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package perfSONAR_PS::Client::LS::Remote; |
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=head1 NAME |
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perfSONAR_PS::Client::LS::Remote - A module that provides a client API for an LS |
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=head1 DESCRIPTION |
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This module aims to offer simple methods for dealing with requests for information, and the |
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related tasks of interacting with backend storage. |
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=head1 SYNOPSIS |
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use perfSONAR_PS::Client::LS::Remote; |
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my %conf = (); |
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$conf{"SERVICE_ACCESSPOINT"} = "http://someorganization.org:8080/perfSONAR_PS/services/service"; |
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$conf{"SERVICE_NAME"} = "Some Organization's Service MA" |
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$conf{"SERVICE_TYPE"} = "MA" |
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$conf{"SERVICE_DESCRIPTION"} = "Service MA" |
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my $ls = "http://someorganization.org:8080/perfSONAR_PS/services/LS"; |
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my $ls_client = perfSONAR_PS::Client::LS::Remote->new($ls, \%conf, \%ns); |
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# or |
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# $ls_client = perfSONAR_PS::Client::LS::Remote->new; |
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# $ls_client->setURI($ls); |
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# $ls_client->setConf(\%conf); |
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# $ls_client->setNamespaces(\%ns); |
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$ls_client->registerStatic(\@data); |
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$ls_client->sendKeepalive($conf{"SERVICE_ACCESSPOINT"}); |
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$ls_client->sendDeregister($conf{"SERVICE_ACCESSPOINT"}); |
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my $ls2 = "http://otherorganization.org:8080/perfSONAR_PS/services/LS"; |
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my $ls_client2 = perfSONAR_PS::Client::LS::Remote->new($ls2); |
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my %queries = (); |
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$queries{"req1"} = ""; |
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$queries{"req1"} .= "declare namespace nmwg=\"http://ggf.org/ns/nmwg/base/2.0/\";\n"; |
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$queries{"req1"} .= "for \$data in /nmwg:store/nmwg:data\n"; |
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$queries{"req1"} .= " let \$metadata_id := \$data/\@metadataIdRef\n"; |
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$queries{"req1"} .= " where \$data//*:link[\@id=\"link1\"] and \$data//nmwg:eventType[text()=\"http://ggf.org/ns/nmwg/characteristic/link/status/20070809\"]\n"; |
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$queries{"req1"} .= " return /nmwg:store/nmwg:metadata[\@id=\$metadata_id]\n"; |
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$queries{"req2"} = ""; |
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$queries{"req2"} .= "declare namespace nmwg=\"http://ggf.org/ns/nmwg/base/2.0/\";\n"; |
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$queries{"req2"} .= "for \$data in /nmwg:store/nmwg:data\n"; |
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$queries{"req2"} .= " let \$metadata_id := \$data/\@metadataIdRef\n"; |
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$queries{"req2"} .= " where \$data//*:link[\@id=\"link2\"] and \$data//nmwg:eventType[text()=\"http://ggf.org/ns/nmwg/characteristic/link/status/20070809\"]\n"; |
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$queries{"req2"} .= " return /nmwg:store/nmwg:metadata[\@id=\$metadata_id]\n"; |
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my ($status, $res) = $ls_client2->query(\%queries); |
