1 | ###############################################################################
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2 | #
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3 | # dbutil.pm -- functions to handle using dbdrivers
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4 | #
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5 | # Copyright (c) 2015 New Zealand Digital Library Project
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6 | #
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7 | # A component of the Greenstone digital library software from the New Zealand
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8 | # Digital Library Project at the 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 it under
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11 | # the terms of the GNU General Public License as published by the Free Software
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12 | # Foundation; either version 2 of the License, or (at your option) any later
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13 | # version.
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14 | #
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15 | # This program is distributed in the hope that it will be useful, but WITHOUT
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16 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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17 | # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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18 | # details.
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19 | #
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20 | # You should have received a copy of the GNU General Public License along with
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21 | # this program; if not, write to the Free Software Foundation, Inc., 675 Mass
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22 | # 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 | package dbutil;
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27 |
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28 | # Pragma
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29 | use strict;
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30 |
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31 | # DEBUGGING: You can enable a DBDriver one at a time to ensure they don't have
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32 | # compilation errors.
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33 | BEGIN
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34 | {
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35 | if (!defined $ENV{'GSDLHOME'} || !defined $ENV{'GSDLOS'}) {
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36 | die("Error! Environment not prepared. Have you sourced setup.bash?\n");
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37 | }
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38 | # Are we running standalone? In which case the INC won't be correct
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39 | # - derp. Linux only sorry
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40 | if ($^O !~ /cygwin|MSWin32/) {
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41 | my $perllib_path = $ENV{'GSDLHOME'} . '/perllib';
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42 | my $all_inc = join(':', @INC);
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43 | if ($all_inc !~ /$perllib_path/) {
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44 | unshift(@INC, $perllib_path);
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45 | unshift(@INC, $ENV{'GSDLHOME'} . '/ext/parallel-building/perllib');
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46 | unshift(@INC, $ENV{'GSDLHOME'} . '/ext/tdb/perllib');
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47 | }
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48 | }
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49 | ## You can uncomment and name a Driver here to test it compiles
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50 | #require DBDrivers::TDBCLUSTER;
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51 | #my $driver = DBDrivers::TDBCLUSTER->new(1);
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52 | }
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53 |
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54 | # Libraries
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55 | use Devel::Peek;
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56 | use Time::HiRes qw ( gettimeofday tv_interval );
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57 | use FileUtils;
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58 | use gsprintf 'gsprintf';
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59 | use util;
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60 |
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61 | # Modulino pattern
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62 | __PACKAGE__->main unless caller;
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63 |
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64 | ###############################################################################
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65 | ## Private
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66 | ###############################################################################
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67 |
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68 | ## Display debug messages?
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69 | my $debug = 0; # Set to 1 to display
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70 |
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71 | ## Keep track of the driver objects we have initialised
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72 | my $dbdriver_pool = {};
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73 |
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74 | # Testing globals
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75 | my $test_count = 0;
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76 | my $pass_count = 0;
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77 | my $skip_count = 0;
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78 |
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79 |
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80 | ## @function _addPathsToINC(void) => void
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81 | #
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82 | # A hopefully unused function to ensure the INC path contains all the available
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83 | # perllib directories (from main, collection, and extensions)
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84 | #
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85 | sub _addPathsToINC
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86 | {
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87 | &_debugPrint('_addPathsToINC() => ', 0);
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88 | my @possible_paths;
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89 | #... the main perllib directory...
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90 | push(@possible_paths, &FileUtils::filenameConcatenate());
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91 | #... a collection specific perllib directory...
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92 | if (defined $ENV{'GSDLCOLLECTDIR'} && $ENV{'GSDLCOLLECTION'}) {
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93 | push(@possible_paths, &FileUtils::filenameConcatenate($ENV{'GSDLCOLLECTDIR'}, 'collect', $ENV{'GSDLCOLLECTION'}, 'perllib'));
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94 | }
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95 | #... any registered extension may also have a perllib!
