1 | ###########################################################################
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2 | #
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3 | # solrserver.pm -- class for starting and stopping the Solr/jetty server
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4 | # A component of the Greenstone digital library software
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5 | # from the New Zealand Digital Library Project at the
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6 | # University of Waikato, New Zealand.
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7 | #
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8 | # Copyright (C) 1999 New Zealand Digital Library Project
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9 | #
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10 | # This program is free software; you can redistribute it and/or modify
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11 | # it under the terms of the GNU General Public License as published by
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12 | # the Free Software Foundation; either version 2 of the License, or
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13 | # (at your option) any later version.
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14 | #
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15 | # This program is distributed in the hope that it will be useful,
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16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | # GNU General Public License for more details.
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19 | #
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20 | # You should have received a copy of the GNU General Public License
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21 | # along with this program; if not, write to the Free Software
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22 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | #
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24 | ###########################################################################
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25 |
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26 |
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27 | package solrserver;
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28 |
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29 | use strict;
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30 | #no strict 'refs';
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31 |
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32 | use solrutil;
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33 |
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34 | sub new {
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35 | my $class = shift(@_);
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36 | my ($build_dir) = @_;
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37 |
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38 | my $self = { 'jetty_stop_key' => "greenstone-solr" };
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39 |
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40 | $self->{'build_dir'} = $build_dir;
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41 |
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42 | my $search_path = &solrutil::get_search_path();
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43 |
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44 | my $server_jar = &util::filename_cat("lib","java","solr-jetty-server.jar");
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45 | my $full_server_jar = solrutil::locate_file($search_path,$server_jar);
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46 | $self->{'full_server_jar'} = $full_server_jar;
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47 |
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48 | $self->{'jetty_explicitly_started'} = undef;
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49 |
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50 | my $jetty_server_port = $ENV{'SOLR_JETTY_PORT'};
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51 | my $base_url = "http://localhost:$jetty_server_port/solr/";
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52 | my $admin_url = "http://localhost:$jetty_server_port/solr/admin/cores";
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53 |
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54 | $self->{'base-url'} = $base_url;
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55 | $self->{'admin-url'} = $admin_url;
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56 |
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57 | return bless $self, $class;
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58 | }
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59 |
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60 | sub set_jetty_stop_key {
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61 | my $self = shift (@_);
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62 | my ($stop_key) = @_;
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63 |
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64 | $self->{'jetty_stop_key'} = $stop_key if defined $stop_key;
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65 | }
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66 |
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67 | sub _wget_service
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68 | {
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69 | my $self = shift (@_);
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70 | my ($output_format,$url,$cgi_get_args) = @_;
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71 |
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72 | my $full_url = $url;
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73 |
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74 | $url .= "?$cgi_get_args" if (defined $cgi_get_args);
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75 |
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76 | ## print STDERR "\n\n**** _wget_service SOLR WEB URL: $url\n\n";
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77 |
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78 | # 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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79 | &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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80 |
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81 | my $cmd = "wget -O - \"$url\" 2>&1";
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82 |
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83 | my $preamble_output = "";
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84 | my $xml_output = "";
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85 | my $error_output = undef;
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86 |
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87 | my $in_preamble = ($output_format eq "xml") ? 1 : 0;
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88 |
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89 | ## print STDERR "**** wgetcmd = \n $cmd\n";
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90 |
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91 | if (open(WIN,"$cmd |")) {
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92 |
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93 | my $line;
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94 | while (defined ($line=<WIN>)) {
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95 |
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96 | if ($line =~ m/ERROR \d+:/) {
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97 | chomp $line;
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98 | $error_output = $line;
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99 | last;
