ESL::Dispatch example for Jaybinks to work on monitoring.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16922 d0543943-73ff-0310-b7d9-9358b9ac24b2

libs/esl/perl/ESL/Dispatch.pm

+package ESL::Dispatch;
+use Data::Dumper;
+require ESL;
+require Exporter;
+use AutoLoader ();
+
+use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $AUTOLOAD);
+
+$VERSION = "1.0";
+
+@ISA = qw(Exporter DynaLoader);
+
+
+sub init($;$) {
+  my $proto = shift;
+  my $args = shift;
+  my $class = ref($proto) || $proto;
+  my $self = {};
+
+  $self->{_debug} = $args->{debug} ||= 0;
+
+  $self->{host} = $args->{host} ||= "localhost";
+  $self->{port} = $args->{port} ||= "8021";
+  $self->{pass} = $args->{pass} ||= "ClueCon";
+  $self->{_esl} = new ESL::ESLconnection("$self->{host}", "$self->{port}", "$self->{pass}");
+  $self->{_callback} = undef;
+
+  return bless($self, $class);
+}
+
+sub set_worker($;$$) {
+  my $self = shift;
+  $self->{_worker} = shift;
+  $self->{_timeout} = shift;
+}
+
+sub set_callback($;$$) {
+  my $self = shift;
+  my $event = shift;
+  $self->{_callback}->{$event} = shift;
+}
+
+sub render_event($;$$) {
+  my $self = shift;
+  my $event = shift;
+  my $h = $event->firstHeader();
+
+  while ($h) {
+    $val = $event->getHeader($h);
+    if($self->{_debug} > 3) {
+      print "$h -> $val\n";
+    }
+    if ($self->{_decode}) {
+      $val =~ s/\%([A-Fa-f0-9]{2})/pack('C', hex($1))/seg;
+    }
+    $self->{event_hash}->{lc($h)} = $val;
+    $h = $event->nextHeader();
+  }
+  # Execute callback for this event
+  eval {
+    if($self->{_debug}) {
+      $callback = lc($self->{event_hash}->{'event-name'});
+      print "DEBUG: executing $callback callback\n";
+    }
+    &{$self->{_callback}->{lc($self->{event_hash}->{'event-name'})}}($self);
+  };
+}
+
+
+sub run($;) {
+  my $self = shift;
+  my $event;
+
+  for(;;) {
+    # Only register for events we have callbacks for.
+    for my $key ( keys %{$self->{_callback}} ) {
+      $self->{_esl}->events("plain", "$key");
+    }
+
+    while ($self->{_esl}->connected()) {
+      if($self->{_timeout} > 0) {
+	$event = $self->{_esl}->recvEventTimed($self->{_timeout});
+	if(!$event) {
+	  eval {&{$self->{_worker}}($self);};
+	  next;
+	}
+      } else {
+	$event = $self->{_esl}->recvEvent();
+      }
+      $self->render_event($event,1);
+    }
+    sleep 1;
+    $self->{_esl} = new ESL::ESLconnection("$self->{host}", "$self->{port}", "$self->{pass}");
+  }
+}
+
+1;

libs/esl/perl/dispatch.pl

+#!/usr/bin/perl
+
+use ESL::Dispatch;
+use Data::Dumper;
+my $daemon = init ESL::Dispatch({});
+
+$| = 1;
+
+sub worker {
+  my $self = shift;
+  print "I'm a worker\n";
+}
+
+sub heartbeat {
+  my $self = shift;
+  my $event = $self->{event_hash};
+  print Dumper $event;
+}
+
+
+
+$daemon->set_worker(\&worker, 2000);
+$daemon->set_callback("heartbeat", \&heartbeat);
+$daemon->set_callback("channel_hangup", \&heartbeat);
+
+
+$daemon->run;