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if ($status != 0 or not defined $res{"req1"} or not defined $res{"req2"}) { |
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print "Error: querying $ls2 failed\n"; |
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exit(-1); |
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} |
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my ($query_status, $query_res); |
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($query_status, $query_res) = $res{"req1"}; |
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if ($query_status != 0) { |
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print "Couldn't get information on query req1: ".$query_res."\n"; |
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exit(-1); |
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} else { |
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print "Results for res1: ".$query_res->toString()."\n"; |
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} |
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($query_status, $query_res) = $res{"req2"}; |
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if ($query_status != 0) { |
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print "Couldn't get information on query req2: ".$query_res."\n"; |
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exit(-1); |
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} else { |
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print "Results for res1: ".$query_res->toString()."\n"; |
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} |
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=cut |
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1
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use fields 'URI', 'CONF', 'CHUNK', 'ALIVE', 'FIRST'; |
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use strict; |
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use warnings; |
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use Log::Log4perl qw(get_logger); |
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58049
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use perfSONAR_PS::Common; |
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use perfSONAR_PS::Transport; |
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use perfSONAR_PS::Messages; |
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use perfSONAR_PS::Client::Echo; |
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our $VERSION = 0.09; |
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=head1 API |
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The offered API is simple, but offers the key functions we need in a measurement archive. |
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=head2 new ($package, $uri, \%conf) |
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The parameters are the URI of the Lookup Service, a %conf describing the service for registration purposes. |
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The %conf can have 4 keys in it: |
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SERVICE_NAME - The name of the service registering data |
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SERVICE_ACCESSPOINT - The URL for the service registering data |
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SERVICE_TYPE - The type (MA, LS, etc) of the service registering data |
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SERVICE_DESCRIPTION - A description of the service registering data |
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=cut |
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sub new { |
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my ($package, $uri, $conf) = @_; |
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my $self = fields::new($package); |
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$self->{URI} = $uri; |
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if(defined $conf and $conf ne "") { |
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$self->{CONF} = \%{$conf}; |
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} |
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$self->{CHUNK} = 50; |
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$self->{ALIVE} = 0; |
