Class: Puppet::Type

Inherits:
Object show all
Extended by:
Enumerable, CompilableResourceType, MetaType::Manager, Util, Util::ClassGen, Util::Logging, Util::ProviderFeatures, Util::Warnings
Includes:
Comparable, Enumerable, Util, Util::Errors, Util::Logging, Util::Tagging
Defined in:
lib/puppet/type.rb

Defined Under Namespace

Classes: RelationshipMetaparam

Constant Summary

Constants included from Util

Util::ALNUM, Util::ALPHA, Util::AbsolutePathPosix, Util::AbsolutePathWindows, Util::DEFAULT_POSIX_MODE, Util::DEFAULT_WINDOWS_MODE, Util::ESCAPED, Util::HEX, Util::HttpProxy, Util::PUPPET_STACK_INSERTION_FRAME, Util::RESERVED, Util::RFC_3986_URI_REGEX, Util::UNRESERVED, Util::UNSAFE

Constants included from Util::POSIX

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

Constants included from Util::SymbolicFileMode

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

Constants included from Util::Docs

Util::Docs::HEADER_LEVELS

Constants included from Util::Tagging

Util::Tagging::ValidTagRegex

Class Attribute Summary collapse

Instance Attribute Summary collapse

Attributes included from Util::Docs

#doc, #nodoc

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util::Logging

clear_deprecation_warnings, debug, deprecation_warning, format_backtrace, 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

absolute_path?, benchmark, chuser, clear_environment, create_erb, default_env, deterministic_rand, deterministic_rand_int, exit_on_fail, format_backtrace_array, format_puppetstack_frame, get_env, get_environment, logmethods, merge_environment, path_to_uri, pretty_backtrace, replace_file, resolve_stackframe, rfc2396_escape, safe_posix_fork, set_env, skip_external_facts, symbolizehash, thinmark, uri_encode, uri_query_encode, uri_to_path, uri_unescape, 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

#display_mode, #normalize_symbolic_mode, #symbolic_mode_to_int, #valid_symbolic_mode?

Methods included from Util::Warnings

clear_warnings, debug_once, maybe_log, notice_once, warnonce

Methods included from Util::ClassGen

genclass, genmodule, rmclass

Methods included from CompilableResourceType

is_3x_ruby_plugin?

Methods included from MetaType::Manager

allclear, clear_misses, eachtype, loadall, newtype, rmtype, typeloader

Methods included from Util::ProviderFeatures

feature, feature_module, featuredocs, features, provider_feature

Methods included from Util::Docs

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

Methods included from Util::Tagging

#merge_into, #merge_tags_from, #raw_tagged?, #set_tags, #tag, #tag_if_valid, #tagged?, #tags, #valid_tag?

Methods included from Util::Errors

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

Constructor Details

#initialize(hash) ⇒ Type #initialize(resource) ⇒ Type

TODO:

Unclear if this is a new Type or a new instance of a given type (the initialization ends with calling validate - which seems like validation of an instance of a given type, not a new meta type.

TODO:

Explain what the Hash and Resource are. There seems to be two different types of resources; one that causes the title to be set to resource.title, and one that causes the title to be resource.ref (“for components”) - what is a component?

Creates an instance of Type from a hash or a Resource.

Overloads:

  • #initialize(hash) ⇒ Type

    Parameters:

    • hash (Hash)

    Raises:

  • #initialize(resource) ⇒ Type

    Parameters:

    • resource (Puppet:Resource)

    Raises:



2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
 
# File 'lib/puppet/type.rb', line 2321

def initialize(resource)
  resource = self.class.hash2resource(resource) unless resource.is_a?(Puppet::Resource)

  # The list of parameter/property instances.
  @parameters = {}

  # Set the title first, so any failures print correctly.
  if resource.type.to_s.downcase.to_sym == self.class.name
    self.title = resource.title
  else
    # This should only ever happen for components
    self.title = resource.ref
  end

  [:file, :line, :catalog, :exported, :virtual].each do |getter|
    setter = getter.to_s + "="
    val = resource.send(getter)
    self.send(setter, val) if val
  end

  merge_tags_from(resource)

  @original_parameters = resource.to_hash

  set_name(@original_parameters)

  set_default(:provider)

  set_parameters(@original_parameters)

  validate_resource

  set_sensitive_parameters(resource.sensitive_parameters)
end

Class Attribute Details

.defaultprovider ⇒ Puppet::Provider?

Note:

a warning will be issued if no default provider has been configured and a search for the most suitable provider returns more than one equally suitable provider.

The default provider, or the most suitable provider if no default provider was set.

Returns:

  • (Puppet::Provider, nil) —

    the default or most suitable provider, or nil if no provider was found



1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
 
# File 'lib/puppet/type.rb', line 1705

def self.defaultprovider
  return @defaultprovider if @defaultprovider

  suitable = suitableprovider

  # Find which providers are a default for this system.
  defaults = suitable.find_all { |provider| provider.default? }

  # If we don't have any default we use suitable providers
  defaults = suitable if defaults.empty?
  max = defaults.collect { |provider| provider.specificity }.max
  defaults = defaults.find_all { |provider| provider.specificity == max }

  if defaults.length > 1
    Puppet.warning(_("Found multiple default providers for %{name}: %{provider_list}; using %{selected_provider}") %
                       { name: self.name, provider_list:  defaults.collect { |i| i.name.to_s }.join(", "), selected_provider: defaults[0].name })
  end

  @defaultprovider = defaults.shift unless defaults.empty?
end

.name ⇒ String (readonly)

Returns the name of the resource type; e.g., “File”.

Returns:

  • (String) —

    the name of the resource type; e.g., “File”



2189
2190
2191
 
# File 'lib/puppet/type.rb', line 2189

def name
  @name
end

.properties ⇒ Array<Puppet::Property> (readonly)

The returned lists contains instances if Puppet::Property or its subclasses.

Returns:

  • (Array<Puppet::Property>) —

    The list of declared properties for the resource type.



115
116
117
 
# File 'lib/puppet/type.rb', line 115

def properties
  @properties
end

.providerloader ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

The loader of providers to use when loading providers from disk. Although it looks like this attribute provides a way to operate with different loaders of providers that is not the case; the attribute is written when a new type is created, and should not be changed thereafter.



1691
1692
1693
 
# File 'lib/puppet/type.rb', line 1691

def providerloader
  @providerloader
end

.self_refresh ⇒ Boolean

Returns true if the type should send itself a refresh event on change.

Returns:

  • (Boolean) —

    true if the type should send itself a refresh event on change.



2193
2194
2195
 
# File 'lib/puppet/type.rb', line 2193

def self_refresh
  @self_refresh
end

Instance Attribute Details

#catalog ⇒ ??? TODO

TODO:

what does this mean “this resource” (sounds like this if for an instance of the type, not the meta Type), but not sure if this is about the catalog where the meta Type is included)

Returns The catalog that this resource is stored in.

Returns:

  • (??? TODO) —

    The catalog that this resource is stored in.



2273
2274
2275
 
# File 'lib/puppet/type.rb', line 2273

def catalog
  @catalog
end

#exported ⇒ Boolean

Returns Flag indicating if this type is exported.

Returns:

  • (Boolean) —

    Flag indicating if this type is exported



2276
2277
2278
 
# File 'lib/puppet/type.rb', line 2276

def exported
  @exported
end

#file ⇒ String

Returns The file from which this type originates from.

Returns:

  • (String) —

    The file from which this type originates from



2265
2266
2267
 
# File 'lib/puppet/type.rb', line 2265

def file
  @file
end

#line ⇒ Integer

Returns The line in #file from which this type originates from.

Returns:

  • (Integer) —

    The line in #file from which this type originates from



2268
2269
2270
 
# File 'lib/puppet/type.rb', line 2268

def line
  @line
end

#noop ⇒ Boolean

Returns the ‘noop` run mode status of this.

Returns:

  • (Boolean) —

    true if running in noop mode.



1142
1143
1144
 
# File 'lib/puppet/type.rb', line 1142

def noop
  noop?
end

#original_parameters ⇒ Hash (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns hash of parameters originally defined.

Returns:

  • (Hash) —

    hash of parameters originally defined



2301
2302
2303
 
# File 'lib/puppet/type.rb', line 2301

def original_parameters
  @original_parameters
end

#provider ⇒ Puppet::Provider?

The provider that has been selected for the instance of the resource type.

Returns:

  • (Puppet::Provider, nil) —

    the selected provider or nil, if none has been selected



1681
1682
1683
 
# File 'lib/puppet/type.rb', line 1681

def provider
  @provider
end

#title ⇒ String

TODO:

it is somewhat confusing that if the name_var is a valid parameter, it is assumed to be the name_var called :name, but if it is a property, it uses the name_var. It is further confusing as Type in some respects supports multiple namevars.

Returns the title of this object, or its name if title was not explicitly set. If the title is not already set, it will be computed by looking up the #name_var and using that value as the title.

Returns:

  • (String) —

    Returns the title of this object, or its name if title was not explicitly set.

Raises:

  • (??? devfail) —

    if title is not set, and name_var can not be found.



2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
 
# File 'lib/puppet/type.rb', line 2576

def title
  unless @title
    if self.class.validparameter?(name_var)
      @title = self[:name]
    elsif self.class.validproperty?(name_var)
      @title = self.should(name_var)
    else
      self.devfail "Could not find namevar #{name_var} for #{self.class.name}"
    end
  end

  @title
end

#virtual ⇒ Boolean

Returns Flag indicating if the type is virtual (it should not be).

Returns:

  • (Boolean) —

    Flag indicating if the type is virtual (it should not be).



2279
2280
2281
 
# File 'lib/puppet/type.rb', line 2279

def virtual
  @virtual
end

Class Method Details

.allattrs ⇒ Array<String>

Returns all the attribute names of the type in the appropriate order. The key_attributes come first, then the provider, then the properties, and finally the parameters and metaparams, all in the order they were specified in the respective files.

