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