1 | /**************************************************************************
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2 | *
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3 | * mgstat.c -- Program to generate statistics on a text collection
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4 | * Copyright (C) 1994 Neil Sharman
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5 | *
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6 | * This program is free software; you can redistribute it and/or modify
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7 | * it under the terms of the GNU General Public License as published by
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8 | * the Free Software Foundation; either version 2 of the License, or
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9 | * (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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19 | *
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20 | * $Id: mgstat.c 16583 2008-07-29 10:20:36Z davidb $
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21 | *
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22 | **************************************************************************/
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23 |
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24 | #include "sysfuncs.h"
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25 |
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26 | #include "netorder.h" /* [RPAP - Jan 97: Endian Ordering] */
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27 |
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28 | #include "mg_files.h"
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29 | #include "locallib.h"
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30 | #include "mg.h"
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31 | #include "words.h"
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32 | #include "invf.h"
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33 | #include "text.h"
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34 | #include "longlong.h"
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35 |
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36 | /*
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37 | $Log$
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38 | Revision 1.1 2003/02/20 21:18:24 mdewsnip
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39 | Addition of MG package for search and retrieval
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40 |
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41 | Revision 1.2 2001/09/21 12:46:42 kjm18
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42 | updated mg to be in line with mg_1.3f. Now uses long long for some variables
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43 | to enable indexing of very large collections.
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44 |
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45 | Revision 1.1 1999/08/10 21:18:19 sjboddie
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46 | renamed mg-1.3d directory mg
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47 |
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48 | Revision 1.2 1998/11/25 07:55:50 rjmcnab
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49 |
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50 | Modified mg to that you can specify the stemmer you want
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51 | to use via a command line option. You specify it to
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52 | mg_passes during the build process. The number of the
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53 | stemmer that you used is stored within the inverted
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54 | dictionary header and the stemmed dictionary header so
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55 | the correct stemmer is used in later stages of building
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56 | and querying.
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57 |
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58 | Revision 1.1 1998/11/17 09:35:31 rjmcnab
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59 | *** empty log message ***
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60 |
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61 | * Revision 1.2 1994/09/20 04:41:59 tes
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62 | * For version 1.1
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63 | *
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64 | */
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65 |
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66 | static char *RCSID = "$Id: mgstat.c 16583 2008-07-29 10:20:36Z davidb $";
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67 |
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68 | char *search_for_collection (char *name);
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69 | int process_file (char *, char *, int);
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70 | void ProcessDict (char *);
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71 | void ProcessStem (char *);
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72 | long ProcessStemBlk (char *name); /* [RPAP - Jan 97: Stem Index Change] */
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73 |
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74 | static mg_ullong inputbytes = 0;
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75 | static mg_ullong total = 0;
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76 |
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77 |
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78 |
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79 |
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80 |
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81 | int main (int argc, char **argv)
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82 | {
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83 | mg_ullong sub_total;
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84 | int fast;
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85 | char *file_name = "";
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86 | int ch;
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87 | int exact = 0;
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88 | long indexed = 0; /* [RPAP - Jan 97: Stem Index Change] */
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89 | opterr = 0;
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90 | while ((ch = getopt (argc, argv, "Ehf:d:")) != -1)
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91 | switch (ch)
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92 | {
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93 | case 'E':
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94 | exact = 1;
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95 | break;
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96 | case 'f': /* input file */
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97 | file_name = optarg;
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98 | break;
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99 | case 'd':
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100 | set_basepath (optarg);
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101 | break;
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102 | case 'h':
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103 | case '?':
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104 | fprintf (stderr, "usage: %s [-f input_file]"
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105 | "[-d data directory] [-h]\n", argv[0]);
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106 | exit (1);
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107 | }
