[29711] | 1 | ###########################################################################
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| 2 | #
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| 3 | # solrserver.pm -- class for starting and stopping the Solr with the
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| 4 | # GS3 tomcat server.
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| 5 | # A component of the Greenstone digital library software
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| 6 | # from the New Zealand Digital Library Project at the
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| 7 | # University of Waikato, New Zealand.
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| 8 | #
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| 9 | # Copyright (C) 1999 New Zealand Digital Library Project
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| 10 | #
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| 11 | # This program is free software; you can redistribute it and/or modify
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| 12 | # it under the terms of the GNU General Public License as published by
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| 13 | # the Free Software Foundation; either version 2 of the License, or
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| 14 | # (at your option) any later version.
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| 15 | #
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| 16 | # This program is distributed in the hope that it will be useful,
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| 17 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 19 | # GNU General Public License for more details.
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| 20 | #
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| 21 | # You should have received a copy of the GNU General Public License
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| 22 | # along with this program; if not, write to the Free Software
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| 23 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 24 | #
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| 25 | ###########################################################################
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| 26 |
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| 27 |
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| 28 | package solrserver;
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| 29 |
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| 30 | use strict;
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| 31 | #no strict 'refs';
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| 32 |
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| 33 | use solrutil;
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| 34 |
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| 35 | sub new {
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| 36 | my $class = shift(@_);
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| 37 | my ($build_dir) = @_;
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| 38 |
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| 39 | my $self = { 'build_dir' => $build_dir };
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| 40 |
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| 41 | my $search_path = &solrutil::get_search_path();
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| 42 |
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| 43 | $self->{'server_explicitly_started'} = undef;
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| 44 |
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[31490] | 45 | # set SOLR_HOST and SOLR_PORT env vars (tomcat host and port, if not using jetty)
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| 46 | # by calling ant get-default-solr-servlet if possible. Else fallback on whatever the existing env vars are.
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| 47 | # tomcat host and port would have been set up in the env as SOLR_HOST and SOLR_PORT
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| 48 | # In case someone changed the tomcat host/port, we want to update the solr server variables too
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| 49 | my $solr_url = &solrutil::get_solr_servlet_url();
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| 50 | # get the url parts, though we won't be using most of them
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| 51 | my ($protocol, $server_host, $server_port, $servlet_name) = &solrutil::get_solr_url_parts($solr_url);
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[29711] | 52 |
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[31490] | 53 | # set the solr server env vars to what was discovered, so that any other old perl code
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| 54 | # dependent on these env vars will have any changes propagated.
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| 55 | # (All perl code referencing these env vars should already be updated, but still...)
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| 56 | $ENV{'SOLR_HOST'} = $server_host;
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| 57 | $ENV{'SOLR_PORT'} = $server_port;
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| 58 |
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| 59 | $self->{'base-url'} = $solr_url; # e.g. of the form http://localhost:8383/solr
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| 60 | $self->{'admin-url'} = "$solr_url/admin/cores";
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[29711] | 61 |
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| 62 | return bless $self, $class;
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| 63 | }
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| 64 |
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[31490] | 65 | sub get_solr_base_url {
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| 66 | my $self = shift (@_);
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| 67 | return $self->{'base-url'};
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| 68 | }
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| 69 |
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[29711] | 70 | sub _wget_service
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| 71 | {
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| 72 | my $self = shift (@_);
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| 73 | my ($output_format,$url,$cgi_get_args) = @_;
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| 74 |
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| 75 | my $full_url = $url;
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| 76 |
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| 77 | $url .= "?$cgi_get_args" if (defined $cgi_get_args);
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| 78 |
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| 79 | print STDERR "\n\n**** _wget_service SOLR WEB URL: $url\n\n";
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| 80 |
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| 81 | # the wget binary is dependent on the gnomelib_env (particularly lib/libiconv2.dylib) being set, particularly on Mac Lion binaries (android too?)