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100 | }
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101 | elsif ($line =~ m/failed: Connection refused/) {
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102 | chomp $line;
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103 | $error_output = $line;
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104 | last;
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105 | }
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106 | elsif ($in_preamble) {
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107 | if ($line =~ m/<.*>/) {
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108 | $in_preamble = 0;
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109 | }
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110 | else {
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111 | $preamble_output .= $line;
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112 | }
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113 | }
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114 |
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115 | if (! $in_preamble) {
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116 | $xml_output .= $line;
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117 | }
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118 | }
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119 | close(WIN);
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120 |
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121 | }
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122 | else {
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123 | $error_output = "Error: failed to run $cmd\n";
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124 | $error_output .= " $!\n";
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125 | }
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126 |
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127 | if(defined $error_output) {
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128 | print STDERR "\n\n**** WGET_SERVICE got an error: $error_output\n\n";
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129 | }
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130 |
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131 | my $output = { 'url' => $full_url,
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132 | 'preamble' => $preamble_output,
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133 | 'output' => $xml_output,
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134 | 'error' => $error_output };
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135 |
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136 | return $output;
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137 | }
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138 |
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139 |
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140 | sub _base_service
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141 | {
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142 | my $self = shift (@_);
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143 | my ($cgi_get_args) = @_;
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144 |
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145 | my $base_url = $self->{'base-url'};
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146 |
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147 | return $self->_wget_service("html",$base_url,$cgi_get_args);
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148 | }
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149 |
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150 | sub _admin_service
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151 | {
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152 | my $self = shift (@_);
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153 | my ($cgi_get_args) = @_;
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154 |
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155 | my $admin_url = $self->{'admin-url'};
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156 |
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157 | return $self->_wget_service("xml",$admin_url,$cgi_get_args);
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158 | }
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159 |
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160 |
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161 | sub server_running
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162 | {
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163 | my $self = shift @_;
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164 |
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165 | my $output = $self->_base_service();
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166 |
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167 | my $have_error = defined $output->{'error'};
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168 |
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169 | my $running = ($have_error) ? 0 : 1;
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170 |
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171 | return $running;
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172 | }
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173 |
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174 |
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175 | sub admin_ping_core
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176 | {
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177 | my $self = shift @_;
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178 | my ($core) = @_;
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179 |
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180 | my $cgi_get_args = "action=STATUS&core=$core";
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181 |
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182 | my $ping_status = 1;
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183 |
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184 | my $output = $self->_admin_service($cgi_get_args);
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185 |
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186 | if (defined $output->{'error'}) {
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187 | # severe error, such as failing to connect to the server
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188 | $ping_status = 0;
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189 |
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190 | my $url = $output->{'url'};
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191 | my $preamble = $output->{'preamble'};
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192 | my $error = $output->{'error'};
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193 |
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194 | print STDERR "----\n";
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195 | print STDERR "Error: Failed to get XML response from:\n";
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196 | print STDERR " $url\n";
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197 | print STDERR "Output was:\n";
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198 | print STDERR $preamble if ($preamble ne "");
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199 | print STDERR "$error\n";
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200 | print STDERR "----\n";
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201 | }
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202 | else {
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203 |
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204 | # If the collection doesn't exist yet, then there will be
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205 | # an empty element of the form:
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206 | # <lst name="collect-doc"/>
