119 lines
3.2 KiB
Perl
119 lines
3.2 KiB
Perl
package WebGUI::Workflow::Activity::GetSyndicatedContent;
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=head1 LEGAL
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-------------------------------------------------------------------
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WebGUI is Copyright 2001-2008 Plain Black Corporation.
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-------------------------------------------------------------------
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Please read the legal notices (docs/legal.txt) and the license
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(docs/license.txt) that came with this distribution before using
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this software.
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-------------------------------------------------------------------
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http://www.plainblack.com info@plainblack.com
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-------------------------------------------------------------------
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=cut
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use strict;
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use base 'WebGUI::Workflow::Activity';
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use WebGUI::Asset::Wobject::SyndicatedContent;
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use JSON;
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=head1 NAME
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Package WebGUI::Workflow::Activity::GetSyndicatedContent;
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=head1 DESCRIPTION
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Prefetches syndicated content URLs so that the pages can be served up more quickly.
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=head1 SYNOPSIS
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See WebGUI::Workflow::Activity for details on how to use any activity.
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=head1 METHODS
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These methods are available from this class:
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=cut
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#-------------------------------------------------------------------
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=head2 definition ( session, definition )
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See WebGUI::Workflow::Activity::defintion() for details.
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=cut
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sub definition {
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my $class = shift;
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my $session = shift;
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my $definition = shift;
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my $i18n = WebGUI::International->new($session, "Asset_SyndicatedContent");
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push(@{$definition}, {
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name=>$i18n->get("get syndicated content"),
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properties=> { }
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});
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return $class->SUPER::definition($session,$definition);
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}
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#-------------------------------------------------------------------
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=head2 execute ( )
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See WebGUI::Workflow::Activity::execute() for details.
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=cut
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sub execute {
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my $self = shift;
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my $object = shift;
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my $instance = shift;
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unless (defined $instance) {
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$self->session->errorHandler->error("Could not instanciate Workflow Instance in GetSyndicatedContent Activity");
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return $self->ERROR;
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}
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my $log = $self->session->log;
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# start time to check for timeouts
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my $time = time();
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my $ttl = $self->getTTL;
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my $assets = JSON->new->decode($instance->getScratch("syndicatedassets") || '[]');
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if (scalar @$assets < 1) {
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$assets = $self->session->db->buildArrayRef("select assetId from asset where className like 'WebGUI::Asset::Wobject::SyndicatedContent'");
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}
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while (my $id = shift(@{$assets})) {
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# Get RSS data, which will be stored in the cache
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$log->info("GetSyndicatedContent: Caching for $id");
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my $asset = WebGUI::Asset::Wobject::SyndicatedContent->new($self->session, $id);
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if (defined $asset) {
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my $feed = $asset->generateFeed;
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unless ($feed->isa('XML::FeedPP')) {
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$log->error("GetSyndicatedContent: Syndicated Content Asset $id returned an invalid feed");
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}
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}
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else {
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$log->error("GetSyndicatedContent: Couldn't instanciate $id")
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}
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# Check for timeout
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last if (time() - $time > $ttl);
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}
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# if there are urls left, we need to process again
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if (scalar(@$assets) > 0) {
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$instance->setScratch("syndicatedassets", JSON->new->encode($assets));
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return $self->WAITING;
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}
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$instance->deleteScratch("syndicatedassets");
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return $self->COMPLETE;
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}
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1;
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