Returns:

  • (Array<String>) —

    all type attribute names in a defined order.



124
125
126
 
# File 'lib/puppet/type.rb', line 124

def self.allattrs
  key_attributes | (parameters & [:provider]) | properties.collect { |property| property.name } | parameters | metaparams
end

.apply_to ⇒ Symbol

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Makes this type apply to ‘:host` if not already applied to something else.

Returns:

  • (Symbol) —

    a ‘:device`, `:host`, or `:both` enumeration



252
253
254
 
# File 'lib/puppet/type.rb', line 252

def self.apply_to
  @apply_to ||= :host
end

.apply_to_all ⇒ Symbol

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Makes this type applicable to ‘:both` (i.e. `:host` and `:device`).

Returns:

  • (Symbol) —

    Returns ‘:both`



245
246
247
 
# File 'lib/puppet/type.rb', line 245

def self.apply_to_all
  @apply_to = :both
end

.apply_to_device ⇒ Symbol

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Makes this type applicable to ‘:device`.

Returns:

  • (Symbol) —

    Returns ‘:device`



229
230
231
 
# File 'lib/puppet/type.rb', line 229

def self.apply_to_device
  @apply_to = :device
end

.apply_to_host ⇒ Symbol

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Makes this type applicable to ‘:host`.

Returns:

  • (Symbol) —

    Returns ‘:host`



237
238
239
 
# File 'lib/puppet/type.rb', line 237

def self.apply_to_host
  @apply_to = :host
end

.attrclass(name) ⇒ Class?

Returns the class associated with the given attribute name.

Parameters:

  • name (String) —

    the name of the attribute to obtain the class for

Returns:

  • (Class, nil) —

    the class for the given attribute, or nil if the name does not refer to an existing attribute



132
133
134
135
136
137
138
139
140
141
142
143
144
145
 
# File 'lib/puppet/type.rb', line 132

def self.attrclass(name)
  @attrclasses ||= {}

  # We cache the value, since this method gets called such a huge number
  # of times (as in, hundreds of thousands in a given run).
  unless @attrclasses.include?(name)
    @attrclasses[name] = case self.attrtype(name)
    when :property; @validproperties[name]
    when :meta; @@metaparamhash[name]
    when :param; @paramhash[name]
    end
  end
  @attrclasses[name]
end

.attrtype(attr) ⇒ Symbol

Returns the attribute type (‘:property`, `;param`, `:meta`).

Returns:

  • (Symbol) —

    a symbol describing the type of attribute (‘:property`, `;param`, `:meta`)



152
153
154
155
156
157
158
159
160
161
162
163
 
# File 'lib/puppet/type.rb', line 152

def self.attrtype(attr)
  @attrtypes ||= {}
  unless @attrtypes.include?(attr)
    @attrtypes[attr] = case
      when @validproperties.include?(attr); :property
      when @paramhash.include?(attr); :param
      when @@metaparamhash.include?(attr); :meta
      end
  end

  @attrtypes[attr]
end

.autobefore(name, &block) ⇒ Object 



2010
2011
2012
2013
 
# File 'lib/puppet/type.rb', line 2010

def self.autobefore(name, &block)
  @autobefores ||= {}
  @autobefores[name] = block
end

.autonotify(name, &block) ⇒ Object 



2020
2021
2022
2023
 
# File 'lib/puppet/type.rb', line 2020

def self.autonotify(name, &block)
  @autonotifies ||= {}
  @autonotifies[name] = block
end

.autorequire(name) {| | ... } ⇒ void

This method returns an undefined value.

Adds a block producing a single name (or list of names) of the given resource type name to autorelate.

The four relationship types require, before, notify, and subscribe are all supported.

Be careful with notify and subscribe as they may have unintended consequences.

Resources in the catalog that have the named type and a title that is included in the result will be linked to the calling resource as a requirement.

Examples:

Autorequire the files File[‘foo’, ‘bar’]

autorequire( 'file', {|| ['foo', 'bar'] })

Autobefore the files File[‘foo’, ‘bar’]

autobefore( 'file', {|| ['foo', 'bar'] })

Autosubscribe the files File[‘foo’, ‘bar’]

autosubscribe( 'file', {|| ['foo', 'bar'] })

Autonotify the files File[‘foo’, ‘bar’]

autonotify( 'file', {|| ['foo', 'bar'] })

Parameters:

  • name (String) —

    the name of a type of which one or several resources should be autorelated e.g. “file”

Yields:

  • ( ) —

    a block returning list of names of given type to auto require

Yield Returns:

  • (String, Array<String>) —

    one or several resource names for the named type



2005
2006
2007
2008
 
# File 'lib/puppet/type.rb', line 2005

def self.autorequire(name, &block)
  @autorequires ||= {}
  @autorequires[name] = block
end

.autosubscribe(name, &block) ⇒ Object 



2015
2016
2017
2018
 
# File 'lib/puppet/type.rb', line 2015

def self.autosubscribe(name, &block)
  @autosubscribes ||= {}
  @autosubscribes[name] = block
end

.can_apply_to(target) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns true if this type is applicable to the given target.

Parameters:

  • target (Symbol) —

    should be :device, :host or :target, if anything else, :host is enforced

Returns:

  • (Boolean) —

    true



261
262
263
 
# File 'lib/puppet/type.rb', line 261

def self.can_apply_to(target)
  [ target == :device ? :device : :host, :both ].include?(apply_to)
end

.eachautobefore {|type, block| ... } ⇒ void

This method returns an undefined value.

Provides iteration over added auto-requirements (see autobefore).

Yield Parameters:

  • type (String) —

    the name of the type to autorequire an instance of

  • block (Proc) —

    a block producing one or several dependencies to auto require (see autobefore).

Yield Returns:

  • (void) 


2042
2043
2044
2045
2046
2047
 
# File 'lib/puppet/type.rb', line 2042

def self.eachautobefore
  @autobefores ||= {}
  @autobefores.each { |type,block|
    yield(type, block)
  }
end

.eachautonotify {|type, block| ... } ⇒ void

This method returns an undefined value.

Provides iteration over added auto-requirements (see autonotify).

Yield Parameters:

  • type (String) —

    the name of the type to autorequire an instance of

  • block (Proc) —

    a block producing one or several dependencies to auto require (see autonotify).

Yield Returns:

  • (void) 


2066
2067
2068
2069
2070
2071
 
# File 'lib/puppet/type.rb', line 2066

def self.eachautonotify
  @autonotifies ||= {}
  @autonotifies.each { |type,block|
    yield(type, block)
  }
end

.eachautorequire {|type, block| ... } ⇒ void

This method returns an undefined value.

Provides iteration over added auto-requirements (see autorequire).

Yield Parameters:

  • type (String) —

    the name of the type to autorequire an instance of

  • block (Proc) —

    a block producing one or several dependencies to auto require (see autorequire).

Yield Returns:

  • (void) 


2030
2031
2032
2033
2034
2035
 
# File 'lib/puppet/type.rb', line 2030

def self.eachautorequire
  @autorequires ||= {}
  @autorequires.each { |type, block|
    yield(type, block)
  }
end

.eachautosubscribe {|type, block| ... } ⇒ void

This method returns an undefined value.

Provides iteration over added auto-requirements (see autosubscribe).

Yield Parameters:

  • type (String) —

    the name of the type to autorequire an instance of

  • block (Proc) —

    a block producing one or several dependencies to auto require (see autosubscribe).

Yield Returns:

  • (void) 


2054
2055
2056
2057
2058
2059
 
# File 'lib/puppet/type.rb', line 2054

def self.eachautosubscribe
  @autosubscribes ||= {}
  @autosubscribes.each { |type,block|
    yield(type, block)
  }
end

.eachmetaparam {|p| ... } ⇒ void

This method returns an undefined value.

Provides iteration over meta-parameters.

Yield Parameters:



169
170
171
 
# File 'lib/puppet/type.rb', line 169

def self.eachmetaparam
  @@metaparams.each { |p| yield p.name }
end

.ensurable ⇒ void .ensurable({|| ... }) ⇒ void

Note:

This method will be automatically called without a block if the type implements the methods specified by ensurable?. It is recommended to always call this method and not rely on this automatic specification to clearly state that the type is ensurable.

This method returns an undefined value.

Creates a new ‘ensure` property with configured default values or with configuration by an optional block. This method is a convenience method for creating a property `ensure` with default accepted values. If no block is specified, the new `ensure` property will accept the default symbolic values `:present`, and `:absent` - see Property::Ensure. If something else is wanted, pass a block and make calls to Property.newvalue from this block to define each possible value. If a block is passed, the defaults are not automatically added to the set of valid values.

Yields:

  • () —

    A block evaluated in scope of the new Parameter

Yield Returns:

  • (void) 


193
194
195
196
197
198
199
200
201
 
# File 'lib/puppet/type.rb', line 193

def self.ensurable(&block)
  if block_given?
    self.newproperty(:ensure, :parent => Puppet::Property::Ensure, &block)
  else
    self.newproperty(:ensure, :parent => Puppet::Property::Ensure) do
      self.defaultvalues
    end
  end
end

.ensurable? ⇒ Boolean

Returns true if the type implements the default behavior expected by being ensurable “by default”. A type is ensurable by default if it responds to ‘:exists`, `:create`, and `:destroy`. If a type implements these methods and have not already specified that it is ensurable, it will be made so with the defaults specified in ensurable.

Returns:

  • (Boolean) —

    whether the type is ensurable or not.



209
210
211
212
213
214
215
 
# File 'lib/puppet/type.rb', line 209

def self.ensurable?
  # If the class has all three of these methods defined, then it's
  # ensurable.
  [:exists?, :create, :destroy].all? { |method|
    self.public_method_defined?(method)
  }
end

.handle_param_options(name, options) ⇒ void

This method returns an undefined value.

Processes the options for a named parameter.

