1 | /**********************************************************************
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2 | *
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3 | * collectset.cpp --
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4 | * Copyright (C) 1999 The New Zealand Digital Library Project
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5 | *
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6 | * A component of the Greenstone digital library software
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7 | * from the New Zealand Digital Library Project at the
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8 | * University of Waikato, New Zealand.
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9 | *
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10 | * This program is free software; you can redistribute it and/or modify
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11 | * it under the terms of the GNU General Public License as published by
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12 | * the Free Software Foundation; either version 2 of the License, or
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13 | * (at your option) any later version.
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14 | *
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15 | * This program is distributed in the hope that it will be useful,
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | * GNU General Public License for more details.
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19 | *
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20 | * You should have received a copy of the GNU General Public License
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21 | * along with this program; if not, write to the Free Software
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22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | *
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24 | *********************************************************************/
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25 |
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26 |
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27 | #include "collectset.h"
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28 | #include "collectserver.h"
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29 | #include "colservrconfig.h"
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30 | #include "gsdlsitecfg.h"
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31 | #include "gdbmclass.h"
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32 | #include "gsdltools.h"
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33 | #include "fileutil.h"
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34 | #include "filter.h"
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35 | #include "browsefilter.h"
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36 | #include "sqlbrowsefilter.h"
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37 | #include "queryfilter.h"
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38 | #include "mgqueryfilter.h"
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39 | #include "mgppqueryfilter.h"
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40 | #include "mgsource.h"
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41 | #include "lucenequeryfilter.h"
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42 | #include "lucenesource.h"
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43 |
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44 | #include <assert.h>
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45 |
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46 | #ifdef USE_SQLITE
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47 | #include "sqlitedbclass.h"
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48 | #endif
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49 |
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50 | #ifdef USE_MSSQL
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51 | #include "mssqldbclass.h"
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52 | #endif
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53 |
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54 |
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55 | collectset::collectset (text_t& gsdlhome, text_t& collecthome)
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56 | {
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57 | // gsdlhome and collecthome will be set as a result of calling this function
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58 | // collecthome will default to "<gsdlhome>/collect" if not explicitly
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59 | // specified in config file
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60 |
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61 | text_tarray collections;
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62 |
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63 | mgsearch = NULL;
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64 | mgppsearch = NULL;
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65 | lucenesearch = NULL;
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66 |
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67 | // get gsdlhome (if we fail the error will be picked up later -- in
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68 | // cgiwrapper)
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69 |
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70 | if (site_cfg_read (gsdlhome, collecthome, httpdomain, httpprefix)) {
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71 | if (!gsdlhome.empty() && directory_exists(gsdlhome)) {
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72 | if (read_dir (collecthome, collections)) {
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73 |
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74 | text_tarray::const_iterator thiscol = collections.begin();
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75 | text_tarray::const_iterator endcol = collections.end();
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76 |
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77 | while (thiscol != endcol) {
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78 | // ignore the modelcol
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79 | if (*thiscol == "modelcol") {
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80 | ++thiscol;
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81 | continue;
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82 | }
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83 |
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84 | this->add_collection (*thiscol, gsdlhome, collecthome);
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85 |
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86 | ++thiscol;
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87 | }
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88 |
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89 | this->add_all_collection_groups(gsdlhome, collecthome);
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90 | }
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91 | }
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92 | }
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93 |
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94 | set_gsdl_env_vars(gsdlhome);
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95 | }
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96 |
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97 |
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98 | collectset::collectset (text_t& httpprefix_arg)
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99 | {
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100 | httpprefix = httpprefix_arg;
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101 |
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102 | mgsearch = NULL;
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103 | mgppsearch = NULL;
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104 | lucenesearch = NULL;
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105 |
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106 | }
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107 |
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108 | collectset::collectset ()
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109 | {
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110 | mgsearch = NULL;
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111 | mgppsearch = NULL;
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112 | lucenesearch = NULL;
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113 | }
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114 |
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115 | collectset::~collectset () {
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116 | collectservermapclass::iterator here = cservers.begin();
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117 | collectservermapclass::iterator end = cservers.end();
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118 |