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108 |
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109 | if (optind < argc)
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110 | file_name = search_for_collection (argv[optind]);
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111 |
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112 | ProcessDict (file_name);
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113 | ProcessStem (file_name);
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114 | indexed = ProcessStemBlk (file_name); /* [RPAP - Jan 97: Stem Index Change] */
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115 |
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116 | {
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117 | char Name[256];
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118 | char *s;
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119 | sprintf (Name, FILE_NAME_FORMAT, get_basepath (), file_name, "");
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120 | s = strrchr (Name, '/');
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121 | if (s)
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122 | *s = '\0';
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123 | printf ("\nThe collection is in \"%s\"\n", Name);
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124 | }
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125 |
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126 |
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127 | printf ("\n\t\tFiles required by mgquery\n");
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128 | process_file (file_name, TEXT_SUFFIX, exact);
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129 | process_file (file_name, INVF_SUFFIX, exact);
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130 | process_file (file_name, TEXT_IDX_WGT_SUFFIX, exact);
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131 | process_file (file_name, APPROX_WEIGHTS_SUFFIX, exact);
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132 | process_file (file_name, INVF_DICT_BLOCKED_SUFFIX, exact);
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133 |
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134 | /* [RPAP - Jan 97: Stem Index Change] */
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135 | if (indexed)
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136 | {
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137 | process_file (file_name, INVF_DICT_BLOCKED_1_SUFFIX, exact);
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138 | process_file (file_name, INVF_DICT_BLOCKED_2_SUFFIX, exact);
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139 | process_file (file_name, INVF_DICT_BLOCKED_3_SUFFIX, exact);
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140 | }
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141 |
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142 | fast = process_file (file_name, TEXT_DICT_FAST_SUFFIX, exact);
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143 | if (!fast)
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144 | {
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145 | process_file (file_name, TEXT_DICT_SUFFIX, exact);
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146 | process_file (file_name, TEXT_DICT_AUX_SUFFIX, exact);
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147 | }
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148 |
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149 |
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150 | process_file (NULL, "SUB TOTAL", exact);
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151 | sub_total = total;
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152 | total = 0;
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153 |
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154 | printf ("\n\t\tFiles NOT required by mgquery\n");
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155 | if (fast)
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156 | {
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157 | process_file (file_name, TEXT_DICT_SUFFIX, exact);
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158 | process_file (file_name, TEXT_DICT_AUX_SUFFIX, exact);
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159 | }
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160 | process_file (file_name, INVF_DICT_SUFFIX, exact);
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161 | process_file (file_name, INVF_IDX_SUFFIX, exact);
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162 | process_file (file_name, TEXT_STATS_DICT_SUFFIX, exact);
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163 | process_file (file_name, TEXT_IDX_SUFFIX, exact);
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164 | process_file (file_name, WEIGHTS_SUFFIX, exact);
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165 | process_file (file_name, INVF_CHUNK_SUFFIX, exact);
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166 | process_file (file_name, INVF_CHUNK_TRANS_SUFFIX, exact);
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167 | process_file (file_name, INVF_DICT_HASH_SUFFIX, exact);
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168 | process_file (file_name, INVF_PARAGRAPH_SUFFIX, exact);
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169 | process_file (NULL, "SUB TOTAL", exact);
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170 | total += sub_total;
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171 | printf ("\n");
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172 | process_file (NULL, "TOTAL", exact);
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173 | return 0;
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174 |
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175 | }
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176 |
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177 |
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178 |
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179 | char *
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180 | search_for_collection (char *name)
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181 | {
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182 | char *dir = get_basepath ();
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183 | static char buffer[512];
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184 | struct stat stat_buf;
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185 |
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186 | /* Look in the current directory first */
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187 | if (stat (name, &stat_buf) != -1)
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188 | {
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189 | if (S_ISDIR(stat_buf.st_mode))
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190 | {
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191 | /* The name is a directory */
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192 | sprintf (buffer, "%s/%s", name, name);
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193 | set_basepath (".");
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194 | return buffer;
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195 | }
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196 | }
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197 |
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198 | sprintf (buffer, "%s.text", name);
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199 | if (stat (buffer, &stat_buf) != -1)
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200 | {
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201 | if (S_ISREG(stat_buf.st_mode))
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202 | {
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203 | /* The name is a directory */