Parameters:

  • name (String) —

    the name of a parameter

  • options (Hash) —

    a hash of options

Options Hash (options):

  • :boolean (Boolean) —

    if option set to true, an access method on the form name? is added for the param



271
272
273
274
275
276
277
278
279
280
281
 
# File 'lib/puppet/type.rb', line 271

def self.handle_param_options(name, options)
  # If it's a boolean parameter, create a method to test the value easily
  if options[:boolean]
    define_method(name.to_s + "?") do
      val = self[name]
      if val == :true or val == true
        return true
      end
    end
  end
end

.hash2resource(hash) ⇒ Puppet::Resource

TODO:

as opposed to a complex hash? Other raised exceptions?

Converts a simple hash into a Resource instance.

Parameters:

  • hash (Hash{Symbol, String => Object}) —

    resource attribute to value map to initialize the created resource from

Returns:

Raises:



1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
 
# File 'lib/puppet/type.rb', line 1197

def self.hash2resource(hash)
  hash = hash.inject({}) { |result, ary| result[ary[0].to_sym] = ary[1]; result }

  title = hash.delete(:title)
  title ||= hash[:name]
  title ||= hash[key_attributes.first] if key_attributes.length == 1

  raise Puppet::Error, "Title or name must be provided" unless title

  # Now create our resource.
  resource = Puppet::Resource.new(self, title)
  resource.catalog = hash.delete(:catalog)

  sensitive = hash.delete(:sensitive_parameters)
  if sensitive
    resource.sensitive_parameters = sensitive
  end

  hash.each do |param, value|
    resource[param] = value
  end
  resource
end

.initvars ⇒ void

TODO:

Does the explanation make sense?

This method returns an undefined value.

Initializes all of the variables that must be initialized for each subclass.



2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
 
# File 'lib/puppet/type.rb', line 2203

def self.initvars
  # all of the instances of this class
  @objects = Hash.new
  @aliases = Hash.new

  @defaults = {}

  @parameters ||= []

  @validproperties = {}
  @properties = []
  @parameters = []
  @paramhash = {}

  @paramdoc = Hash.new { |hash,key|
    key = key.intern if key.is_a?(String)
    if hash.include?(key)
      hash[key]
    else
      "Param Documentation for #{key} not found"
    end
  }

  @doc ||= ""

end

.instances ⇒ Object

TODO:

Retrieves them from where? Known to whom?

Retrieves all known instances. Either requires providers or must be overridden.

Raises:

  • (Puppet::DevError) —

    when there are no providers and the implementation has not overridden this method.



1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
 
# File 'lib/puppet/type.rb', line 1150

def self.instances
  raise Puppet::DevError, _("%{name} has no providers and has not overridden 'instances'") % { name: self.name } if provider_hash.empty?

  # Put the default provider first, then the rest of the suitable providers.
  provider_instances = {}
  providers_by_source.collect do |provider|
    provider.instances.collect do |instance|
      # We always want to use the "first" provider instance we find, unless the resource
      # is already managed and has a different provider set
      title = instance.respond_to?(:title) ? instance.title : instance.name
      other = provider_instances[title]
      if other
        Puppet.debug {
          "%s %s found in both %s and %s; skipping the %s version" % [self.name.to_s.capitalize, title, other.class.name, instance.class.name, instance.class.name]
        }
        next
      end
      provider_instances[title] = instance

      result = new(:name => instance.name, :provider => instance, :title => title)
      properties.each { |name| result.newattr(name) }
      result
    end
  end.flatten.compact
end

.isomorphic? ⇒ Boolean

Returns true if the type’s notion of name is the identity of a resource. See the overview of this class for a longer explanation of the concept isomorphism. Defaults to true.

Returns:

  • (Boolean) —

    true, if this type’s name is isomorphic with the object



927
928
929
930
931
932
933
 
# File 'lib/puppet/type.rb', line 927

def self.isomorphic?
  if defined?(@isomorphic)
    return @isomorphic
  else
    return true
  end
end

.key_attribute_parameters ⇒ Array<Puppet::Parameter>

Returns the list of parameters that comprise the composite key / “uniqueness key”. All parameters that return true from #isnamevar? or is named ‘:name` are included in the returned result.

Returns:

See Also:



374
375
376
377
378
379
380
 
# File 'lib/puppet/type.rb', line 374

def self.key_attribute_parameters
  @key_attribute_parameters ||= (
    @parameters.find_all { |param|
      param.isnamevar? or param.name == :name
    }
  )
end

.key_attributes ⇒ Array<String>

Returns cached key_attribute_parameters names. Key attributes are properties and parameters that comprise a composite key or “uniqueness key”.

Returns:

  • (Array<String>) —

    cached key_attribute names



387
388
389
390
 
# File 'lib/puppet/type.rb', line 387

def self.key_attributes
  # This is a cache miss around 0.05 percent of the time. --daniel 2012-07-17
  @key_attributes_cache ||= key_attribute_parameters.collect { |p| p.name }
end

.metaparam?(param) ⇒ Boolean

Is the given parameter a meta-parameter?

Returns:

  • (Boolean) —

    true if the given parameter is a meta-parameter.



286
287
288
 
# File 'lib/puppet/type.rb', line 286

def self.metaparam?(param)
  @@metaparamhash.include?(param.intern)
end

.metaparamclass(name) ⇒ Class?

Returns the meta-parameter class associated with the given meta-parameter name. Accepts a ‘nil` name, and return nil.

Parameters:

  • name (String, nil) —

    the name of a meta-parameter

Returns:

  • (Class, nil) —

    the class for the given meta-parameter, or ‘nil` if no such meta-parameter exists, (or if the given meta-parameter name is `nil`.



296
297
298
299
 
# File 'lib/puppet/type.rb', line 296

def self.metaparamclass(name)
  return nil if name.nil?
  @@metaparamhash[name.intern]
end

.metaparamdoc(metaparam) ⇒ String

Returns the documentation for a given meta-parameter of this type.

Parameters:

Returns:

  • (String) —

    the documentation associated with the given meta-parameter, or nil of no such documentation exists.

Raises:

  • if the given metaparam is not a meta-parameter in this type



314
315
316
 
# File 'lib/puppet/type.rb', line 314

def self.metaparamdoc(metaparam)
  @@metaparamhash[metaparam].doc
end

.metaparams ⇒ Array<String>

Returns all meta-parameter names.

Returns:

  • (Array<String>) —

    all meta-parameter names



304
305
306
 
# File 'lib/puppet/type.rb', line 304

def self.metaparams
  @@metaparams.collect { |param| param.name }
end

.needs_ensure_retrieved ⇒ Object

Says if the ensure property should be retrieved if the resource is ensurable Defaults to true. Some resource type classes can override it



1038
1039
1040
 
# File 'lib/puppet/type.rb', line 1038

def self.needs_ensure_retrieved
  true
end

.newmetaparam(name, options = {}) {|| ... } ⇒ Class<inherits Puppet::Parameter>

TODO:

Verify that this description is ok

Creates a new meta-parameter. This creates a new meta-parameter that is added to this and all inheriting types.

Parameters:

  • name (Symbol) —

    the name of the parameter

  • options (Hash) (defaults to: {}) —

    a hash with options.

Options Hash (options):

  • :parent (Class<inherits Puppet::Parameter>) — default: Puppet::Parameter —

    the super class of this parameter

  • :attributes (Hash{String => Object}) —

    a hash that is applied to the generated class by calling setter methods corresponding to this hash’s keys/value pairs. This is done before the given block is evaluated.

  • :boolean (Boolean) — default: false —

    specifies if this is a boolean parameter

  • :namevar (Boolean) — default: false —

    specifies if this parameter is the namevar

  • :required_features (Symbol, Array<Symbol>) —

    specifies required provider features by name

Yields:

  • () —

    a required block that is evaluated in the scope of the new meta-parameter

Returns:



335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
 
# File 'lib/puppet/type.rb', line 335

def self.newmetaparam(name, options = {}, &block)
  @@metaparams ||= []
  @@metaparamhash ||= {}
  name = name.intern

  param = genclass(
    name,
    :parent => options[:parent] || Puppet::Parameter,
    :prefix => "MetaParam",
    :hash => @@metaparamhash,
    :array => @@metaparams,
    :attributes => options[:attributes],
    &block
  )

  # Grr.
  param.required_features = options[:required_features] if options[:required_features]

  handle_param_options(name, options)

  param.metaparam = true

  param
end

.newparam(name, options = {}) {|| ... } ⇒ Class<inherits Puppet::Parameter>

Creates a new parameter.

Parameters:

  • name (Symbol) —

    the name of the parameter

  • options (Hash) (defaults to: {}) —

    a hash with options.

Options Hash (options):

  • :parent (Class<inherits Puppet::Parameter>) — default: Puppet::Parameter —

    the super class of this parameter

  • :attributes (Hash{String => Object}) —

    a hash that is applied to the generated class by calling setter methods corresponding to this hash’s keys/value pairs. This is done before the given block is evaluated.

  • :boolean (Boolean) — default: false —

    specifies if this is a boolean parameter

  • :namevar (Boolean) — default: false —

    specifies if this parameter is the namevar

  • :required_features (Symbol, Array<Symbol>) —

    specifies required provider features by name

Yields:

  • () —

    a required block that is evaluated in the scope of the new parameter

Returns:



460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
 
# File 'lib/puppet/type.rb', line 460

def self.newparam(name, options = {}, &block)
  options[:attributes] ||= {}

  param = genclass(
    name,
    :parent     => options[:parent] || Puppet::Parameter,
    :attributes => options[:attributes],
    :block      => block,
    :prefix     => "Parameter",
    :array      => @parameters,
    :hash       => @paramhash
  )

  handle_param_options(name, options)

  # Grr.
  param.required_features = options[:required_features] if options[:required_features]

  param.isnamevar if options[:namevar]

  param
end

.newproperty(name, options = {}) {|| ... } ⇒ Class<inherits Puppet::Property>

Creates a new property.