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207 | # where 'collect' is the actual name of the collection,
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208 | # such as demo
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209 |
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210 | my $xml_output = $output->{'output'};
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211 |
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212 | my $empty_element="<lst\\s+name=\"$core\"\\s*\\/>";
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213 |
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214 | $ping_status = !($xml_output =~ m/$empty_element/s);
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215 | }
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216 |
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217 | return $ping_status;
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218 | }
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219 |
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220 | sub filtered_copy
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221 | {
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222 | my $self = shift @_;
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223 |
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224 | my $src_file = shift @_;
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225 | my $dst_file = shift @_;
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226 | my $re_substitutions = shift @_;
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227 |
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228 | # $re_substitutions is a hashmap of the form: [re_key] => subst_str
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229 |
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230 | my $content = "";
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231 |
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232 | if (open(FIN,'<:utf8',$src_file)) {
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233 |
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234 | my $line;
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235 | while (defined($line=<FIN>)) {
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236 | $content .= $line;
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237 | }
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238 | }
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239 |
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240 | close(FIN);
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241 |
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242 | # perform RE string substitutions
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243 | foreach my $re_key (keys %$re_substitutions) {
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244 |
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245 | my $subst_str = $re_substitutions->{$re_key};
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246 |
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247 | # Perform substitution of the form:
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248 | # $content =~ s/$re_key/$subst_str/g;
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249 | # but allow allow separator char (default '/')
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250 | # and flags (default 'g') to be parameterized
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251 |
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252 | $content =~ s/$re_key/$subst_str/g;
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253 | }
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254 |
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255 | if (open(FOUT, '>:utf8', $dst_file)) {
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256 | print FOUT $content;
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257 | close(FOUT);
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258 | }
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259 | else {
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260 | print STDERR "Error: Failed to open file '$dst_file' for writing.\n$!\n";
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261 | }
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262 | }
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263 |
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264 | sub solr_xml_to_solr_xml_in
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265 | {
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266 | my $self = shift @_;
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267 | my ($solr_xml_dir) = @_;
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268 |
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269 | my $gsdl3home = $ENV{'GSDL3HOME'};
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270 |
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271 | if (!defined $solr_xml_dir || !-d $solr_xml_dir) {
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272 | # if not passed in, use stored solr_live_home
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273 | $solr_xml_dir = $self->{'solr_live_home'};
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274 | }
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275 | my $solrxml_in = &util::filename_cat($solr_xml_dir, "solr.xml.in");
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276 | my $solrxml = &util::filename_cat($solr_xml_dir, "solr.xml");
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277 |
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278 | my $gsdl3home_re = &util::filename_to_regex($gsdl3home);
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279 |
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280 | my $replacement_map = { qr/$gsdl3home_re/ => "\@gsdl3home\@" };
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281 |
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282 | $self->filtered_copy($solrxml,$solrxml_in,$replacement_map);
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283 | }
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284 |
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285 |
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286 | sub solr_xml_in_to_solr_xml
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287 | {
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288 | my $self = shift @_;
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289 | my ($solr_xml_dir) = @_;
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290 |
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291 | my $gsdl3home = $ENV{'GSDL3HOME'};
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292 | if (!defined $solr_xml_dir || !-d $solr_xml_dir) {
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293 | # if not passed in, use stored solr home
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294 | $solr_xml_dir = $self->{'solr_live_home'};
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295 | }
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296 | my $solrxml_in = &util::filename_cat($solr_xml_dir, "solr.xml.in");
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297 | my $solrxml = &util::filename_cat($solr_xml_dir, "solr.xml");
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298 |
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299 | my $gsdl3home_re = &util::filename_to_regex($gsdl3home);
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300 |
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301 | my $replacement_map = { qr/\@gsdl3home\@/ => $gsdl3home_re };
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302 |
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303 | $self->filtered_copy($solrxml_in,$solrxml,$replacement_map);
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304 | }
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305 |
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306 |
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307 | # Some of the Solr CoreAdmin API calls available.
