1 package Object::Remote::Logging::Router;
4 use Scalar::Util qw(weaken);
7 with 'Log::Contextual::Role::Router';
8 with 'Object::Remote::Role::LogForwarder';
10 has _connections => ( is => 'ro', required => 1, default => sub { [] } );
11 has _remote_metadata => ( is => 'rw' );
14 my ($self, $controller, $importer, $spec) = @_;
20 my ($self, %metadata) = @_;
21 my $package = $metadata{package};
22 my $level = $metadata{level};
23 my $is_level = "is_$level";
27 foreach my $selector (@{$self->_connections}) {
28 unless(defined $selector) {
33 foreach my $logger ($selector->($package, { %metadata })) {
34 next unless defined $logger;
35 next unless $logger->$is_level;
36 push(@loggers, $logger);
40 $self->_clean_connections if $need_clean;
45 #overloadable so a router can invoke a logger
48 my ($self, $logger, $level_name, $content, $metadata) = @_;
49 #Invoking the logger like this gets all available data to the
50 #logging object with out losing any information from the datastructure.
51 #This is not a backwards compatible way to invoke the loggers
52 #but it enables a lot of flexibility in the logger.
53 #The l-c router could have this method invoke the logger in
54 #a backwards compatible way and router sub classes invoke
55 #it in non-backwards compatible ways if desired
56 $logger->$level_name($content, $metadata);
59 #overloadable so forwarding can have the updated
60 #metadata but does not have to wrap get_loggers
61 #which has too many drawbacks
62 sub _deliver_message {
63 my ($self, $level, $generator, $args, $metadata) = @_;
64 my @loggers = $self->_get_loggers(%$metadata);
66 return unless @loggers > 0;
67 #this is the point where the user provided log message
68 #code block is executed
69 my @content = $generator->(@$args);
70 foreach my $logger (@loggers) {
71 $self->_invoke_logger($logger, $level, \@content, $metadata);
75 sub handle_log_request {
76 my ($self, $metadata_in, $generator, @args) = @_;
77 my %metadata = %{$metadata_in};
78 my $level = $metadata{level};
79 my $package = $metadata{package};
82 #caller_level is useless when log forwarding is in place
83 #so we won't tempt people with using it for now - access
84 #to caller level will be available in the future
85 my $caller_level = delete $metadata{caller_level};
86 $metadata{object_remote} = $self->_remote_metadata;
87 $metadata{timestamp} = time;
89 $metadata{hostname} = hostname;
91 my @caller_info = caller($caller_level);
92 $metadata{filename} = $caller_info[1];
93 $metadata{line} = $caller_info[2];
95 @caller_info = caller($caller_level + 1);
96 $metadata{method} = $caller_info[3];
97 $metadata{method} =~ s/^${package}::// if defined $metadata{method};
99 $self->_deliver_message($level, $generator, [ @args ], \%metadata);
103 my ($self, $destination, $is_weak) = @_;
106 if (ref($destination) ne 'CODE') {
107 $wrapped = sub { $destination };
109 $wrapped = $destination;
112 push(@{$self->_connections}, $wrapped);
113 weaken($self->_connections->[-1]) if $is_weak;
116 sub _clean_connections {
118 @{$self->{_connections}} = grep { defined } @{$self->{_connections}};