Class: Puppet::Type::RelationshipMetaparam

Inherits:

Object
Parameter
Puppet::Type::RelationshipMetaparam

Defined in:: lib/puppet/type.rb

Overview

RelationshipMetaparam is an implementation supporting the meta-parameters ‘:require`, `:subscribe`, `:notify`, and `:before`.

Constant Summary

Class Attribute Summary collapse

.callback ⇒ Object

Returns the value of attribute callback.
.direction ⇒ Object

Returns the value of attribute direction.
.events ⇒ Object

Returns the value of attribute events.
.subclasses ⇒ Object

Returns the value of attribute subclasses.

Attributes inherited from Parameter

#name, #parent, #resource, #sensitive

Attributes included from Util::Docs

#doc, #nodoc

Class Method Summary collapse

.inherited(sub) ⇒ Object

Instance Method Summary collapse

#munge(references) ⇒ Array<Puppet::Resource>

Turns attribute values into list of resources.
#to_edges ⇒ Array<Puppet::Relationship>

Creates edges for all relationships.
#validate_relationship ⇒ void

Checks each reference to assert that what it references exists in the catalog.

Methods inherited from Parameter

aliasvalue, defaultto, desc, doc, #file, #format, format_value_for_display, #initialize, initvars, isnamevar, #isnamevar?, isnamevar?, isrequired, #line, #log, #metaparam?, munge, newvalues, nodefault, #noop, #path, #pathbuilder, #provider, proxymethods, #remove, #required?, required?, sensitive, #tags, #to_s, unmunge, #unmunge, #unsafe_munge, #unsafe_validate, validate, #validate, #value, #value=, #version

Methods included from Util::Docs

#desc, #dochook, #doctable, #markdown_definitionlist, #markdown_header, #nodoc?, #pad, scrub

Methods included from Util

absolute_path?, benchmark, chuser, clear_environment, default_env, deterministic_rand, deterministic_rand_int, exit_on_fail, get_env, get_environment, logmethods, merge_environment, path_to_uri, pretty_backtrace, replace_file, safe_posix_fork, set_env, symbolizehash, thinmark, uri_encode, uri_query_encode, uri_to_path, which, withenv, withumask

Methods included from Util::POSIX

#get_posix_field, #gid, groups_of, #idfield, #methodbyid, #methodbyname, #search_posix_field, #uid

Methods included from Util::SymbolicFileMode

#normalize_symbolic_mode, #symbolic_mode_to_int, #valid_symbolic_mode?

Methods included from Util::Logging

#clear_deprecation_warnings, #debug, #deprecation_warning, #format_exception, #get_deprecation_offender, #log_and_raise, #log_deprecations_to_file, #log_exception, #puppet_deprecation_warning, #send_log, setup_facter_logging!, #warn_once

Methods included from Util::Errors

#adderrorcontext, #devfail, #error_context, error_location, error_location_with_space, error_location_with_unknowns, #exceptwrap, #fail

Constructor Details

This class inherits a constructor from Puppet::Parameter

Class Attribute Details

.callback ⇒ `Object`

Returns the value of attribute callback.



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# File 'lib/puppet/type.rb', line 1475

def callback
  @callback
end

.direction ⇒ `Object`

Returns the value of attribute direction.



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# File 'lib/puppet/type.rb', line 1475

def direction
  @direction
end

.events ⇒ `Object`

Returns the value of attribute events.



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# File 'lib/puppet/type.rb', line 1475

def events
  @events
end

.subclasses ⇒ `Object`

Returns the value of attribute subclasses.



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# File 'lib/puppet/type.rb', line 1475

def subclasses
  @subclasses
end

Class Method Details

.inherited(sub) ⇒ `Object`



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# File 'lib/puppet/type.rb', line 1480

def self.inherited(sub)
  @subclasses << sub
end

Instance Method Details

#munge(references) ⇒ `Array<Puppet::Resource>`

Returns turns attribute values into list of resources.

Returns:

(Array<Puppet::Resource>) —

turns attribute values into list of resources

# File 'lib/puppet/type.rb', line 1485

def munge(references)
  references = [references] unless references.is_a?(Array)
  references.collect do |ref|
    if ref.is_a?(Puppet::Resource)
      ref
    else
      Puppet::Resource.new(ref)
    end
  end
end

#to_edges ⇒ `Array<Puppet::Relationship>`

TODO:

references to “event-receivers” and “event generator” means in this context - are those just the resources at the two ends of the relationship?

Creates edges for all relationships. The ‘:in` relationships are specified by the event-receivers, and `:out` relationships are specified by the event generator. This way ’source’ and ‘target’ are consistent terms in both edges and events, i.e. an event targets edges whose source matches the event’s source. The direction of the relationship determines which resource is applied first and which resource is considered to be the event generator.

Returns:

(Array<Puppet::Relationship>)

Raises:

(???fail) —

when a reference can not be resolved

# File 'lib/puppet/type.rb', line 1523

def to_edges
  @value.collect do |reference|
    reference.catalog = resource.catalog

    # Either of the two retrieval attempts could have returned
    # nil.
    unless related_resource = reference.resolve
      self.fail "Could not retrieve dependency '#{reference}' of #{@resource.ref}"
    end

    # Are we requiring them, or vice versa?  See the method docs
    # for further info on this.
    if self.class.direction == :in
      source = related_resource
      target = @resource
    else
      source = @resource
      target = related_resource
    end

    if method = self.class.callback
      subargs = {
        :event => self.class.events,
        :callback => method
      }
    else
      # If there's no callback, there's no point in even adding
      # a label.
      subargs = nil
    end

    ## Corrected syntax of debug statement to reflect the way this was called.
    # i.e. before, after, subscribe, notify
    self.debug do
      relation = case self.class.name
      when "subscribe"
        "subscribes"
      when "notify"
        "notifies"
      else
        self.class.name
      end

      "#{relation} to #{related_resource.ref}"
    end

    Puppet::Relationship.new(source, target, subargs)
  end
end

#validate_relationship ⇒ `void`

This method returns an undefined value.

Checks each reference to assert that what it references exists in the catalog.