Module: Puppet::Pops::Lookup Private
- Defined in:
- lib/puppet/pops/lookup.rb,
lib/puppet/pops/lookup/context.rb,
lib/puppet/pops/lookup/explainer.rb,
lib/puppet/pops/lookup/invocation.rb,
lib/puppet/pops/lookup/lookup_key.rb,
lib/puppet/pops/lookup/sub_lookup.rb,
lib/puppet/pops/lookup/data_adapter.rb,
lib/puppet/pops/lookup/hiera_config.rb,
lib/puppet/pops/lookup/data_provider.rb,
lib/puppet/pops/lookup/interpolation.rb,
lib/puppet/pops/lookup/lookup_adapter.rb,
lib/puppet/pops/lookup/function_provider.rb,
lib/puppet/pops/lookup/location_resolver.rb,
lib/puppet/pops/lookup/global_data_provider.rb,
lib/puppet/pops/lookup/module_data_provider.rb,
lib/puppet/pops/lookup/configured_data_provider.rb,
lib/puppet/pops/lookup/environment_data_provider.rb,
lib/puppet/pops/lookup/data_dig_function_provider.rb,
lib/puppet/pops/lookup/data_hash_function_provider.rb,
lib/puppet/pops/lookup/lookup_key_function_provider.rb
This module is part of a private API. You should avoid using this module if possible, as it may be removed or be changed in the future.
Defined Under Namespace
Modules: DataProvider, Interpolation, LocationResolver, SubLookup Classes: ConfiguredDataProvider, Context, DataAdapter, DataDigFunctionProvider, DataHashFunctionProvider, DebugExplainer, EnvironmentContext, EnvironmentDataProvider, ExplainDataProvider, ExplainGlobal, ExplainInterpolate, ExplainInvalidKey, ExplainKeySegment, ExplainLocation, ExplainMerge, ExplainMergeSource, ExplainModule, ExplainNode, ExplainScope, ExplainSubLookup, ExplainTop, ExplainTreeNode, Explainer, FunctionContext, FunctionProvider, GlobalDataProvider, HieraConfig, HieraConfigV3, HieraConfigV4, HieraConfigV5, Invocation, KeyRecorder, LookupAdapter, LookupKey, LookupKeyFunctionProvider, ModuleDataProvider, ResolvedLocation, ScopeLookupCollectingInvocation, V3BackendFunctionProvider, V3DataHashFunctionProvider, V3LookupKeyFunctionProvider, V4DataHashFunctionProvider
Constant Summary collapse
- LOOKUP_OPTIONS =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
'lookup_options'- GLOBAL =
This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.
'__global__'
Class Method Summary collapse
- .debug_preamble(names) ⇒ Object private
- .lookup(name, value_type, default_value, has_default, merge, lookup_invocation) ⇒ Object private
Performs a lookup in the configured scopes and optionally merges the default.
- .search_and_merge(name, lookup_invocation, merge, apl = true) ⇒ Object private
Class Method Details
.debug_preamble(names) ⇒ 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.
71 72 73 74 75 76 77 78 | # File 'lib/puppet/pops/lookup.rb', line 71 def self.debug_preamble(names) if names.size == 1 names = "'#{names[0]}'" else names = names.map { |n| "'#{n}'" }.join(', ') end "Lookup of #{names}" end |
.lookup(name, value_type, default_value, has_default, merge, lookup_invocation) ⇒ 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.
Performs a lookup in the configured scopes and optionally merges the default.
This is a backing function and all parameters are assumed to have been type checked. See puppet/functions/lookup.rb for full documentation and all parameter combinations.
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | # File 'lib/puppet/pops/lookup.rb', line 24 def self.lookup(name, value_type, default_value, has_default, merge, lookup_invocation) names = name.is_a?(Array) ? name : [name] # find first name that yields a non-nil result and wrap it in a two element array # with name and value. not_found = MergeStrategy::NOT_FOUND override_values = lookup_invocation.override_values result_with_name = [nil, not_found] names.each do |key| value = override_values.include?(key) ? assert_type(["Value found for key '%s' in override hash", key], value_type, override_values[key]) : not_found catch(:no_such_key) { value = search_and_merge(key, lookup_invocation, merge, false) } if value.equal?(not_found) next if value.equal?(not_found) result_with_name = [key, assert_type('Found value', value_type, value)] break end # Use the 'default_values' hash as a last resort if nothing is found if result_with_name[1].equal?(not_found) default_values = lookup_invocation.default_values unless default_values.empty? names.each do |key| value = default_values.include?(key) ? assert_type(["Value found for key '%s' in default values hash", key], value_type, default_values[key]) : not_found next if value.equal?(not_found) result_with_name = [key, value] break end end end answer = result_with_name[1] if answer.equal?(not_found) if block_given? answer = assert_type('Value returned from default block', value_type, yield(name)) elsif has_default answer = assert_type('Default value', value_type, default_value) else lookup_invocation.emit_debug_info(debug_preamble(names)) if Puppet[:debug] fail_lookup(names) end end lookup_invocation.emit_debug_info(debug_preamble(names)) if Puppet[:debug] answer end |
.search_and_merge(name, lookup_invocation, merge, apl = true) ⇒ 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.
81 82 83 84 85 | # File 'lib/puppet/pops/lookup.rb', line 81 def self.search_and_merge(name, lookup_invocation, merge, apl = true) answer = lookup_invocation.lookup_adapter.lookup(name, lookup_invocation, merge) lookup_invocation.emit_debug_info("Automatic Parameter Lookup of '#{name}'") if apl && Puppet[:debug] answer end |