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| 82 | &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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| 83 |
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| 84 | my $cmd = "wget -O - \"$url\" 2>&1";
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| 85 |
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| 86 | my $preamble_output = "";
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| 87 | my $xml_output = "";
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| 88 | my $error_output = undef;
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| 89 |
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| 90 | my $in_preamble = ($output_format eq "xml") ? 1 : 0;
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| 91 |
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| 92 | ## print STDERR "**** wgetcmd = \n $cmd\n";
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| 93 |
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| 94 | if (open(WIN,"$cmd |")) {
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| 95 |
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| 96 | my $line;
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| 97 | while (defined ($line=<WIN>)) {
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| 98 |
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| 99 | if ($line =~ m/ERROR \d+:/) {
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| 100 | chomp $line;
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| 101 | $error_output = $line;
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| 102 | last;
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| 103 | }
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| 104 | elsif ($line =~ m/failed: Connection refused/) {
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| 105 | chomp $line;
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| 106 | $error_output = $line;
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| 107 | last;
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| 108 | }
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| 109 | elsif ($in_preamble) {
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| 110 | if ($line =~ m/<.*>/) {
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| 111 | $in_preamble = 0;
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| 112 | }
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| 113 | else {
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| 114 | $preamble_output .= $line;
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| 115 | }
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| 116 | }
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| 117 |
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| 118 | if (! $in_preamble) {
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| 119 | $xml_output .= $line;
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| 120 | }
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| 121 | }
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| 122 | close(WIN);
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| 123 |
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| 124 | }
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| 125 | else {
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| 126 | $error_output = "Error: failed to run $cmd\n";
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| 127 | $error_output .= " $!\n";
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| 128 | }
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| 129 |
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| 130 | if(defined $error_output) {
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| 131 | print STDERR "\n\n**** WGET_SERVICE got an error: $error_output\n\n";
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| 132 | }
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| 133 |
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| 134 | my $output = { 'url' => $full_url,
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| 135 | 'preamble' => $preamble_output,
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| 136 | 'output' => $xml_output,
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| 137 | 'error' => $error_output };
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| 138 |
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| 139 | return $output;
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| 140 | }
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| 141 |
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| 142 |
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| 143 | sub _base_service
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| 144 | {
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| 145 | my $self = shift (@_);
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| 146 | my ($cgi_get_args) = @_;
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| 147 |
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| 148 | my $base_url = $self->{'base-url'};
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| 149 |
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| 150 | return $self->_wget_service("html",$base_url,$cgi_get_args);
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| 151 | }
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| 152 |
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| 153 | sub _admin_service
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| 154 | {
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| 155 | my $self = shift (@_);
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| 156 | my ($cgi_get_args) = @_;
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| 157 |
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| 158 | my $admin_url = $self->{'admin-url'};
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| 159 |
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| 160 | return $self->_wget_service("xml",$admin_url,$cgi_get_args);
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| 161 | }
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| 162 |
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| 163 |
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| 164 | sub server_running
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| 165 | {
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| 166 | my $self = shift @_;
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| 167 |
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| 168 | my $output = $self->_base_service();
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| 169 |
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| 170 | my $have_error = defined $output->{'error'};
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| 171 |
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| 172 | my $running = ($have_error) ? 0 : 1;
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| 173 |
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| 174 | return $running;
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| 175 | }
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| 176 |
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| 177 |
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| 178 | sub admin_ping_core
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| 179 | {
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| 180 | my $self = shift @_;
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| 181 | my ($core) = @_;
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| 182 |
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| 183 | my $cgi_get_args = "action=STATUS&core=$core";
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| 184 |
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| 185 | my $ping_status = 1;
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| 186 |
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| 187 | my $output = $self->_admin_service($cgi_get_args);
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| 188 |
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| 189 | if (defined $output->{'error'}) {
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| 190 | # severe error, such as failing to connect to the server
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| 191 | $ping_status = 0;
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| 192 |
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| 193 | my $url = $output->{'url'};
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| 194 | my $preamble = $output->{'preamble'};
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| 195 | my $error = $output->{'error'};
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| 196 |
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| 197 | print STDERR "----\n";
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| 198 | print STDERR "Error: Failed to get XML response from:\n";
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| 199 | print STDERR " $url\n";
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| 200 | print STDERR "Output was:\n";