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$self->{FIRST} = 1; |
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return $self; |
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} |
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=head2 setURI ($self, $uri) |
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(Re-)Sets the value for the LS URI. |
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=cut |
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sub setURI { |
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my ($self, $uri) = @_; |
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my $logger = get_logger("perfSONAR_PS::Client::LS::Remote"); |
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if(defined $uri and $uri ne "") { |
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$self->{URI} = $uri; |
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} |
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else { |
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$logger->error("Missing argument."); |
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} |
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return; |
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} |
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152
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=head2 setConf ($self, \%conf) |
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(Re-)Sets the value for the 'conf' hash. |
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=cut |
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sub setConf { |
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my ($self, $conf) = @_; |
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my $logger = get_logger("perfSONAR_PS::Client::LS::Remote"); |
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if(defined $conf and $conf ne "") { |
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$self->{CONF} = \%{$conf}; |
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} |
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else { |
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$logger->error("Missing argument."); |
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} |
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return; |
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} |
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=head2 createKey ($self, $key) |
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Creates a 'key' value that is used to access the LS. |
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=cut |
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sub createKey { |
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my($self, $lsKey) = @_; |
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my $key = " \n"; |
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$key = $key . " \n"; |
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if (defined $lsKey and $lsKey ne "") { |
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$key = $key . " ".$lsKey."\n"; |
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} else { |
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$key = $key . " ".$self->{CONF}->{"SERVICE_ACCESSPOINT"}."\n"; |
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} |
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$key = $key . " \n"; |
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$key = $key . " \n"; |
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return $key; |
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} |
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185
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=head2 createService ($self) |
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Creates the 'service' subject (description of the service) for LS registration. |
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=cut |
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sub createService { |
189
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my($self) = @_; |
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my $logger = get_logger("perfSONAR_PS::Client::LS::Remote"); |
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my $service = " \n"; |
