[9952] | 1 | #!/usr/bin/perl -w
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| 2 |
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| 3 | ###########################################################################
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| 4 | #
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| 5 | # importfrom.pl --
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| 6 | # A component of the Greenstone digital library software
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| 7 | # from the New Zealand Digital Library Project at the
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| 8 | # University of Waikato, New Zealand.
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| 9 | #
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| 10 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 11 | #
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| 12 | # This program is free software; you can redistribute it and/or modify
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| 13 | # it under the terms of the GNU General Public License as published by
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| 14 | # the Free Software Foundation; either version 2 of the License, or
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| 15 | # (at your option) any later version.
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| 16 | #
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| 17 | # This program is distributed in the hope that it will be useful,
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| 18 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 20 | # GNU General Public License for more details.
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| 21 | #
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| 22 | # You should have received a copy of the GNU General Public License
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| 23 | # along with this program; if not, write to the Free Software
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| 24 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 25 | #
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| 26 | ###########################################################################
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| 27 |
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| 28 |
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| 29 | # This program will contact the named DL server
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| 30 | # and export its metadata and (optionally) it documents.
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| 31 |
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| 32 | # Currently only designed for OAI exporting
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| 33 |
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| 34 | BEGIN {
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| 35 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
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| 36 | die "GSDLOS not set\n" unless defined $ENV{'GSDLOS'};
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| 37 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib");
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| 38 | }
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| 39 |
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| 40 | use colcfg;
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| 41 | use util;
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[28560] | 42 | use FileUtils;
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[9952] | 43 | use parsargv;
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| 44 | use FileHandle;
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| 45 |
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| 46 | my $wgetopt = "";
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| 47 |
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| 48 | my $num_processed = 0;
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| 49 |
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| 50 | sub print_usage {
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| 51 | print STDERR "\n usage: $0 [options] collection-name\n\n";
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| 52 | print STDERR " options:\n";
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| 53 | print STDERR " -verbosity number 0=none, 3=lots\n";
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| 54 | print STDERR " -getdoc Also download if source document if present\n";
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| 55 | print STDERR " -importdir directory Where the original material lives\n";
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| 56 | print STDERR " -keepold Will not destroy the current contents of the\n";
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| 57 | print STDERR " import directory (the default)\n";
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| 58 | print STDERR " -removeold Will remove the old contents of the import\n";
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| 59 | print STDERR " directory -- use with care\n";
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| 60 | print STDERR " -gzip Use gzip to compress exported documents\n";
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[17198] | 61 | print STDERR " (don't forget to include ZIPPlugin in your plugin\n";
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[9952] | 62 | print STDERR " -maxdocs number Maximum number of documents to import\n";
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| 63 | print STDERR " -debug Print imported text to STDOUT\n";
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| 64 | print STDERR " -collectdir directory Collection directory (defaults to " .
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[28560] | 65 | &FileUtils::filenameConcatenate($ENV{'GSDLHOME'}, "collect") . ")\n";
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[9952] | 66 | print STDERR " -out Filename or handle to print output status to.\n";
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| 67 | print STDERR " The default is STDERR\n\n";
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| 68 | }
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| 69 |
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| 70 |
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| 71 |
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| 72 | sub xml_pretty_print
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| 73 | {
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| 74 | my ($text,$out,$verbosity) = @_;
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| 75 |
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| 76 | if (system("xmllint --version >/dev/null 2>&1")!=0) {
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| 77 | if ($verbosity>1) {
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| 78 | print STDERR "Warning: Unable to find xmllint for pretty printing.\n";
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| 79 | print STDERR " XML will be shown verbatim.\n\n";
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| 80 | }
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| 81 | print $out $text;
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| 82 | }
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| 83 | else {
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| 84 |
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| 85 | if (!open (PPOUT,"|xmllint --format -")) {
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| 86 | print STDERR "Error running xmllint: $!\n\n";
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| 87 | print $out $text;
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| 88 | return;
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| 89 | }
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| 90 |
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| 91 | print PPOUT $text;
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| 92 | close(PPOUT);
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| 93 | }
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| 94 | }
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| 95 |
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| 96 | sub wget_oai_url
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| 97 | {
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| 98 | my ($wget_cmd,$out,$verbosity) = @_;
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| 99 |
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[28560] | 100 | # the wget binary is dependent on the gnomelib_env (particularly lib/libiconv2.dylib) being set, particularly on Mac Lions (android too?)