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| 201 | print STDERR $preamble if ($preamble ne "");
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| 202 | print STDERR "$error\n";
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| 203 | print STDERR "----\n";
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| 204 | }
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| 205 | else {
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| 206 |
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| 207 | # If the collection doesn't exist yet, then there will be
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| 208 | # an empty element of the form:
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| 209 | # <lst name="collect-doc"/>
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| 210 | # where 'collect' is the actual name of the collection,
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| 211 | # such as demo
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| 212 |
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| 213 | my $xml_output = $output->{'output'};
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| 214 |
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| 215 | my $empty_element="<lst\\s+name=\"$core\"\\s*\\/>";
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| 216 |
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| 217 | $ping_status = !($xml_output =~ m/$empty_element/s);
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| 218 | }
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| 219 |
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| 220 | return $ping_status;
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| 221 | }
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| 222 |
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| 223 | sub filtered_copy
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| 224 | {
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| 225 | my $self = shift @_;
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| 226 |
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| 227 | my $src_file = shift @_;
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| 228 | my $dst_file = shift @_;
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| 229 | my $re_substitutions = shift @_;
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| 230 |
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| 231 | # $re_substitutions is a hashmap of the form: [re_key] => subst_str
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| 232 |
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| 233 | my $content = "";
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| 234 |
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| 235 | if (open(FIN,'<:utf8',$src_file)) {
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| 236 |
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| 237 | my $line;
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| 238 | while (defined($line=<FIN>)) {
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| 239 | $content .= $line;
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| 240 | }
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| 241 | }
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| 242 |
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| 243 | close(FIN);
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| 244 |
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| 245 | # perform RE string substitutions
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| 246 | foreach my $re_key (keys %$re_substitutions) {
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| 247 |
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| 248 | my $subst_str = $re_substitutions->{$re_key};
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| 249 |
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| 250 | # Perform substitution of the form:
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| 251 | # $content =~ s/$re_key/$subst_str/g;
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| 252 | # but allow allow separator char (default '/')
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| 253 | # and flags (default 'g') to be parameterized
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| 254 |
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| 255 | $content =~ s/$re_key/$subst_str/g;
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| 256 | }
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| 257 |
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| 258 | if (open(FOUT, '>:utf8', $dst_file)) {
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| 259 | print FOUT $content;
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| 260 | close(FOUT);
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| 261 | }
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| 262 | else {
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| 263 | print STDERR "Error: Failed to open file '$dst_file' for writing.\n$!\n";
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| 264 | }
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| 265 | }
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| 266 |
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| 267 | sub solr_xml_to_solr_xml_in
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| 268 | {
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| 269 | my $self = shift @_;
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| 270 | my ($solr_xml_dir) = @_;
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| 271 |
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| 272 | my $gsdl3home = $ENV{'GSDL3HOME'};
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| 273 |
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| 274 | if (!defined $solr_xml_dir || !-d $solr_xml_dir) {
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| 275 | # if not passed in, use stored solr_live_home
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| 276 | $solr_xml_dir = $self->{'solr_live_home'};
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| 277 | }
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| 278 |
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| 279 | my $solrxml_in = &util::filename_cat($solr_xml_dir, "solr.xml.in");
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| 280 | my $solrxml = &util::filename_cat($solr_xml_dir, "solr.xml");
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| 281 |
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| 282 | my $gsdl3home_re = &util::filename_to_regex($gsdl3home);
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| 283 |
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| 284 | my $replacement_map = { qr/$gsdl3home_re/ => "\@gsdl3home\@" };
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| 285 |
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| 286 | $self->filtered_copy($solrxml,$solrxml_in,$replacement_map);
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| 287 | }
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| 288 |
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| 289 |
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| 290 | sub solr_xml_in_to_solr_xml
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| 291 | {
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| 292 | my $self = shift @_;
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| 293 | my ($solr_xml_dir) = @_;
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| 294 |
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| 295 | my $gsdl3home = $ENV{'GSDL3HOME'};
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| 296 | if (!defined $solr_xml_dir || !-d $solr_xml_dir) {
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| 297 | # if not passed in, use stored solr home
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| 298 | $solr_xml_dir = $self->{'solr_live_home'};
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| 299 | }
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| 300 | my $solrxml_in = &util::filename_cat($solr_xml_dir, "solr.xml.in");
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| 301 | my $solrxml = &util::filename_cat($solr_xml_dir, "solr.xml");
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| 302 |
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| 303 | my $gsdl3home_re = &util::filename_to_regex($gsdl3home);
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| 304 |
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| 305 | my $replacement_map = { qr/\@gsdl3home\@/ => $gsdl3home_re };
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| 306 |
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| 307 | $self->filtered_copy($solrxml_in,$solrxml,$replacement_map);
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| 308 | }
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| 309 |
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| 310 |
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| 311 | # Some of the Solr CoreAdmin API calls available.
