Event: init structure and parse existing messages

src/lib/Hydra/Event.pm

@@ -0,0 +1,30 @@
+package Hydra::Event;
+
+
+use strict;
+use Hydra::Event::BuildFinished;
+use Hydra::Event::BuildStarted;
+use Hydra::Event::StepFinished;
+our @ISA = qw(Exporter);
+our @EXPORT = qw(
+    parse_payload
+);
+
+my %channels_to_events = (
+  build_started => \&Hydra::Event::BuildStarted::parse,
+  step_finished => \&Hydra::Event::StepFinished::parse,
+  build_finished => \&Hydra::Event::BuildFinished::parse,
+);
+
+
+sub parse_payload :prototype($$) {
+    my ($channel_name, $payload) = @_;
+    my @payload = split /\t/, $payload;
+
+    my $parser = %channels_to_events{$channel_name};
+    unless (defined $parser) {
+      die "Invalid channel name: '$channel_name'";
+    }
+
+    return $parser->(@payload);
+}