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| 101 | &util::set_gnomelib_env(); # this will set the gnomelib env once for each subshell launched, by first checking if GEXTGNOME is not already set
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| 102 |
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[9952] | 103 | if ($verbosity>2) {
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| 104 | print $out " $wget_cmd\n";
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| 105 | }
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| 106 |
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| 107 | open (OAIIN,"$wget_cmd |")
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| 108 | || die "wget request failed: $!\n";
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| 109 |
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| 110 | my $li_record = "";
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| 111 |
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| 112 | my $line;
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| 113 | while (defined($line=<OAIIN>))
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| 114 | {
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| 115 | $li_record .= $line;
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| 116 | # print $out $line;
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| 117 | }
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| 118 |
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| 119 | close(OAIIN);
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| 120 |
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| 121 | return $li_record;
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| 122 | }
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| 123 |
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| 124 | sub oai_info
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| 125 | {
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| 126 | my ($base_url,$out,$verbosity) = @_;
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| 127 |
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| 128 | my $base_wget_cmd = "wget $wgetopt -q -O - \"$base_url?_OPTS_\"";
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| 129 |
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| 130 | my $identify = "verb=Identify";
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| 131 | my $list_sets = "verb=ListSets";
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| 132 | my $list_md_formats = "ListMetadataFormats"; # not currently used
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| 133 |
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| 134 | my $identify_cmd = $base_wget_cmd;
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| 135 | $identify_cmd =~ s/_OPTS_/$identify/;
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| 136 | print $out "-------------------\n";
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| 137 | print $out "General Information\n";
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| 138 | print $out "-------------------\n";
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| 139 | my $identify_text = wget_oai_url($identify_cmd,$out,$verbosity);
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| 140 | xml_pretty_print($identify_text,$out,$verbosity);
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| 141 |
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| 142 |
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| 143 | my $list_sets_cmd = $base_wget_cmd;
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| 144 | $list_sets_cmd =~ s/_OPTS_/$list_sets/;
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| 145 | print $out "-------------------\n";
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| 146 | print $out "Set Information\n";
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| 147 | print $out "-------------------\n";
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| 148 | my $list_sets_text = wget_oai_url($list_sets_cmd,$out,$verbosity);
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| 149 | xml_pretty_print($list_sets_text,$out,$verbosity);
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| 150 | }
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| 151 |
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| 152 |
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| 153 | sub get_oai_ids
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| 154 | {
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| 155 | my ($base_url, $set, $format, $out, $verbosity) = @_;
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| 156 |
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| 157 | print $out "Requesting list of identifiers ...\n";
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| 158 |
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| 159 | my $base_wget_cmd = "wget $wgetopt -q -O - \"$base_url?_OPTS_\"";
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| 160 | my $identifiers_cmd = $base_wget_cmd;
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| 161 |
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| 162 | my $identifiers_opts = "verb=ListIdentifiers&metadataPrefix=$format";
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| 163 |
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| 164 | if (defined $set && ($set ne "")) {
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| 165 | $identifiers_opts .= "&set=$set";
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| 166 | }
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| 167 |
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| 168 | $identifiers_cmd =~ s/_OPTS_/$identifiers_opts/;
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| 169 |
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| 170 | my $li_record = wget_oai_url($identifiers_cmd,$out,$verbosity);
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| 171 |
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| 172 | print $out "... Done.\n";
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| 173 |
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| 174 | return $li_record;
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| 175 | }
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| 176 |
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| 177 | sub parse_oai_ids
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| 178 | {
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| 179 | my ($li_record, $out, $verbosity) = @_;
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| 180 |
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| 181 | # extract identifier list
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| 182 | $li_record =~ s/^.*?<identifier>/<identifier>/s;
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| 183 | $li_record =~ s/^(.*<\/identifier>).*$/$1/s;
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| 184 |
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| 185 | my @ids = ();
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| 186 |
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| 187 | while ($li_record =~ m/<identifier>(.*?)<\/identifier>(.*)$/s)
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| 188 | {
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| 189 | $li_record = $2;
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| 190 | push(@ids,$1);
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| 191 | }
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| 192 |
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| 193 | return \@ids;
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| 194 | }
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| 195 |
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| 196 |
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| 197 | sub dir_file_split
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| 198 | {
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| 199 | my ($file) = @_;
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| 200 |
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| 201 | my @dirs = split("/",$file);
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| 202 | my $local_file = pop(@dirs);
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| 203 | my $sub_dirs = join("/",@dirs);
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| 204 |
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| 205 | return ($sub_dirs,$local_file);
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| 206 | }
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| 207 |
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| 208 | sub get_oai_document
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| 209 | {
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| 210 | my ($doc_url,$output_dir, $out) = @_;
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| 211 |
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| 212 | my ($id_dir,$id_fname) = dir_file_split($doc_url);
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| 213 |
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| 214 | print $out "Getting document $doc_url\n";
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| 215 |
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[28560] | 216 | &FileUtils::makeDirectory($output_dir) if (!-e "$output_dir");
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[9952] | 217 |
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[28560] | 218 | my $full_id_fname = &FileUtils::filenameConcatenate($output_dir,$id_fname);
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[9952] | 219 |
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[14178] | 220 | my $wget_cmd = "wget $wgetopt --quiet -O \"$full_id_fname\" \"$doc_url\"";
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[9952] | 221 |
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[28560] | 222 | # the wget binary is dependent on the gnomelib_env (particularly lib/libiconv2.dylib) being set, particularly on Mac Lions (android too?)