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204 | set_basepath (".");
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205 | return name;
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206 | }
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207 | }
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208 | sprintf (buffer, "%s/%s", dir, name);
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209 | if (stat (buffer, &stat_buf) != -1)
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210 | {
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211 | if (S_ISDIR(stat_buf.st_mode))
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212 | {
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213 | /* The name is a directory */
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214 | sprintf (buffer, "%s/%s", name, name);
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215 | return buffer;
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216 | }
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217 | }
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218 | return name;
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219 | }
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220 |
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221 |
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222 |
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223 |
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224 |
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225 |
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226 | void
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227 | ProcessDict (char *name)
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228 | {
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229 | FILE *f;
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230 | compression_dict_header cdh;
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231 | int have_cdh = 0;
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232 | compressed_text_header cth;
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233 | int have_cth = 0;
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234 |
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235 | if ((f = open_file (name, TEXT_DICT_SUFFIX, "rb", MAGIC_DICT, MG_MESSAGE))) /* [RPAP - Feb 97: WIN32 Port] */
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236 | {
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237 | Read_cdh (f, &cdh, NULL, NULL);
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238 | fclose (f);
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239 | have_cdh = 1;
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240 | }
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241 |
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242 | if ((f = open_file (name, TEXT_SUFFIX, "rb", MAGIC_TEXT, MG_MESSAGE))) /* [RPAP - Feb 97: WIN32 Port] */
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243 | {
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244 | fread ((char *) &cth, sizeof (cth), 1, f);
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245 |
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246 | /* [RPAP - Jan 97: Endian Ordering] */
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247 | NTOHUL(cth.num_of_docs);
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248 | NTOHD(cth.num_of_bytes); /* [RJM 07/97: 4G limit] */
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249 | NTOHUL(cth.num_of_words);
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250 | NTOHUL(cth.length_of_longest_doc);
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251 | NTOHD(cth.ratio);
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252 |
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253 | fclose (f);
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254 | have_cth = 1;
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255 | }
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256 |
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257 | if (have_cth)
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258 | {
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259 | inputbytes = cth.num_of_bytes;
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260 | printf ("Input bytes : %10" ULL_FS ", %8.2f Mbyte\n",
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261 | cth.num_of_bytes, (double) cth.num_of_bytes / 1024 / 1024);
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262 | printf ("Documents : %10lu\n", cth.num_of_docs);
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263 | printf ("Words in collection [dict] : %10lu\n", cth.num_of_words);
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264 | printf ("Longest doc in collection [dict] : %10lu characters\n",
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265 | cth.length_of_longest_doc);
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266 | printf ("Maximum ratio : %10.2f\n", cth.ratio);
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267 | }
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268 |
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269 | if (have_cdh)
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270 | {
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271 | printf ("Words in dict : %10lu\n", cdh.num_words[1]);
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272 | printf ("Non-words in dict : %10lu\n", cdh.num_words[0]);
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273 | printf ("Total chars of distinct words : %10lu\n", cdh.num_word_chars[1]);
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274 | printf ("Total chars of distinct non-words : %10lu\n", cdh.num_word_chars[0]);
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275 | }
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276 |
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277 | }
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278 |
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279 |
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280 |
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281 |
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282 |
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283 |
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284 |
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285 |
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286 | void
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287 | ProcessStem (char *name)
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288 | {
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289 | FILE *f;
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290 | struct invf_dict_header idh;
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291 |
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292 | if (!(f = open_file (name, INVF_DICT_SUFFIX, "rb",
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293 | MAGIC_STEM_BUILD, MG_MESSAGE))) /* [RPAP - Feb 97: WIN32 Port] */
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294 | return;
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295 | fread ((char *) &idh, sizeof (idh), 1, f);
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296 | printf ("Words in collection [stem] : %10ld\n", NTOHUL(idh.num_of_words)); /* [RPAP - Jan 97: Endian Ordering] */
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297 | printf ("Words in stem : %10ld\n", NTOHUL(idh.dict_size)); /* [RPAP - Jan 97: Endian Ordering] */
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298 | printf ("Indexed fragments : %10ld\n", NTOHUL(idh.num_of_docs)); /* [RPAP - Jan 97: Endian Ordering] */
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299 | printf ("Total chars of stem words : %10ld\n", NTOHUL(idh.total_bytes)); /* [RPAP - Jan 97: Endian Ordering] */
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300 | fclose (f);
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301 | }
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302 |