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308 | # See http://wiki.apache.org/solr/CoreAdmin
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309 | sub admin_reload_core
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310 | {
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311 | my $self = shift @_;
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312 | my ($core) = @_;
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313 |
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314 | my $cgi_get_args = "action=RELOAD&core=$core";
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315 |
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316 | $self->_admin_service($cgi_get_args);
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317 |
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318 | }
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319 |
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320 | sub admin_rename_core
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321 | {
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322 | my $self = shift @_;
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323 | my ($oldcore, $newcore) = @_;
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324 |
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325 | my $cgi_get_args = "action=RENAME&core=$oldcore&other=$newcore";
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326 |
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327 | $self->_admin_service($cgi_get_args);
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328 |
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329 | }
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330 |
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331 | sub admin_swap_core
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332 | {
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333 | my $self = shift @_;
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334 | my ($oldcore, $newcore) = @_;
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335 |
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336 | my $cgi_get_args = "action=SWAP&core=$oldcore&other=$newcore";
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337 |
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338 | $self->_admin_service($cgi_get_args);
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339 |
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340 | }
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341 |
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342 | # The ALIAS action is not supported in our version of solr (despite it
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343 | # being marked as experimental in the documentation for Core Admin)
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344 | sub admin_alias_core
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345 | {
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346 | my $self = shift @_;
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347 | my ($oldcore, $newcore) = @_;
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348 |
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349 | my $cgi_get_args = "action=ALIAS&core=$oldcore&other=$newcore";
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350 |
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351 | $self->_admin_service($cgi_get_args);
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352 |
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353 | }
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354 |
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355 | sub admin_create_core
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356 | {
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357 | my $self = shift @_;
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358 | my ($core, $data_parent_dir) = @_; # data_parent_dir is optional, can be index_dir. Defaults to builddir if not provided
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359 |
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360 | my ($ds_idx) = ($core =~ m/^.*-(.*?)$/);
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361 |
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362 | my $cgi_get_args = "action=CREATE&name=$core";
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363 |
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364 | my $collect_home = $ENV{'GSDLCOLLECTDIR'};
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365 | my $etc_dirname = &util::filename_cat($collect_home,"etc");
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366 |
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367 | if(!defined $data_parent_dir) {
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368 | $data_parent_dir = $self->{'build_dir'};
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369 | }
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370 |
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371 | my $idx_dirname = &util::filename_cat($data_parent_dir,$ds_idx); # "dataDir"
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372 |
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373 | $cgi_get_args .= "&instanceDir=$etc_dirname";
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374 | $cgi_get_args .= "&dataDir=$idx_dirname";
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375 |
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376 | $self->_admin_service($cgi_get_args);
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377 |
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378 | }
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379 |
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380 | # removes (unloads) core from the ext/solr/sorl.xml config file
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381 | sub admin_unload_core
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382 | {
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383 | my $self = shift @_;
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384 | my ($core, $delete) = @_;
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385 |
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386 | my $cgi_get_args = "action=UNLOAD&core=$core"; # &deleteIndex=true from Solr3.3
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387 | if(defined $delete && $delete == 1) {
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388 | $cgi_get_args = $cgi_get_args."&deleteIndex=true";
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389 | }
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390 |
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391 | $self->_admin_service($cgi_get_args);
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392 |
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393 | }
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394 |
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395 | sub start
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396 | {
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397 | my $self = shift @_;
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398 | my ($verbosity) = @_;
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399 |
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400 | $verbosity = 1 unless defined $verbosity;
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401 |
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402 | my $solr_home = $ENV{'GEXT_SOLR'};
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403 | my $solr_live_home = &util::filename_cat($ENV{'GSDL3HOME'}, "ext", "solr");
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404 | my $jetty_stop_port = $ENV{'JETTY_STOP_PORT'};
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405 | my $jetty_server_port = $ENV{'SOLR_JETTY_PORT'};
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406 |
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407 | chdir($solr_home);
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408 | #$self->{'solr_home'} = $solr_home;