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| 223 | &util::set_gnomelib_env(); # this will set the gnomelib env once for each subshell launched, by first checking if GEXTGNOME is not already set
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| 224 |
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[9952] | 225 | if (system($wget_cmd)!=0) {
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| 226 | print STDERR "Error: failed to execute $wget_cmd\n";
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| 227 | return 0;
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| 228 | }
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| 229 |
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| 230 | return 1;
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| 231 | }
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| 232 |
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| 233 | sub get_oai_records
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| 234 | {
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| 235 | my ($base_url,$format, $ids,$output_dir, $get_id, $maxdocs, $out) = @_;
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| 236 |
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| 237 | my $doc_count = 0;
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| 238 |
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| 239 | my $i;
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| 240 | foreach $i ( @$ids )
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| 241 | {
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| 242 | # wget it;
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| 243 | my $url = "$base_url?verb=GetRecord&metadataPrefix=$format";
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| 244 | $url .= "&identifier=$i";
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| 245 | print $out "Downloading metadata record for $i\n";
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| 246 |
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| 247 | my $i_url = $i; #convert OAI set separators (:) to directory sep
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| 248 | $i_url =~ s/:/\//g;
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| 249 | my $file_i_url = "$output_dir/$i_url.oai";
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| 250 |
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| 251 | my $ds = &util::get_dirsep();
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| 252 | my $i_os = $i; #convert OAI set separators (:) to OS dir sep
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| 253 | $i_os =~ s/:/$ds/g;
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[28560] | 254 | my $file_i = &FileUtils::filenameConcatenate($output_dir,"$i_os.oai");
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[9952] | 255 |
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| 256 | # obtain record
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| 257 | my $wget_cmd = "wget $wgetopt -q -O - \"$url\"";
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| 258 |
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[28560] | 259 | # the wget binary is dependent on the gnomelib_env (particularly lib/libiconv2.dylib) being set, particularly on Mac Lions (android too?)