Parameters:

  • name (Symbol) —

    the name of the property

  • options (Hash) (defaults to: {}) —

    a hash with options.

Options Hash (options):

  • :array_matching (Symbol) — default: :first —

    specifies how the current state is matched against the wanted state. Use ‘:first` if the property is single valued, and (`:all`) otherwise.

  • :parent (Class<inherits Puppet::Property>) — default: Puppet::Property —

    the super class of this property

  • :attributes (Hash{String => Object}) —

    a hash that is applied to the generated class by calling setter methods corresponding to this hash’s keys/value pairs. This is done before the given block is evaluated.

  • :boolean (Boolean) — default: false —

    specifies if this is a boolean parameter

  • :retrieve (Symbol) —

    the method to call on the provider (or ‘parent` if `provider` is not set) to retrieve the current value of this property.

  • :required_features (Symbol, Array<Symbol>) —

    specifies required provider features by name

Yields:

  • () —

    a required block that is evaluated in the scope of the new property

Returns:

Raises:



501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
 
# File 'lib/puppet/type.rb', line 501

def self.newproperty(name, options = {}, &block)
  name = name.intern

  # This is here for types that might still have the old method of defining
  # a parent class.
  unless options.is_a? Hash
    raise Puppet::DevError, _("Options must be a hash, not %{type}") % { type: options.inspect }
  end

  raise Puppet::DevError, _("Class %{class_name} already has a property named %{property}") % { class_name: self.name, property: name } if @validproperties.include?(name)

  parent = options[:parent]
  if parent
    options.delete(:parent)
  else
    parent = Puppet::Property
  end

  # We have to create our own, new block here because we want to define
  # an initial :retrieve method, if told to, and then eval the passed
  # block if available.
  prop = genclass(name, :parent => parent, :hash => @validproperties, :attributes => options) do
    # If they've passed a retrieve method, then override the retrieve
    # method on the class.
    if options[:retrieve]
      define_method(:retrieve) do
        provider.send(options[:retrieve])
      end
    end

    class_eval(&block) if block
  end

  # If it's the 'ensure' property, always put it first.
  if name == :ensure
    @properties.unshift prop
  else
    @properties << prop
  end

  prop
end

.paramclass(name) ⇒ Puppet::Parameter

Returns the parameter class associated with the given parameter name.

Returns:

  • (Puppet::Parameter) —

    Returns the parameter class associated with the given parameter name.



555
556
557
 
# File 'lib/puppet/type.rb', line 555

def self.paramclass(name)
  @paramhash[name]
end

.paramdoc(param) ⇒ Object 



544
545
546
 
# File 'lib/puppet/type.rb', line 544

def self.paramdoc(param)
  @paramhash[param].doc
end

.parameters ⇒ Array<String>

Returns the parameter names

Returns:

  • (Array<String>) —

    Returns the parameter names



549
550
551
552
 
# File 'lib/puppet/type.rb', line 549

def self.parameters
  return [] unless defined?(@parameters)
  @parameters.collect { |klass| klass.name }
end

.parameters_to_include ⇒ Array<Symbol>

Returns any parameters that should be included by default in puppet resource’s output

Returns:

  • (Array<Symbol>) —

    the parameters to include



394
395
396
 
# File 'lib/puppet/type.rb', line 394

def self.parameters_to_include
  []
end

.propertybyname(name) ⇒ Puppet::Property

Returns the property class ??? associated with the given property name

Returns:

  • (Puppet::Property) —

    Returns the property class ??? associated with the given property name



560
561
562
 
# File 'lib/puppet/type.rb', line 560

def self.propertybyname(name)
  @validproperties[name]
end

.provide(name, options = {}, &block) ⇒ Puppet::Provider

TODO:

Fix Confusing Explanations! Is this a new provider of a Type (metatype), or a provider of an instance of Type (a resource), or a Provider (the implementation of a Type’s behavior). CONFUSED. It calls magically named methods like “providify” …

Creates a new provider of a type. This method must be called directly on the type that it’s implementing.

Parameters:

  • name (String, Symbol) —

    the name of the WHAT? provider? type?

  • options (Hash{Symbol => Object}) (defaults to: {}) —

    a hash of options, used by this method, and passed on to Util::ClassGen#genclass, (see it for additional options to pass).

Options Hash (options):

  • :parent (Puppet::Provider) —

    the parent provider (what is this?)

  • :resource_type (Puppet::Type) —

    the resource type, defaults to this type if unspecified

Returns:

Raises:



1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
 
# File 'lib/puppet/type.rb', line 1789

def self.provide(name, options = {}, &block)
  name = name.intern

  if unprovide(name)
    Puppet.debug { "Reloading #{name} #{self.name} provider" }
  end

  pname = options[:parent]
  parent = if pname
    options.delete(:parent)
    if pname.is_a? Class
      pname
    else
      provider = self.provider(pname)
      if provider
        provider
      else
        raise Puppet::DevError, _("Could not find parent provider %{parent} of %{name}") % { parent: pname, name: name }
      end
    end
  else
    Puppet::Provider
  end

  options[:resource_type] ||= self

  self.providify

  provider = genclass(
    name,
    :parent     => parent,
    :hash       => provider_hash,
    :prefix     => "Provider",
    :block      => block,
    :include    => feature_module,
    :extend     => feature_module,
    :attributes => options
  )

  provider
end

.provider(name) ⇒ Puppet::Provider?

Returns the provider having the given name. This will load a provider if it is not already loaded. The returned provider is the first found provider having the given name, where “first found” semantics is defined by the providerloader in use.

Parameters:

  • name (String) —

    the name of the provider to get

Returns:

  • (Puppet::Provider, nil) —

    the found provider, or nil if no provider of the given name was found



1746
1747
1748
1749
1750
1751
1752
 
# File 'lib/puppet/type.rb', line 1746

def self.provider(name)
  name = name.intern

  # If we don't have it yet, try loading it.
  @providerloader.load(name, Puppet.lookup(:current_environment)) unless provider_hash.has_key?(name)
  provider_hash[name]
end

.provider_hash ⇒ Hash{ ??? => Puppet::Provider}

Returns a hash of WHAT EXACTLY for this type.

Returns:

  • (Hash{ ??? => Puppet::Provider}) —

    Returns a hash of WHAT EXACTLY for this type.

See Also:



1735
1736
1737
 
# File 'lib/puppet/type.rb', line 1735

def self.provider_hash
  Puppet::Type.provider_hash_by_type(self.name)
end

.provider_hash_by_type(type) ⇒ Hash{??? => Puppet::Provider}

TODO:

what goes into this hash?

Returns a hash of WHAT EXACTLY for the given type

Returns:

  • (Hash{??? => Puppet::Provider}) —

    Returns a hash of WHAT EXACTLY for the given type



1728
1729
1730
1731
 
# File 'lib/puppet/type.rb', line 1728

def self.provider_hash_by_type(type)
  @provider_hashes ||= {}
  @provider_hashes[type] ||= {}
end

.providers ⇒ Array<String>

Returns a list of loaded providers by name. This method will not load/search for available providers.

Returns:

  • (Array<String>) —

    list of loaded provider names



1758
1759
1760
 
# File 'lib/puppet/type.rb', line 1758

def self.providers
  provider_hash.keys
end

.providers_by_source ⇒ Array<Puppet::Provider>

TODO:

Needs better explanation; what does “source” mean in this context?

Returns a list of one suitable provider per source, with the default provider first.

Returns:



1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
 
# File 'lib/puppet/type.rb', line 1180

def self.providers_by_source
  # Put the default provider first (can be nil), then the rest of the suitable providers.
  sources = []
  [defaultprovider, suitableprovider].flatten.uniq.collect do |provider|
    next if provider.nil?
    next if sources.include?(provider.source)

    sources << provider.source
    provider
  end.compact
end

.providify ⇒ void

This method returns an undefined value.

Ensures there is a ‘:provider` parameter defined. Should only be called if there are providers.



1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
 
# File 'lib/puppet/type.rb', line 1834

def self.providify
  return if @paramhash.has_key? :provider

  param = newparam(:provider) do
    # We're using a hacky way to get the name of our type, since there doesn't
    # seem to be a correct way to introspect this at the time this code is run.
    # We expect that the class in which this code is executed will be something
    # like Puppet::Type::Ssh_authorized_key::ParameterProvider.
    desc <<-EOT
      The specific backend to use for this `#{self.to_s.split('::')[2].downcase}`
      resource. You will seldom need to specify this --- Puppet will usually
      discover the appropriate provider for your platform.
    EOT

    # This is so we can refer back to the type to get a list of
    # providers for documentation.
    class << self
      # The reference to a parent type for the parameter `:provider` used to get a list of
      # providers for documentation purposes.
      #
      attr_accessor :parenttype
    end

    # Provides the ability to add documentation to a provider.
    #
    def self.doc
      # Since we're mixing @doc with text from other sources, we must normalize
      # its indentation with scrub. But we don't need to manually scrub the
      # provider's doc string, since markdown_definitionlist sanitizes its inputs.
      scrub(@doc) + "Available providers are:\n\n" + parenttype.providers.sort_by(&:to_s).collect { |i|
        markdown_definitionlist( i, scrub(parenttype().provider(i).doc) )
      }.join
    end

    # For each resource, the provider param defaults to
    # the type's default provider
    defaultto {
      prov = @resource.class.defaultprovider
      prov.name if prov
    }

    validate do |provider_class|
      provider_class = provider_class[0] if provider_class.is_a? Array
      provider_class = provider_class.class.name if provider_class.is_a?(Puppet::Provider)

      unless @resource.class.provider(provider_class)
        raise ArgumentError, _("Invalid %{resource} provider '%{provider_class}'") % { resource: @resource.class.name, provider_class: provider_class}
      end
    end

    munge do |provider|
      provider = provider[0] if provider.is_a? Array
      provider = provider.intern if provider.is_a? String
      @resource.provider = provider

      if provider.is_a?(Puppet::Provider)
        provider.class.name
      else
        provider
      end
    end
  end
  param.parenttype = self
end

.relationship_params ⇒ Object 



1569
1570
1571
 
# File 'lib/puppet/type.rb', line 1569

def self.relationship_params
  RelationshipMetaparam.subclasses
end

.suitableprovider ⇒ Array<Puppet::Provider>

Note:

This method also does some special processing which rejects a provider named ‘:fake` (for testing purposes).