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119 | while (here != end) {
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120 | if ((*here).second.c != NULL) {
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121 | delete (*here).second.c;
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122 | }
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123 | ++here;
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124 | }
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125 | cservers.clear();
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126 | }
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127 |
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128 | bool collectset::init (ostream &logout) {
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129 | collectservermapclass::iterator here = cservers.begin();
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130 | collectservermapclass::iterator end = cservers.end();
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131 |
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132 | while (here != end) {
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133 | assert ((*here).second.c != NULL);
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134 | if ((*here).second.c != NULL) {
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135 | const colservrconf &configinfo = (*here).second.c->get_configinfo ();
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136 |
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137 | // configure this collection server
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138 |
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139 | // note that we read build.cfg before collect.cfg so that the indexmaps
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140 | // are available to decode defaultindex, defaultsubcollection, and
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141 | // defaultlanguage
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142 |
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143 | bool failed_build_cfg = false;
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144 | if (!build_cfg_read (*((*here).second.c), configinfo.gsdlhome,
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145 | configinfo.collecthome, configinfo.collection)) {
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146 | failed_build_cfg = true;
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147 |
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148 | outconvertclass text_t2ascii;
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149 | logout << text_t2ascii
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150 | << "Warning: couldn't read build.cfg file for collection \""
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151 | << configinfo.collection << "\""
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152 | << " gsdlhome=\"" << configinfo.gsdlhome << "\"\n"
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153 | << " collecthome=\"" << configinfo.collecthome << "\"\n";
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154 | }
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155 |
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156 | bool failed_collect_cfg = false;
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157 | if (!collect_cfg_read (*((*here).second.c), configinfo.gsdlhome,
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158 | configinfo.collecthome, configinfo.collection)) {
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159 | failed_collect_cfg = true;
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160 | outconvertclass text_t2ascii;
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161 | logout << text_t2ascii
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162 | << "Warning: couldn't read collect.cfg file for collection \""
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163 | << configinfo.collection << "\""
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164 | << " gsdlhome=\"" << configinfo.gsdlhome << "\"\n"
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165 | << " collecthome=\"" << configinfo.collecthome << "\"\n";
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166 | }
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167 |
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168 |
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169 | bool is_colgroup = (*here).second.c->is_collection_group();
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170 |
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171 | if (failed_collect_cfg) {
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172 | ++here;
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173 | continue;
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174 | }
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175 |
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176 | if (failed_build_cfg && (!is_colgroup)) {
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177 | ++here;
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178 | continue;
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179 | }
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180 | // let a failed build.cfg through if its 'collect.cfg' marks it as 'collectgroup true'
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181 |
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182 | if (!(*here).second.c->init (logout)) return false;
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183 |
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184 | (*here).second.c->configure("httpdomain",httpdomain);
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185 | (*here).second.c->configure("httpprefix",httpprefix);
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186 | }
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187 | ++here;
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188 | }
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189 |
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190 | return true;
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191 | }
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192 |
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193 | collectservermapclass collectset::servers()
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194 | { return cservers;
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195 | }
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196 |
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197 |
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198 | void collectset::add_all_collections(const text_t &gsdlhome,
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199 | const text_t& collecthome)
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200 | {
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201 | text_tarray collections;
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202 |
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203 | if (read_dir(collecthome, collections)) {
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204 |
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205 | text_tarray::const_iterator thiscol = collections.begin();
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206 | text_tarray::const_iterator endcol = collections.end();
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207 |
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208 | while (thiscol != endcol) {
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209 |
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210 | // ignore the modelcol
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211 | if (*thiscol == "modelcol") {
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212 | ++thiscol;
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213 | continue;
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214 | }
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215 |
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216 | // create collection server for this collection
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217 | this->add_collection (*thiscol, gsdlhome, collecthome);
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218 |
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219 | ++thiscol;
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220 | }
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221 |
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222 | this->add_all_collection_groups(gsdlhome,collecthome);
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223 | }
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224 | }
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225 |
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226 | // add_collection sets up the collectionserver and calls
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227 | // add_collectserver
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228 | void collectset::add_collection (const text_t& collection,
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229 | const text_t& gsdlhome,
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230 | const text_t& collecthome)
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231 | {