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409 | $self->{'solr_live_home'} = $solr_live_home;
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410 | ## my $solr_etc = &util::filename_cat($solr_home,"etc");
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411 |
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412 | my $server_props = "-DSTOP.PORT=$jetty_stop_port";
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413 | $server_props .= " -DSTOP.KEY=".$self->{'jetty_stop_key'};
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414 | #$server_props .= " -Dsolr.solr.home=$solr_home";
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415 | $server_props .= " -Dsolr.solr.home=$solr_live_home";
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416 | my $full_server_jar = $self->{'full_server_jar'};
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417 |
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418 | # https://wiki.apache.org/solr/SolrLogging
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419 | my $solr_slf4j = &util::filename_cat($solr_home, "lib", "ext", "*");
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420 | my $solr_lib_java = &util::filename_cat($solr_home, "lib", "java", "*");
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421 | my $solr_jar_dep = &util::pathname_cat($solr_lib_java, $solr_slf4j);
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422 |
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423 | my $solr_log4j = &util::filename_cat($solr_home, "conf", "log4j.properties");
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424 | if (defined $ENV{'GSDLOS'} && (($ENV{'GSDLOS'} =~ m/windows/) && ($^O ne "cygwin"))) {
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425 | $solr_log4j =~ s@\\@\/@g;
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426 | $solr_log4j = "/$solr_log4j"; # Three slashes on windows: file///c:/path/to/log4j.properties
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427 | }
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428 |
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429 | #my $server_java_cmd = "java -Dlog4j.configuration=file://$solr_log4j -classpath \"$solr_home/lib/java/*:$solr_slf4j/*\" $server_props -jar \"$full_server_jar\"";
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430 | my $server_java_cmd = "java -Dlog4j.configuration=file://$solr_log4j -classpath \"$solr_jar_dep\" $server_props -jar \"$full_server_jar\"";
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431 | my $server_status = "unknown";
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432 |
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433 | if ($self->server_running()) {
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434 | $server_status = "already-running";
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435 | }
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436 | elsif (open(STARTIN,"$server_java_cmd 2>&1 |")) {
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437 |
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438 | print STDERR "**** starting up solr jetty server with cmd start =\n $server_java_cmd\n" if ($verbosity > 1);
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439 |
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440 | my $line;
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441 | while (defined($line=<STARTIN>)) {
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442 | # Scan through output until you see a line like:
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443 | # 2011-08-22 .. :INFO::Started [email protected]:8983
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444 | # which signifies that the server has started up and is
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445 | # "ready and listening"
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446 |
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447 | if (($line =~ m/^(WARN|ERROR|SEVERE):/)
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448 | || ($line =~ m/^[0-9 :-]*(WARN|ERROR|SEVERE)::/)) {
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449 | print "Jetty startup: $line";
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450 | }
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451 |
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452 | if ($line =~ m/WARN.*failed SocketConnector/) {
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453 | if ($line =~ m/Address already in use/) {
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454 | $server_status = "already-running";
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455 | }
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456 | else {
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457 | $server_status = "failed-to-start";
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458 | }
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459 | last;
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460 | }
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461 |
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462 | if ($line =~ m/INFO.*Started SocketConnector/) {
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463 | $server_status = "explicitly-started";
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464 | last;
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465 | }
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466 | }
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467 | }
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468 | else {
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469 | print STDERR "Error: failed to start solr-jetty-server\n";
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470 | print STDERR "$!\n";
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471 | print STDERR "Command attempted was:\n";
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472 | print STDERR " $server_java_cmd\n";
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473 | print STDERR "run from directory:\n";
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474 | print STDERR " $solr_home\n";
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475 | print STDERR "----\n";
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476 |
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477 | exit -1;
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478 | }
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479 |
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480 | if ($server_status eq "explicitly-started") {
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481 | $self->{'jetty_explicitly_started'} = 1;
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482 | print "Jetty server ready and listening for connections on port";
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483 | print " $jetty_server_port\n";
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484 |
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485 | # now we know the server is ready to accept connections, fork a
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486 | # child process that continues to listen to the output and
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487 | # prints out any lines that are not INFO lines
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488 |
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489 | if (fork()==0) {
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490 | # child process
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491 |
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492 | my $line;
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493 | while (defined ($line = <STARTIN>)) {
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494 |
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495 | # if (($line =~ m/^(WARN|ERROR|SEVERE):/)
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496 | # || ($line =~ m/^[0-9 :-]*(WARN|ERROR|SEVERE)::/)) {
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497 | # print "Jetty $line";