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$service = $service . " \n"; |
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$service = $service . " ".$self->{CONF}->{"SERVICE_NAME"}."\n" if (defined $self->{CONF}->{"SERVICE_NAME"}); |
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$service = $service . " ".$self->{CONF}->{"SERVICE_ACCESSPOINT"}."\n" if (defined $self->{CONF}->{"SERVICE_ACCESSPOINT"}); |
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$service = $service . " ".$self->{CONF}->{"SERVICE_TYPE"}."\n" if (defined $self->{CONF}->{"SERVICE_TYPE"}); |
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$service = $service . " ".$self->{CONF}->{"SERVICE_DESCRIPTION"}."\n" if (defined $self->{CONF}->{"SERVICE_DESCRIPTION"}); |
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$service = $service . " \n"; |
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$service = $service . " \n"; |
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return $service; |
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} |
201
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202
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=head2 callLS ($self, $sender, $message) |
203
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Given a message and a sender, contact an LS and parse the results. |
204
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=cut |
205
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sub callLS { |
206
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my($self, $sender, $message) = @_; |
207
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my $logger = get_logger("perfSONAR_PS::Client::LS::Remote"); |
208
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my $error; |
209
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my $responseContent = $sender->sendReceive(makeEnvelope($message), "", \$error); |
210
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if($error ne "") { |
211
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$logger->error("sendReceive failed: $error"); |
212
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return -1; |
213
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} |
214
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my $parser = XML::LibXML->new(); |
215
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if(defined $responseContent and $responseContent ne "" and |
216
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not ($responseContent =~ m/^\d+/x)) { |
217
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my $doc = ""; |
218
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eval { |
219
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|
$doc = $parser->parse_string($responseContent); |
220
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}; |
221
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if($@) { |
222
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$logger->error("Parser failed: ".$@); |
223
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return -1; |
224
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} |
225
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else { |
226
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my $msg = $doc->getDocumentElement->getElementsByTagNameNS("http://ggf.org/ns/nmwg/base/2.0/", "message")->get_node(1); |
227
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if($msg) { |
228
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my $eventType = findvalue($msg, "./nmwg:metadata/nmwg:eventType"); |
229
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if(defined $eventType and $eventType =~ m/success/x) { |
230
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return 0; |
231
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} |
232
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} |
233
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} |
234
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} |
235
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return -1; |
236
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} |
237
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238
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=head2 sendDeregister ($self, $key) |
239
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Deregisters the data with the specified key |
