[26436] | 1 | #!/usr/bin/perl -w
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| 2 |
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| 3 | use strict;
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| 4 | no strict 'refs'; # allow filehandles to be variables and viceversa
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| 5 |
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| 6 | use warnings;
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| 7 |
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| 8 | use Encode;
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| 9 | use JSON;
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| 10 |
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| 11 | # use LWP;
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| 12 |
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| 13 | use OAuth::Lite::Consumer;
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| 14 | use OAuth::Lite::AuthMethod;
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| 15 |
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| 16 | use URI::Escape;
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| 17 |
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| 18 | sub _data_api
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| 19 | {
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| 20 | my ($mode,$htid,$opt_seq,$opt_params) = @_;
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| 21 |
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| 22 | my $access_key = '7e6ee38bae';
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| 23 | my $secret_key = 'e0429c0394385486249b4a230702';
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| 24 |
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| 25 | my $request_url = "http://babel.hathitrust.org/cgi/htd/$mode/$htid";
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| 26 |
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| 27 | $request_url .= "/$opt_seq" if (defined $opt_seq);
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| 28 |
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| 29 | my $consumer = OAuth::Lite::Consumer->new( 'consumer_key' => $access_key,
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| 30 | 'consumer_secret' => $secret_key,
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| 31 | 'auth_method' => OAuth::Lite::AuthMethod::URL_QUERY );
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| 32 |
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| 33 | my $response = $consumer->request( 'method' => 'GET',
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| 34 | 'url' => $request_url,
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| 35 | 'params' => $opt_params );
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| 36 |
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| 37 | if (!$response->is_success()) {
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| 38 | print STDERR "**** Failed to retrieval any content from URL:\n";
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| 39 | print STDERR " ", $consumer->oauth_request->uri, "\n";
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| 40 | print "------\n";
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| 41 | print STDERR "**** Status: ", $response->status_line, "\n";
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| 42 | print "------\n";
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[26442] | 43 | my $text_only_content = $response->content();
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| 44 | $text_only_content =~ s/<[^>]*>//g;
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| 45 | $text_only_content =~ s/^\s*$//mg;
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| 46 |
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| 47 | print STDERR "**** Content: $text_only_content\n";
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[26436] | 48 | print "------\n";
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| 49 |
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| 50 | $response = undef;
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| 51 | }
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| 52 |
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| 53 | return $response;
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| 54 | }
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| 55 |
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| 56 |
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| 57 | sub pageimage_data_api
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| 58 | {
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| 59 | my ($htid,$seq_num,$ofilename) = @_;
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| 60 |
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| 61 | if (!-f $ofilename) {
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| 62 | print STDERR "Downloading PageImage $htid/$seq_num\n";
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| 63 |
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[26442] | 64 | my $retryCount = 0;
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| 65 | PageImageRetry:
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[26436] | 66 | my $response = _data_api("pageimage",$htid, $seq_num );
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[26442] | 67 | if (defined $response) {
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| 68 | $retryCount = 0; # reset it
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| 69 | my $content = $response->content();
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[26436] | 70 |
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[26442] | 71 | if (open(IMGOUT,">$ofilename")) {
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| 72 | binmode(IMGOUT);
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| 73 | print IMGOUT $content;
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| 74 | close(IMGOUT);
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| 75 | }
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| 76 | else {
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| 77 | print STDERR "Error: Failed to open $ofilename for binary output\n";
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| 78 | print STDERR " $!\n";
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| 79 | }
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[26436] | 80 | }
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| 81 | else {
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[26442] | 82 | $retryCount++;
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| 83 | print STDERR "Failed to download PageImage\n";
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| 84 |
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| 85 | if ($retryCount<2) {
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| 86 | print STDERR "Sleeping to 60 seconds\n";
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| 87 | sleep(60);
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| 88 | print STDERR "Retry attempt $retryCount\n";
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| 89 | goto PageImageRetry;
