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annotate lucene/src/luan/modules/lucene/Web_search.luan @ 287:4d53e9fc1bd9

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change lucene search to take lucene objects git-svn-id: https://luan-java.googlecode.com/svn/trunk@288 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 04 Dec 2014 09:27:20 +0000
parents 91be4027b2a8
children 5652cdea25f5
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1 import "luan:Io"
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2 import "luan:web/Http"
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3 import "luan:String"
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5
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6 local function basic_style() %>
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7 body {font-family:'Arial',sans-serif;font-size:16px}
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8 input {padding:.5em;border-radius:10px;border:1px solid #ccc;font-size:16px}
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9 input.btn {background:#3B619D;color:#FFF;padding:.5em 2em;font-size:20px}
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10 h1 {font-weight:bold;font-size: 20px}
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11 p {margin:1em 0 .2em}
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12 span.label {min-width:100px;display:inline-block;text-align:right}
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13 div.tip{color:#888;font-size:80%}
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14 table.results {margin-top:2em;border-collapse:collapse;font-size:90%}
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15 table.results th {background:#eee}
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16 table.results th,table.results td {border-left:1px solid #bbb;padding:.4em}
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17 <% end
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18
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19 local function form() %>
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20 <!DOCTYPE html>
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21 <html lang="en">
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22 <head>
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23 <title>Lucene Query</title>
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24 <style><% basic_style() %></style>
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25 </head>
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26 <body>
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27 <h1>Lucene Query</h1>
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28 <form name="form0" method="post">
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29 <p>
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30 <span class="label">Query:</span> <input name="query" size="60" value="Query.all_docs" />
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31 <div class="tip"><span class="label"></span> Query examples: Query.term{ type = 'user' }</div>
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32 </p>
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33 <p><span class="label">Max Rows:</span> <input name="rows" value="20" maxlength="5" onkeypress="return event.charCode >= 48 && event.charCode <= 57" style="width:3em"/></p>
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34 <p>
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35 <span class="label">Sort:</span> <input name="sort" size="60" />
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36 <div class="tip"><span class="label"></span> Sort examples: Query.sort{{ field = 'id', type='int' }}</div>
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37 </p>
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38 <p><input type="submit" class="btn"/></p>
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39 </form>
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40 <script>document.form0.query.focus();</script>
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41 </body>
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42 </html>
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43 <% end
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44
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45
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46 local function result(query,sort,headers,table) %>
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47 <!DOCTYPE html>
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48 <html lang="en">
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49 <head>
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50 <style><% basic_style() %></style>
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51 </head>
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52 <body>
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53 <h1>Lucene Query Results</h1>
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54 <p><span class="label">Query:</span> <b><%=query%></b></p>
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55 <p><span class="label">Sort:</span> <b><%=sort%></b></p>
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56 <table class="results">
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57 <tr>
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58 <th></th>
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59 <% for _, header in ipairs(headers) do %>
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60 <th><%=header%></th>
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61 <% end %>
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62 </tr>
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63 <% for i, row in ipairs(table) do %>
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64 <tr>
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65 <td><%=i%></td>
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66 <% for col in range(1, #headers) do %>
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67 <td><%= row[col] or "" %></td>
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68 <% end %>
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69 </tr>
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70 <% end %>
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71 </table>
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72 </body>
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73 </html>
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74 <% end
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75
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76
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77 local function index_of(tbl,val)
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78 for i, v in ipairs(tbl) do
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79 if v == val then
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80 return i
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81 end
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82 end
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83 local n = #tbl + 1
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84 tbl[n] = val
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85 return n
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86 end
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87
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88
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89 function of(index)
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90
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91 return { service = function()
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92 Io.stdout = Http.response.text_writer()
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93 local query_string = Http.request.parameters.query
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94 if query_string == nil then
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95 form()
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96 return
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97 end
287
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98 local query = load(query_string,"<query>",{Query=index.Query},true)()
285
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99 local rows = to_number(Http.request.parameters.rows)
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100 local sort = load(Http.request.parameters.sort,"<sort>",{Query=index.Query},true)()
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101 index.Searcher( function(searcher)
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102 local results, length, total_hits = searcher.search(query,rows,sort)
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103 local headers = {}
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104 local table = {}
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105 for doc in results do
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106 local row = {}
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107 for field, value in pairs(doc) do
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108 row[index_of(headers,field)] = value
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109 end
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110 table[#table+1] = row
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111 end
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112 result(query,sort,headers,table)
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113 end )
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114 end }
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115
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116 end