240
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=cut |
241
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|
sub sendDeregister { |
242
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|
my ($self, $key) = @_; |
243
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244
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if (not defined $self->{URI}) { |
245
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return -1; |
246
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} |
247
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248
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my ($host, $port, $endpoint) = &perfSONAR_PS::Transport::splitURI($self->{URI}); |
249
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|
|
|
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|
if (not defined $host and not defined $port and not defined $endpoint) { |
250
|
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|
return -1; |
251
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|
} |
252
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253
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|
my $sender = new perfSONAR_PS::Transport($host, $port, $endpoint); |
254
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255
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256
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|
my $doc = perfSONAR_PS::XML::Document_string->new(); |
257
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|
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|
startMessage($doc, "message.".genuid(), "", "LSDeregisterRequest", "", {perfsonar=>"http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/", psservice=>"http://ggf.org/ns/nmwg/tools/org/perfsonar/service/1.0/"}); |
258
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259
|
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|
my $mdID = "metadata.".genuid(); |
260
|
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|
createMetadata($doc, $mdID, "", createKey($self, $key), undef); |
261
|
|
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|
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|
createData($doc, "data.".genuid(), $mdID, "", undef); |
262
|
|
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|
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|
endMessage($doc); |
263
|
|
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264
|
|
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|
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|
return callLS($self, $sender, $doc->getValue()); |
265
|
|
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|
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|
} |
266
|
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267
|
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|
=head2 sendKeepalive ($self, $key) |
268
|
|
|
|
|
|
|
Sends a keepalive message for the data with the specified key |
269
|
|
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|
|
|
|
=cut |
270
|
|
|
|
|
|
|
sub sendKeepalive { |
271
|
|
|
|
|
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|
my ($self, $key) = @_; |
272
|
|
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273
|
|
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|
|
|
|
if (not defined $self->{URI}) { |
274
|
|
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|
|
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|
return -1; |
275
|
|
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|
|
|
|
} |
276
|
|
|
|
|
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|
|
277
|
|
|
|
|
|
|
my ($host, $port, $endpoint) = &perfSONAR_PS::Transport::splitURI($self->{URI}); |
278
|
|
|
|
|
|
|
if (not defined $host and not defined $port and not defined $endpoint) { |
279
|
|
|
|
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|
|
return -1; |
280
|
|
|
|
|
|
|
} |
281
|
|
|
|
|
|
|
|
282
|
|
|
|
|
|
|
my $sender = new perfSONAR_PS::Transport($host, $port, $endpoint); |
283
|
|
|
|
|
|
|
|
284
|
|
|
|
|
|
|
|
285
|
|
|
|
|
|
|
my $doc = perfSONAR_PS::XML::Document_string->new(); |
286
|
|
|
|
|
|
|
startMessage($doc, "message.".genuid(), "", "LSKeepaliveRequest", "", {perfsonar=>"http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/", psservice=>"http://ggf.org/ns/nmwg/tools/org/perfsonar/service/1.0/"}); |