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232 |
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233 | this->remove_collection(collection);
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234 |
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235 | // read config file to see if built with mg, mgpp, or lucene
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236 | text_t buildtype = "mg"; // mg is default
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237 | text_t infodbtype = "gdbm"; // gdbm is default
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238 |
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239 | text_tarray cfgline;
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240 | text_t key;
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241 |
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242 | text_t build_cfg = filename_cat(collecthome, collection, "index", "build.cfg");
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243 | char *build_cfgc = build_cfg.getcstr();
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244 | ifstream confin(build_cfgc);
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245 |
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246 | if (confin) {
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247 | while (read_cfg_line(confin, cfgline) >= 0) {
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248 | if (cfgline.size() == 2) {
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249 | key = cfgline[0];
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250 | cfgline.erase(cfgline.begin());
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251 | if (key == "buildtype") {
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252 | buildtype = cfgline[0];
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253 | }
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254 | if (key == "infodbtype") {
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255 | infodbtype = cfgline[0];
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256 | }
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257 | }
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258 | }
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259 | confin.close();
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260 | }
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261 | delete []build_cfgc;
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262 |
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263 | collectserver *cserver = new collectserver();
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264 |
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265 | // Create a dbclass of the correct type
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266 | dbclass *db_ptr = NULL;
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267 |
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268 | #ifdef USE_SQLITE
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269 | if (infodbtype == "sqlite")
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270 | {
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271 | sqlitedbclass *sql_db_ptr = new sqlitedbclass();
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272 | db_ptr = sql_db_ptr;
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273 |
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274 | // add a sql browse filter
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275 | sqlbrowsefilterclass *sqlbrowsefilter = new sqlbrowsefilterclass();
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276 | sqlbrowsefilter->set_sql_db_ptr(sql_db_ptr);
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277 | cserver->add_filter (sqlbrowsefilter);
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278 | }
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279 | #endif
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280 |
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281 | #ifdef USE_MSSQL
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282 | if (infodbtype == "mssql")
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283 | {
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284 | mssqldbclass *mssql_db_ptr = new mssqldbclass();
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285 | db_ptr = mssql_db_ptr;
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286 |
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287 | // add a sql browse filter
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288 | sqlbrowsefilterclass *sqlbrowsefilter = new sqlbrowsefilterclass();
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289 | sqlbrowsefilter->set_sql_db_ptr(mssql_db_ptr);
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290 | cserver->add_filter (sqlbrowsefilter);
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291 | }
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292 | #endif
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293 |
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294 | // Use GDBM if the infodb type is empty or not one of the values above
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295 | if (db_ptr == NULL)
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296 | {
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297 | db_ptr = new gdbmclass();
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298 | }
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299 |
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300 | // add a null filter
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301 | filterclass *filter = new filterclass ();
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302 | cserver->add_filter (filter);
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303 |
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304 | // add a browse filter
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305 | browsefilterclass *browsefilter = new browsefilterclass();
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306 | browsefilter->set_db_ptr(db_ptr);
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307 | cserver->add_filter (browsefilter);
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308 |
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309 | if (buildtype == "mg") {
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310 | mgsearch = new mgsearchclass();
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311 |
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312 | // add a query filter
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313 | mgqueryfilterclass *queryfilter = new mgqueryfilterclass();
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314 | queryfilter->set_db_ptr(db_ptr);
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315 | queryfilter->set_textsearchptr (mgsearch);
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316 | cserver->add_filter (queryfilter);
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317 |
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318 | // add a mg source
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319 | mgsourceclass *mgsource = new mgsourceclass ();
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320 | mgsource->set_db_ptr(db_ptr);
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321 | mgsource->set_textsearchptr (mgsearch);
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322 | cserver->add_source (mgsource);
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323 | }
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324 | else if (buildtype == "mgpp") {
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325 | mgppsearch = new mgppsearchclass();
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326 |
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327 | // add a query filter
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328 | mgppqueryfilterclass *queryfilter = new mgppqueryfilterclass();
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329 | queryfilter->set_db_ptr(db_ptr);
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330 | queryfilter->set_textsearchptr (mgppsearch);
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331 | cserver->add_filter (queryfilter);
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332 |
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333 | // add a mg source
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334 | mgsourceclass *mgsource = new mgsourceclass ();
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335 | mgsource->set_db_ptr(db_ptr);
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336 | mgsource->set_textsearchptr (mgppsearch);
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337 | cserver->add_source (mgsource);
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338 | }
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339 | else if (buildtype == "lucene") {
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340 | lucenesearch = new lucenesearchclass();
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341 | lucenesearch->set_gsdlhome(gsdlhome);
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342 |
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343 | // add a query filter