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96 | if (defined $ENV{'GSDLEXTS'} && defined $ENV{'GSDLHOME'}) {
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97 | foreach my $gs2_extension (split(/:/, $ENV{'GSDLEXTS'})) {
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98 | push(@possible_paths, &FileUtils::filenameConcatenate($ENV{'GSDLHOME'}, 'ext', $gs2_extension, 'perllib'));
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99 | }
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100 | }
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101 | if (defined $ENV{'GSDL3EXTS'} && defined $ENV{'GSDL3SRCHOME'}) {
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102 | foreach my $gs3_extension (split(/:/, $ENV{'GSDL3EXTS'})) {
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103 | push(@possible_paths, &FileUtils::filenameConcatenate($ENV{'GSDL3SRCHOME'}, 'ext', $gs3_extension, 'perllib'));
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104 | }
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105 | }
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106 | my $path_counter = 0;
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107 | foreach my $possible_path (@possible_paths) {
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108 | # we only try adding paths that actually exist
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109 | if (-d $possible_path) {
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110 | my $did_add_path = &util::augmentINC($possible_path);
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111 | if ($did_add_path) {
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112 | $path_counter++;
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113 | }
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114 | }
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115 | }
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116 | &_debugPrint('Added ' . $path_counter . ' paths');
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117 | }
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118 | ## _addPathsToINC(void) => void #
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119 |
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120 |
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121 | ## @function _debugPrint(string, boolean)
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122 | #
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123 | sub _debugPrint
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124 | {
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125 | my ($message, $newline) = @_;
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126 | if ($debug) {
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127 | if (!defined($newline)) {
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128 | $newline = 1;
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129 | }
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130 | print STDERR '[DEBUG] dbutil::' . $message;
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131 | if ($newline) {
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132 | print STDERR "\n";
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133 | }
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134 | }
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135 | }
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136 | ## _debugPrint(string, boolean) => void ##
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137 |
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138 |
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139 | ## @function _isDriverLoaded(string) => boolean
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140 | #
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141 | sub _isDriverLoaded
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142 | {
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143 | my ($dbdriver_name) = @_;
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144 | (my $dbdriver_file = $dbdriver_name) =~ s/::/\//g;
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145 | $dbdriver_file .= '.pm';
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146 | my $result = defined($INC{$dbdriver_file});
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147 | &_debugPrint('_isDriverLoaded("' . $dbdriver_name . '") => ' . $result);
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148 | return $result;
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149 | }
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150 | ## _isDriverLoaded(string) => boolean ##
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151 |
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152 | ## @function _loadDBDriver(string, string)
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153 | #
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154 | sub _loadDBDriver
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155 | {
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156 | my ($dbdriver_name, $db_filepath) = @_;
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157 | my $dbdriver;
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158 | # I've decided (arbitrarily) to use uppercase for driver names since they
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159 | # are mostly acronyms
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160 | $dbdriver_name = uc($dbdriver_name);
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161 | # Ensure the driver has the correct package prefix
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162 | if ($dbdriver_name !~ /^DBDrivers/) {
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163 | $dbdriver_name = 'DBDrivers::' . $dbdriver_name;
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164 | }
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165 | # We only need to create each driver once
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166 | if (defined($dbdriver_pool->{$dbdriver_name})) {
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167 | $dbdriver = $dbdriver_pool->{$dbdriver_name};
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168 | }
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169 | else {
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170 | &_debugPrint('_loadDBDriver() => ' . $dbdriver_name);
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171 | # Assuming the INC is correctly setup, then this should work nicely
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172 | # - make sure we have required this dbdriver package
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173 | eval "require $dbdriver_name";
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174 | if (&_isDriverLoaded($dbdriver_name)) {
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175 | $dbdriver_name->import();
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176 | }
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177 | # What should we do about drivers that aren't there?