Returns a list of suitable providers for the given type. A call to this method will load all providers if not already loaded and ask each if it is suitable - those that are are included in the result.

Returns:



1916
1917
1918
1919
1920
1921
1922
1923
 
# File 'lib/puppet/type.rb', line 1916

def self.suitableprovider
  providerloader.loadall(Puppet.lookup(:current_environment)) if provider_hash.empty?
  provider_hash.find_all { |name, provider|
    provider.suitable?
  }.collect { |name, provider|
    provider
  }.reject { |p| p.name == :fake } # For testing
end

.title_patterns ⇒ Array<Array<Regexp, Array<Array <Symbol, Proc>>>>?

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Note:

Advanced: some logic requires this mapping to be done differently, using a different validation/pattern, breaking up the title into several parts assigning each to an individual attribute, or even use a composite identity where all namevars are seen as part of the unique identity (such computation is done by the #uniqueness method. These advanced options are rarely used (only one of the built in puppet types use this, and then only a small part of the available functionality), and the support for these advanced mappings is not implemented in a straight forward way. For these reasons, this method has been marked as private).

Returns a mapping from the title string to setting of attribute values. This default implementation provides a mapping of title to the one and only namevar present in the type’s definition.

Returns:

  • (Array<Array<Regexp, Array<Array <Symbol, Proc>>>>, nil) —

    a structure with a regexp and the first key_attribute ???

Raises:

  • (Puppet::DevError) —

    if there is no title pattern and there are two or more key attributes



426
427
428
429
430
431
432
433
434
 
# File 'lib/puppet/type.rb', line 426

def self.title_patterns
  case key_attributes.length
  when 0; []
  when 1;
    [ [ /(.*)/m, [ [key_attributes.first] ] ] ]
  else
    raise Puppet::DevError, _("you must specify title patterns when there are two or more key attributes")
  end
end

.to_s ⇒ String

Returns the name of this type (if specified) or the parent type #to_s. The returned name is on the form “Puppet::Type::<name>”, where the first letter of name is capitalized.

Returns:

  • (String) —

    the fully qualified name Puppet::Type::<name> where the first letter of name is capitalized



2235
2236
2237
2238
2239
2240
2241
 
# File 'lib/puppet/type.rb', line 2235

def self.to_s
  if defined?(@name)
    "Puppet::Type::#{@name.to_s.capitalize}"
  else
    super
  end
end

.unprovide(name) ⇒ Object

TODO:

this needs a better explanation

Removes the implementation class of a given provider.

Returns:



1902
1903
1904
1905
1906
1907
1908
 
# File 'lib/puppet/type.rb', line 1902

def self.unprovide(name)
  if @defaultprovider and @defaultprovider.name == name
    @defaultprovider = nil
  end

  rmclass(name, :hash => provider_hash, :prefix => "Provider")
end

.valid_parameter?(name) ⇒ Boolean

Note:

see comment in code - how should this be documented? Are some of the other query methods deprecated? (or should be).

Returns whether or not the given name is the name of a property, parameter or meta-parameter

Returns:

  • (Boolean) —

    true if the given attribute name is the name of an existing property, parameter or meta-parameter



605
606
607
 
# File 'lib/puppet/type.rb', line 605

def self.valid_parameter?(name)
  validattr?(name)
end

.validate {|| ... } ⇒ void

This method returns an undefined value.

Creates a ‘validate` method that is used to validate a resource before it is operated on. The validation should raise exceptions if the validation finds errors. (It is not recommended to issue warnings as this typically just ends up in a logfile - you should fail if a validation fails). The easiest way to raise an appropriate exception is to call the method Util::Errors.fail with the message as an argument.

Yields:

  • () —

    a required block called with self set to the instance of a Type class representing a resource.



2254
2255
2256
2257
2258
2259
2260
2261
2262
 
# File 'lib/puppet/type.rb', line 2254

def self.validate(&block)
  define_method(:unsafe_validate, &block)

  define_method(:validate) do
    return if enum_for(:eachparameter).any? { |p| p.value.instance_of?(Puppet::Pops::Evaluator::DeferredValue) }

    unsafe_validate
  end
end

.validattr?(name) ⇒ Boolean

Returns whether or not the given name is the name of a property, parameter or meta-parameter

Returns:

  • (Boolean) —

    true if the given attribute name is the name of an existing property, parameter or meta-parameter



567
568
569
570
571
572
573
574
575
576
577
 
# File 'lib/puppet/type.rb', line 567

def self.validattr?(name)
  name = name.intern
  return true if name == :name
  @validattrs ||= {}

  unless @validattrs.include?(name)
    @validattrs[name] = !!(self.validproperty?(name) or self.validparameter?(name) or self.metaparam?(name))
  end

  @validattrs[name]
end

.validparameter?(name) ⇒ Boolean

Returns true if the given name is the name of an existing parameter

Returns:

  • (Boolean) —

    Returns true if the given name is the name of an existing parameter

Raises:



596
597
598
599
 
# File 'lib/puppet/type.rb', line 596

def self.validparameter?(name)
  raise Puppet::DevError, _("Class %{class_name} has not defined parameters") % { class_name: self } unless defined?(@parameters)
  !!(@paramhash.include?(name) or @@metaparamhash.include?(name))
end

.validproperties ⇒ Array<Symbol>, {}

TODO:

An empty hash is returned if there are no defined parameters (not an empty array). This looks like a bug.

Returns a list of valid property names, or an empty hash if there are none.

Returns:

  • (Array<Symbol>, {}) —

    Returns a list of valid property names, or an empty hash if there are none.



589
590
591
592
593
 
# File 'lib/puppet/type.rb', line 589

def self.validproperties
  return {} unless defined?(@parameters)

  @validproperties.keys
end

.validproperty?(name) ⇒ Boolean

Returns true if the given name is the name of an existing property

Returns:

  • (Boolean) —

    Returns true if the given name is the name of an existing property



580
581
582
583
 
# File 'lib/puppet/type.rb', line 580

def self.validproperty?(name)
  name = name.intern
  @validproperties.include?(name) && @validproperties[name]
end

.validprovider?(name) ⇒ Boolean

TODO:

How does the provider know if it is suitable for the type? Is it just suitable for the platform/ environment where this method is executing?

Returns true if the given name is a reference to a provider and if this is a suitable provider for this type.

Parameters:

  • name (String) —

    the name of the provider for which validity is checked

Returns:

  • (Boolean) —

    true if the given name references a provider that is suitable



1769
1770
1771
1772
1773
 
# File 'lib/puppet/type.rb', line 1769

def self.validprovider?(name)
  name = name.intern

  (provider_hash.has_key?(name) && provider_hash[name].suitable?)
end

Instance Method Details

#<=>(other) ⇒ -1, ...

Compares this type against the given other (type) and returns -1, 0, or +1 depending on the order.

Parameters:

  • other (Object) —

    the object to compare against (produces nil, if not kind of Type}

Returns:

  • (-1, 0, +1, nil) —

    produces -1 if this type is before the given other type, 0 if equals, and 1 if after. Returns nil, if the given other is not a kind of Type.

See Also:

  • Comparable


100
101
102
103
104
105
106
 
# File 'lib/puppet/type.rb', line 100

def <=>(other)
  # Order is only maintained against other types, not arbitrary objects.
  # The natural order is based on the reference name used when comparing
  return nil unless other.is_a?(Puppet::CompilableResourceType) || other.class.is_a?(Puppet::CompilableResourceType)
  # against other type instances.
  self.ref <=> other.ref
end

#[](name) ⇒ Object

Gets the ‘should’ (wanted state) value of a parameter or property by name. To explicitly get the ‘is’ (current state) value use ‘o.is(:name)`, and to explicitly get the ’should’ value use ‘o.should(:name)`

Parameters:

  • name (String) —

    the name of the attribute to obtain the ‘should’ value for.

Returns:

  • (Object) —

    ‘should’/wanted value of the given attribute



642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
 
# File 'lib/puppet/type.rb', line 642

def [](name)
  name = name.intern
  fail("Invalid parameter #{name}(#{name.inspect})") unless self.class.validattr?(name)

  if name == :name
    nv = name_var
    name = nv if nv
  end

  obj = @parameters[name]
  if obj
    # Note that if this is a property, then the value is the "should" value,
    # not the current value.
    obj.value
  else
    return nil
  end
end

#[]=(name, value) ⇒ Object

Sets the ‘should’ (wanted state) value of a property, or the value of a parameter.

Returns:

Raises:

  • (Puppet::Error) —

    if the setting of the value fails, or if the given name is nil.

  • (Puppet::ResourceError) —

    when the parameter validation raises Puppet::Error or ArgumentError



666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
 
# File 'lib/puppet/type.rb', line 666

def []=(name,value)
  name = name.intern

  fail("no parameter named '#{name}'") unless self.class.validattr?(name)

  if name == :name
    nv = name_var
    name = nv if nv
  end
  raise Puppet::Error.new("Got nil value for #{name}") if value.nil?

  property = self.newattr(name)

  if property
    begin
      # make sure the parameter doesn't have any errors
      property.value = value
    rescue Puppet::Error, ArgumentError => detail
      error = Puppet::ResourceError.new(_("Parameter %{name} failed on %{ref}: %{detail}") %
                                            { name: name, ref: ref, detail: detail })
      adderrorcontext(error, detail)
      raise error
    end
  end

  nil
end

#add_property_parameter(prop_name) ⇒ Boolean

Creates a new property value holder for the resource if it is valid and does not already exist

Returns:

  • (Boolean) —

    true if a new parameter was added, false otherwise



616
617
618
619
620
621
622
 
# File 'lib/puppet/type.rb', line 616

def add_property_parameter(prop_name)
  if self.class.validproperty?(prop_name) && !@parameters[prop_name]
    self.newattr(prop_name)
    return true
  end
  false
end

#ancestors ⇒ Array<???>

TODO:

WHAT IS THIS ?