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| 312 | # See http://wiki.apache.org/solr/CoreAdmin
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| 313 | sub admin_reload_core
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| 314 | {
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| 315 | my $self = shift @_;
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| 316 | my ($core) = @_;
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| 317 |
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| 318 | my $cgi_get_args = "action=RELOAD&core=$core";
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| 319 |
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| 320 | $self->_admin_service($cgi_get_args);
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| 321 |
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| 322 | }
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| 323 |
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| 324 | sub admin_rename_core
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| 325 | {
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| 326 | my $self = shift @_;
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| 327 | my ($oldcore, $newcore) = @_;
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| 328 |
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| 329 | my $cgi_get_args = "action=RENAME&core=$oldcore&other=$newcore";
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| 330 |
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| 331 | $self->_admin_service($cgi_get_args);
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| 332 |
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| 333 | }
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| 334 |
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| 335 | sub admin_swap_core
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| 336 | {
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| 337 | my $self = shift @_;
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| 338 | my ($oldcore, $newcore) = @_;
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| 339 |
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| 340 | my $cgi_get_args = "action=SWAP&core=$oldcore&other=$newcore";
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| 341 |
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| 342 | $self->_admin_service($cgi_get_args);
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| 343 |
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| 344 | }
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| 345 |
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| 346 | # The ALIAS action is not supported in our version of solr (despite it
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| 347 | # being marked as experimental in the documentation for Core Admin)
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| 348 | sub admin_alias_core
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| 349 | {
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| 350 | my $self = shift @_;
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| 351 | my ($oldcore, $newcore) = @_;
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| 352 |
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| 353 | my $cgi_get_args = "action=ALIAS&core=$oldcore&other=$newcore";
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| 354 |
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| 355 | $self->_admin_service($cgi_get_args);
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| 356 |
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| 357 | }
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| 358 |
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| 359 | sub admin_create_core
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| 360 | {
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| 361 | my $self = shift @_;
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| 362 | my ($core, $data_parent_dir) = @_; # data_parent_dir is optional, can be index_dir. Defaults to builddir if not provided
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| 363 |
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| 364 | my ($ds_idx) = ($core =~ m/^.*-(.*?)$/);
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| 365 |
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| 366 | my $cgi_get_args = "action=CREATE&name=$core";
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| 367 |
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| 368 | my $collect_home = $ENV{'GSDLCOLLECTDIR'};
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| 369 | my $etc_dirname = &util::filename_cat($collect_home,"etc");
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| 370 |
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| 371 | if(!defined $data_parent_dir) {
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| 372 | $data_parent_dir = $self->{'build_dir'};
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| 373 | }
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| 374 |
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| 375 | my $idx_dirname = &util::filename_cat($data_parent_dir,$ds_idx); # "dataDir"
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| 376 |
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| 377 | $cgi_get_args .= "&instanceDir=$etc_dirname";
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| 378 | $cgi_get_args .= "&dataDir=$idx_dirname";
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| 379 |
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| 380 | $self->_admin_service($cgi_get_args);
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| 381 |
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| 382 | }
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| 383 |
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| 384 | # removes (unloads) core from the ext/solr/sorl.xml config file
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| 385 | sub admin_unload_core
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| 386 | {
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| 387 | my $self = shift @_;
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| 388 | my ($core, $delete) = @_;
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| 389 |
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| 390 | my $cgi_get_args = "action=UNLOAD&core=$core";
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| 391 | # &deleteIndex=true available from Solr3.3, see https://wiki.apache.org/solr/CoreAdmin.
