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 |
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31 | use solrutil;
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32 |
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33 | sub new {
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34 | my $class = shift(@_);
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35 |
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36 | my $self = { 'jetty_stop_key' => "greenstone-solr" };
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37 |
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38 | my $search_path = &solrutil::get_search_path();
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39 |
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40 | my $server_jar = &util::filename_cat("lib","java","solr-jetty-server.jar");
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41 | my $full_server_jar = solrutil::locate_file($search_path,$server_jar);
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42 | $self->{'full_server_jar'} = $full_server_jar;
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43 |
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44 | $self->{'jetty_explicitly_started'} = undef;
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45 |
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46 | return bless $self, $class;
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47 | }
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48 |
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49 | sub start
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50 | {
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51 | my $self = shift @_;
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52 |
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53 | my $solr_home = $ENV{'GEXT_SOLR'};
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54 | my $jetty_stop_port = $ENV{'JETTY_STOP_PORT'};
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55 | my $jetty_server_port = $ENV{'SOLR_JETTY_PORT'};
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56 |
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57 | chdir($solr_home);
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58 |
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59 | my $solr_etc = &util::filename_cat($solr_home,"etc");
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60 |
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61 | my $server_props = "-DSTOP.PORT=$jetty_stop_port";
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62 | $server_props .= " -DSTOP.KEY=".$self->{'jetty_stop_key'};
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63 | $server_props .= " -Dsolr.solr.home=$solr_etc";
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64 |
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65 | my $full_server_jar = $self->{'full_server_jar'};
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66 |
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67 | my $server_java_cmd = "java $server_props -jar \"$full_server_jar\"";
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68 |
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69 | ## print STDERR "**** server cmd = $server_java_cmd\n";
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70 |
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71 | my $pid = open(STARTIN,"-|");
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72 |
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73 | if ($pid==0) {
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74 | # child process that will start up jetty and monitor output
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75 |
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76 | setpgrp(0,0);
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77 |
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78 | exec "$server_java_cmd 2>&1" || die "Failed to execute $server_java_cmd\n$!\n";
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79 | # everything stops here
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80 | }
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81 |
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82 | my $server_status = "unknown";
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83 |
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84 | my $line;
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85 | while (defined($line=<STARTIN>)) {
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86 | # Scan through output until you see a line like:
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87 | # 2011-08-22 .. :INFO::Started [email protected]:8983
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88 | # which signifies that the server has started up and is
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89 | # "ready and listening"
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90 |
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91 | ## print STDERR "**** $line";
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92 |
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93 | # skip annoying "not listening" message
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94 | next if ($line =~ m/WARN:\s*Not listening on monitor port/);
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95 |
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96 | if (($line =~ m/^(WARN|ERROR|SEVERE):/)
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97 | || ($line =~ m/^[0-9 :-]*(WARN|ERROR|SEVERE)::/)) {
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98 | print "Jetty startup: $line";
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99 | }
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100 |
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101 |
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102 | if ($line =~ m/WARN::failed SocketConnector/) {
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103 | if ($line =~ m/Address already in use/) {
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104 | $server_status = "already-running";
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105 | }
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106 | else {
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107 | $server_status = "failed-to-start";
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108 | }
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109 | last;
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110 | }
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111 |
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112 | if ($line =~ m/INFO::Started SocketConnector/) {
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113 | $server_status = "explicitly-started";
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114 | last;
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115 | }
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116 | }
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117 |
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118 | if ($server_status eq "explicitly-started") {
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119 | $self->{'jetty_explicitly_started'} = 1;
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120 | print "Jetty server ready and listening for connections on port $jetty_server_port\n";
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121 |
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122 | # now we know the server is ready to accept connections, fork a
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123 | # child process that continues to listen to the output and
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124 | # prints out any lines that are not INFO lines
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125 |
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126 | if (fork()==0) {
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127 | # child process
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128 |
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129 | my $line;
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130 | while (defined ($line = <STARTIN>)) {
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131 |
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132 | # if (($line =~ m/^(WARN|ERROR|SEVERE):/)
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133 | # || ($line =~ m/^[0-9 :-]*(WARN|ERROR|SEVERE)::/)) {
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134 | # print "Jetty $line";
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135 | # }
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136 |
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137 |
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138 | # skip info lines
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139 | next if ($line =~ m/^INFO:/);
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140 | next if ($line =~ m/^[0-9 :-]*INFO::/);
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141 | next if ($line =~ m/^\d{2}\/\d{2}\/\d{4}\s+/);
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142 | next if ($line =~ m/^\d{4}-\d{2}-\d{2}\s+/);
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143 |
