Class: RedisClient::Cluster::Pipeline

Inherits:
Object
  • Object
show all
Defined in:
lib/redis_client/cluster/pipeline.rb

Defined Under Namespace

Classes: Extended, RedirectionNeeded

Constant Summary collapse

ReplySizeError = 
Class.new(::RedisClient::Error)

Instance Method Summary collapse

Constructor Details

#initialize(router, command_builder, concurrent_worker, seed: Random.new_seed) ⇒ Pipeline

Returns a new instance of Pipeline.



101
102
103
104
105
106
107
108
 
# File 'lib/redis_client/cluster/pipeline.rb', line 101

def initialize(router, command_builder, concurrent_worker, seed: Random.new_seed)
  @router = router
  @command_builder = command_builder
  @concurrent_worker = concurrent_worker
  @seed = seed
  @pipelines = nil
  @size = 0
end

Instance Method Details

#blocking_call(timeout, *args, **kwargs, &block) ⇒ Object 



134
135
136
137
138
 
# File 'lib/redis_client/cluster/pipeline.rb', line 134

def blocking_call(timeout, *args, **kwargs, &block)
  command = @command_builder.generate(args, kwargs)
  node_key = @router.find_node_key(command, seed: @seed)
  append_pipeline(node_key).blocking_call_v(timeout, command, &block)
end

#blocking_call_v(timeout, args, &block) ⇒ Object 



140
141
142
143
144
 
# File 'lib/redis_client/cluster/pipeline.rb', line 140

def blocking_call_v(timeout, args, &block)
  command = @command_builder.generate(args)
  node_key = @router.find_node_key(command, seed: @seed)
  append_pipeline(node_key).blocking_call_v(timeout, command, &block)
end

#call(*args, **kwargs, &block) ⇒ Object 



110
111
112
113
114
 
# File 'lib/redis_client/cluster/pipeline.rb', line 110

def call(*args, **kwargs, &block)
  command = @command_builder.generate(args, kwargs)
  node_key = @router.find_node_key(command, seed: @seed)
  append_pipeline(node_key).call_v(command, &block)
end

#call_once(*args, **kwargs, &block) ⇒ Object 



122
123
124
125
126
 
# File 'lib/redis_client/cluster/pipeline.rb', line 122

def call_once(*args, **kwargs, &block)
  command = @command_builder.generate(args, kwargs)
  node_key = @router.find_node_key(command, seed: @seed)
  append_pipeline(node_key).call_once_v(command, &block)
end

#call_once_v(args, &block) ⇒ Object 



128
129
130
131
132
 
# File 'lib/redis_client/cluster/pipeline.rb', line 128

def call_once_v(args, &block)
  command = @command_builder.generate(args)
  node_key = @router.find_node_key(command, seed: @seed)
  append_pipeline(node_key).call_once_v(command, &block)
end

#call_v(args, &block) ⇒ Object 



116
117
118
119
120
 
# File 'lib/redis_client/cluster/pipeline.rb', line 116

def call_v(args, &block)
  command = @command_builder.generate(args)
  node_key = @router.find_node_key(command, seed: @seed)
  append_pipeline(node_key).call_v(command, &block)
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


146
147
148
 
# File 'lib/redis_client/cluster/pipeline.rb', line 146

def empty?
  @size.zero?
end

#execute ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity

Raises:



150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
 
# File 'lib/redis_client/cluster/pipeline.rb', line 150

def execute # rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity
  return if @pipelines.nil? || @pipelines.empty?

  work_group = @concurrent_worker.new_group(size: @pipelines.size)

  @pipelines.each do |node_key, pipeline|
    work_group.push(node_key, @router.find_node(node_key), pipeline) do |cli, pl|
      replies = do_pipelining(cli, pl)
      raise ReplySizeError, "commands: #{pl._size}, replies: #{replies.size}" if pl._size != replies.size

      replies
    end
  end

  all_replies = errors = required_redirections = nil

  work_group.each do |node_key, v|
    case v
    when ::RedisClient::Cluster::Pipeline::RedirectionNeeded
      required_redirections ||= {}
      required_redirections[node_key] = v
    when StandardError
      errors ||= {}
      errors[node_key] = v
    else
      all_replies ||= Array.new(@size)
      @pipelines[node_key].outer_indices.each_with_index { |outer, inner| all_replies[outer] = v[inner] }
    end
  end

  work_group.close
  raise ::RedisClient::Cluster::ErrorCollection, errors unless errors.nil?

  required_redirections&.each do |node_key, v|
    all_replies ||= Array.new(@size)
    pipeline = @pipelines[node_key]
    v.indices.each { |i| v.replies[i] = handle_redirection(v.replies[i], pipeline, i) }
    pipeline.outer_indices.each_with_index { |outer, inner| all_replies[outer] = v.replies[inner] }
  end

  all_replies
end