Returns the ancestors - WHAT? This implementation always returns an empty list.

Returns:

  • (Array<???>) —

    returns a list of ancestors.



1006
1007
1008
 
# File 'lib/puppet/type.rb', line 1006

def ancestors
  []
end

#appliable_to_device? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns true if a resource of this type can be evaluated on a ‘network device’ kind of hosts.

Returns:

  • (Boolean) —

    Returns whether the resource is applicable to ‘:device`



2625
2626
2627
 
# File 'lib/puppet/type.rb', line 2625

def appliable_to_device?
  self.class.can_apply_to(:device)
end

#appliable_to_host? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns true if a resource of this type can be evaluated on a regular generalized computer (ie not an appliance like a network device)

Returns:

  • (Boolean) —

    Returns whether the resource is applicable to ‘:host`



2632
2633
2634
 
# File 'lib/puppet/type.rb', line 2632

def appliable_to_host?
  self.class.can_apply_to(:host)
end

#autobefore(rel_catalog = nil) ⇒ Object 



2123
2124
2125
 
# File 'lib/puppet/type.rb', line 2123

def autobefore(rel_catalog = nil)
  autorelation(:before, rel_catalog)
end

#autonotify(rel_catalog = nil) ⇒ Object 



2131
2132
2133
 
# File 'lib/puppet/type.rb', line 2131

def autonotify(rel_catalog = nil)
  autorelation(:notify, rel_catalog)
end

#autorelation(rel_type, rel_catalog = nil) ⇒ Object

TODO:

needs details - see the param rel_catalog, and type of this param

Adds dependencies to the catalog from added autorelations. See autorequire for how to add an auto-requirement.

Parameters:

  • rel_catalog (Puppet::Resource::Catalog, nil) (defaults to: nil) —

    the catalog to add dependencies to. Defaults to the current catalog (set when the type instance was added to a catalog)

Raises:



2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
 
# File 'lib/puppet/type.rb', line 2081

def autorelation(rel_type, rel_catalog = nil)
  rel_catalog ||= catalog
  raise Puppet::DevError, _("You cannot add relationships without a catalog") unless rel_catalog

  reqs = []

  auto_rel = "eachauto#{rel_type}".to_sym

  self.class.send(auto_rel) { |type, block|
    # Ignore any types we can't find, although that would be a bit odd.
    next unless Puppet::Type.type(type)

    # Retrieve the list of names from the block.
    list = self.instance_eval(&block)
    next unless list
    list = [list] unless list.is_a?(Array)

    # Collect the current prereqs
    list.each { |dep|
      next if dep.nil?

      # Support them passing objects directly, to save some effort.
      unless dep.is_a?(Puppet::Type)
        # Skip autorelation that we aren't managing
        dep = rel_catalog.resource(type, dep)
        next unless dep
      end

      if [:require, :subscribe].include?(rel_type)
        reqs << Puppet::Relationship.new(dep, self)
      else
        reqs << Puppet::Relationship.new(self, dep)
      end
    }
  }
  reqs
end

#autorequire(rel_catalog = nil) ⇒ Object 



2119
2120
2121
 
# File 'lib/puppet/type.rb', line 2119

def autorequire(rel_catalog = nil)
  autorelation(:require, rel_catalog)
end

#autosubscribe(rel_catalog = nil) ⇒ Object 



2127
2128
2129
 
# File 'lib/puppet/type.rb', line 2127

def autosubscribe(rel_catalog = nil)
  autorelation(:subscribe, rel_catalog)
end

#builddepends ⇒ Array<Puppet::Relationship>

Builds the dependencies associated with this resource.

Returns:



2138
2139
2140
2141
2142
2143
2144
 
# File 'lib/puppet/type.rb', line 2138

def builddepends
  # Handle the requires
  self.class.relationship_params.collect do |klass|
    param = @parameters[klass.name]
    param.to_edges if param
  end.flatten.reject { |r| r.nil? }
end

#copy_metaparams(parameters) ⇒ Void

Copies all of a resource’s metaparameters (except ‘alias`) to a generated child resource

Parameters:

  • parameters (Hash) —

    of a resource’s parameters

Returns:

  • (Void) 


363
364
365
366
367
368
 
# File 'lib/puppet/type.rb', line 363

def copy_metaparams(parameters)
  parameters.each do |name, param|
    self[name] = param.value if param.metaparam? && name != :alias
  end
  nil
end

#currentpropvalues ⇒ Hash{Puppet::Property => Object}

Returns a hash of the current properties and their values. If a resource is absent, its value is the symbol ‘:absent`

Returns:



1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
 
# File 'lib/puppet/type.rb', line 1106

def currentpropvalues
  # It's important to use the 'properties' method here, as it follows the order
  # in which they're defined in the class.  It also guarantees that 'ensure'
  # is the first property, which is important for skipping 'retrieve' on
  # all the properties if the resource is absent.
  ensure_state = false
  return properties.inject({}) do | prophash, property|
    if property.name == :ensure
      ensure_state = property.retrieve
      prophash[property] = ensure_state
    else
      if ensure_state == :absent
        prophash[property] = :absent
      else
        prophash[property] = property.retrieve
      end
    end
    prophash
  end
end

#delete(attr) ⇒ Object

TODO:

Don’t know what the attr is (name or Property/Parameter?). Guessing it is a String name…

TODO:

Is it possible to delete a meta-parameter?

TODO:

What does delete mean? Is it deleted from the type or is its value state ‘is’/‘should’ deleted?

Removes an attribute from the object; useful in testing or in cleanup when an error has been encountered

Parameters:

  • attr (String) —

    the attribute to delete from this object. WHAT IS THE TYPE?

Raises:

  • (Puppet::DecError) —

    when an attempt is made to delete an attribute that does not exists.



702
703
704
705
706
707
708
709
 
# File 'lib/puppet/type.rb', line 702

def delete(attr)
  attr = attr.intern
  if @parameters.has_key?(attr)
    @parameters.delete(attr)
  else
    raise Puppet::DevError.new(_("Undefined attribute '%{attribute}' in %{name}") % { attribute: attr, name: self})
  end
end

#deleting? ⇒ Boolean

Returns true if the wanted state of the resource is that it should be absent (i.e. to be deleted).

Returns:

  • (Boolean) —

    Returns true if the wanted state of the resource is that it should be absent (i.e. to be deleted).



610
611
612
 
# File 'lib/puppet/type.rb', line 610

def deleting?
  obj = @parameters[:ensure] and obj.should == :absent
end

#depthfirst? ⇒ Boolean

TODO:

What is this used for?

Returns true if the search should be done in depth-first order. This implementation always returns false.

Returns:

  • (Boolean) —

    true if the search should be done in depth first order.



975
976
977
 
# File 'lib/puppet/type.rb', line 975

def depthfirst?
  false
end

#eachparameter {|parameter| ... } ⇒ void

This method returns an undefined value.

Iterates over all parameters with value currently set.

Yield Parameters:



731
732
733
 
# File 'lib/puppet/type.rb', line 731

def eachparameter
  parameters_with_value.each { |parameter| yield parameter }
end

#eachproperty {|property| ... } ⇒ void

This method returns an undefined value.

Iterates over the properties that were set on this resource.

Yield Parameters:



714
715
716
717
718
719
 
# File 'lib/puppet/type.rb', line 714

def eachproperty
  # properties is a private method
  properties.each { |property|
    yield property
  }
end

#event(options = {}) ⇒ Puppet::Transaction::Event

TODO:

Needs a better explanation “Why should I care who is calling this method?”, What do I need to know about events and how they work? Where can I read about them?

Creates a transaction event. Called by Transaction or by a property. Merges the given options with the options ‘:resource`, `:file`, `:line`, and `:tags`, initialized from values in this object. For possible options to pass (if any ????) see Puppet::Transaction::Event.

Parameters:

  • options (Hash) (defaults to: {}) —

    options merged with a fixed set of options defined by this method, passed on to Puppet::Transaction::Event.

Returns:



743
744
745
 
# File 'lib/puppet/type.rb', line 743

def event(options = {})
  Puppet::Transaction::Event.new(**{:resource => self, :file => file, :line => line, :tags => tags}.merge(options))
end

#exported? ⇒ Boolean

Returns whether the resource is exported or not

Returns:

  • (Boolean) —

    Returns whether the resource is exported or not



2619
 
# File 'lib/puppet/type.rb', line 2619

def exported?; !!@exported; end

#finish ⇒ Array<Puppet::Parameter>

TODO:

what is the expected sequence here - who is responsible for calling this? When? Is the returned type correct?

Finishes any outstanding processing. This method should be called as a final step in setup, to allow the parameters that have associated auto-require needs to be processed.

Returns:



2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
 
# File 'lib/puppet/type.rb', line 2486

def finish
  # Call post_compile hook on every parameter that implements it. This includes all subclasses
  # of parameter including, but not limited to, regular parameters, metaparameters, relationship
  # parameters, and properties.
  eachparameter do |parameter|
    parameter.post_compile if parameter.respond_to? :post_compile
  end

  # Make sure all of our relationships are valid.  Again, must be done
  # when the entire catalog is instantiated.
  self.class.relationship_params.collect do |klass|
    param = @parameters[klass.name]
    param.validate_relationship if param
  end.flatten.reject { |r| r.nil? }
end

#flush ⇒ ????

TODO:

What does Flushing the provider mean? Why is it interesting to know that this is called by the transaction? (It is not explained anywhere what a transaction is).

Flushes the provider if supported by the provider, else no action. This is called by the transaction.