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| 90 | }
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| 91 | else {
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| 92 | print STDERR "Maximum number of attempts reached. Stopping.\n";
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| 93 | exit -1;
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| 94 | }
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| 95 | }
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| 96 |
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[26436] | 97 | }
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| 98 | else {
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| 99 | print STDERR "Skipping PageImage data API request\n";
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| 100 | print STDERR "=> downloaded file $ofilename already exists\n";
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| 101 | }
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| 102 | }
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| 103 |
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| 104 |
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| 105 |
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| 106 | sub pageocr_data_api
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| 107 | {
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| 108 | my ($htid,$seq_num,$ofilename) = @_;
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| 109 |
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| 110 | my $content = undef;
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| 111 |
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| 112 | if (((defined $ofilename) && (!-f $ofilename))
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| 113 | || (!defined $ofilename)) {
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| 114 | print STDERR "Downloading PageOCR (text) $htid/$seq_num\n";
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[26442] | 115 |
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| 116 | my $retryCount = 0;
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| 117 | PageOcrRetry:
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| 118 |
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| 119 | my $response = _data_api("pageocr",$htid, $seq_num );
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| 120 |
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| 121 | if (defined $response) {
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| 122 | $retryCount = 0; # reset it
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| 123 |
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| 124 | $content = $response->content();
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[26436] | 125 |
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[26442] | 126 | if (open(TXTOUT,">$ofilename")) {
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| 127 | print TXTOUT $content;
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| 128 | close(TXTOUT);
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| 129 | }
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| 130 | else {
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| 131 | print STDERR "Error: Failed to open $ofilename for binary output\n";
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| 132 | print STDERR " $!\n";
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| 133 | }
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[26436] | 134 | }
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| 135 | else {
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[26442] | 136 | $retryCount++;
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| 137 | print STDERR "Failed to download PageOCR\n";
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| 138 |
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| 139 | if ($retryCount<2) {
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| 140 | print STDERR "Sleeping to 60 seconds\n";
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| 141 | sleep(60);
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| 142 | print STDERR "Retry attempt $retryCount\n";
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| 143 | goto PageOcrRetry;
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| 144 | }
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| 145 | else {
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| 146 | print STDERR "Maximum number of attempts reached. Stopping.\n";
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| 147 | exit -1;
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| 148 | }
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| 149 | }
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| 150 |
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[26436] | 151 | }
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| 152 | else {
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| 153 | print STDERR "Skipping PageOCR Data API request\n";
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| 154 | print STDERR "=> Using cached version of file:\n $ofilename\n";
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| 155 |
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| 156 | if (open(JSIN,"<$ofilename")) {
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| 157 | binmode(JSIN,":utf8");
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| 158 |
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| 159 | my $line;
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| 160 | while (defined ($line=<JSIN>)) {
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| 161 | $content .= $line;
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| 162 | }
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| 163 | close(JSIN);
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| 164 | }
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| 165 | else {
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| 166 | print STDERR "Error: Failed to open cached file $ofilename for input\n";
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| 167 | print STDERR " $!\n";
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| 168 | }
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| 169 | }
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| 170 |
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| 171 | return $content;
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| 172 | }
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| 173 |
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| 174 | sub json_structure_data_api
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| 175 | {
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| 176 | my ($htid,$ofilename) = @_;
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| 177 |
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| 178 | my $json_content = "";
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| 179 |
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| 180 | if (!-f $ofilename) {
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| 181 | print STDERR "Downloading METS structure record for $htid\n";
