Class: Estore::Connection

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/estore/connection.rb,
lib/estore/connection/buffer.rb,
lib/estore/connection/protocol.rb

Overview

Mapping between command names and codes From github.com/EventStore/EventStore/blob/master/src/EventStore.ClientAPI/SystemData/TcpCommand.cs

Defined Under Namespace

Classes: Buffer

Constant Summary collapse

COMMANDS = 
{
  'HeartbeatRequestCommand'.freeze => 0x01,
  'HeartbeatResponseCommand'.freeze => 0x02,

  'Ping'.freeze => 0x03,
  'Pong'.freeze => 0x04,

  'PrepareAck'.freeze => 0x05,
  'CommitAck'.freeze => 0x06,

  'SlaveAssignment'.freeze => 0x07,
  'CloneAssignment'.freeze => 0x08,

  'SubscribeReplica'.freeze => 0x10,
  'ReplicaLogPositionAck'.freeze => 0x11,
  'CreateChunk'.freeze => 0x12,
  'RawChunkBulk'.freeze => 0x13,
  'DataChunkBulk'.freeze => 0x14,
  'ReplicaSubscriptionRetry'.freeze => 0x15,
  'ReplicaSubscribed'.freeze => 0x16,

  # "CLIENT COMMANDS
  # "CreateStream".freeze => 0x80,
  # "CreateStreamCompleted".freeze => 0x81,

  'WriteEvents'.freeze => 0x82,
  'WriteEventsCompleted'.freeze => 0x83,

  'TransactionStart'.freeze => 0x84,
  'TransactionStartCompleted'.freeze => 0x85,
  'TransactionWrite'.freeze => 0x86,
  'TransactionWriteCompleted'.freeze => 0x87,
  'TransactionCommit'.freeze => 0x88,
  'TransactionCommitCompleted'.freeze => 0x89,

  'DeleteStream'.freeze => 0x8A,
  'DeleteStreamCompleted'.freeze => 0x8B,

  'ReadEvent'.freeze => 0xB0,
  'ReadEventCompleted'.freeze => 0xB1,
  'ReadStreamEventsForward'.freeze => 0xB2,
  'ReadStreamEventsForwardCompleted'.freeze => 0xB3,
  'ReadStreamEventsBackward'.freeze => 0xB4,
  'ReadStreamEventsBackwardCompleted'.freeze => 0xB5,
  'ReadAllEventsForward'.freeze => 0xB6,
  'ReadAllEventsForwardCompleted'.freeze => 0xB7,
  'ReadAllEventsBackward'.freeze => 0xB8,
  'ReadAllEventsBackwardCompleted'.freeze => 0xB9,

  'SubscribeToStream'.freeze => 0xC0,
  'SubscriptionConfirmation'.freeze => 0xC1,
  'StreamEventAppeared'.freeze => 0xC2,
  'UnsubscribeFromStream'.freeze => 0xC3,
  'SubscriptionDropped'.freeze => 0xC4,
  'ConnectToPersistentSubscription'.freeze => 0xC5,
  'PersistentSubscriptionConfirmation'.freeze => 0xC6,
  'PersistentSubscriptionStreamEventAppeared'.freeze => 0xC7,
  'CreatePersistentSubscription'.freeze => 0xC8,
  'CreatePersistentSubscriptionCompleted'.freeze => 0xC9,
  'DeletePersistentSubscription'.freeze => 0xCA,
  'DeletePersistentSubscriptionCompleted'.freeze => 0xCB,
  'PersistentSubscriptionAckEvents'.freeze => 0xCC,
  'PersistentSubscriptionNakEvents'.freeze => 0xCD,
  'UpdatePersistentSubscription'.freeze => 0xCE,
  'UpdatePersistentSubscriptionCompleted'.freeze => 0xCF,

  'ScavengeDatabase'.freeze => 0xD0,
  'ScavengeDatabaseCompleted'.freeze => 0xD1,

  'BadRequest'.freeze => 0xF0,
  'NotHandled'.freeze => 0xF1,
  'Authenticate'.freeze => 0xF2,
  'Authenticated'.freeze => 0xF3,
  'NotAuthenticated'.freeze => 0xF4
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(host, port) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/estore/connection.rb', line 11

def initialize(host, port)
  @host = host
  @port = Integer(port)
  @context = ConnectionContext.new
  @buffer = Buffer.new(&method(:on_received_package))
  @mutex = Mutex.new
end

Instance Attribute Details

#host ⇒ Object (readonly)

Returns the value of attribute host.



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# File 'lib/estore/connection.rb', line 8

def host
  @host
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



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# File 'lib/estore/connection.rb', line 8

def port
  @port
end

Class Method Details

.command_name(code) ⇒ Object 



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# File 'lib/estore/connection/protocol.rb', line 81

def self.command_name(code)
  @names ||= reverse_lookup_table
  @names.fetch(code)
end

.reverse_lookup_table ⇒ Object 



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# File 'lib/estore/connection/protocol.rb', line 86

def self.reverse_lookup_table
  COMMANDS.inject({}) { |h, (k, v)| h.merge!(v => k) }
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/estore/connection.rb', line 19

def close
  @terminating = true
  socket.close
end

#write(uuid, command, msg = nil) ⇒ Object 



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# File 'lib/estore/connection.rb', line 24

def write(uuid, command, msg = nil)
  msg.validate! if msg

  code = COMMANDS.fetch(command)
  frame = Package.encode(code, uuid, msg)

  @mutex.synchronize do
    socket.write(frame.to_s)
  end
end