Returns:

  • (???, nil) —

    WHAT DOES IT RETURN? GUESS IS VOID



1032
1033
1034
 
# File 'lib/puppet/type.rb', line 1032

def flush
  self.provider.flush if self.provider and self.provider.respond_to?(:flush)
end

#isomorphic? ⇒ Boolean

TODO:

check that this gets documentation (it is at the class level as well as instance).

(see isomorphic?)

Returns:

  • (Boolean) 


937
938
939
 
# File 'lib/puppet/type.rb', line 937

def isomorphic?
  self.class.isomorphic?
end

#log(msg) ⇒ void

This method returns an undefined value.

Creates a log entry with the given message at the log level specified by the parameter ‘loglevel`



2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
 
# File 'lib/puppet/type.rb', line 2284

def log(msg)

  Puppet::Util::Log.create(

    :level => @parameters[:loglevel].value,
    :message => msg,

    :source => self
  )
end

#managed? ⇒ Boolean

Note:

An object that is managed always stays managed, but an object that is not managed may become managed later in its lifecycle.

Returns true if the instance is a managed instance. A ‘yes’ here means that the instance was created from the language, vs. being created in order resolve other questions, such as finding a package in a list.

Returns:

  • (Boolean) —

    true if the object is managed



947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
 
# File 'lib/puppet/type.rb', line 947

def managed?
  # Once an object is managed, it always stays managed; but an object
  # that is listed as unmanaged might become managed later in the process,
  # so we have to check that every time
  if @managed
    return @managed
  else
    @managed = false
    properties.each { |property|
      s = property.should
      if s and ! property.class.unmanaged
        @managed = true
        break
      end
    }
    return @managed
  end
end

#name ⇒ String

TODO:

There is a comment in source that this is not quite the same as ‘:title’ and that a switch should be made…

Returns the resource’s name

Returns:

  • (String) —

    the name of a resource



2508
2509
2510
 
# File 'lib/puppet/type.rb', line 2508

def name
  self[:name]
end

#name_var ⇒ Symbol, Boolean

Returns the name of the namevar if there is only one or false otherwise.

Returns:

  • (Symbol, Boolean) —

    Returns the name of the namevar if there is only one or false otherwise.



631
632
633
634
635
 
# File 'lib/puppet/type.rb', line 631

def name_var
  return @name_var_cache unless @name_var_cache.nil?
  key_attributes = self.class.key_attributes
  @name_var_cache = (key_attributes.length == 1) && key_attributes.first
end

#newattr(name) ⇒ Object #newattr(klass) ⇒ Object

Registers an attribute to this resource type instance. Requires either the attribute name or class as its argument. This is a noop if the named property/parameter is not supported by this resource. Otherwise, an attribute instance is created and kept in this resource’s parameters hash.

Overloads:

  • #newattr(name) ⇒ Object

    Parameters:

    • name (Symbol) —

      symbolic name of the attribute

  • #newattr(klass) ⇒ Object

    Parameters:

    • klass (Class) —

      a class supported as an attribute class, i.e. a subclass of Parameter or Property

Returns:

  • (Object) —

    An instance of the named Parameter or Property class associated to this resource type instance, or nil if the attribute is not supported



771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
 
# File 'lib/puppet/type.rb', line 771

def newattr(name)
  if name.is_a?(Class)
    klass = name
    name = klass.name
  end

  klass = self.class.attrclass(name)
  unless klass
    raise Puppet::Error, "Resource type #{self.class.name} does not support parameter #{name}"
  end

  if provider and ! provider.class.supports_parameter?(klass)
    missing = klass.required_features.find_all { |f| ! provider.class.feature?(f) }
    debug "Provider %s does not support features %s; not managing attribute %s" % [provider.class.name, missing.join(", "), name]
    return nil
  end

  return @parameters[name] if @parameters.include?(name)

  @parameters[name] = klass.new(:resource => self)
end

#noop? ⇒ Boolean

Returns the ‘noop` run mode status of this.

Returns:

  • (Boolean) —

    true if running in noop mode.



1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
 
# File 'lib/puppet/type.rb', line 1129

def noop?
  # If we're not a host_config, we're almost certainly part of
  # Settings, and we want to ignore 'noop'
  return false if catalog and ! catalog.host_config?

  if defined?(@noop)
    @noop
  else
    Puppet[:noop]
  end
end

#parameter(name) ⇒ Object

Returns the value of this object’s parameter given by name

Parameters:

  • name (String) —

    the name of the parameter

Returns:



803
804
805
 
# File 'lib/puppet/type.rb', line 803

def parameter(name)
  @parameters[name.to_sym]
end

#parameters ⇒ Hash{String => Object}

Returns a shallow copy of this object’s hash of attributes by name. Note that his not only comprises parameters, but also properties and metaparameters. Changes to the contained parameters will have an effect on the parameters of this type, but changes to the returned hash does not.

Returns:

  • (Hash{String => Object}) —

    a new hash being a shallow copy of the parameters map name to parameter



812
813
814
 
# File 'lib/puppet/type.rb', line 812

def parameters
  @parameters.dup
end

#parameters_with_value ⇒ Array<Puppet::Parameter>

Return the parameters, metaparams, and properties that have a value or were set by a default. Properties are included since they are a subclass of parameter.

Returns:



724
725
726
 
# File 'lib/puppet/type.rb', line 724

def parameters_with_value
  self.class.allattrs.collect { |attr| parameter(attr) }.compact
end

#parent ⇒ Puppet::Type?

Returns the parent of this in the catalog. In case of an erroneous catalog where multiple parents have been produced, the first found (non deterministic) parent is returned.

Returns:

  • (Puppet::Type, nil) —

    the containing resource or nil if there is no catalog or no containing resource.



2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
 
# File 'lib/puppet/type.rb', line 2518

def parent
  return nil unless catalog
  return @parent if @parent
  parents = catalog.adjacent(self, :direction => :in)
  @parent = if parents
    parents.shift
  else
    nil
  end
end

#path ⇒ String

Returns a string representation of the resource’s containment path in the catalog.

Returns:

  • (String) 


796
797
798
 
# File 'lib/puppet/type.rb', line 796

def path
  @path ||= '/' + pathbuilder.join('/')
end

#pathbuilder ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns an array of strings representing the containment hierarchy (types/classes) that make up the path to the resource from the root of the catalog. This is mostly used for logging purposes.



1227
1228
1229
1230
1231
1232
1233
1234
 
# File 'lib/puppet/type.rb', line 1227

def pathbuilder
  p = parent
  if p
    [p.pathbuilder, self.ref].flatten
  else
    [self.ref]
  end
end

#pre_run_check ⇒ void

This method is abstract.

a resource type may implement this method to perform validation checks that can query the complete catalog

This method returns an undefined value.

Lifecycle method for a resource. This is called during graph creation. It should perform any consistency checking of the catalog and raise a Puppet::Error if the transaction should be aborted.

It differs from the validate method, since it is called later during initialization and can rely on self.catalog to have references to all resources that comprise the catalog.

Raises:

See Also:

  • Puppet::Transaction#add_vertex


1023
1024
 
# File 'lib/puppet/type.rb', line 1023

def pre_run_check
end

#present?(current_values) ⇒ Boolean

Given the hash of current properties, should this resource be treated as if it currently exists on the system. May need to be overridden by types that offer up more than just :absent and :present.

Returns:

  • (Boolean) 


1098
1099
1100
 
# File 'lib/puppet/type.rb', line 1098

def present?(current_values)
  current_values[:ensure] != :absent
end

#properties ⇒ Array<Puppet::Property>

TODO:

“what does the ‘order specified in the class’ mean? The order the properties where added in the ruby file adding a new type with new properties?

Returns all of the property objects, in the order specified in the class.

Returns:

  • (Array<Puppet::Property>) —

    Returns all of the property objects, in the order specified in the class.



918
919
920
 
# File 'lib/puppet/type.rb', line 918

def properties
  self.class.properties.collect { |prop| @parameters[prop.name] }.compact
end

#property(name) ⇒ Puppet::Property

TODO:

LAK:NOTE(20081028) Since the ‘parameter’ method is now a superset of this method, this one should probably go away at some point. - Does this mean it should be deprecated ?

Returns a Property instance by name. To return the value, use ‘resource’

Returns:

  • (Puppet::Property) —

    the property with the given name, or nil if not a property or does not exist.



828
829
830
831
832
833
834
835
 
# File 'lib/puppet/type.rb', line 828

def property(name)
  obj = @parameters[name.intern]
  if obj && obj.is_a?(Puppet::Property)
    obj
  else
    nil
  end
end

#propertydefined?(name) ⇒ Boolean

Returns whether the attribute given by name has been added to this resource or not.

Returns:

  • (Boolean) —

    Returns whether the attribute given by name has been added to this resource or not.



818
819
820
821
 
# File 'lib/puppet/type.rb', line 818

def propertydefined?(name)
  name = name.intern unless name.is_a? Symbol
  @parameters.include?(name)
end

#purging ⇒ Object

TODO:

what does this mean; “mark that we are purging” (purging what from where). How to use/when? Is this internal API in transactions?

Marks the object as “being purged”. This method is used by transactions to forbid deletion when there are dependencies.

See Also:



2551
2552
2553
 
# File 'lib/puppet/type.rb', line 2551

def purging
  @purging = true
end

#purging? ⇒ Boolean

Returns whether this resource is being purged or not. This method is used by transactions to forbid deletion when there are dependencies.

Returns:

  • (Boolean) —

    the current “purging” state



2559
2560
2561
2562
2563
2564
2565
 
# File 'lib/puppet/type.rb', line 2559

def purging?
  if defined?(@purging)
    @purging
  else
    false
  end
end

#ref ⇒ String

Returns a reference to this as a string in “Type” format.

