PHP Class Disque\Connection\Manager

Inheritance: implements Disque\Connection\ManagerInterface

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Protected Properties

Property	Type	Description
$credentials	Disque\Connection\Credentials[]	After connecting to one, the server returns a list of other nodes in the cluster so we can connect to them automatically, unless the discovered nodes are secured with a password. 'serverAddress' => Credentials
$nodeId	string	The ID of the node we are currently connected to
$nodePrefixes	array	Node prefix consists of the first 8 bytes from the node ID. Because job IDs contain the node prefix, it can be used to identify on which node a job lives. 'nodePrefix' => 'nodeId'
$nodes	Disque\Connection\Node\Node[]	'nodeId' => Node
$priorityStrategy	Disque\Connection\Node\NodePrioritizerInterface	The default strategy is the ConservativeJobCountPrioritizer. It prioritizes nodes by their job count, but prefers the current node in order to avoid switching until there is a clearly better node.

Public Methods

Method	Description
__construct ( )
addServer ( Disque\Connection\Credentials $credentials )
connect ( )
execute ( Disque\Command\CommandInterface $command )
getConnectionFactory ( )
getCredentials ( )
getCurrentNode ( )
getPriorityStrategy ( )
isConnected ( )
setConnectionFactory ( Disque\Connection\Factory\ConnectionFactoryInterface $connectionFactory )
setPriorityStrategy ( Disque\Connection\Node\NodePrioritizerInterface $priorityStrategy )

Protected Methods

Method	Description
findAvailableConnection ( ) : Node	Get a functional connection to any known node
getNodeConnection ( Disque\Connection\Credentials $server ) : Node	Connect to the node given in the credentials
postprocessExecution ( Disque\Command\CommandInterface $command, mixed $response ) : mixed	Postprocess the command execution, eg. update node stats
preprocessExecution ( Disque\Command\CommandInterface $command ) : Disque\Command\CommandInterface	Hook into the command execution and do anything before it's executed
resetNodeCounters ( )	Reset node counters that should be reset upon node switch
updateNodeStats ( array $jobs )	Update node counters indicating how many jobs the node has produced

Private Methods

Method	Description
copyNodeStats ( Node $oldNode, Node $newNode )	Copy node stats from the old to the new node
createNode ( Disque\Connection\Credentials $credentials ) : Node	Create a new Node object
getNodeIdFromJobId ( string $jobId ) : string \| null	Get a node ID based off a Job ID
getNodePrefixFromJobId ( string $jobId ) : string	Get the node prefix from the job ID
revealClusterFromHello ( Node $node )	Reveal the whole Disque cluster from a node HELLO response
revealNodeFromHello ( string $nodeId, array $node ) : Node	Reveal a single node from a HELLO response, or use an existing node
shouldBeConnected ( ) : void	We should be connected
switchNodeIfNeeded ( )	Decide if we should switch to a better node
switchToNode ( Node $node )	Switch to the given node and map the cluster from its HELLO
wasAlreadyConnected ( ) : boolean	Check if the manager held a connection to Disque already

Method Details

__construct() public method

public __construct ( )

addServer() public method

public addServer ( Disque\Connection\Credentials $credentials )
$credentials	Disque\Connection\Credentials

connect() public method

public connect ( )

execute() public method

public execute ( Disque\Command\CommandInterface $command )
$command	Disque\Command\CommandInterface

findAvailableConnection() protected method

Disque suggests the first connection should be chosen randomly We go through the user-supplied credentials randomly and try to connect.

protected findAvailableConnection ( ) : Node
return	Disque\Connection\Node\Node	A connected node

getConnectionFactory() public method

public getConnectionFactory ( )

getCredentials() public method

public getCredentials ( )

getCurrentNode() public method

public getCurrentNode ( )

getNodeConnection() protected method

Connect to the node given in the credentials

protected getNodeConnection ( Disque\Connection\Credentials $server ) : Node
$server	Disque\Connection\Credentials
return	Disque\Connection\Node\Node	A connected node

getPriorityStrategy() public method

public getPriorityStrategy ( )

isConnected() public method

public isConnected ( )

postprocessExecution() protected method

Postprocess the command execution, eg. update node stats

protected postprocessExecution ( Disque\Command\CommandInterface $command, mixed $response ) : mixed
$command	Disque\Command\CommandInterface
$response	mixed
return	mixed

preprocessExecution() protected method

Eg. start measuring node latency etc.

protected preprocessExecution ( Disque\Command\CommandInterface $command ) : Disque\Command\CommandInterface
$command	Disque\Command\CommandInterface
return	Disque\Command\CommandInterface	$command

resetNodeCounters() protected method

Reset node counters that should be reset upon node switch

protected resetNodeCounters ( )

setConnectionFactory() public method

public setConnectionFactory ( Disque\Connection\Factory\ConnectionFactoryInterface $connectionFactory )
$connectionFactory	Disque\Connection\Factory\ConnectionFactoryInterface

setPriorityStrategy() public method

public setPriorityStrategy ( Disque\Connection\Node\NodePrioritizerInterface $priorityStrategy )
$priorityStrategy	Disque\Connection\Node\NodePrioritizerInterface

updateNodeStats() protected method

Update node counters indicating how many jobs the node has produced

protected updateNodeStats ( array $jobs )
$jobs	array	Jobs

Property Details

$credentials protected_oe property

After connecting to one, the server returns a list of other nodes in the cluster so we can connect to them automatically, unless the discovered nodes are secured with a password. 'serverAddress' => Credentials

protected Credentials[],Disque\Connection $credentials
return	Disque\Connection\Credentials[]

$nodeId protected_oe property

The ID of the node we are currently connected to

protected string $nodeId
return	string

$nodePrefixes protected_oe property

Node prefix consists of the first 8 bytes from the node ID. Because job IDs contain the node prefix, it can be used to identify on which node a job lives. 'nodePrefix' => 'nodeId'

protected array $nodePrefixes
return	array

$nodes protected_oe property

'nodeId' => Node

protected Node[],Disque\Connection\Node $nodes
return	Disque\Connection\Node\Node[]

$priorityStrategy protected_oe property

The default strategy is the ConservativeJobCountPrioritizer. It prioritizes nodes by their job count, but prefers the current node in order to avoid switching until there is a clearly better node.

protected NodePrioritizerInterface,Disque\Connection\Node $priorityStrategy
return	Disque\Connection\Node\NodePrioritizerInterface