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|
package StarGit::Graph;
use Dancer ':syntax';
use Moose;
with qw(
GitHub::Collector::Role::MongoDB
GitHub::Collector::Role::Graph::Nodes
GitHub::Collector::Role::Graph::Edges
GitHub::Collector::Role::Graph::Neighbors
GitHub::Collector::Role::Graph::Query
GitHub::Collector::Role::Graph::Search
GitHub::Collector::Role::Graph::Gexf
);
has name => (
is => 'ro',
required => 1,
isa => 'Str',
);
sub exists {
my ($self, $name) = @_;
my $info = $self->db_profiles->find_one( { login => $name } );
$info;
}
sub neighbors {
my ($self, $name) = @_;
$name ||= $self->name;
$self->_neighbors($name);
foreach my $id ( keys %{$self->edges}){
$self->connections($id);
}
$self->remove_leaves();
}
sub _neighbors {
my ( $self, $name ) = @_;
my $desc = $self->_get_info_from_login($name);
my $degree = $self->nodes->{$name} ? $self->nodes->{$name}->{degree} : 0;
delete $self->nodes->{$name};
$self->nodes->{$name} = {
id => $name,
label => $name,
degree => $degree,
%$desc,
};
foreach my $type (qw/source target/) {
$self->_fetch_edges( $name, $type );
}
}
sub connections {
my ( $self, $id ) = @_;
if ( $self->edges->{ $id}->{sourceID} eq $self->name ) {
$self->_neighbors( $self->edges->{$id}->{targetID} );
}
else {
$self->_neighbors( $self->edges->{ $id}->{sourceID} );
}
}
sub remove_leaves {
my $self = shift;
foreach my $id ( keys %{$self->nodes} ) {
if ( $self->nodes->{$id}->{degree} < 2 ) {
delete $self->nodes->{$id};
}
}
foreach my $id ( keys %{$self->edges} ) {
unless ( $self->nodes->{ $self->edges->{$id}->{sourceID} }
&& $self->nodes->{ $self->edges->{$id}->{targetID} } )
{
delete $self->edges->{ $id };
}
}
}
sub _fetch_edges {
my ( $self, $name, $type ) = @_;
my $connections = $self->db_edges->find( { $type => $name } );
while ( my $edge = $connections->next ) {
my $look = $type eq 'source ' ? 'target' : 'source';
$self->_create_edge($name, $look, $edge);
}
}
sub _create_edge {
my ( $self, $name, $type, $edge ) = @_;
return if $name eq $edge->{$type};
my $edge_id = $edge->{$type} . $name;
if ( !defined $self->edges->{$edge_id} ) {
$self->edges->{$edge_id} = {
id => $edge_id,
targetID => $name,
sourceID => $edge->{$type},
weight => $edge->{weight},
};
$self->nodes->{$name}->{degree}++;
if ( defined $self->nodes->{ $edge->{$type} } ) {
$self->nodes->{ $edge->{$type} }->{degree}++;
}
else {
my $desc =
$self->_get_info_from_login( $edge->{$type} );
$self->nodes->{ $edge->{$type} } = {
id => $edge->{$type},
label => $edge->{$type},
degree => 1,
%$desc,
};
}
}
}
sub _get_info_from_login {
my ( $self, $login ) = @_;
my $info = $self->db_profiles->find_one( { login => $login } );
return undef if ( !defined $info );
my $desc = {
country => $info->{country} || 'null',
language => $info->{language} || 'null',
followers_count => $info->{followers_count},
indegree => $info->{indegree},
};
return $desc;
}
1;
|