Returns:

  • (String) —

    a reference to this object on the form ‘Type’



2532
2533
2534
2535
2536
 
# File 'lib/puppet/type.rb', line 2532

def ref
  # memoizing this is worthwhile ~ 3 percent of calls are the "first time
  # around" in an average run of Puppet. --daniel 2012-07-17
  @ref ||= "#{self.class.name.to_s.capitalize}[#{self.title}]"
end

#remove ⇒ void

TODO:

removes if from where?

This method returns an undefined value.

Removes this object (FROM WHERE?)



982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
 
# File 'lib/puppet/type.rb', line 982

def remove()
  # This is hackish (mmm, cut and paste), but it works for now, and it's
  # better than warnings.
  @parameters.each do |name, obj|
    obj.remove
  end
  @parameters.clear

  @parent = nil

  # Remove the reference to the provider.
  if self.provider
    @provider.clear
    @provider = nil
  end
end

#retrieve ⇒ Puppet::Resource

TODO:

As opposed to all non contained properties? How is this different than any of the other methods that also “gets” properties/parameters/etc. ?

Retrieves the current value of all contained properties. Parameters and meta-parameters are not included in the result.

Returns:

Raises:

  • (fail???) —

    if there is a provider and it is not suitable for the host this is evaluated for.



1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
 
# File 'lib/puppet/type.rb', line 1048

def retrieve
  fail "Provider #{provider.class.name} is not functional on this host" if self.provider.is_a?(Puppet::Provider) and ! provider.class.suitable?

  result = Puppet::Resource.new(self.class, title)

  # Provide the name, so we know we'll always refer to a real thing
  result[:name] = self[:name] unless self[:name] == title

  ensure_prop = property(:ensure)
  if !ensure_prop && self.class.needs_ensure_retrieved && self.class.validattr?(:ensure)
    ensure_prop = newattr(:ensure)
  end

  if ensure_prop
    result[:ensure] = ensure_state = ensure_prop.retrieve
  else
    ensure_state = nil
  end

  properties.each do |property|
    next if property.name == :ensure
    if ensure_state == :absent
      result[property] = :absent
    else
      result[property] = property.retrieve
    end
  end

  result
end

#retrieve_resource ⇒ Puppet::Resource

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Retrieve the current state of the system as a Puppet::Resource. For the base Puppet::Type this does the same thing as #retrieve, but specific types are free to implement #retrieve as returning a hash, and this will call #retrieve and convert the hash to a resource. This is used when determining when syncing a resource.

Returns:

  • (Puppet::Resource) —

    A resource representing the current state of the system.



1089
1090
1091
1092
1093
 
# File 'lib/puppet/type.rb', line 1089

def retrieve_resource
  resource = retrieve
  resource = Resource.new(self.class, title, :parameters => resource) if resource.is_a? Hash
  resource
end

#self_refresh? ⇒ Boolean

TODO:

check that meaningful yardoc is produced - this method delegates to “self.class.self_refresh”

Returns:

  • (Boolean) —

    true if the type should send itself a refresh event on change.

  • (Boolean) —

    • ??? returns true when … what?



2542
2543
2544
 
# File 'lib/puppet/type.rb', line 2542

def self_refresh?
  self.class.self_refresh
end

#set_default(attr) ⇒ void

TODO:

comment says “For any parameters or properties that have defaults and have not yet been set, set them now. This method can be handed a list of attributes, and if so it will only set defaults for those attributes.”

TODO:

Needs a better explanation, and investigation about the claim an array can be passed (it is passed to self.class.attrclass to produce a class on which a check is made if it has a method class :default (does not seem to support an array…

This method returns an undefined value.



845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
 
# File 'lib/puppet/type.rb', line 845

def set_default(attr)
  klass = self.class.attrclass(attr)
  return unless klass
  # TODO this is not a necessary check, as we define a class level attr_reader
  return unless klass.method_defined?(:default)
  return if @parameters.include?(klass.name)

  parameter = newattr(klass.name)
  return unless parameter

  value = parameter.default
  if value and ! value.nil?
    parameter.value = value
  else
    @parameters.delete(parameter.name)
  end
end

#should(name) ⇒ Object?

Returns the ‘should’ (wanted state) value for a specified property, or nil if the given attribute name is not a property (i.e. if it is a parameter, meta-parameter, or does not exist).

Returns:

  • (Object, nil) —

    Returns the ‘should’ (wanted state) value for a specified property, or nil if the given attribute name is not a property (i.e. if it is a parameter, meta-parameter, or does not exist).



749
750
751
752
753
754
755
756
 
# File 'lib/puppet/type.rb', line 749

def should(name)
  prop = @parameters[name.intern]
  if prop && prop.is_a?(Puppet::Property)
    prop.should
  else
    nil
  end
end

#suitable? ⇒ Boolean

Returns true if this is something else than a ‘:provider`, or if it is a provider and it is suitable, or if there is a default provider. Otherwise, false is returned.

Returns:

  • (Boolean) —

    Returns true if this is something else than a ‘:provider`, or if it is a provider and it is suitable, or if there is a default provider. Otherwise, false is returned.



1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
 
# File 'lib/puppet/type.rb', line 1928

def suitable?
  # If we don't use providers, then we consider it suitable.
  return true unless self.class.paramclass(:provider)

  # We have a provider and it is suitable.
  return true if provider && provider.class.suitable?

  # We're using the default provider and there is one.
  if !provider and self.class.defaultprovider
    self.provider = self.class.defaultprovider.name
    return true
  end

  # We specified an unsuitable provider, or there isn't any suitable
  # provider.
  false
end

#tags=(list) ⇒ void

This method returns an undefined value.

Sets the initial list of tags to associate to this resource.



2149
2150
2151
2152
 
# File 'lib/puppet/type.rb', line 2149

def tags=(list)
  tag(self.class.name)
  tag(*list)
end

#to_hash ⇒ Hash{ ??? => ??? }

TODO:

the comment says: “Convert our object to a hash. This just includes properties.”

TODO:

this is confused, again it is the @parameters instance variable that is consulted, and each value is copied - does it contain “properties” and “parameters” or both? Does it contain meta-parameters?

Returns a hash of WHAT?. The hash is a shallow copy, any changes to the objects returned in this hash will be reflected in the original resource having these attributes.

Returns:

  • (Hash{ ??? => ??? }) —

    a hash of WHAT?. The hash is a shallow copy, any changes to the objects returned in this hash will be reflected in the original resource having these attributes.



871
872
873
874
875
876
877
878
879
 
# File 'lib/puppet/type.rb', line 871

def to_hash
  rethash = {}

  @parameters.each do |name, obj|
    rethash[name] = obj.value
  end

  rethash
end

#to_resource ⇒ Puppet::Resource

Convert this resource type instance to a Puppet::Resource.

Returns:



2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
 
# File 'lib/puppet/type.rb', line 2600

def to_resource
  resource = self.retrieve_resource
  resource.merge_tags_from(self)

  @parameters.each do |name, param|
    # Avoid adding each instance name twice
    next if param.class.isnamevar? and param.value == self.title

    # We've already got property values
    next if param.is_a?(Puppet::Property)
    resource[name] = param.value
  end

  resource
end

#to_s ⇒ Object

Produces a reference to this in reference format.

See Also:



2593
2594
2595
 
# File 'lib/puppet/type.rb', line 2593

def to_s
  self.ref
end

#type ⇒ String

TODO:

Would that be “file” for the “File” resource type? of “File” or something else?

Returns the name of this object’s class.

Returns:

  • (String) —

    the name of this object’s class



884
885
886
 
# File 'lib/puppet/type.rb', line 884

def type
  self.class.name
end

#uniqueness_key ⇒ Object

Produces a resource’s uniqueness_key (or composite key). This key is an array of all key attributes’ values. Each distinct tuple must be unique for each resource type.

Returns:

  • (Object) —

    an object that is a uniqueness_key for this object

See Also:



441
442
443
 
# File 'lib/puppet/type.rb', line 441

def uniqueness_key
  self.class.key_attributes.sort_by { |attribute_name| attribute_name.to_s }.map{ |attribute_name| self[attribute_name] }
end

#validate_resource ⇒ void

This method returns an undefined value.

Optionally validate the resource. This method is a noop if the type has not defined a ‘validate` method using the puppet DSL. If validation fails, then an exception will be raised with this resources as the context.



2363
2364
2365
2366
2367
2368
2369
2370
2371
 
# File 'lib/puppet/type.rb', line 2363

def validate_resource
  begin
    self.validate if self.respond_to?(:validate)
  rescue Puppet::Error, ArgumentError => detail
    error = Puppet::ResourceError.new("Validation of #{ref} failed: #{detail}")
    adderrorcontext(error, detail)
    raise error
  end
end

#value(name) ⇒ Object?

TODO:

Comment says “Return a specific value for an attribute.”, as opposed to what “An unspecific value”???

TODO:

is this the ‘is’ or the ‘should’ value?

TODO:

why is the return restricted to things that respond to :value? (Only non structural basic data types supported?

Returns the value of the attribute having the given name, or nil if the given name is not an attribute, or the referenced attribute does not respond to ‘:value`.

Returns:

  • (Object, nil) —

    the value of the attribute having the given name, or nil if the given name is not an attribute, or the referenced attribute does not respond to ‘:value`.



895
896
897
898
899
900
901
902
903
904
 
# File 'lib/puppet/type.rb', line 895

def value(name)
  name = name.intern

  obj = @parameters[name]
  if obj && obj.respond_to?(:value)
    obj.value
  else
    nil
  end
end

#version ⇒ ???

TODO:

What is this used for? Needs a better explanation.

Returns the version of the catalog or 0 if there is no catalog.

Returns:

  • (???) —

    the version of the catalog or 0 if there is no catalog.



908
909
910
911
 
# File 'lib/puppet/type.rb', line 908

def version
  return 0 unless catalog
  catalog.version
end

#virtual? ⇒ Boolean

Returns whether the resource is virtual or not

Returns:

  • (Boolean) —

    Returns whether the resource is virtual or not



2617
 
# File 'lib/puppet/type.rb', line 2617

def virtual?;  !!@virtual;  end