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| 182 |
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| 183 | my $response = _data_api("structure",$htid, undef, {'alt' => "json"} );
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| 184 | $json_content = $response->content();
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| 185 |
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| 186 | if (open(JSOUT,">$ofilename")) {
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| 187 | binmode(JSOUT,":utf8");
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| 188 | print JSOUT $json_content;
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| 189 | close(JSOUT);
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| 190 | }
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| 191 | else {
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| 192 | print STDERR "Error: Failed to open $ofilename for output\n";
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| 193 | print STDERR " $!\n";
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| 194 | }
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| 195 |
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| 196 | }
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| 197 | else {
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| 198 | print STDERR "Skipping Structure Data API request\n";
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| 199 | print STDERR "=> Using cached version of JSON structure file:\n $ofilename\n";
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| 200 |
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| 201 | if (open(JSIN,"<$ofilename")) {
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| 202 | binmode(JSIN,":utf8");
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| 203 |
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| 204 | my $line;
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| 205 | while (defined ($line=<JSIN>)) {
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| 206 | $json_content .= $line;
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| 207 | }
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| 208 | close(JSIN);
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| 209 | }
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| 210 | else {
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| 211 | print STDERR "Error: Failed to open cached JSON file $ofilename for input\n";
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| 212 | print STDERR " $!\n";
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| 213 | }
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| 214 | }
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| 215 |
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| 216 | ## print "**** $json_content\n";
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| 217 |
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| 218 | my $json_content_utf8 = Encode::encode("utf8",$json_content);
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| 219 | my $json_data = decode_json $json_content_utf8;
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| 220 |
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| 221 | return $json_data;
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| 222 |
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| 223 |
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| 224 | }
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| 225 |
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| 226 |
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| 227 | # Example file
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| 228 |
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| 229 | #<PagedDocument>
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| 230 | # <Metadata name="Title">Matariki 1881</Metadata>
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| 231 | # <Metadata name="Date">18810423</Metadata>
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| 232 | # <Metadata name="Number">1</Metadata>
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| 233 | # <PageGroup>
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| 234 | # <Metadata name="Title">Supplementary Material</Metadata>
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| 235 | # <Page txtfile="abstracts/23__1abstract.txt">
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| 236 | # <Metadata name="Title">Abstract</Metadata>
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| 237 | # </Page>
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| 238 | # </PageGroup>
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| 239 | # <PageGroup>
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| 240 | # <Metadata name="Title">Newspaper pages</Metadata>
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| 241 | # <Page pagenum="1" imgfile="images/23__1_1.gif" txtfile="text/23__1_1.txt"/>
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| 242 | # <Page pagenum="2" imgfile="images/23__1_2.gif" txtfile="text/23__1_2.txt"/>
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| 243 | # <Page pagenum="3" imgfile="images/23__1_3.gif" txtfile="text/23__1_3.txt"/>
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| 244 | # </PageGroup>
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| 245 | #</PagedDocument>
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| 246 |
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| 247 | sub rec_paged_image_structure
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| 248 | {
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[26442] | 249 | my ($this_div,$pagenum,$depth,$htid,$file_id_map,$resource_output_dir) = @_;
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[26436] | 250 |
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| 251 | my ($local_output_dir) = ($resource_output_dir =~ m/^.*\/(.*?)$/);
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| 252 |
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| 253 |
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| 254 | my $fptr_entry = $this_div->{'METS:fptr'};
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[26442] | 255 |
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| 256 | if (defined $this_div->{'METS:div'}) {
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| 257 | # Only want Greenstones <PageGroup> tag if not a METS leaf div
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| 258 | print PIOUT " " x $depth, "<PageGroup>\n";
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| 259 | }
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[26436] | 260 |
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| 261 | if (defined $fptr_entry) {
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| 262 | # hit a leaf node
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| 263 |
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| 264 | my $fptr_array = undef;
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| 265 |
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| 266 | if (ref $fptr_entry eq "HASH") {
