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' );
18 my ($self, %metadata) = @_;
19 my $package = $metadata{caller_package};
20 my $level = $metadata{message_level};
21 my $is_level = "is_$level";
25 foreach my $selector (@{$self->_connections}) {
26 unless(defined $selector) {
31 foreach my $logger ($selector->($package, { %metadata })) {
32 next unless defined $logger;
33 next unless $logger->$is_level;
34 push(@loggers, $logger);
38 $self->_clean_connections if $need_clean;
43 #overloadable so a router can invoke a logger
46 my ($self, $logger, $level_name, $content, $metadata) = @_;
47 #Invoking the logger like this gets all available data to the
48 #logging object with out losing any information from the datastructure.
49 #This is not a backwards compatible way to invoke the loggers
50 #but it enables a lot of flexibility in the logger.
51 #The l-c router could have this method invoke the logger in
52 #a backwards compatible way and router sub classes invoke
53 #it in non-backwards compatible ways if desired
54 $logger->$level_name($content, $metadata);
57 #overloadable so forwarding can have the updated
58 #metadata but does not have to wrap get_loggers
59 #which has too many drawbacks
60 sub _deliver_message {
61 my ($self, %message_info) = @_;
62 my @loggers = $self->_get_loggers(%message_info);
63 my $generator = $message_info{message_sub};
64 my $args = $message_info{message_args};
65 my $level = $message_info{message_level};
67 return unless @loggers > 0;
68 #this is the point where the user provided log message code block is executed
69 my @content = $generator->(@$args);
70 foreach my $logger (@loggers) {
71 $self->_invoke_logger($logger, $level, \@content, \%message_info);
75 sub handle_log_request {
76 my ($self, %message_info) = @_;
77 my $level = $message_info{message_level};
78 my $package = $message_info{caller_package};
81 #caller_level is useless when log forwarding is in place
82 #so we won't tempt people with using it
83 my $caller_level = delete $message_info{caller_level};
84 $message_info{object_remote} = $self->_remote_metadata;
85 $message_info{timestamp} = time;
86 $message_info{pid} = $$;
87 $message_info{hostname} = hostname;
89 my @caller_info = caller($caller_level);
90 $message_info{filename} = $caller_info[1];
91 $message_info{line} = $caller_info[2];
93 @caller_info = caller($caller_level + 1);
94 $message_info{method} = $caller_info[3];
95 $message_info{method} =~ s/^${package}::// if defined $message_info{method};
97 $self->_deliver_message(%message_info);
101 my ($self, $destination, $is_weak) = @_;
104 if (ref($destination) ne 'CODE') {
105 $wrapped = sub { $destination };
107 $wrapped = $destination;
110 push(@{$self->_connections}, $wrapped);
111 weaken($self->_connections->[-1]) if $is_weak;
114 sub _clean_connections {
116 @{$self->{_connections}} = grep { defined } @{$self->{_connections}};