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303 |
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304 |
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305 |
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306 |
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307 | /* [RPAP - Jan 97: Stem Index Change] */
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308 | long
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309 | ProcessStemBlk (char *name)
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310 | {
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311 | FILE *f;
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312 | struct stem_dict_header sdh;
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313 |
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314 | if (!(f = open_file (name, INVF_DICT_BLOCKED_SUFFIX, "rb",
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315 | MAGIC_STEM, MG_MESSAGE))) /* [RPAP - Feb 97: WIN32 Port] */
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316 | return 0;
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317 | fread ((char *) &sdh, sizeof (sdh), 1, f);
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318 | fclose (f);
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319 | return NTOHUL(sdh.indexed); /* [RPAP - Jan 97: Endian Ordering] */
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320 | }
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321 |
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322 |
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323 |
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324 |
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325 | int
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326 | process_file (char *name, char *ext, int exact)
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327 | {
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328 | static double scale = 0;
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329 | static char *units;
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330 | struct stat buf;
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331 | if (scale == 0)
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332 | {
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333 | /* So can get output in Mb or Kb, */
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334 | /* will divide by a scale of 1024(Kb) or 1024*1024(Mb) */
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335 | /* Note: if inputbytes==0, then use 1024 as default */
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336 | scale = inputbytes > 10 * 1000 * 1000 ? 1024 * 1024 : 1024;
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337 | units = scale == 1024 ? "Kb" : "Mb";
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338 | }
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339 | if (name)
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340 | {
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341 | char Name[256];
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342 | sprintf (Name, FILE_NAME_FORMAT, get_basepath (), name, ext);
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343 | if (!stat (Name, &buf))
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344 | {
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345 | char fname[256];
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346 | char *nam = strrchr (name, '/');
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347 | nam = nam ? nam + 1 : name;
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348 | sprintf (fname, "%s%s", nam, ext);
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349 |
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350 | if (inputbytes == 0.0)
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351 | {
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352 | if (exact)
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353 | printf ("%s%*s: %10ld bytes %7.3f%%\n", fname,
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354 | 35 - (int) strlen (fname), "",
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355 | buf.st_size,
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356 | 100.0 * buf.st_size / inputbytes);
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357 | else
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358 | printf ("%s%*s: %8.2f %s %7.3f%%\n", fname,
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359 | 35 - (int) strlen (fname), "",
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360 | buf.st_size / scale,
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361 | units,
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362 | 100.0 * buf.st_size / inputbytes);
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363 | }
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364 | else
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365 | {
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366 | if (exact)
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367 | printf ("%s%*s: %10ld bytes\n", fname,
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368 | 35 - (int) strlen (fname), "",
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369 | buf.st_size);
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370 | else
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371 | printf ("%s%*s: %8.2f %s\n", fname,
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372 | 35 - (int) strlen (fname), "",
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373 | buf.st_size / scale,
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374 | units);
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375 | }
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376 | total += buf.st_size;
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377 | return 1;
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378 | }
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379 | else
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380 | return 0;
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381 | }
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382 | else
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383 | {
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384 | if (inputbytes == 0.0)
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385 | {
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386 | if (exact)
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387 | printf ("%-34s : %10" ULL_FS " bytes %7.3f%%\n", ext,
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388 | total,
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389 | 100.0 * total / inputbytes);
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390 | else
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391 | printf ("%-34s : %8.2f %s %7.3f%%\n", ext,
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392 | total / scale, units,
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393 | 100.0 * total / inputbytes);
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394 | }
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395 | else
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396 | {
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397 | if (exact)
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398 | printf ("%-34s : %10" ULL_FS " bytes\n", ext, total);
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399 | else
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400 | printf ("%-34s : %8.2f %s\n", ext,
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401 | total / scale, units);
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402 | }
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403 | }
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404 | return 1;
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405 |
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406 | }
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