Class: Ribbon::Intercom::Service::Channel::Stores::RedisStore

Inherits:
Store
  • Object
show all
Defined in:
lib/ribbon/intercom/service/channel/stores/redis_store.rb

Defined Under Namespace

Classes: Mutex

Instance Method Summary collapse

Methods inherited from Store

#healthy?, #open_channel

Constructor Details

#initialize(params = {}) ⇒ RedisStore

Returns a new instance of RedisStore.



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# File 'lib/ribbon/intercom/service/channel/stores/redis_store.rb', line 9

def initialize(params={})
  if params[:url]
    @_redis = Redis.new(url: params[:url])
  elsif params[:redis]
    @_redis = params[:redis]
  else
    raise Errors::InvalidStoreParamsError
  end
end

Instance Method Details

#delete(channel) ⇒ Object

Raises:



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# File 'lib/ribbon/intercom/service/channel/stores/redis_store.rb', line 58

def delete(channel)
  raise Errors::InvalidChannelError, channel.inspect unless channel.is_a?(Channel)

  @_redis.del(_key_name(channel))
  @_redis.del(_key_name(channel, 'permissions'))
  nil
end

#lookup_channel(token) ⇒ Object 



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# File 'lib/ribbon/intercom/service/channel/stores/redis_store.rb', line 23

def lookup_channel(token)
  if (data=_load_data(token))
    Channel.new(self, data)
  end
end

#persist(channel) ⇒ Object

Raises:



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# File 'lib/ribbon/intercom/service/channel/stores/redis_store.rb', line 29

def persist(channel)
  raise Errors::InvalidChannelError, channel.inspect unless channel.is_a?(Channel)

  channel.tap { |channel|
    data_hash = {}
    [:name, :token, :secret_hash_crt, :secret_hash_prv].each { |key|
      value = channel.send(key)
      data_hash[key] = value if value
    }

    # Save channel data as hash
    @_redis.mapped_hmset(_key_name(channel), data_hash)

    # Associate permissions set to its channel
    channel.permissions.each { |p|
      @_redis.sadd(_key_name(channel, 'permissions'), p)
    }

    # Save signing keys
    key_hash = Hash[
      channel.signing_keys.map { |key_id, data|
        [key_id, Base64.strict_encode64(Marshal.dump(data))]
      }
    ]

    @_redis.mapped_hmset(_key_name(channel, 'signing_keys'), key_hash) unless key_hash.empty?
  }
end

#token_exists?(token) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ribbon/intercom/service/channel/stores/redis_store.rb', line 19

def token_exists?(token)
  @_redis.exists("channel:#{token}")
end

#with_lock(channel, ttl = 1000) ⇒ Object 



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# File 'lib/ribbon/intercom/service/channel/stores/redis_store.rb', line 66

def with_lock(channel, ttl=1000)
  Mutex.new(@_redis, _key_name(channel, 'lock')).synchronize(ttl) { |validity|
    start_time = Mutex.time_in_ms
    channel.refresh(_load_data(channel.token))
    yield validity - (Mutex.time_in_ms - start_time)
  }
end