287
|
|
|
|
|
|
|
|
288
|
|
|
|
|
|
|
my $mdID = "metadata.".genuid(); |
289
|
|
|
|
|
|
|
createMetadata($doc, $mdID, "", createKey($self, $key), undef); |
290
|
|
|
|
|
|
|
createData($doc, "data.".genuid(), $mdID, "", undef); |
291
|
|
|
|
|
|
|
endMessage($doc); |
292
|
|
|
|
|
|
|
|
293
|
|
|
|
|
|
|
return callLS($self, $sender, $doc->getValue()); |
294
|
|
|
|
|
|
|
} |
295
|
|
|
|
|
|
|
|
296
|
|
|
|
|
|
|
=head2 registerStatic ($self, \@data_ref) |
297
|
|
|
|
|
|
|
Performs registration of 'static' data with an LS. Static in this sense |
298
|
|
|
|
|
|
|
indicates that the data in the underlying storage DOES NOT change. This |
299
|
|
|
|
|
|
|
function uses special messages that intend to simply keep the data alive, |
300
|
|
|
|
|
|
|
not worrying at all if something comes in that is new or goes away that is |
301
|
|
|
|
|
|
|
old. |
302
|
|
|
|
|
|
|
=cut |
303
|
|
|
|
|
|
|
sub registerStatic { |
304
|
|
|
|
|
|
|
my($self, $data_ref) = @_; |
305
|
|
|
|
|
|
|
my $logger = get_logger("perfSONAR_PS::Client::LS::Remote"); |
306
|
|
|
|
|
|
|
|
307
|
|
|
|
|
|
|
if (not defined $self->{URI}) { |
308
|
|
|
|
|
|
|
return -1; |
309
|
|
|
|
|
|
|
} |
310
|
|
|
|
|
|
|
|
311
|
|
|
|
|
|
|
if(!$self->{ALIVE}) { |
312
|
|
|
|
|
|
|
my $echo_service = perfSONAR_PS::Client::Echo->new($self->{URI}); |
313
|
|
|
|
|
|
|
my ($status, $res) = $echo_service->ping(); |
314
|
|
|
|
|
|
|
if ($status == -1) { |
315
|
|
|
|
|
|
|
$logger->error("Ping to ".$self->{URI}." failed: $res"); |
316
|
|
|
|
|
|
|
return -1; |
317
|
|
|
|
|
|
|
} |
318
|
|
|
|
|
|
|
$self->{ALIVE} = 1; |
319
|
|
|
|
|
|
|
} |
320
|
|
|
|
|
|
|
|
321
|
|
|
|
|
|
|
if($self->{FIRST}) { |
322
|
|
|
|
|
|
|
if ($self->sendDeregister($self->{CONF}->{"SERVICE_ACCESSPOINT"}) == 0) { |
323
|
|
|
|
|
|
|
$logger->debug("Nothing registered."); |
324
|
|
|
|
|
|
|
} |
325
|
|
|
|
|
|
|
else { |
326
|
|
|
|
|
|
|
$logger->debug("Removed old registration."); |
327
|
|
|
|
|
|
|
} |
328
|
|
|
|
|
|
|
|
329
|
|
|
|
|
|
|
my @resultsString = (); |
330
|
|
|
|
|
|
|
|
331
|
|
|
|
|
|
|
@resultsString = @{$data_ref}; |
332
|
|
|
|
|
|
|
|
333
|
|
|
|
|
|
|
if($#resultsString != -1) { |
334
|
|
|
|
|
|
|
my ($status, $res) = $self->__register(createService($self), $data_ref); |
335
|
|
|
|
|
|
|
if ($status == -1) { |
336
|
|
|
|
|
|
|
$logger->error("Unable to register data with LS."); |
337
|
|
|
|
|
|
|
$self->{ALIVE} = 0; |
338
|
|
|
|
|
|
|
} |
339
|
|
|
|
|
|
|
} |
340
|
|
|
|
|
|
|
} |
341
|
|
|
|
|
|
|
else { |
342
|
|
|
|
|
|
|
if ($self->sendKeepalive() == -1) { |
343
|
|
|
|
|
|
|
my @resultsString = (); |
344
|
|
|
|
|
|
|
|
345
|
|
|
|
|
|
|
@resultsString = @{$data_ref}; |
346
|
|
|
|
|
|
|
|
347
|
|
|
|
|
|
|
if($#resultsString != -1) { |
348
|
|
|
|
|
|
|
my ($status, $res) = $self->__register(createService($self), $data_ref); |
349
|
|
|
|
|
|
|
if ($status == -1) { |
350
|
|
|
|
|
|
|
$logger->error("Unable to register data with LS."); |
351
|
|
|
|
|
|
|
$self->{ALIVE} = 0; |
352
|
|
|
|
|
|
|
return -1; |
353
|
|
|
|
|
|
|
} |
354
|
|
|
|
|
|
|
} |
355
|
|
|
|
|
|
|
} |
356
|
|
|
|
|
|
|
} |
357
|
|
|
|
|
|
|
|
358
|
|
|
|
|
|
|
$self->{FIRST} = 0 if $self->{FIRST}; |
359
|
|
|
|
|
|
|
return 0; |
360
|
|
|
|
|
|
|
} |
361
|
|
|
|
|
|
|
|
362
|
|
|
|
|
|
|
=head2 __register ($self, $subject, $data_ref) |
363
|
|
|
|
|
|
|
Performs the actual data registration. Unlike the above registration |
364
|
|
|
|
|
|
|
functions, this function does not try to perform any of the |
365
|
|
|
|
|
|
|
keepalive/deregister registration tricks. It simply registers the specified |
366
|
|
|
|
|
|
|
data. As part of the registration, it splits the data into chunks and |
367
|
|
|
|
|
|
|
registers each independently. |
368
|
|
|
|
|
|
|
=cut |
369
|
|
|
|
|
|
|
sub __register { |
370
|
|
|
|
|
|
|
my ($self, $subject, $data_ref) = @_; |
371
|
|
|
|
|
|
|
my $logger = get_logger("perfSONAR_PS::Client::LS::Remote"); |
372
|
|
|
|
|
|
|
|
373
|
|
|
|
|
|
|
if (not defined $self->{URI}) { |
374
|
|
|
|
|
|
|
return -1 |
375
|
|
|
|
|
|
|
} |
376
|
|
|
|
|
|
|
|
377
|
|
|
|
|
|
|
my ($host, $port, $endpoint) = &perfSONAR_PS::Transport::splitURI($self->{URI}); |
378
|
|
|
|
|
|
|
if (not defined $host and not defined $port and not defined $endpoint) { |