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| 267 | $fptr_array = [ $fptr_entry ];
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| 268 | }
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| 269 | else {
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| 270 | $fptr_array = $fptr_entry;
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| 271 | }
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| 272 |
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| 273 | my $imgfile = undef;
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| 274 | my $txtfile = undef;
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| 275 |
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[26442] | 276 |
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[26436] | 277 | foreach my $fptr_hash (@$fptr_array) {
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| 278 | my $fileid = $fptr_hash->{'FILEID'};
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| 279 |
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| 280 | ## print STDERR "Looking up fileid = $fileid\n";
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| 281 |
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| 282 | my $file = $file_id_map->{$fileid};
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| 283 | my $seq = $file->{'SEQ'};
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| 284 | my $href = $file->{'METS:FLocat'}->{'xlink:href'};
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| 285 |
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[26442] | 286 |
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[26436] | 287 | if ($file->{'USE'} =~ m/\bimage\b/i) {
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| 288 | $imgfile = "$local_output_dir/$href";
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| 289 | my $full_imgfile = "$resource_output_dir/$href";
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| 290 | pageimage_data_api($htid,$seq,$full_imgfile);
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| 291 | }
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| 292 | elsif ($file->{'USE'} =~ m/\bocr\b/i) {
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| 293 | $txtfile = "$local_output_dir/$href";
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| 294 | my $full_txtfile = "$resource_output_dir/$href";
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| 295 | pageocr_data_api($htid,$seq,$full_txtfile);
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| 296 | }
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[26442] | 297 |
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[26436] | 298 | }
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| 299 | # Generate line along the following lines
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| 300 |
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| 301 | # <Page pagenum="1" imgfile="images/23__1_1.gif" txtfile="text/23__1_1.txt"/>
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| 302 | print PIOUT " " x ($depth+1), "<Page ";
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| 303 | print PIOUT "pagenum=\"$pagenum\" " if defined $pagenum;
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| 304 | print PIOUT "imgfile=\"$imgfile\" " if defined $imgfile;
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| 305 | print PIOUT "txtfile=\"$txtfile\" " if defined $txtfile;
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| 306 | print PIOUT "/>\n";
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| 307 |
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| 308 | }
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| 309 |
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| 310 | # Now process any child divs
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| 311 |
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| 312 | my $div_entry = $this_div->{'METS:div'};
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| 313 |
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| 314 | if (defined $div_entry) {
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| 315 |
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| 316 | my $div_array = undef;
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| 317 |
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| 318 | if (ref $div_entry eq "HASH") {
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| 319 | # upgrade single entry to array
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| 320 | $div_array = [ $div_entry ];
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| 321 | }
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| 322 | else {
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| 323 | $div_array = $div_entry;
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| 324 | }
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| 325 |
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[26442] | 326 | print STDERR "+ Processing ", scalar(@$div_array), " sections\n";
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| 327 |
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[26436] | 328 | foreach my $div_hash (@$div_array) {
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| 329 |
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| 330 | my $pagenum = $div_hash->{'ORDER'};
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| 331 |
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[26442] | 332 | rec_paged_image_structure($div_hash,$pagenum,$depth+1,$htid,$file_id_map,$resource_output_dir);
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[26436] | 333 | }
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| 334 | }
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| 335 |
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[26442] | 336 | if (defined $this_div->{'METS:div'}) {
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| 337 | # Only want Greenstones <PageGroup> tag if not a METS leaf div
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| 338 | print PIOUT " " x $depth, "</PageGroup>\n";
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| 339 | }
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[26436] | 340 |
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| 341 |
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| 342 | }
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| 343 |
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| 344 | sub generate_paged_image_structure
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| 345 | {
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| 346 | my ($toplevel_div,$htid,$file_id_map,$ofilename) = @_;
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| 347 |
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| 348 | print STDERR "Generating PageImage file: $ofilename\n";
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| 349 |
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| 350 | my ($resource_output_dir) = ($ofilename =~ m/^(.*)\..+?$/);
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| 351 | if (!-d $resource_output_dir) {
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| 352 | mkdir $resource_output_dir;
