Class: Puppet::Type::RelationshipMetaparam

Inherits:
Parameter show all
Defined in:
lib/puppet/type.rb

Overview

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

Constant Summary

Constants included from Util::Docs

Util::Docs::HEADER_LEVELS

Constants included from Util

Util::AbsolutePathPosix, Util::AbsolutePathWindows, Util::DEFAULT_POSIX_MODE, Util::DEFAULT_WINDOWS_MODE, Util::RFC_3986_URI_REGEX

Constants included from Util::SymbolicFileMode

Util::SymbolicFileMode::SetGIDBit, Util::SymbolicFileMode::SetUIDBit, Util::SymbolicFileMode::StickyBit, Util::SymbolicFileMode::SymbolicMode, Util::SymbolicFileMode::SymbolicSpecialToBit

Constants included from Util::POSIX

Util::POSIX::LOCALE_ENV_VARS, Util::POSIX::USER_ENV_VARS

Class Attribute Summary collapse

Attributes inherited from Parameter

#name, #parent, #resource, #sensitive

Attributes included from Util::Docs

#doc, #nodoc

Class Method Summary collapse

Instance Method Summary collapse

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::SymbolicFileMode

#normalize_symbolic_mode, #symbolic_mode_to_int, #valid_symbolic_mode?

Methods included from Util::POSIX

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

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

.callbackObject


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# File 'lib/puppet/type.rb', line 1507

def callback
  @callback
end

.directionObject


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# File 'lib/puppet/type.rb', line 1507

def direction
  @direction
end

.eventsObject


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# File 'lib/puppet/type.rb', line 1507

def events
  @events
end

.subclassesObject


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# File 'lib/puppet/type.rb', line 1507

def subclasses
  @subclasses
end

Class Method Details

.inherited(sub) ⇒ Object


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# File 'lib/puppet/type.rb', line 1512

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

Instance Method Details

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

Returns turns attribute values into list of resources


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# File 'lib/puppet/type.rb', line 1517

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_edgesArray<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.

Raises:

  • (???fail)

    when a reference can not be resolved


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# File 'lib/puppet/type.rb', line 1555

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

    # Either of the two retrieval attempts could have returned
    # nil.
    related_resource = reference.resolve
    unless related_resource
      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

    method = self.class.callback
    if method
      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_relationshipvoid

This method returns an undefined value.

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

Raises:

  • (???fail)

    if the referenced resource can not be found


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# File 'lib/puppet/type.rb', line 1532

def validate_relationship
  @value.each do |ref|
    unless @resource.catalog.resource(ref.to_s)
      description = self.class.direction == :in ? "dependency" : "dependent"
      fail ResourceError, _("Could not find %{description} %{ref} for %{resource}") %
          { description: description, ref: ref, resource: resource.ref }
    end
  end
end