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178 | else {
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179 | print STDERR "Error! Failed to load: " . $dbdriver_name . "\n";
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180 | }
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181 | # Then initialise and return a new one
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182 | $dbdriver = $dbdriver_name->new($debug);
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183 | # Store it for later use
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184 | $dbdriver_pool->{$dbdriver_name} = $dbdriver;
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185 | }
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186 | return $dbdriver;
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187 | }
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188 | ## _loadDBDriver(string, string) => BaseDBDriver ##
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189 |
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190 |
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191 | ## @function _printTest(string, integer) => void
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192 | #
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193 | sub _printTest
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194 | {
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195 | my $title = shift(@_);
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196 | my $result = shift(@_);
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197 | $test_count++;
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198 | print " - Test: " . $title . "... ";
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199 | if ($result) {
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200 | print "Passed\n";
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201 | $pass_count++;
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202 | }
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203 | else {
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204 | print "Failed\n";
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205 | }
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206 | }
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207 | ## _printTest(string, integer) => void ##
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208 |
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209 |
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210 | sub _compareHash
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211 | {
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212 | my $hash1 = shift(@_);
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213 | my $hash2 = shift(@_);
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214 | my $str1 = &_hash2str($hash1);
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215 | my $str2 = &_hash2str($hash2);
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216 | return ($str1 eq $str2);
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217 | }
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218 |
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219 | sub _hash2str
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220 | {
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221 | my $hash = shift(@_);
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222 | my $str = '';
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223 | foreach my $key (sort keys %{$hash}) {
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224 | $str .= '{' . $key . '=>{{' . join('},{', @{$hash->{$key}}) . '}}}';
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225 | }
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226 | return $str;
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227 | }
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228 |
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229 |
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230 | ###############################################################################
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231 | ## Public
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232 | ###############################################################################
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233 |
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234 |
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235 | ## @function main(void) => void
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236 | #
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237 | sub main
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238 | {
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239 | my $t0 = [gettimeofday()];
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240 | my $data1 = {'doh' => ['a deer, a female deer'],
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241 | 'ray' => ['a drop of golden sun'],
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242 | 'me' => ['a name I call myself'],
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243 | 'far' => ['a long, long way to run']};
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244 | my $data2 = {'sew' => ['a needle pulling thread'],
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245 | 'lah' => ['a note to follow doh'],
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246 | 'tea' => ['a drink with jam and bread'],
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247 | 'doh' => ['which brings us back to']};
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248 | $test_count = 0;
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249 | $pass_count = 0;
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250 | $skip_count = 0;
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251 | print "===== DBUtils Testing Suite =====\n";
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252 | print "For each driver specified, run a battery of tests\n";
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253 | my @drivers;
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254 | foreach my $arg (@ARGV) {
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255 | if ($arg =~ /^-+([a-z]+)(=.+)?$/) {
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256 | my $arg_name = $1;
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257 | my $arg_value = $2;
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258 | if ($arg_name eq 'debug') {
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259 | $debug = 1;
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260 | }
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261 | }
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262 | else {
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263 | push(@drivers, $arg);
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264 | }