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| 353 | }
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| 354 |
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| 355 | if (open(PIOUT,">$ofilename")) {
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| 356 | binmode(PIOUT,":utf8");
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[26442] | 357 |
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| 358 | print PIOUT "<PagedDocument>\n";
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| 359 | # print PIOUT " <PageGroup>\n";
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[26436] | 360 |
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[26442] | 361 | rec_paged_image_structure($toplevel_div,1,1,$htid,$file_id_map,$resource_output_dir);
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[26436] | 362 |
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[26442] | 363 | # print PIOUT " </PageGroup>\n";
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| 364 | print PIOUT "</PagedDocument>\n";
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| 365 |
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[26436] | 366 | close(PIOUT);
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| 367 | }
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| 368 | else {
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| 369 | print STDERR "Error: Failed to open $ofilename for output\n";
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| 370 | print STDERR " $!\n";
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| 371 | }
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| 372 |
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| 373 |
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| 374 |
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| 375 | }
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| 376 |
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| 377 |
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[26442] | 378 | my $pdCount = 0;
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| 379 |
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[26436] | 380 | sub download_ht_doc
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| 381 | {
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| 382 | my ($cat_key,$htid,$ofilename) = @_;
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| 383 |
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| 384 | my $json_data = json_structure_data_api($htid,$ofilename);
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| 385 |
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| 386 | # Map in the IDs from:
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| 387 | # METS:mets->METS:fileSec->METS:fileGrp
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| 388 |
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| 389 | my $file_sec_ids = {};
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| 390 |
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| 391 | my $file_grp_array = $json_data->{'METS:mets'}->{'METS:fileSec'}->{'METS:fileGrp'};
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| 392 |
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| 393 | # print "**** num file grps = ", scalar(@$file_grp_array), "\n";
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| 394 |
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| 395 | foreach my $file_grp (@$file_grp_array) {
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| 396 |
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| 397 | my $use = $file_grp->{'USE'};
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| 398 |
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| 399 | my $file_entry = $file_grp->{'METS:file'};
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| 400 |
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| 401 | my $file_array = undef;
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| 402 |
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| 403 | if (ref $file_entry eq "HASH") {
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| 404 | # upgrade single entry into array
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| 405 | $file_array = [ $file_entry ];
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| 406 | }
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| 407 | else {
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| 408 | $file_array = $file_entry;
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| 409 | }
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| 410 |
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| 411 | # print "**** num files = ", scalar(@$file_array), "\n";
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| 412 |
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| 413 | foreach my $file_hash (@$file_array) {
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| 414 | # push file_grp USE attribute down into each file entry (to make file easier later on)
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| 415 | $file_hash->{'USE'} = $use;
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| 416 |
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| 417 | my $file_id = $file_hash->{'ID'};
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| 418 | $file_sec_ids->{$file_id} = $file_hash;
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| 419 |
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| 420 | # print "file id = $file_id\n";
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| 421 | }
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| 422 |
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| 423 | }
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| 424 |
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| 425 | # METS:mets->METS:structMap->{nested METS:div}+
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| 426 |
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| 427 | my $struct_map_array = $json_data->{'METS:mets'}->{'METS:structMap'};
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| 428 | my $toplevel_div = $struct_map_array->{'METS:div'};
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| 429 |
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| 430 | my $pi_filename = $ofilename;
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| 431 | $pi_filename =~ s/_structure\.json$/_item.xml/;
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| 432 |
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| 433 | generate_paged_image_structure($toplevel_div,$htid,$file_sec_ids,$pi_filename);
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| 434 |
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| 435 |
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| 436 | ## print "**** json_content = $json_content_utf8\n\n";
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| 437 |
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[26442] | 438 | $pdCount++;
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[26436] | 439 |
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[26442] | 440 | # if ($pdCount>5) {