379
|
|
|
|
|
|
|
return -1 |
380
|
|
|
|
|
|
|
} |
381
|
|
|
|
|
|
|
|
382
|
|
|
|
|
|
|
my $sender = new perfSONAR_PS::Transport($host, $port, $endpoint); |
383
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
my @data = @{ $data_ref }; |
385
|
|
|
|
|
|
|
my $iterations = int((($#data+1)/$self->{CHUNK})); |
386
|
|
|
|
|
|
|
my $x = 0; |
387
|
|
|
|
|
|
|
|
388
|
|
|
|
|
|
|
for(my $y = 1; $y <= ($iterations+1); $y++) { |
389
|
|
|
|
|
|
|
my $doc = perfSONAR_PS::XML::Document_string->new(); |
390
|
|
|
|
|
|
|
startMessage($doc, "message.".genuid(), "", "LSRegisterRequest", "", {perfsonar=>"http://ggf.org/ns/nmwg/tools/org/perfsonar/1.0/", psservice=>"http://ggf.org/ns/nmwg/tools/org/perfsonar/service/1.0/"}); |
391
|
|
|
|
|
|
|
my $mdID = "metadata.".genuid(); |
392
|
|
|
|
|
|
|
createMetadata($doc, $mdID, "", createService($self), undef); |
393
|
|
|
|
|
|
|
for(; $x < ($y*$self->{CHUNK}) and $x <= $#data; $x++) { |
394
|
|
|
|
|
|
|
createData($doc, "data.".genuid(), $mdID, $data[$x], undef); |
395
|
|
|
|
|
|
|
} |
396
|
|
|
|
|
|
|
endMessage($doc); |
397
|
|
|
|
|
|
|
unless(callLS($self, $sender, $doc->getValue()) == 0) { |
398
|
|
|
|
|
|
|
$logger->error("Unable to register data with LS."); |
399
|
|
|
|
|
|
|
return -1; |
400
|
|
|
|
|
|
|
} |
401
|
|
|
|
|
|
|
} |
402
|
|
|
|
|
|
|
|
403
|
|
|
|
|
|
|
return 0; |
404
|
|
|
|
|
|
|
} |
405
|
|
|
|
|
|
|
|
406
|
|
|
|
|
|
|
=head2 registerDynamic ($self, \@data_ref) |
407
|
|
|
|
|
|
|
Performs registration of 'dynamic' data with an LS. Dynamic in this sense |
408
|
|
|
|
|
|
|
indicates that the data in the underlying storage DOES change. This |
409
|
|
|
|
|
|
|
function uses special messages that will remove all old data and insert |
410
|
|
|
|
|
|
|
everything brand new with each registration. |
411
|
|
|
|
|
|
|
=cut |
412
|
|
|
|
|
|
|
sub registerDynamic { |
413
|
|
|
|
|
|
|
my($self, $data_ref) = @_; |
414
|
|
|
|
|
|
|
my $logger = get_logger("perfSONAR_PS::Client::LS::Remote"); |
415
|
|
|
|
|
|
|
|
416
|
|
|
|
|
|
|
if (not defined $self->{URI}) { |
417
|
|
|
|
|
|
|
return -1; |
418
|
|
|
|
|
|
|
} |
419
|
|
|
|
|
|
|
|
420
|
|
|
|
|
|
|
if(!$self->{ALIVE}) { |
421
|
|
|
|
|
|
|
my $echo_service = perfSONAR_PS::Client::Echo->new($self->{URI}); |
422
|
|
|
|
|
|
|
my ($status, $res) = $echo_service->ping(); |
423
|
|
|
|
|
|
|
if ($status == -1) { |
424
|
|
|
|
|
|
|
$logger->error("Ping to ".$self->{URI}." failed: $res"); |
425
|
|
|
|
|
|
|
return -1; |
426
|
|
|
|
|
|
|
} |
427
|
|
|
|
|
|
|
|
428
|
|
|
|
|
|
|
$self->{ALIVE} = 1; |
429
|
|
|
|
|
|
|
} |
430
|
|
|
|
|
|
|
|
431
|
|
|
|
|
|
|
if($self->{FIRST}) { |
432
|
|
|
|
|
|
|
if ($self->sendDeregister($self->{CONF}->{"SERVICE_ACCESSPOINT"}) == 0) { |
433
|
|
|
|
|
|
|
$logger->debug("Nothing registered."); |
434
|
|
|
|
|
|
|
} |
435
|
|
|
|
|
|
|
else { |
436
|
|
|
|
|
|
|
$logger->debug("Removed old registration."); |
437
|
|
|
|
|
|
|
} |
438
|
|
|
|
|
|
|
|
439
|
|
|
|
|
|
|
my @resultsString = @{$data_ref}; |
440
|
|
|
|
|
|
|
|
441
|
|
|
|
|
|
|
if($#resultsString != -1) { |
442
|
|
|
|
|
|
|
if ($self->__register(createService($self), $data_ref) == -1) { |
443
|
|
|
|
|
|
|
$logger->error("Unable to register data with LS."); |
444
|
|
|
|
|
|
|
$self->{ALIVE} = 0; |
445
|
|
|
|
|
|
|
} |
446
|
|
|
|
|
|
|
} |
447
|
|
|
|
|
|
|
} else { |
448
|
|
|
|
|
|
|
my @resultsString = @{$data_ref}; |
449
|
|
|
|
|
|
|
|
450
|
|
|
|
|
|
|
my $subject = ""; |
451
|
|
|
|
|
|
|
if ($self->sendKeepalive() == -1) { |
452
|
|
|
|
|
|
|
$subject = createService($self); |
453
|
|
|
|
|
|
|
} |
454
|
|
|
|
|
|
|
else { |
455
|
|
|
|
|
|
|
$subject = createKey($self, $self->{CONF}->{SERVICE_ACCESSPOINT})."\n".createService($self); |
456
|
|
|
|
|
|
|
} |
457
|
|
|
|
|
|
|
|
458
|
|
|
|
|
|
|
if($#resultsString != -1) { |
459
|
|
|
|
|
|
|
if ($self->__register($subject, $data_ref) == -1) { |
460
|
|
|
|
|
|
|
$logger->error("Unable to register data with LS."); |
461
|
|
|
|
|
|
|
$self->{ALIVE} = 0; |
462
|
|
|
|
|
|
|
return -1; |
463
|
|
|
|
|
|
|
} |
464
|
|
|
|
|
|
|
} |
465
|
|
|
|
|
|
|
} |
466
|
|
|
|
|
|
|
|
467
|
|
|
|
|
|
|
$self->{FIRST} = 0 if ($self->{FIRST}); |
468
|
|
|
|
|
|
|
|
469
|
|
|
|
|
|
|
return 0; |
470
|
|
|
|
|
|
|
} |
471
|
|
|
|
|
|
|
|
472
|
|
|
|
|
|
|
=head2 query ($self, \%queries) |
473