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265 | }
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266 | if (scalar(@drivers)) {
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267 | # Ensure the Perl can load the drivers from all the typical places
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268 | &_addPathsToINC();
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269 | foreach my $driver_name (@drivers) {
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270 | my $t1 = [gettimeofday()];
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271 | print "=== Testing: " . $driver_name . " ===\n";
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272 | my $driver = _loadDBDriver($driver_name);
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273 | my $db_path = $driver->get_infodb_file_path('test-doc','/tmp/');
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274 | print " - Path: " . $db_path . "\n";
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275 | # 1. Open handle
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276 | my $db_handle = $driver->open_infodb_write_handle($db_path);
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277 | &_printTest('opening handle', (defined $db_handle));
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278 | # 2a. Write entry
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279 | $driver->write_infodb_entry($db_handle, 'Alpha', $data1);
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280 | &_printTest('writing entry', 1);
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281 | # 2b. Write raw entry
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282 | my $raw_data = $driver->convert_infodb_hash_to_string($data1);
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283 | $driver->write_infodb_rawentry($db_handle, 'Beta', $raw_data);
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284 | &_printTest('writing raw entry', 1);
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285 | # 3. Close handle
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286 | $driver->close_infodb_write_handle($db_handle);
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287 | if ($driver->supportsPersistentConnection()) {
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288 | $test_count += 1;
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289 | $skip_count += 1;
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290 | print " - Skipping test as persistent drivers delay 'close'.\n";
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291 | }
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292 | else {
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293 | &_printTest('closing handle', (tell($db_handle) < 1));
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294 | }
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295 | if (!$driver->writeOnly()) {
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296 | # 4a. Read entry
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297 | my $data3 = $driver->read_infodb_entry($db_path, 'Alpha');
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298 | &_printTest('read entry', &_compareHash($data1, $data3));
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299 | # 4b. Read raw entry
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300 | my $raw_data4 = $driver->read_infodb_rawentry($db_path, 'Beta');
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301 | my $data4 = $driver->convert_infodb_string_to_hash($raw_data4);
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302 | &_printTest('read raw entry', &_compareHash($data1, $data4));
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303 | # 5. Read keys
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304 | my $keys1 = {};
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305 | $driver->read_infodb_keys($db_path, $keys1);
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306 | &_printTest('read keys', (defined $keys1->{'Alpha'} && defined $keys1->{'Beta'}));
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307 | # 6. Set entry
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308 | if ($driver->supportsSet()) {
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309 | my $status = $driver->set_infodb_entry($db_path, 'Alpha', $data2);
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310 | &_printTest('set entry (1)', ($status >= 0));
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311 | my $data5 = $driver->read_infodb_entry($db_path, 'Alpha');
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312 | &_printTest('set entry (2)', &_compareHash($data2, $data5));
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313 | }
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314 | else {
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315 | $test_count += 2;
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316 | $skip_count += 2;
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317 | print " - Skipping 2 tests as 'set' is not supported by this driver.\n";
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318 | }
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319 | # 7. Delete entry
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320 | my $db_handle2 = $driver->open_infodb_write_handle($db_path, 'append');
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321 | $driver->delete_infodb_entry($db_handle2, 'Alpha');
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322 | $driver->close_infodb_write_handle($db_handle2);
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323 | my $keys2 = {};
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324 | $driver->read_infodb_keys($db_path, $keys2);
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325 | &_printTest('delete entry', ((!defined $keys2->{'Alpha'}) && (defined $keys2->{'Beta'})));
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326 | }
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327 | else
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328 | {
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329 | $test_count += 6;
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330 | $skip_count += 6;
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331 | print " - Skipping 6 tests as driver is write-only.\n";
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332 | }
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333 | # 8. Remove test db
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334 | unlink($db_path);
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335 | my $t2 = [gettimeofday()];
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336 | my $elapsed1 = tv_interval($t1, $t2);
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337 | print " - Testing took " . $elapsed1 . " seconds\n";
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338 | }