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| 441 | # exit 0;
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| 442 | # }
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| 443 |
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[26436] | 444 | }
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| 445 |
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| 446 | sub read_json_file
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| 447 | {
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| 448 | my ($filename) = @_;
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| 449 |
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| 450 | print STDERR "+ Proccessing file: $filename\n";
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| 451 |
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| 452 | my $json_file_content = "";
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| 453 | open(JSON_FILE, "<$filename");
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| 454 | binmode(JSON_FILE,":utf8");
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| 455 |
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| 456 | my $line;
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| 457 | while (defined ($line=<JSON_FILE>)) {
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| 458 | $json_file_content .= $line;
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| 459 | }
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| 460 |
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| 461 | close(JSON_FILE);
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| 462 |
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| 463 | my $json_file_content_utf8 = Encode::encode("utf8",$json_file_content);
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| 464 | my $json_data = decode_json $json_file_content_utf8;
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| 465 |
|
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| 466 | my $record_hash = $json_data->{'records'};
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| 467 | my @record_keys = keys %$record_hash;
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| 468 | my $primary_cat_key = shift @record_keys;
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| 469 |
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[26442] | 470 | my $items_entry = $json_data->{'items'};
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| 471 | my $items_array;
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| 472 |
|
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| 473 | print STDERR "*** ref: ", ref $items_entry, "\n\n";
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| 474 |
|
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| 475 |
|
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| 476 | if (ref $items_entry eq "HASH") {
|
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| 477 | $items_array = [ $items_entry ];
|
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| 478 | }
|
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| 479 | else {
|
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| 480 | $items_array = $items_entry;
|
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| 481 | }
|
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| 482 |
|
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[26436] | 483 | my $num_items = scalar(@$items_array);
|
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| 484 |
|
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| 485 | my $num_pd = 0;
|
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| 486 |
|
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| 487 | foreach my $item (@$items_array) {
|
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| 488 |
|
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| 489 | my $htid = $item->{'htid'};
|
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| 490 | my $rights_code = $item->{'rightsCode'};
|
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| 491 |
|
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| 492 | # print "htid = $htid\n";
|
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| 493 | # print "Rights code = $rights_code\n" if defined $rights_code;
|
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| 494 |
|
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| 495 | if (defined($rights_code) && ($rights_code eq "pd")) {
|
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| 496 | # in the public domain
|
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| 497 | $num_pd++;
|
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| 498 |
|
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| 499 | my $htid_safe = uri_escape($htid);
|
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| 500 |
|
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| 501 | my $ofilename = $filename;
|
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| 502 | $ofilename =~ s/\.json/_structure.json/;
|
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| 503 |
|
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| 504 | download_ht_doc($primary_cat_key,$htid,$ofilename);
|
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| 505 |
|
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| 506 | # bail out at first public domain version of document
|
---|
| 507 | last;
|
---|
| 508 | }
|
---|
| 509 | }
|
---|
| 510 |
|
---|
| 511 | # if ($num_pd==0) {
|
---|
| 512 | # print "++ $num_items item(s)\n";
|
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| 513 | # }
|
---|
| 514 | # else {
|
---|
| 515 | # print "++ $num_items item(s) *of* *which* $num_pd is/are in the public domain\n";
|
---|
| 516 | # }
|
---|
| 517 |
|
---|
| 518 | }
|
---|
| 519 |
|
---|
| 520 |
|
---|
| 521 | sub process_dir
|
---|
| 522 | {
|
---|
| 523 | my ($full_dir) = @_;
|
---|
| 524 |
|
---|
| 525 | # print "Processing directory: $full_dir\n";
|
---|
| 526 |
|
---|
| 527 | if (opendir(DIN, $full_dir)) {
|
---|
[26442] | 528 | my @dir_content = grep { $_ !~ m/^\./ } sort readdir(DIN);
|
---|
[26436] | 529 | closedir DIN;
|
---|
| 530 |
|
---|
| 531 | foreach my $df (@dir_content) {
|
---|
| 532 | my $full_df = "$full_dir/$df";
|
---|
| 533 | if (-d $full_df) {
|
---|
| 534 | my $full_sub_dir = $full_df;
|
---|
| 535 | process_dir($full_sub_dir);
|
---|
| 536 | }
|
---|
| 537 | else {
|
---|
| 538 | # file
|
---|
| 539 | my $full_file = $full_df;
|
---|
| 540 | if ($full_file =~ m/\.json$/) {
|
---|
| 541 | read_json_file($full_file);
|
---|
| 542 | }
|
---|
| 543 | }
|
---|
| 544 | }
|
---|
| 545 |
|
---|
| 546 | }
|
---|
| 547 | else {
|
---|
| 548 |
|
---|
| 549 | print STDERR "Error: Failed to open directory: $full_dir\n";
|
---|
| 550 | print STDERR " $!\n";
|
---|
| 551 | }
|
---|
| 552 |
|
---|
| 553 | }
|
---|
| 554 |
|
---|
| 555 |
|
---|
| 556 | sub main
|
---|
| 557 | {
|
---|
| 558 | my ($argv_ref) = @_;
|
---|
| 559 |
|
---|
| 560 | my $toplevel_dir = shift @$argv_ref || "output";
|
---|
| 561 |
|
---|
| 562 |
|
---|
| 563 | $toplevel_dir =~ s/\/$//; # remove any trailing /
|
---|
| 564 |
|
---|
| 565 | process_dir($toplevel_dir);
|
---|
| 566 |
|
---|
| 567 | }
|
---|
| 568 |
|
---|
| 569 | main(\@ARGV);
|
---|