1 | ###########################################################################
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2 | #
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3 | # MetadataPass.pm -- class to enhance plugins with generic metadata capabilities
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4 | # A component of the Greenstone digital library software
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5 | # from the New Zealand Digital Library Project at the
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6 | # University of Waikato, New Zealand.
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7 | #
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8 | # Copyright (C) 1999 New Zealand Digital Library Project
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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 | package MetadataPass;
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27 |
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28 | use strict;
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29 | no strict 'refs'; # allow filehandles to be variables and viceversa
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30 |
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31 | use PrintInfo; # uses PrintInfo, but is not inherited
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32 |
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33 |
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34 | my $options = { 'name' => "MetadataPass",
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35 | 'desc' => "{MetadataPass.desc}",
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36 | 'abstract' => "yes",
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37 | 'inherits' => "no" };
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38 |
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39 |
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40 | sub new {
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41 | my $class = shift (@_);
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42 | my $plugin_name = shift (@_);
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43 |
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44 | my $self = {};
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45 | $self->{'plugin_type'} = "MetadataPass";
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46 |
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47 | $self->{'option_list'} = [ $options ];
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48 |
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49 | return bless $self, $class;
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50 | }
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51 |
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52 | sub init {
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53 | }
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54 |
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55 | sub print_xml_usage
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56 | {
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57 | PrintInfo::print_xml_usage(@_);
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58 | }
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59 |
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60 | sub print_xml
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61 | {
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62 | PrintInfo::print_xml(@_);
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63 | }
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64 |
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65 | sub set_incremental
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66 | {
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67 | PrintInfo::set_incremental(@_);
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68 | }
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69 |
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70 | sub reset_saved_metadata {
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71 | my $self = shift(@_);
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72 |
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73 | $self->{'saved_metadata'} = {};
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74 | }
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75 |
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76 |
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77 | sub get_saved_metadata {
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78 | my $self = shift(@_);
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79 |
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80 | return $self->{'saved_metadata'};
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81 | }
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82 |
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83 | sub open_prettyprint_metadata_table
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84 | {
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85 | my $self = shift(@_);
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86 |
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87 | my $att = "width=100% cellspacing=2";
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88 | my $style = "style=\'border-bottom: 4px solid #000080\'";
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89 |
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90 | $self->{'ppmd_table'} = "\n<table $att $style>";
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91 | }
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92 |
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93 | sub add_prettyprint_metadata_line
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94 | {
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95 | my $self = shift(@_);
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96 | my ($metaname, $metavalue_utf8) = @_;
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97 |
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98 | $metavalue_utf8 = &util::hyperlink_text($metavalue_utf8);
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99 |
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100 | $self->{'ppmd_table'} .= " <tr bgcolor=#b5d3cd>\n";
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101 | $self->{'ppmd_table'} .= " <td width=30%>\n";
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102 | $self->{'ppmd_table'} .= " $metaname\n";
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103 | $self->{'ppmd_table'} .= " </td>\n";
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104 | $self->{'ppmd_table'} .= " <td>\n";
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105 | $self->{'ppmd_table'} .= " $metavalue_utf8\n";
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106 | $self->{'ppmd_table'} .= " </td>\n";
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107 | $self->{'ppmd_table'} .= " </tr>\n";
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108 |
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109 | }
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110 |
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111 | sub close_prettyprint_metadata_table
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112 | {
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113 | my $self = shift(@_);
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114 | $self->{'ppmd_table'} .= "</table>\n";
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115 |
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116 | $self->set_filere_metadata("prettymd",$self->{'ppmd_table'});
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117 | $self->{'ppmd_table'} = undef;
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118 | }
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119 |
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120 | sub set_filere_metadata
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121 | {
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122 | my $self = shift(@_);
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123 | my ($full_mname,$md_content) = @_;
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124 |
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125 | if (defined $self->{'saved_metadata'}->{$full_mname}) {
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126 | # accumulate - add value to existing value(s)
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127 | if (ref ($self->{'saved_metadata'}->{$full_mname}) eq "ARRAY") {
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128 | push (@{$self->{'saved_metadata'}->{$full_mname}}, $md_content);
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129 | } else {
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130 | $self->{'saved_metadata'}->{$full_mname} =
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131 | [$self->{'saved_metadata'}->{$full_mname}, $md_content];
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132 | }
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133 | } else {
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134 | # accumulate - add value into (currently empty) array
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135 | $self->{'saved_metadata'}->{$full_mname} = [$md_content];
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136 | }
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137 | }
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138 |
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139 |
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140 | sub get_filere_metadata
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141 | {
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142 | my $self = shift(@_);
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143 | my ($full_mname) = @_;
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144 |
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145 | return $self->{'saved_metadata'}->{$full_mname};
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146 | }
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147 |
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148 | sub get_filere_metadata_head
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149 | {
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150 | my $self = shift(@_);
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151 | my ($full_mname) = @_;
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152 |
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153 | return $self->{'saved_metadata'}->{$full_mname}->[0];
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154 | }
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155 |
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156 |
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157 |
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158 | 1;
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