Class: Pvectl::Commands::Get::Handlers::Capabilities

Inherits:
Object
  • Object
show all
Includes:
ResourceHandler
Defined in:
lib/pvectl/commands/get/handlers/capabilities.rb,
sig/pvectl/commands/get/handlers/capabilities.rbs

Overview

Handler for pvectl get node-capabilities.

Surfaces what features a node supports — primarily the available QEMU CPU models and machine types. When --node is provided the query is scoped to that node; otherwise the handler iterates all online nodes and aggregates the results, silently skipping unreachable nodes (matches the pattern used by the time handler).

See Also:

Instance Method Summary collapse

Methods included from ResourceHandler

#selector_class

Constructor Details

#initialize(repository: nil, node_repository: nil) ⇒ Capabilities

Returns a new instance of Capabilities.

Parameters:



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# File 'lib/pvectl/commands/get/handlers/capabilities.rb', line 23

def initialize(repository: nil, node_repository: nil)
  @repository = repository
  @node_repository = node_repository
end

Instance Method Details

#connection ⇒ Pvectl::Connection

Builds API connection from the current config.

Returns:



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# File 'lib/pvectl/commands/get/handlers/capabilities.rb', line 89

def connection
  @connection ||= begin
    config_service = Pvectl::Config::Service.new
    config_service.load
    Pvectl::Connection.new(config_service.current_config)
  end
end

#fetch_for(node_name) ⇒ Array<Models::Capability>

Fetches capabilities for a specific node, raising when the node itself does not exist in the cluster.

Parameters:

  • node_name (String)

Returns:

Raises:



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# File 'lib/pvectl/commands/get/handlers/capabilities.rb', line 61

def fetch_for(node_name)
  unless node_repository.get(node_name)
    raise Pvectl::ResourceNotFoundError, "Node not found: #{node_name}"
  end

  repository.list(node: node_name)
end

#list(node: nil, name: nil, args: [], storage: nil, **_options) ⇒ Array<Models::Capability>

Lists capabilities, optionally scoped to a node.

Parameters:

  • node (String, nil) (defaults to: nil) —

    when provided, only that node is queried

  • name (String, nil) (defaults to: nil) —

    unused, interface compatibility

  • args (Array<String>) (defaults to: []) —

    unused, interface compatibility

  • storage (String, nil) (defaults to: nil) —

    unused, interface compatibility

  • node: (String, nil) (defaults to: nil)
  • name: (String, nil) (defaults to: nil)
  • args: (Array[String]) (defaults to: [])
  • storage: (String, nil) (defaults to: nil)

Returns:

Raises:



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# File 'lib/pvectl/commands/get/handlers/capabilities.rb', line 36

def list(node: nil, name: nil, args: [], storage: nil, **_options)
  return fetch_for(node) if node

  online_node_names.flat_map do |node_name|
    repository.list(node: node_name)
  rescue StandardError
    []
  end
end

#node_repository ⇒ Repositories::Node

Returns:



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# File 'lib/pvectl/commands/get/handlers/capabilities.rb', line 82

def node_repository
  @node_repository ||= Pvectl::Repositories::Node.new(connection)
end

#online_node_names ⇒ Array<String>

Names of online nodes.

Returns:

  • (Array<String>) 


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# File 'lib/pvectl/commands/get/handlers/capabilities.rb', line 72

def online_node_names
  node_repository.list.select { |n| n.status == "online" }.map(&:name)
end

#presenter ⇒ Presenters::Capability

Returns the capability presenter.

Returns:



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# File 'lib/pvectl/commands/get/handlers/capabilities.rb', line 49

def presenter
  Pvectl::Presenters::Capability.new
end

#repository ⇒ Repositories::Capabilities

Returns:



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# File 'lib/pvectl/commands/get/handlers/capabilities.rb', line 77

def repository
  @repository ||= Pvectl::Repositories::Capabilities.new(connection)
end