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| 392 | # Also available since later Solr versions: deleteDataDir and deleteInstanceDir
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| 393 | if(defined $delete && $delete == 1) {
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| 394 | $cgi_get_args = $cgi_get_args."&deleteIndex=true";
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| 395 | }
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| 396 |
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| 397 | $self->_admin_service($cgi_get_args);
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| 398 |
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| 399 | }
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| 400 |
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| 401 | sub start
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| 402 | {
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| 403 | my $self = shift @_;
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| 404 | my ($verbosity) = @_;
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| 405 |
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| 406 | $verbosity = 1 unless defined $verbosity;
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| 407 |
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| 408 | my $solr_live_home = &util::filename_cat($ENV{'GSDL3HOME'}, "ext", "solr");
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| 409 | $self->{'solr_live_home'} = $solr_live_home; # will be used later to generate solr.xml.in from solr.xml and vice-versa
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| 410 | my $server_port = $ENV{'SOLR_PORT'};
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| 411 | my $server_host = $ENV{'SOLR_HOST'};
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| 412 |
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| 413 | chdir($ENV{'GSDL3SRCHOME'});
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| 414 |
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| 415 | my $server_java_cmd = "ant start";
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| 416 |
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| 417 | my $server_status = "unknown";
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| 418 |
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| 419 | if ($self->server_running()) {
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| 420 | $server_status = "already-running";
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| 421 | print STDERR "@@@@ server already running\n\n";
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| 422 | }
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| 423 | elsif (open(STARTIN,"$server_java_cmd 2>&1 |")) {
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| 424 |
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| 425 | print STDERR "@@@@ need to start tomcat\n\n";
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| 426 | print STDERR "**** starting up tomcat server with cmd start =\n $server_java_cmd\n" if ($verbosity > 1);
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| 427 |
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| 428 | my $line;
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| 429 | while (defined($line=<STARTIN>)) {
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| 430 |
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[30534] | 431 | #if ($line =~ m/^(BUILD FAILED)/) {
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[29711] | 432 | print "Tomcat startup: $line";
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| 433 | #}
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[30534] | 434 | if ($line =~ m/^BUILD SUCCESSFUL/) {
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| 435 | last;
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| 436 | }
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[29711] | 437 | }
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[30534] | 438 |
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| 439 | close(STARTIN);
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| 440 |
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[29711] | 441 | if ($self->server_running()) {
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| 442 | $server_status = "explicitly-started";
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| 443 | #print STDERR "\n*** Tomcat server has started up now.\n\n";
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| 444 | } else {
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| 445 | $server_status = "failed-to-start"; # no need to set this, will be exiting below anyway
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| 446 |
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| 447 | print STDERR "Error: failed to start greenstone tomcat server\n";
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| 448 | print STDERR "$!\n";
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| 449 | print STDERR "Command attempted was:\n";
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| 450 | print STDERR " $server_java_cmd\n";
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| 451 | print STDERR "run from directory:\n";
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| 452 | print STDERR " $ENV{'GSDL3SRCHOME'}\n";
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| 453 | print STDERR "----\n";
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| 454 |
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| 455 | exit -1;
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| 456 | }