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339 | print "===== Results =====\n";
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340 | print "Drivers Tested: " . scalar(@drivers) . "\n";
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341 | print "Tests Run: " . $test_count . "\n";
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342 | print "Tests Passed: " . $pass_count . "\n";
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343 | print "Tests Failed: " . ($test_count - $pass_count - $skip_count) . "\n";
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344 | print "Tests Skipped: " . $skip_count . "\n";
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345 | }
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346 | else
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347 | {
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348 | print "Warning! No drivers specified - expected as arguments to call\n";
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349 | }
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350 | my $t3 = [gettimeofday()];
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351 | my $elapsed2 = tv_interval($t0, $t3);
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352 | print "===== Complete in " . $elapsed2 . " seconds =====\n";
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353 | print "\n";
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354 | exit(0);
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355 | }
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356 | ## main(void) => void
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357 |
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358 |
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359 | ## @function close_infodb_write_handle(string, *) => void
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360 | #
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361 | sub close_infodb_write_handle
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362 | {
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363 | my $infodb_type = shift(@_);
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364 | my $driver = _loadDBDriver($infodb_type);
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365 | $driver->close_infodb_write_handle(@_);
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366 | }
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367 | ## close_infodb_write_handle(string, *) => void ##
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368 |
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369 |
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370 | ## @function delete_infodb_entry(string, *) => void
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371 | #
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372 | sub delete_infodb_entry
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373 | {
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374 | my $infodb_type = shift(@_);
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375 | my $driver = _loadDBDriver($infodb_type);
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376 | $driver->delete_infodb_entry(@_);
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377 | }
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378 | ## delete_infodb_entry(string, *) => void ##
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379 |
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380 |
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381 | ## @function mergeDatabases(string, *) => integer
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382 | #
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383 | sub mergeDatabases
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384 | {
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385 | my $infodb_type = shift(@_);
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386 | my $driver = _loadDBDriver($infodb_type);
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387 | my $status = $driver->mergeDatabases(@_);
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388 | return $status;
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389 | }
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390 | ## mergeDatabases(string, *) => integer ##
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391 |
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392 |
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393 | ## @function get_default_infodb_type(void) => string
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394 | #
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395 | sub get_default_infodb_type
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396 | {
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397 | # The default is GDBM so everything works the same for existing collections
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398 | # To use something else, specify the "infodbtype" in the collection's collect.cfg file
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399 | return 'gdbm';
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400 | }
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401 | ## get_default_infodb_type(void) => string ##
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402 |
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403 |
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404 | ## @function get_infodb_file_path(string, *) => string
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405 | #
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406 | sub get_infodb_file_path
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407 | {
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408 | my $infodb_type = shift(@_);
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409 | my $driver = _loadDBDriver($infodb_type);
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410 | my $infodb_file_path = $driver->get_infodb_file_path(@_);
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411 | return $infodb_file_path;
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412 | }
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413 | ## get_infodb_file_path(string, *) => string ##
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414 |
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415 |
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416 | ## @function convert_infodb_string_to_hash(string,hashmap) => string
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417 | #
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418 | sub convert_infodb_string_to_hash
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419 | {
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420 | my $infodb_type = shift(@_);
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421 | my $driver = _loadDBDriver($infodb_type);