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344 | lucenequeryfilterclass *queryfilter = new lucenequeryfilterclass();
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345 | queryfilter->set_db_ptr(db_ptr);
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346 | queryfilter->set_textsearchptr (lucenesearch);
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347 | cserver->add_filter (queryfilter);
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348 |
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349 | // add a lucene source
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350 | lucenesourceclass *lucenesource = new lucenesourceclass ();
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351 | lucenesource->set_db_ptr(db_ptr);
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352 | lucenesource->set_textsearchptr (lucenesearch);
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353 | cserver->add_source (lucenesource);
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354 | }
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355 |
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356 | // inform collection server and everything it contains about its
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357 | // collection name
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358 | cserver->configure ("collection", collection);
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359 | cserver->configure ("gsdlhome", gsdlhome);
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360 | cserver->configure ("collecthome", collecthome);
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361 | cservers.addcollectserver (cserver);
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362 | }
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363 |
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364 | void collectset::remove_all_collections () {
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365 |
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366 | // first unload any cached mg databases
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367 | if (mgsearch != NULL) {
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368 | mgsearch->unload_database();
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369 | }
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370 |
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371 | // now delete the collection server objects
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372 | collectservermapclass::iterator here = cservers.begin();
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373 | collectservermapclass::iterator end = cservers.end();
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374 |
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375 | while (here != end) {
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376 | if ((*here).second.c != NULL) {
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377 | delete (*here).second.c;
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378 | }
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379 | ++here;
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380 | }
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381 | cservers.clear();
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382 | }
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383 |
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384 | void collectset::add_collection_group(const text_t& collection,
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385 | const text_t& gsdlhome,
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386 | const text_t& collecthome)
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387 | {
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388 | text_tarray group;
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389 |
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390 | text_t collect_group_dir = filename_cat (collecthome, collection);
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391 |
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392 | // need to read collect.cfg for 'collectgroup' as class hasn't been initialised through 'init' yet
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393 | text_t is_collect_group;
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394 | text_tarray cfgline;
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395 | text_t key;
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396 | text_t collect_cfg = filename_cat(collect_group_dir, "etc", "collect.cfg");
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397 | char *collect_cfgc = collect_cfg.getcstr();
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398 | ifstream confin(collect_cfgc);
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399 |
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400 | if (confin) {
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401 | while (read_cfg_line(confin, cfgline) >= 0) {
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402 | if (cfgline.size() == 2) {
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403 | key = cfgline[0];
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404 | cfgline.erase(cfgline.begin());
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405 | if (key == "collectgroup") {
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406 | is_collect_group = cfgline[0];
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407 | break;
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408 | }
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409 | }
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410 | }
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411 | confin.close();
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412 | }
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413 | delete []collect_cfgc;
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414 |
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415 | if (is_collect_group == "true") {
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416 | if (read_dir (collect_group_dir, group)) {
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417 |
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418 | text_tarray::const_iterator thiscol = group.begin();
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419 | text_tarray::const_iterator endcol = group.end();
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420 |
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421 | while (thiscol != endcol) {
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422 | // ignore the etc directory
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423 | if (*thiscol == "etc") {
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424 | ++thiscol;
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425 | continue;
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426 | }
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427 |
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428 | //text_t group_col = filename_cat(collection,*thiscol);
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429 | // later we check for / in the name. When this is used in a path (via fileanme_cat) the / will be converted to \ on windows
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430 | text_t group_col = collection + "/" + *thiscol;
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431 | this->add_collection (group_col, gsdlhome, collecthome);
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432 |
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433 | ++thiscol;
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434 | }
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435 | }
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436 | }
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437 | }
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438 |
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439 | void collectset::add_all_collection_groups (const text_t& gsdlhome,
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440 | const text_t& collecthome)
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441 |
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442 | {
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443 | collectservermapclass::iterator here = cservers.begin();
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444 | collectservermapclass::iterator end = cservers.end();
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445 |
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446 | while (here != end) {
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447 | text_t collection = (*here).second.c->get_collection_name();
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448 | this->add_collection_group(collection,gsdlhome,collecthome);
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449 |
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450 | ++here;
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451 | }
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452 | }
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453 |
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454 |
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455 | // remove_collection deletes the collection server of collection.
