Class: Restis::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/restis/client.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ Client 



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# File 'lib/restis/client.rb', line 5

def initialize(args = {})
  @args = args
  @redis = Redis.new(@args)
end

Instance Attribute Details

#redis ⇒ Object

Returns the value of attribute redis.



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# File 'lib/restis/client.rb', line 4

def redis
  @redis
end

Instance Method Details

#publish(channel, message) ⇒ Object 



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# File 'lib/restis/client.rb', line 10

def publish(channel, message)
  @redis.rpush("#{channel}:backlog", message)
  @redis.publish(channel, message)
end

#subscribe(channel, key, &block) ⇒ Object 



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# File 'lib/restis/client.rb', line 15

def subscribe(channel, key, &block)
  loop do
    last_read_msg = @redis.get(key)
    queue_size = @redis.llen("#{channel}:backlog")
    messages = @redis.lrange("#{channel}:backlog", last_read_msg, queue_size)
    break if messages.empty?
    messages.each do |msg|
      block.call(@redis, channel, msg)
      @redis.incr(key)
    end
    @redis.set(key, queue_size)
  end
  redis = Redis.new(:timeout => 0)
  redis.subscribe(channel) do |on|
    on.message do |channel, msg|
      block.call(redis, channel, msg)
      Redis.new(@args).incr(key)
    end
  end
end