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| 260 | &util::set_gnomelib_env(); # this will set the gnomelib env once for each subshell launched, by first checking if GEXTGNOME is not already set
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| 261 |
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[9952] | 262 | open (OAIIN,"$wget_cmd|")
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| 263 | || die "wget request failed: $!\n";
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| 264 | my $i_record = "";
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| 265 |
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| 266 | my $line;
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| 267 | while (defined($line=<OAIIN>))
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| 268 | {
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| 269 | $i_record .= $line;
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| 270 | }
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| 271 |
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| 272 | close(OAIIN);
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| 273 |
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| 274 | $num_processed++;
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| 275 |
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| 276 | # prepare subdirectory for record (if needed)
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| 277 | my ($i_dir,$unused) = dir_file_split($file_i_url);
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| 278 |
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[28560] | 279 | &FileUtils::makeAllDirectories($i_dir);
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[9952] | 280 |
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| 281 | # look out for identifier tag in metadata section
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| 282 | if ($i_record =~ m/<metadata>(.*)<\/metadata>/s)
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| 283 | {
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| 284 | my $m_record = $1;
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| 285 |
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| 286 | if ($get_id)
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| 287 | {
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| 288 | my $got_doc = 0;
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| 289 |
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| 290 | my @url_matches = ($m_record =~ m/<(?:dc:)?identifier>(.*?)<\/(?:dc:)?identifier>/gs);
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| 291 | foreach my $doc_url (@url_matches)
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| 292 | {
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| 293 | if ($doc_url =~ m/^(http|ftp):/) {
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| 294 |
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| 295 | my $revised_doc_url = $doc_url;
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| 296 | ## $revised_doc_url =~ s/hdl\.handle\.net/mcgonagall.cs.waikato.ac.nz:8080\/dspace\/handle/;
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| 297 |
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[28560] | 298 | my $srcdocs_dir = &FileUtils::filenameConcatenate($i_dir,"srcdocs");
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[9952] | 299 |
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| 300 | if (get_oai_document($revised_doc_url,$srcdocs_dir, $out)) {
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| 301 |
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| 302 | $got_doc = 1;
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| 303 | my ($id_dir,$id_fname) = dir_file_split($revised_doc_url);
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| 304 |
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| 305 | $i_record =~ s/<metadata>(.*?)<(dc:)?identifier>$doc_url<\/(dc:)?identifier>(.*?)<\/metadata>/<metadata>$1<OrigURL>$doc_url<\/OrigURL>\n <identifier>srcdocs\/$id_fname<\/identifier>$4<\/metadata>/s;
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| 306 |
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| 307 | }
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| 308 | }
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| 309 |
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| 310 | if (!$got_doc) {
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| 311 | $i_record =~ s/<metadata>(.*?)<(dc:)?identifier>$doc_url<\/(dc:)?identifier>(.*?)<\/metadata>/<metadata>$1<OrigIdentifier>$doc_url<\/OrigIdentifier>$4<\/metadata>/s;
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| 312 | }
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| 313 | }
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| 314 | }
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| 315 | }
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| 316 |
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| 317 | # save record
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| 318 | open (OAIOUT,">$file_i")
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| 319 | || die "Unable to save oai metadata record: $!\n";
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| 320 | print OAIOUT $i_record;
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| 321 | close(OAIOUT);
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| 322 |
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| 323 | $doc_count++;
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| 324 | last if ($doc_count == $maxdocs);
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| 325 | }
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| 326 | }
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| 327 |
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| 328 |
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| 329 | sub main {
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| 330 | my ($verbosity, $importdir, $keepold,
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| 331 | $getdoc, $acquire_info, $acquire_set,
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| 332 | $removeold, $gzip, $groupsize, $debug, $maxdocs, $collection,
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| 333 | $configfilename, $collectcfg,
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| 334 | $out, $collectdir);
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| 335 |
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| 336 | if (!parsargv::parse(\@ARGV,
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| 337 | 'verbosity/\d+/2', \$verbosity,
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| 338 | 'getdoc', \$getdoc,
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| 339 | 'info', \$acquire_info,
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| 340 | 'importdir/.*/', \$importdir,
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| 341 | 'keepold', \$keepold,
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| 342 | 'removeold', \$removeold,
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| 343 | 'gzip', \$gzip,
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| 344 | 'debug', \$debug,
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| 345 | 'maxdocs/^\-?\d+/-1', \$maxdocs,
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| 346 | 'collectdir/.*/', \$collectdir,
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| 347 | 'out/.*/STDERR', \$out)) {
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| 348 | &print_usage();
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| 349 | die "\n";
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| 350 | }
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| 351 |
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| 352 | my $close_out = 0;
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| 353 | if ($out !~ /^(STDERR|STDOUT)$/i) {
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| 354 | open (OUT, ">$out") || die "Couldn't open output file $out\n";
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| 355 | $out = 'import::OUT';
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| 356 | $close_out = 1;
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| 357 | }
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| 358 | $out->autoflush(1);
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| 359 |
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| 360 | # set removeold to false if it has been defined
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| 361 | $removeold = 0 if ($keepold);