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144 | ## next if ($line =~ m/^\s*\w+{.*}/);
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145 |
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146 | # if here, then some non-trival message has been logged
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147 | print "Jetty/Solr processing: $line";
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148 | }
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149 | close(STARTIN);
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150 |
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151 | # And now stop nicely
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152 | exit 0;
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153 | }
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154 | # otherwise let the parent continue on
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155 | }
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156 | elsif ($server_status eq "already-running") {
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157 | print "Using existing server detected on port $jetty_server_port\n";
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158 | $self->{'jetty_explicitly_started'} = 0;
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159 |
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160 | # Kill of the child process
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161 |
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162 | my $ks = kill(9,-$pid);
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163 |
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164 | # Consume any remaining (buffered) output (not interested in values)
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165 | while (defined ($line = <STARTIN>)) {
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166 | # skip info lines
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167 | }
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168 | close(STARTIN);
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169 | }
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170 | else {
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171 | print STDERR "Failed to start Solr/Jetty web server on $jetty_server_port\n";
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172 | exit -1;
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173 | }
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174 |
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175 |
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176 | # else {
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177 | # print STDERR "Error: failed to start solr-jetty-server\n";
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178 | # print STDERR "!$\n\n";
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179 | # print STDERR "Command attempted was:\n";
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180 | # print STDERR " $server_java_cmd\n";
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181 | # print STDERR "run from directory:\n";
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182 | # print STDERR " $solr_home\n";
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183 | # print STDERR "----\n";
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184 |
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185 | # exit -1;
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186 | # }
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187 |
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188 | # # If get to here then server started (and ready and listening)
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189 | # # *and* we are the parent process of the fork()
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190 |
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191 | }
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192 |
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193 |
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194 | sub explicitly_started
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195 | {
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196 | my $self = shift @_;
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197 |
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198 | return $self->{'jetty_explicitly_started'};
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199 | }
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200 |
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201 |
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202 | sub stop
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203 | {
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204 | my $self = shift @_;
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205 | my ($options) = @_;
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206 |
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207 | my $solr_home = $ENV{'GEXT_SOLR'};
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208 |
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209 | chdir($solr_home);
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210 |
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211 | # defaults
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212 | my $do_wait = 1;
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213 | my $output_verbosity = 1;
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214 |
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215 | if (defined $options) {
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216 | if (defined $options->{'do_wait'}) {
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217 | $do_wait = $options->{'do_wait'};
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218 | }
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219 | if (defined $options->{'output_verbosity'}) {
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220 | $output_verbosity = $options->{'output_verbosity'};
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221 | }
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222 | }
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223 |
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224 | my $full_server_jar = $self->{'full_server_jar'};
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225 | my $jetty_stop_port = $ENV{'JETTY_STOP_PORT'};
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226 |
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227 | my $server_props = "-DSTOP.PORT=$jetty_stop_port";
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228 | $server_props .= " -DSTOP.KEY=".$self->{'jetty_stop_key'};
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229 | my $server_java_cmd = "java $server_props -jar \"$full_server_jar\" --stop";
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230 | if (open(STOPIN,"$server_java_cmd 2>&1 |")) {
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231 |
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232 | my $line;
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233 | while (defined($line=<STOPIN>)) {
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234 | print "Jetty shutdown: $line" if ($output_verbosity>1);
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235 | }
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236 | close(STOPIN);
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237 |
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238 | if ($do_wait) {
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239 | wait(); # let the child process finish
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240 | }
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241 |
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242 | if ($output_verbosity>0) {
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243 | print "Jetty server shutdown\n";
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244 | }
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245 | }
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246 | else {
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247 | print STDERR "Error: failed to stop solr-jetty-server\n";
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248 | print STDERR "!$\n";
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249 | print STDERR "Command attempted was:\n";
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250 | print STDERR " $server_java_cmd\n";
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251 | print STDERR "run from directory:\n";
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252 | print STDERR " $solr_home\n";
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253 | print STDERR "----\n";
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254 |
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255 | exit -2;
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256 | }
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257 | }
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258 |
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259 |
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260 |
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261 | 1;
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