|
|
|
|
|
|
|
This function sends the specified queries to the LS and returns the |
474
|
|
|
|
|
|
|
results. The queries are given as a hash table with each key/value pair |
475
|
|
|
|
|
|
|
being an identifier/a query. Each query gets executed and the returned |
476
|
|
|
|
|
|
|
value is a hash containing the same identifiers as keys, but instead of |
477
|
|
|
|
|
|
|
pointing to queries, they point to an array containing a status and a |
478
|
|
|
|
|
|
|
result. The status is either 0 or -1. If it's 0, the result is a pointer to |
479
|
|
|
|
|
|
|
the data element. If it's -1, the result is the error message. |
480
|
|
|
|
|
|
|
=cut |
481
|
|
|
|
|
|
|
sub query { |
482
|
|
|
|
|
|
|
my ($self, $queries) = @_; |
483
|
|
|
|
|
|
|
my $logger = get_logger("perfSONAR_PS::Client::LS::Remote"); |
484
|
|
|
|
|
|
|
|
485
|
|
|
|
|
|
|
if (not defined $self->{URI}) { |
486
|
|
|
|
|
|
|
return -1; |
487
|
|
|
|
|
|
|
} |
488
|
|
|
|
|
|
|
|
489
|
|
|
|
|
|
|
my ($host, $port, $endpoint) = &perfSONAR_PS::Transport::splitURI($self->{URI}); |
490
|
|
|
|
|
|
|
if (not defined $host and not defined $port and not defined $endpoint) { |
491
|
|
|
|
|
|
|
return -1; |
492
|
|
|
|
|
|
|
} |
493
|
|
|
|
|
|
|
|
494
|
|
|
|
|
|
|
my $request = ""; |
495
|
|
|
|
|
|
|
$request .= "
|
496
|
|
|
|
|
|
|
$request .= " xmlns:nmwg=\"http://ggf.org/ns/nmwg/base/2.0/\"\n"; |
497
|
|
|
|
|
|
|
$request .= " xmlns:xquery=\"http://ggf.org/ns/nmwg/tools/org/perfsonar/service/lookup/xquery/1.0/\">\n"; |
498
|
|
|
|
|
|
|
foreach my $query_id (keys %{ $queries }) { |
499
|
|
|
|
|
|
|
$request .= " \n"; |
500
|
|
|
|
|
|
|
$request .= " \n"; |
501
|
|
|
|
|
|
|
$request .= $queries->{$query_id}; |
502
|
|
|
|
|
|
|
$request .= " \n"; |
503
|
|
|
|
|
|
|
$request .= " http://ggf.org/ns/nmwg/tools/org/perfsonar/service/lookup/xquery/1.0\n"; |
504
|
|
|
|
|
|
|
$request .= " \n"; |
505
|
|
|
|
|
|
|
$request .= " native\n"; |
506
|
|
|
|
|
|
|
$request .= " \n"; |
507
|
|
|
|
|
|
|
$request .= " \n"; |
508
|
|
|
|
|
|
|
$request .= " \n"; |
509
|
|
|
|
|
|
|
} |
510
|
|
|
|
|
|
|
$request .= "\n"; |
511
|
|
|
|
|
|
|
|
512
|
|
|
|
|
|
|
my ($status, $res) = consultArchive($host, $port, $endpoint, $request); |
513
|
|
|
|
|
|
|
if ($status != 0) { |
514
|
|
|
|
|
|
|
my $msg = "Error consulting LS: $res"; |
515
|
|
|
|
|
|
|
$logger->error($msg); |
516
|
|
|
|
|
|
|
return -1; |
517
|
|
|
|
|
|
|
} |
518
|
|
|
|
|
|
|
|
519
|
|
|
|
|
|
|
$logger->debug("Response: ".$res->toString); |
520
|
|
|
|
|
|
|
|
521
|
|
|
|
|
|
|
my %ret_structure = (); |
522
|
|
|
|
|
|
|
|
523
|
|
|
|
|
|
|
foreach my $d ($res->getChildrenByTagName("nmwg:data")) { |
524
|
|
|
|
|
|
|
foreach my $m ($res->getChildrenByTagName("nmwg:metadata")) { |
525
|
|
|
|
|
|
|
my $md_id = $m->getAttribute("id"); |
526
|
|
|
|
|
|
|
my $md_idref = $m->getAttribute("metadataIdRef"); |
527
|
|
|
|
|
|
|
my $d_idref = $d->getAttribute("metadataIdRef"); |
528
|
|
|
|
|
|
|
|
529
|
|
|
|
|
|
|
if($md_id eq $d_idref) { |
530
|
|
|
|
|
|
|
my $query_id; |
531
|
|
|
|
|
|
|
my $eventType = findvalue($m, "nmwg:eventType"); |
532
|
|
|
|
|
|
|
|
533
|
|
|
|
|
|
|
if (defined $md_idref and $md_idref =~ /perfsonar_ps\.meta\.(.*)/x) { |
534
|
|
|
|
|
|
|
$query_id = $1; |
535
|
|
|
|
|
|
|
} elsif ($md_id =~ /perfsonar_ps\.meta\.(.*)/x) { |
536
|
|
|
|
|
|
|
$query_id = $1; |
537
|
|
|
|
|
|
|
} else { |
538
|
|
|
|
|
|
|
my $msg = "Received unknown response: $md_id/$md_idref"; |
539
|
|
|
|
|
|
|
$logger->error($msg); |
540
|
|
|
|
|
|
|
next; |
541
|
|
|
|
|
|
|
} |
542
|
|
|
|
|
|
|
|
543
|
|
|
|
|
|
|
my @retval; |
544
|
|
|
|
|
|
|
if (defined $eventType and $eventType =~ /^error\./x) { |
545
|
|
|
|
|
|
|
my $error_msg = findvalue($d, "./nmwgr:datum"); |
546
|
|
|
|
|
|
|
$error_msg = "Unknown error" if (not defined $error_msg or $error_msg eq ""); |
547
|
|
|
|
|
|
|
@retval = (-1, $error_msg); |
548
|
|
|
|
|
|
|
} else { |
549
|
|
|
|
|
|
|
@retval = (0, $d); |
550
|
|
|
|
|
|
|
} |
551
|
|
|
|
|
|
|
|
552
|
|
|
|
|
|
|
$ret_structure{$query_id} = \@retval; |
553
|
|
|
|
|
|
|
} |
554
|
|
|
|
|
|
|
} |
555
|
|
|
|
|
|
|
} |
556
|
|
|
|
|
|
|
|
557
|
|
|
|
|
|
|
return (0, \%ret_structure); |
558
|
|
|
|
|
|
|
} |
559
|
|
|
|
|
|
|
|
560
|
|
|
|
|
|
|
1; |
561
|
|
|
|
|
|
|
|
562
|
|
|
|
|
|
|
|
563
|
|
|
|
|
|
|
__END__ |