />
    <link rel="alternate stylesheet" type="text/css" media="all" title="Paper White" href="print.css"/>
    <title>Search</title>
</head>
<body>
<div id="page">
    <div id="header">
       <%= getServletContext().getInitParameter("HEADER") %>
    </div>
<div id="Masthead"></div>
<div id="bar">
    <table border="0" width="100%"><tr><td><a href="<%=context%>" id="home">Home</a></td><td align="right"><%
     {
        StringBuffer url = request.getRequestURL();
        url.append('?');
        String querys = request.getQueryString();
        if (querys != null) {
            int idx = querys.indexOf("sort=");
            if (idx == -1) {
                url.append(querys);
                url.append('&');
            } else {
                url.append(querys.substring(0, idx));
            }
        }
        url.append("sort=");

        if (sort == null || RELEVANCY.equals(sort)) {
           url.append(LASTMODTIME);
           %><b>Sort by relevance</b> <a href="<%=url.toString()%>">Sort by last modified time</a><%
        } else {
           url.append(RELEVANCY);
           %><a href="<%=url.toString()%>">Sort by relevance</a> <b>Sort by last modified time</b><%
        }
      } %></td></tr></table>
</div>
<div id="menu">
   <%@ include file="menu.jspf"%>
</div>
<div id="results">
<%
if( hits == null || errorMsg != null) {
            %><%=errorMsg%><%
            } else if (hits.length() == 0) {
                File spellIndex = new File(env.getDataRootPath(), "spellIndex");

                if (spellIndex.exists()) {
                    FSDirectory spellDirectory = FSDirectory.getDirectory(spellIndex);
                    SpellChecker checker = new SpellChecker(spellDirectory);

                    Date sstart = new Date();

                    %><p><font color="#cc0000">Did you mean</font>:<%
                        String[] toks;
                        if(q != null) {
                            toks = q.split("[\t ]+");
                            if(toks != null){
                                for(int j=0; j<toks.length; j++) {
                                    if(toks[j].length() > 3) {
                                        String[] ret = checker.suggestSimilar(toks[j].toLowerCase(), 3);
                                        for(int i = 0;i < ret.length; i++) {
                    %> <a href=search?q=<%=ret[i]%>><%=ret[i]%></a> &nbsp; <%
                                        }
                                    }
                                }
                            }
                        }
                        if(refs != null) {
                            toks = refs.split("[\t ]+");
                            if(toks != null){
                                for(int j=0; j<toks.length; j++) {
                                    if(toks[j].length() > 3) {
                                        String[] ret = checker.suggestSimilar(toks[j].toLowerCase(), 3);
                                        for(int i = 0;i < ret.length; i++) {
                    %> <a href=search?q=<%=ret[i]%>><%=ret[i]%></a> &nbsp;  <%
                                }
                                }
                        }
                        }
                        }
                        if(defs != null) {
                            toks = defs.split("[\t ]+");
                            if(toks != null){
                                for(int j=0; j<toks.length; j++) {
                                    if(toks[j].length() > 3) {
                                        String[] ret = checker.suggestSimilar(toks[j].toLowerCase(), 3);
                                        for(int i = 0;i < ret.length; i++) {
                    %> <a href=search?q=<%=ret[i]%>><%=ret[i]%></a> &nbsp;  <%
                                        }
                                    }
                                }
                            }
                        }
                        spellDirectory.close();
                        %></p><%
                }
        %><p> Your search  <b><%=query.toString()%></b> did not match any files.
                    <br />
                    Suggestions:<br/><blockquote>- Make sure all terms are spelled correctly.<br/>
                        - Try different keywords.<br/>
                        - Try more general keywords.<br/>
                        - Use 'wil*' cards if you are looking for partial match.
                    </blockquote>
        </p><%
            } else { // We have a lots of results to show
                StringBuilder slider = null;
                if ( max < hits.length()) {
                    if((start + max) < hits.length()) {
                        thispage = max;
                    } else {
                        thispage = hits.length() - start;
                    }
                    String url =   (q == null ? "" : "&amp;q=" + Util.URIEncode(q) ) +
                            (defs == null ? "" : "&amp;defs=" + Util.URIEncode(defs)) +
                            (refs == null ? "" : "&amp;refs=" + Util.URIEncode(refs)) +
                            (path == null ? "" : "&amp;path=" + Util.URIEncode(path)) +
                            (hist == null ? "" : "&amp;hist=" + Util.URIEncode(hist)) +
                            (sort == null ? "" : "&amp;sort=" + Util.URIEncode(sort));

                    slider = new StringBuilder();
                    int labelStart =1;
                    int sstart = start - max* (start / max % 10 + 1) ;
                    if(sstart < 0) {
                        sstart = 0;
                        labelStart = 1;
                    } else {
                        labelStart = sstart/max + 1;
                    }
                    int label = labelStart;
                    int labelEnd = label + 11;
                    String arr;
                    for(int i=sstart; i<hits.length() && label <= labelEnd; i+= max) {
                        if (i <= start && start < i+ max) {
                            slider.append("<span class=\"sel\">" + label + "</span>");
                        } else {
                            if(label == labelStart && label != 1) {
                                arr = "&lt;&lt";
                            } else if(label == labelEnd && i < hits.length()) {
                                arr = "&gt;&gt;";
                            } else {
                                arr = label < 10 ? " " + label : String.valueOf(label);
                            }
                            slider.append("<a class=\"more\" href=\"search?n=" + max + "&amp;start=" + i + url + "\">"+
                                    arr + "</a>");
                        }
                        label++;
                    }
                } else {
                    thispage = hits.length() - start;      // set the max index to max or last
                }
        %>&nbsp; &nbsp; Searched <b><%=query.toString()%></b> (Results <b><%=start+1%> -
        <%=thispage+start%></b> of <b><%=hits.length()%></b>) sorted by <%=sort%> <p><%=slider != null ?
                    slider.toString(): ""%></p>
        <table width="100%" cellpadding="3" cellspacing="0" border="0"><%

                Context sourceContext = null;
                Summarizer summer = null;
                if (query != null) {
                    try{
                        sourceContext = new Context(query);
                        if(sourceContext != null)
                            summer = new Summarizer(query, analyzer);
                    } catch (Exception e) {

                    }
                }

                HistoryContext historyContext = null;
                try {
                    historyContext = new HistoryContext(query);
                } catch (Exception e) {
                }
                EftarFileReader ef = null;
                try{
                    ef = new EftarFileReader(env.getDataRootPath() + "/index/dtags.eftar");
                } catch (Exception e) {
                }
                Results.prettyPrintHTML(hits, start, start+thispage,
                        out,
                        sourceContext, historyContext, summer,
                        context + "/xref",
                        context + "/more",
                        env.getSourceRootPath(),
                        env.getDataRootPath(),
                        ef);
                if(ef != null) {
                    try{
                    ef.close();
                    } catch (IOException e) {
                    }
                }
        %></table><br/>
        <b> Completed in <%=(new Date()).getTime() - starttime.getTime()%> milliseconds </b> <br/>
        <%=slider != null ? "<p>" + slider + "</p>" : ""%>
        <%
            }
        %><br/></div><%@include file="foot.jspf"%><%
    }
    if (ireader != null)
        ireader.close();
} else { // Entry page show the map
    response.sendRedirect(context + "/index.jsp");
}
%>