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498 | # }
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499 |
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500 | # skip info lines
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501 | next if ($line =~ m/^INFO:/);
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502 | next if ($line =~ m/^[0-9 :-]*INFO::/);
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503 | next if ($line =~ m/^\d{2}\/\d{2}\/\d{4}\s+/);
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504 | next if ($line =~ m/^\d{4}-\d{2}-\d{2}\s+/);
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505 |
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506 | ## next if ($line =~ m/^\s*\w+{.*}/);
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507 |
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508 | # if here, then some non-trival message has been logged
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509 | print "Jetty/Solr processing: $line";
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510 | }
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511 | close(STARTIN);
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512 |
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513 | # And now stop nicely
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514 | exit 0;
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515 | }
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516 | # otherwise let the parent continue on
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517 | }
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518 | elsif ($server_status eq "already-running") {
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519 | print STDERR "Using existing server detected on port $jetty_server_port\n";
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520 | $self->{'jetty_explicitly_started'} = 0;
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521 | }
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522 | elsif ($server_status eq "failed-to-start") {
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523 | print STDERR "Started Solr/Jetty web server on port $jetty_server_port";
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524 | print STDERR ", but encountered an initialization error\n";
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525 | exit -1;
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526 | }
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527 |
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528 | }
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529 |
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530 | sub explicitly_started
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531 | {
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532 | my $self = shift @_;
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533 |
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534 | return $self->{'jetty_explicitly_started'};
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535 | }
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536 |
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537 | sub stop
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538 | {
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539 | my $self = shift @_;
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540 | my ($options) = @_;
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541 |
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542 | my $solr_home = $ENV{'GEXT_SOLR'};
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543 |
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544 | chdir($solr_home);
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545 |
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546 | # defaults
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547 | my $do_wait = 1;
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548 | my $output_verbosity = 1;
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549 |
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550 | if (defined $options) {
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551 | if (defined $options->{'do_wait'}) {
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552 | $do_wait = $options->{'do_wait'};
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553 | }
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554 | if (defined $options->{'output_verbosity'}) {
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555 | $output_verbosity = $options->{'output_verbosity'};
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556 | }
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557 | }
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558 |
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559 | my $full_server_jar = $self->{'full_server_jar'};
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560 | my $jetty_stop_port = $ENV{'JETTY_STOP_PORT'};
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561 |
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562 | my $server_props = "-DSTOP.PORT=$jetty_stop_port";
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563 | $server_props .= " -DSTOP.KEY=".$self->{'jetty_stop_key'};
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564 | my $server_java_cmd = "java $server_props -jar \"$full_server_jar\" --stop";
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565 |
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566 | print STDERR "**** java server stop cmd:\n $server_java_cmd\n" if ($output_verbosity>1);
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567 |
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568 | if (open(STOPIN,"$server_java_cmd 2>&1 |")) {
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569 |
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570 | my $line;
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571 | while (defined($line=<STOPIN>)) {
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572 | print "Jetty shutdown: $line" if ($output_verbosity>1);
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573 | }
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574 | close(STOPIN);
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575 |
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576 | if ($do_wait) {
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577 | wait(); # let the child process finish
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578 | }
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579 |
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580 | if ($output_verbosity>0) {
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581 | print "Jetty server shutdown\n";
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582 | }
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583 | }
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584 | else {
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585 | print STDERR "Error: failed to stop solr-jetty-server\n";
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586 | print STDERR "$!\n";
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587 | print STDERR "Command attempted was:\n";
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588 | print STDERR " $server_java_cmd\n";
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589 | print STDERR "run from directory:\n";
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590 | print STDERR " $solr_home\n";
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591 | print STDERR "----\n";
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592 |
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593 | exit -2;
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594 | }
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595 | }
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596 |
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597 |
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598 |
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599 | 1;
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