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422 | my $infodb_handle = $driver->convert_infodb_string_to_hash(@_);
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423 | return $infodb_handle;
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424 | }
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425 | ## open_infodb_write_handle(string,hashmap) => string ##
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426 |
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427 |
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428 | ## @function open_infodb_write_handle(string, *) => filehandle
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429 | #
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430 | sub open_infodb_write_handle
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431 | {
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432 | my $infodb_type = shift(@_);
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433 | my $driver = _loadDBDriver($infodb_type);
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434 | my $infodb_handle = $driver->open_infodb_write_handle(@_);
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435 | return $infodb_handle;
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436 | }
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437 | ## open_infodb_write_handle(string, *) => filehandle ##
|
---|
438 |
|
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439 |
|
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440 | ## @function read_infodb_file(string, *) => void
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441 | #
|
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442 | sub read_infodb_file
|
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443 | {
|
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444 | my $infodb_type = shift(@_);
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445 | my $driver = _loadDBDriver($infodb_type);
|
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446 | $driver->read_infodb_file(@_);
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447 | }
|
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448 | ## read_infodb_file(string, *) => void ##
|
---|
449 |
|
---|
450 |
|
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451 | ## @function read_infodb_keys(string, *) => void
|
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452 | #
|
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453 | sub read_infodb_keys
|
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454 | {
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455 | my $infodb_type = shift(@_);
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456 | my $driver = _loadDBDriver($infodb_type);
|
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457 | $driver->read_infodb_keys(@_);
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458 | }
|
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459 | ## read_infodb_keys(string, *) => void ##
|
---|
460 |
|
---|
461 |
|
---|
462 | ## @function read_infodb_entry(string, *) => hashmap
|
---|
463 | #
|
---|
464 | sub read_infodb_entry
|
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465 | {
|
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466 | my $infodb_type = shift(@_);
|
---|
467 | my $driver = _loadDBDriver($infodb_type);
|
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468 | my $infodb_entry = $driver->read_infodb_entry(@_);
|
---|
469 | return $infodb_entry;
|
---|
470 | }
|
---|
471 | ## read_infodb_entry(string, *) => hashmap ##
|
---|
472 |
|
---|
473 |
|
---|
474 | ## @function read_infodb_rawentry(string, *) => string
|
---|
475 | #
|
---|
476 | sub read_infodb_rawentry
|
---|
477 | {
|
---|
478 | my $infodb_type = shift(@_);
|
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479 | my $driver = _loadDBDriver($infodb_type);
|
---|
480 | my $raw_infodb_entry = $driver->read_infodb_rawentry(@_);
|
---|
481 | return $raw_infodb_entry;
|
---|
482 | }
|
---|
483 | ## read_infodb_rawentry(string, *) => string ##
|
---|
484 |
|
---|
485 |
|
---|
486 | ## @function set_infodb_entry(string, *) => integer
|
---|
487 | #
|
---|
488 | sub set_infodb_entry
|
---|
489 | {
|
---|
490 | my $infodb_type = shift(@_);
|
---|
491 | my $driver = _loadDBDriver($infodb_type);
|
---|
492 | my $status = $driver->set_infodb_entry(@_);
|
---|
493 | return $status;
|
---|
494 | }
|
---|
495 | ## set_infodb_entry(string, *) => integer ##
|
---|
496 |
|
---|
497 |
|
---|
498 | ## @function supportDatestamp(string) => boolean
|
---|
499 | #
|
---|
500 | sub supportsDatestamp
|
---|
501 | {
|
---|
502 | my $infodb_type = shift(@_);
|
---|
503 | my $driver = _loadDBDriver($infodb_type);
|
---|
504 | my $supports_datestamp = $driver->supportsDatestamp();
|
---|
505 | return $supports_datestamp;
|
---|
506 | }
|
---|
507 | ## supportsDatestamp(string) => boolean ##
|
---|
508 |
|
---|
509 |
|
---|
510 | ## @function supportMerge(string) => boolean
|
---|
511 | #
|
---|
512 | sub supportsMerge
|
---|
513 | {
|
---|
514 | my $infodb_type = shift(@_);
|
---|
515 | my $driver = _loadDBDriver($infodb_type);
|
---|
516 | my $supports_merge = $driver->supportsMerge();
|
---|
517 | return $supports_merge;
|
---|
518 | }
|
---|
519 | ## supportsMerge(string) => boolean ##
|
---|
520 |
|
---|
521 |
|
---|
522 | ## @function supportRSS(string) => boolean
|
---|
523 | #
|
---|
524 | sub supportsRSS
|
---|
525 | {
|
---|
526 | my $infodb_type = shift(@_);
|
---|
527 | my $driver = _loadDBDriver($infodb_type);
|
---|
528 | my $supports_rss = $driver->supportsRSS();
|
---|
529 | return $supports_rss;
|
---|
530 | }
|
---|
531 | ## supportsRSS(string) => boolean ##
|
---|
532 |
|
---|
533 |
|
---|
534 | ## @function supportsConcurrentReadAndWrite(string) => boolean
|
---|
535 | #
|
---|
536 | sub supportsConcurrentReadAndWrite
|
---|
537 | {
|
---|
538 | my $infodb_type = shift(@_);
|
---|
539 | my $driver = _loadDBDriver($infodb_type);
|
---|
540 | return $driver->supportsConcurrentReadAndWrite();
|
---|
541 | }
|
---|
542 | ## supportsConcurrentReadAndWrite(string) => boolean ##
|
---|
543 |
|
---|
544 |
|
---|
545 | ## @function write_infodb_entry(string, *) => void
|
---|
546 | #
|
---|
547 | sub write_infodb_entry
|
---|
548 | {
|
---|
549 | my $infodb_type = shift(@_);
|
---|
550 | my $driver = _loadDBDriver($infodb_type);
|
---|
551 | $driver->write_infodb_entry(@_);
|
---|
552 | }
|
---|
553 | ## write_infodb_entry(string, *) => void ##
|
---|
554 |
|
---|
555 |
|
---|
556 | ## @function write_infodb_rawentry(string, *) => void
|
---|
557 | #
|
---|
558 | sub write_infodb_rawentry
|
---|
559 | {
|
---|
560 | my $infodb_type = shift(@_);
|
---|
561 | my $driver = _loadDBDriver($infodb_type);
|
---|
562 | $driver->write_infodb_rawentry(@_);
|
---|
563 | }
|
---|
564 | ## write_infodb_rawentry(string, *) => void ##
|
---|
565 |
|
---|
566 | 1;
|
---|