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restarts.rb implements a new method Kernel#raise_condition which is similar to Kernel#raise for throwing exceptions, with the added feature of adding "restarts" next to the place where the exception is thrown so that they can be invoked from the exception handler somewhere higher up in the stack.

An enhanced state machine gem for ruby (doesn't require Rails). Provides more robust DSL state declaration syntax than other state machines. Multiple "actions" per event (i.e., next state, labmda, or a "decider".

For all applications (you are not a mouseclicker, are u?), once in a while you need to supply some configuration values to overrule the built-in defaults. The app-ctx gem does unify and organize built-in constants, config files and commandline option with a clearly defined priority, from low to high: - procedural: set from your implementation App::Config#set_default_values - YAML default values file loaded from next to the $0 script - user supplied configuration file, eg.: --config=/tmp/foo.yml - command line options and flags: --foo --bar=foo But for your application it is of no interesst from where the values are coming: command line option: "--port=1234", a user configuration file or from the applications built-in default values. Therefor +app-ctx+ combines value settings from various sources into a single configuration hash.

# Sparrow is a really fast lightweight queue written in Ruby that speaks memcached. # That means you can use Sparrow with any memcached client library (Ruby or otherwise). # # Basic tests shows that Sparrow processes messages at a rate of 850-900 per second. # The load Sparrow can cope with increases exponentially as you add to the cluster. # Sparrow also takes advantage of eventmachine, which uses a non-blocking io, offering great performance. # # Sparrow is a in-memory queue but will persist the data to disk when receiving a term signal. # # Sparrow comes with built in support for daemonization and clustering. # Also included are example libraries and clients. For example: # # require 'memcache' # m = MemCache.new('127.0.0.1:11212') # m['queue_name'] = '1' # Publish to queue # m['queue_name'] #=> 1 Pull next msg from queue # m['queue_name'] #=> nil # m.delete('queue_name) # Delete queue # # # or using the included client: # # class MyQueue < MQ3::Queue # def on_message # logger.info "Received msg with args: #{args.inspect}" # end # end # # MyQueue.servers = [ # MQ3::Protocols::Memcache.new({:host => '127.0.0.1', :port => 11212, :weight => 1}) # ] # MyQueue.publish('test msg') # MyQueue.run # # Messages are deleted as soon as they're read and the order you add messages to the queue probably won't # be the same order when they're removed. # # Additional memcached commands that are supported are: # flush_all # Deletes all queues # version # quit # The memcached commands 'add', and 'replace' just call 'set'. # # Call sparrow with --help for usage options # # The daemonization won't work on Windows. # # Check out the code: # svn checkout http://sparrow.googlecode.com/svn/trunk/ sparrow # # Sparrow was inspired by Twitter's Starling

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