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456 | // This only needs to be called if a collectionserver is to be
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457 | // removed while the library is running. The destructor function
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458 | // cleans up all collectservers when the program exits.
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459 | void collectset::remove_collection (const text_t &collection) {
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460 |
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461 | // do nothing if no collection server exists for this collection
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462 | if (cservers.getcollectserver(collection) == NULL) return;
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463 |
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464 | // first unload any cached mg databases - we may need to do something
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465 | // similar to this for mgpp and lucene too
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466 | if (mgsearch != NULL) {
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467 | mgsearch->unload_database();
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468 | }
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469 |
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470 | // now delete the collection server object
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471 | collectservermapclass::iterator here = cservers.begin();
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472 | collectservermapclass::iterator end = cservers.end();
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473 |
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474 | while (here != end) {
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475 | if ((*here).second.c != NULL && (*here).first == collection) {
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---|
476 | delete (*here).second.c;
|
---|
477 | cservers.erase (here);
|
---|
478 | return;
|
---|
479 | }
|
---|
480 | ++here;
|
---|
481 | }
|
---|
482 | }
|
---|
483 |
|
---|
484 |
|
---|
485 | // remove_collection deletes the collection server of collection.
|
---|
486 | // This only needs to be called if a collectionserver is to be
|
---|
487 | // removed while the library is running. The destructor function
|
---|
488 | // cleans up all collectservers when the program exits.
|
---|
489 | void collectset::remove_collection (const text_t &collection, ostream &logout) {
|
---|
490 |
|
---|
491 | remove_collection(collection);
|
---|
492 |
|
---|
493 | outconvertclass text_t2ascii;
|
---|
494 | logout << text_t2ascii << "collectset::remove_collection: failed to remove collectserver for "
|
---|
495 | << collection << "\n";
|
---|
496 | }
|
---|
497 |
|
---|
498 | void collectset::configure(const text_t &key, const text_tarray &cfgline)
|
---|
499 | {
|
---|
500 | if ((key == "collection") || (key == "collectdir")) return;
|
---|
501 |
|
---|
502 | collectservermapclass::iterator here = cservers.begin();
|
---|
503 | collectservermapclass::iterator end = cservers.end();
|
---|
504 |
|
---|
505 | while (here != end) {
|
---|
506 | assert ((*here).second.c != NULL);
|
---|
507 | if ((*here).second.c != NULL) {
|
---|
508 | if (key == "collectinfo") {
|
---|
509 | if ((*here).first == cfgline[0]) {
|
---|
510 | if (cfgline.size()==3) {
|
---|
511 | (*here).second.c->configure ("gsdlhome", cfgline[1]);
|
---|
512 | (*here).second.c->configure ("gdbmhome", cfgline[2]);
|
---|
513 | }
|
---|
514 | else {
|
---|
515 | (*here).second.c->configure ("gsdlhome", cfgline[1]);
|
---|
516 | (*here).second.c->configure ("collecthome", cfgline[2]);
|
---|
517 | (*here).second.c->configure ("gdbmhome", cfgline[3]);
|
---|
518 | }
|
---|
519 | }
|
---|
520 | } else {
|
---|
521 | (*here).second.c->configure (key, cfgline);
|
---|
522 | }
|
---|
523 | }
|
---|
524 |
|
---|
525 | ++here;
|
---|
526 | }
|
---|
527 | }
|
---|
528 |
|
---|
529 | void collectset::getCollectionList (text_tarray &collist)
|
---|
530 | {
|
---|
531 | collist.erase(collist.begin(),collist.end());
|
---|
532 |
|
---|
533 | collectservermapclass::iterator here = cservers.begin();
|
---|
534 | collectservermapclass::iterator end = cservers.end();
|
---|
535 | while (here != end) {
|
---|
536 | assert ((*here).second.c != NULL);
|
---|
537 | if ((*here).second.c != NULL) {
|
---|
538 | collist.push_back ((*here).second.c->get_collection_name());
|
---|
539 | }
|
---|
540 | ++here;
|
---|
541 | }
|
---|
542 | }
|
---|
543 |
|
---|