converting logger and custom examples to new syntax

examples/custom-watcher.rb

 #!/usr/bin/env ruby
 require './watcher-idea.rb'
 
-f = Noah::Watcher.new do |f|
-  f.pattern = "noah.Configuration*"
-  f.destination = Proc.new {|x| puts x}
+Noah::Watcher.watch do
+  pattern "noah.Configuration*"
+  destination Proc.new {|x| puts x}
+  run!
 end
-f.run!

examples/logger.rb

 #!/usr/bin/env ruby
-$:.unshift(File.expand_path(File.join(File.dirname(__FILE__), "..", "lib")))
-require 'rubygems'
-require 'eventmachine'
-require 'em-hiredis'
+require './watcher-idea.rb'
 require 'logger'
 
 log = Logger.new(STDOUT)
 
-EventMachine.run do
-
-  # Passing messages...like a boss
-  @channel = EventMachine::Channel.new
-
-  r = EventMachine::Hiredis::Client.connect
-  r.psubscribe("noah.*")
-  r.on(:pmessage) do |pattern, event, message|
-    @channel.push "#{message}"
-  end
-
-  sub = @channel.subscribe { |msg|
-    log.debug("#{msg}")
-  }
+Noah::Watcher.watch do
+  pattern "noah.Application*"
+  destination Proc.new {|x| log.debug(x)}
+  run!
 end

examples/watcher-idea.rb

 require 'rubygems'
+require 'logger'
 require 'eventmachine'
 require 'em-hiredis'
 
+
 module Noah
   class Watcher
-    attr_accessor :pattern, :destination
+    attr_accessor :my_pattern, :my_destination
   
-    def initialize(&blk)
-      @pattern ||= "noah.*"
-      @destination ||= nil
-      yield(self) if block_given?
+    def self.watch(&blk)
+      watcher = Noah::Watcher.new
+      watcher.instance_eval(&blk)
+      watcher
+    end
+
+    def pattern(pattern)
+      @my_pattern = pattern
+    end
+
+    def destination(destination)
+      @my_destination = destination
     end
 
     def run!
-      @destination.nil? ? (puts "Can't run without a destination") : run_watcher(@destination)
+      @my_destination.nil? ? (puts "Can't run without a destination") : run_watcher(@my_destination)
     end
 
     private
     def run_watcher(dest)
+      watcher_log = Logger.new(STDOUT)
       EventMachine.run do
+        watcher_log.info("Starting Noah Watcher...")
+        watcher_log.info("Filtering on messages: #{@my_pattern}")
         channel = EventMachine::Channel.new
 
         r = EventMachine::Hiredis::Client.connect
-        r.psubscribe(@pattern)
+        r.psubscribe(@my_pattern)
         r.on(:pmessage) do |pattern, event, message|
           channel.push "#{message}"
         end