152 lines
4 KiB
Perl
152 lines
4 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 $self->ERROR;
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}
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my @syndicatedUrls = @{$self->getSyndicatedUrls($instance)};
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my @arrayCopy = @syndicatedUrls; # copy we can delete elements from inside the foreach loop
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my $time = time();
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foreach my $urls (@syndicatedUrls) {
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#Loop through the SyndicatedWobjects and split all the URLs they are syndicating off into
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#a separate array.
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my @urlsToSyndicate = split(/\s+/,$urls);
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foreach my $url (@urlsToSyndicate) {
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# We could timeout in here but I don't see a good way to handle that right now
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# May need to fix this in the future.
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my $returnValue = WebGUI::Asset::Wobject::SyndicatedContent::_get_rss_data($self->session, $url);
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unless (defined $returnValue) {
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$self->session->errorHandler->error("GetSyndicatedContent Workflow Activity: _get_rss_data returned undef while trying to process syndicated content url $url, which usually indicates an improper URL, or a malformed document");
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next;
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}
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}
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# Delete this element from the array
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splice(@arrayCopy,0,1);
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# Check for timeout
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last unless (time() - $time <= 60);
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}
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# See if we're done
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if (scalar(@arrayCopy) > 0) {
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$instance->setScratch("syndicatedUrls", JSON::to_json(@arrayCopy));
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return $self->WAITING;
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}
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$instance->deleteScratch("syndicatedUrls");
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return $self->COMPLETE;
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}
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#---------------------------------------------------------------------
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=head2 getWobjectUrls ( )
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Returns URLs from all of the Syndicated Content Wobjects from scratch or fetches them from the db if needed
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=head3 session
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A reference to the current webgui session
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=cut
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sub getSyndicatedUrls {
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my $self = shift;
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my $instance = shift;
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my $syndicatedUrls = $instance->getScratch("syndicatedUrls");
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unless ($syndicatedUrls) {
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my $urls = $self->session->db->buildArrayRef("select
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distinct SyndicatedContent.rssUrl from SyndicatedContent
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left join
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asset on SyndicatedContent.assetId=asset.assetId
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where
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asset.state='published'"
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);
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$instance->setScratch("syndicatedUrls", JSON::to_json($urls));
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return $urls;
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}
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return JSON::from_json($syndicatedUrls);
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}
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1;
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