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| 457 | }
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| 458 | else {
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| 459 | print STDERR "@@@@ failed to start tomcat\n\n";
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| 460 | $server_status = "failed-to-start"; # no need to set this, will be exiting below anyway
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| 461 |
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| 462 | print STDERR "Error: unable to start greenstone tomcat server\n";
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| 463 | print STDERR "$!\n";
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| 464 | print STDERR "Command attempted was:\n";
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| 465 | print STDERR " $server_java_cmd\n";
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| 466 | print STDERR "run from directory:\n";
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| 467 | print STDERR " $ENV{'GSDL3SRCHOME'}\n";
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| 468 | print STDERR "----\n";
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| 469 |
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| 470 | exit -1;
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| 471 | }
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| 472 |
|
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| 473 | if ($server_status eq "explicitly-started") {
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| 474 | $self->{'server_explicitly_started'} = 1;
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| 475 | print "Tomcat server ready and listening for connections at ";
|
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| 476 | print " $server_host:$server_port\n";
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| 477 |
|
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[30534] | 478 | # now we know the server is ready to accept connections
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[29711] | 479 | }
|
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| 480 | elsif ($server_status eq "already-running") {
|
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| 481 | print STDERR "Using existing tomcat server detected at $server_host:$server_port\n";
|
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| 482 | $self->{'server_explicitly_started'} = 0;
|
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| 483 | }
|
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| 484 | elsif ($server_status eq "failed-to-start") {
|
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| 485 | print STDERR "Started Solr/Tomcat web server at $server_host:$server_port";
|
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| 486 | print STDERR ", but encountered an initialization error\n";
|
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| 487 | exit -1;
|
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| 488 | }
|
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| 489 |
|
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| 490 | }
|
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| 491 |
|
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| 492 | sub explicitly_started
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| 493 | {
|
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| 494 | my $self = shift @_;
|
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| 495 |
|
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| 496 | return $self->{'server_explicitly_started'};
|
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| 497 | }
|
---|
| 498 |
|
---|
| 499 | sub stop
|
---|
| 500 | {
|
---|
| 501 | my $self = shift @_;
|
---|
| 502 | my ($options) = @_;
|
---|
| 503 |
|
---|
| 504 | my $solr_home = $ENV{'GEXT_SOLR'};
|
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| 505 |
|
---|
| 506 | chdir($ENV{'GSDL3SRCHOME'});
|
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| 507 |
|
---|
| 508 | # defaults
|
---|
| 509 | my $do_wait = 1;
|
---|
| 510 | my $output_verbosity = 1;
|
---|
| 511 |
|
---|
| 512 | if (defined $options) {
|
---|
| 513 | if (defined $options->{'do_wait'}) {
|
---|
| 514 | $do_wait = $options->{'do_wait'};
|
---|
| 515 | }
|
---|
| 516 | if (defined $options->{'output_verbosity'}) {
|
---|
| 517 | $output_verbosity = $options->{'output_verbosity'};
|
---|
| 518 | }
|
---|
| 519 | }
|
---|
| 520 |
|
---|
| 521 | my $server_java_cmd = "ant stop";
|
---|
| 522 |
|
---|
| 523 | print STDERR "**** java server stop cmd:\n $server_java_cmd\n" if ($output_verbosity>1);
|
---|
| 524 |
|
---|
| 525 | if (open(STOPIN,"$server_java_cmd 2>&1 |")) {
|
---|
| 526 |
|
---|
| 527 | my $line;
|
---|
| 528 | while (defined($line=<STOPIN>)) {
|
---|
| 529 | print "@@@@ Tomcat shutdown: $line"; #if ($output_verbosity>1);
|
---|
| 530 | }
|
---|
| 531 | close(STOPIN);
|
---|
| 532 |
|
---|
| 533 | if ($do_wait) {
|
---|
| 534 | wait(); # let the child process finish
|
---|
| 535 | }
|
---|
| 536 |
|
---|
| 537 | if ($output_verbosity>0) {
|
---|
| 538 | print "@@@@@ Tomcat server shutdown\n";
|
---|
| 539 | }
|
---|
| 540 | }
|
---|
| 541 | else {
|
---|
| 542 | print STDERR "Error: failed to stop tomcat-server\n";
|
---|
| 543 | print STDERR "$!\n";
|
---|
| 544 | print STDERR "Command attempted was:\n";
|
---|
| 545 | print STDERR " $server_java_cmd\n";
|
---|
| 546 | print STDERR "run from directory:\n";
|
---|
| 547 | print STDERR " $solr_home\n";
|
---|
| 548 | print STDERR "----\n";
|
---|
| 549 |
|
---|
| 550 | exit -2;
|
---|
| 551 | }
|
---|
| 552 | }
|
---|
| 553 |
|
---|
| 554 |
|
---|
| 555 |
|
---|
| 556 | 1;
|
---|