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| 362 |
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| 363 | # get and check the collection name
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| 364 | if (($collection = &util::use_collection(@ARGV, $collectdir)) eq "") {
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| 365 | &print_usage();
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| 366 | die "\n";
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| 367 | }
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| 368 |
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| 369 |
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| 370 | # get acquire list
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| 371 | my $acquire = [];
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[28560] | 372 | $configfilename = &FileUtils::filenameConcatenate($ENV{'GSDLCOLLECTDIR'}, "etc", "collect.cfg");
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[9952] | 373 | if (-e $configfilename) {
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| 374 | $collectcfg = &colcfg::read_collect_cfg ($configfilename);
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| 375 | if (defined $collectcfg->{'acquire'}) {
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| 376 | $acquire = $collectcfg->{'acquire'};
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| 377 | }
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| 378 | if (defined $collectcfg->{'importdir'} && $importdir eq "") {
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| 379 | $importdir = $collectcfg->{'importdir'};
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| 380 | }
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| 381 | if (defined $collectcfg->{'removeold'}) {
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| 382 | if ($collectcfg->{'removeold'} =~ /^true$/i && !$keepold) {
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| 383 | $removeold = 1;
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| 384 | }
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| 385 | if ($collectcfg->{'removeold'} =~ /^false$/i && !$removeold) {
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| 386 | $removeold = 0;
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| 387 | }
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| 388 | }
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| 389 | } else {
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| 390 | die "Couldn't find the configuration file $configfilename\n";
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| 391 | }
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| 392 |
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| 393 | # fill in the default import directory if none
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| 394 | # were supplied, turn all \ into / and remove trailing /
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[28560] | 395 | $importdir = &FileUtils::filenameConcatenate($ENV{'GSDLCOLLECTDIR'}, "import") if $importdir eq "";
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[9952] | 396 | $importdir =~ s/[\\\/]+/\//g;
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| 397 | $importdir =~ s/\/$//;
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| 398 |
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| 399 | # remove the old contents of the import directory if needed
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| 400 | if ($removeold && -e $importdir) {
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| 401 | print $out "Warning - removing current contents of the import directory\n";
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| 402 | print $out " in preparation for the acquire\n";
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[28560] | 403 | &FileUtils::removeFilesRecursive($importdir);
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[9952] | 404 | }
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| 405 |
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| 406 | my $e;
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| 407 | foreach $e ( @$acquire )
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| 408 | {
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| 409 | my $acquire_type = shift @$e;
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| 410 | my $acquire_src = undef;
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| 411 |
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| 412 | if ($acquire_type ne "OAI") {
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| 413 | print STDERR "Warning: $acquire_type not currently supported. Skipping.\n";
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| 414 | next;
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| 415 | }
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| 416 |
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| 417 | my $store_getdoc = $getdoc;
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| 418 |
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| 419 | if (!parsargv::parse($e,
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| 420 | 'getdoc', \$getdoc,
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| 421 | 'set/.*/', \$acquire_set,
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| 422 | 'format/.*/oai_dc', \$metadata_format,
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| 423 | 'src/.*/', \$acquire_src)) {
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| 424 | &print_usage();
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| 425 | die "\n";
|
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| 426 | }
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| 427 |
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| 428 | if (!defined $acquire_src) {
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| 429 | print STDERR "Warning: Not -src flag defined. Skipping.\n";
|
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| 430 | next;
|
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| 431 | }
|
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| 432 |
|
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| 433 | if (defined $acquire_info && ($acquire_info)) {
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| 434 | oai_info($acquire_src,$out,$verbosity);
|
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| 435 | next;
|
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| 436 | }
|
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| 437 |
|
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| 438 | print $out "$acquire_type Acquire: from $acquire_src\n";
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| 439 |
|
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| 440 | my $li_record = get_oai_ids($acquire_src,$acquire_set,$metadata_format,
|
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| 441 | $out,$verbosity);
|
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| 442 | my $ids = parse_oai_ids($li_record,$out,$verbosity);
|
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| 443 |
|
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| 444 | get_oai_records($acquire_src,$metadata_format, $ids,$importdir,
|
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| 445 | $getdoc, $maxdocs, $out);
|
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| 446 | $getdoc = $store_getdoc;
|
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| 447 | }
|
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| 448 |
|
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| 449 | print "\nNumber of documents processed: $num_processed\n";
|
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| 450 |
|
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| 451 | close OUT if $close_out;
|
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| 452 | }
|
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| 453 |
|
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| 454 |
|
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| 455 | &main();
|
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| 456 |
|
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| 457 |
|
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| 458 |
|
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| 459 |
|
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| 460 |
|
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| 461 |
|
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| 462 |
|
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| 463 |
|
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