env var OBJECT_REMOTE_LOG_SELECTIONS allows selection of 1 or more controller classes...

[scpubgit/Object-Remote.git] / lib / Object / Remote / Logging.pm

diff --git a/lib/Object/Remote/Logging.pm b/lib/Object/Remote/Logging.pm
index 1839f22..d8bfdba 100644 (file)
--- a/lib/Object/Remote/Logging.pm
+++ b/lib/Object/Remote/Logging.pm
@@ -1,15 +1,74 @@
 package Object::Remote::Logging;
 
-use strictures 1;
+use Moo;
+use Scalar::Util qw(blessed);
+use Object::Remote::Logging::Logger;
+use Exporter::Declare;
 
-use Log::Contextual::Routed qw( :log );
-use base qw(Log::Contextual::Routed); 
+extends 'Log::Contextual';
 
-sub get_parent_router { $_[0]->SUPER::get_parent_router }
+exports(qw( router arg_levels ));
 
-use Data::Dumper; 
+sub router {
+  our $Router_Instance ||= do {
+    require Object::Remote::Logging::Router;
+    Object::Remote::Logging::Router->new;
+  }
+}
 
-sub init_node { my $n = `hostname`; chomp($n); $_[0]->add_child_router("[node $n]", __PACKAGE__->get_root_router) }
+#log level descriptions
+#info - standard log level - normal program output for the end user
+#warn - output for program that is executing quietly
+#error - output for program that is running more quietly
+#fatal - it is not possible to continue execution; this level is as quiet as is possible
+#verbose - output for program executing verbosely (-v)
+#debug - output for program running more verbosely (-v -v)
+#trace - output for program running extremely verbosely (-v -v -v)
+sub arg_levels {
+  #the order of the log levels is significant with the
+  #most verbose level being first in the list and the
+  #most quiet as the last item
+  return [qw( trace debug verbose info warn error fatal )];
+}
+
+#this is invoked on all nodes
+sub init_logging {
+  my $level = $ENV{OBJECT_REMOTE_LOG_LEVEL};
+  my $format = $ENV{OBJECT_REMOTE_LOG_FORMAT};
+  #TODO allow the selections value to be * so it selects everything
+  my $selections = $ENV{OBJECT_REMOTE_LOG_SELECTIONS};
+  my %controller_should_log;
+  
+  return unless defined $level;
+  $format = "[%l %r] %s" unless defined $format;
+  $selections = __PACKAGE__ unless defined $selections;
+  %controller_should_log = map { $_ => 1 } split(' ', $selections);
+  
+  my $logger = Object::Remote::Logging::Logger->new(
+    min_level => lc($level), format => $format,
+    level_names => Object::Remote::Logging::arg_levels(),
+  );
+
+  #TODO check on speed of string compare against a hash with a single key
+  router()->connect(sub { 
+    my $controller = $_[1]->{controller};
+#    warn $controller;
+    return unless  $controller_should_log{$controller};
+    #skip things from remote hosts because they log to STDERR
+    #when OBJECT_REMOTE_LOG_LEVEL is in effect
+    return if $_[1]->{remote}->{connection_id};
+    $logger
+  });
+}
+
+#this is invoked by the controlling node
+#on the remote nodes
+sub init_logging_forwarding {
+  my ($self, %controller_info) = @_;
+  
+  router()->_remote_metadata({ connection_id => $controller_info{connection_id} });
+  router()->_forward_destination($controller_info{router});
+}
 
 1;