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annotate lucene/src/luan/modules/lucene/Web_search.luan @ 321:7f7708e8fdd4

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remove import statement git-svn-id: https://luan-java.googlecode.com/svn/trunk@322 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Sun, 08 Feb 2015 07:26:20 +0000
parents d6cce1cc8948
children 78a6a71afbfd
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rev   line source
321
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1 local Luan = require "luan:Luan"
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2 local load = Luan.load
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3 local to_number = Luan.to_number
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4 local pairs = Luan.pairs
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5 local ipairs = Luan.ipairs
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6 local range = Luan.range
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7 local Io = require "luan:Io"
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8 local Http = require "luan:web/Http"
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9 local String = require "luan:String"
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12 local function basic_style() %>
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13 body {font-family:'Arial',sans-serif;font-size:16px;padding:1em 2em}
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14 input {padding:.5em;border-radius:10px;border:1px solid #ccc;font-size:16px}
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15 input.btn {background:#3B619D;color:#FFF;padding:.5em 2em;font-size:20px}
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16 h1 {font-weight:bold;font-size: 20px}
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17 p {margin:1em 0 .2em}
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18 span.label {min-width:100px;display:inline-block;text-align:right}
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19 div.tip{color:#888;font-size:80%}
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20 table.results {margin-top:2em;border-collapse:collapse;font-size:90%}
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21 table.results th {background:#eee}
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22 table.results th,table.results td {border-left:1px solid #bbb;padding:.4em}
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23 table.results tr:nth-child(odd) td {background:#f8f8f8}
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24 <% end
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25
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26 local function form() %>
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27 <!DOCTYPE html>
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28 <html lang="en">
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29 <head>
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30 <title>Lucene Query</title>
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31 <style><% basic_style() %></style>
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32 </head>
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33 <body>
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34 <h1>Lucene Query</h1>
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35 <form name="form0" method="post">
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36 <p>
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37 <span class="label">Query:</span> <input name="query" size="60" value="Query.all_docs" />
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38 <div class="tip"><span class="label"></span> Query examples: <i>Query.term{ type = 'user' }</i> or <i>"type:user AND name:Joe"</i></div>
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39 </p>
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40 <p><span class="label">Max Rows:</span> <input name="rows" value="100" maxlength="5" onkeypress="return event.charCode >= 48 && event.charCode <= 57" style="width:3em"/></p>
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41 <p>
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42 <span class="label">Sort:</span> <input name="sort" size="60" />
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43 <div class="tip"><span class="label"></span> Sort examples: Query.sort{{ field = 'id', type='int' }}</div>
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44 </p>
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45 <p><input type="submit" class="btn"/></p>
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46 </form>
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47 <script>document.form0.query.focus();</script>
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48 </body>
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49 </html>
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50 <% end
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51
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52
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53 local function result(query,sort,headers,table) %>
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54 <!DOCTYPE html>
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55 <html lang="en">
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56 <head>
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57 <style><% basic_style() %></style>
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58 </head>
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59 <body>
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60 <h1>Lucene Query Results</h1>
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61 <p><span class="label">Query:</span> <b><%=query%></b></p>
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62 <p><span class="label">Sort:</span> <b><%=sort%></b></p>
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63 <table class="results">
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64 <tr>
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65 <th></th>
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66 <% for _, header in ipairs(headers) do %>
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67 <th><%=header%></th>
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68 <% end %>
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69 </tr>
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70 <% for i, row in ipairs(table) do %>
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71 <tr>
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72 <td><%=i%></td>
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73 <% for col in range(1, #headers) do %>
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74 <td><%= row[col] or "" %></td>
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75 <% end %>
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76 </tr>
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77 <% end %>
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78 </table>
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79 </body>
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80 </html>
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81 <% end
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82
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83
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84 local function index_of(tbl,val)
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85 for i, v in ipairs(tbl) do
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86 if v == val then
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87 return i
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88 end
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89 end
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90 local n = #tbl + 1
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91 tbl[n] = val
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92 return n
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93 end
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94
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95
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96 function of(index)
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97
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98 return { service = function()
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99 Io.stdout = Http.response.text_writer()
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100 local query_string = Http.request.parameters.query
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101 if query_string == nil then
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102 form()
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103 return
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104 end
287
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105 local query = load(query_string,"<query>",{Query=index.Query},true)()
285
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106 local rows = to_number(Http.request.parameters.rows)
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107 local sort = load(Http.request.parameters.sort,"<sort>",{Query=index.Query},true)()
285
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108 index.Searcher( function(searcher)
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109 local results, length, total_hits = searcher.search(query,rows,sort)
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110 local headers = {}
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111 local table = {}
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112 for doc in results do
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113 local row = {}
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114 for field, value in pairs(doc) do
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115 row[index_of(headers,field)] = value
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116 end
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117 table[#table+1] = row
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118 end
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119 result(query,sort,headers,table)
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120 end )
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121 end }
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122
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123 end