Migrated multi-purpose Units (antipattern) to new simple provider structure.

lib/sequencer/sequence/import/exchange/folder_contact.rb

@@ -10,6 +10,7 @@ class Sequencer
               'Import::Exchange::FolderContact::Mapping',
               'Import::Common::Model::Skip::Blank::Mapped',
               'Import::Exchange::FolderContact::StaticAttributes',
+              'Import::Exchange::FolderContact::ExternalSyncSource',
               'Import::Common::Model::Lookup::ExternalSync',
               'Import::Common::Model::Associations::Extract',
               'Import::Common::User::Attributes::Downcase',

lib/sequencer/sequence/import/ldap/users.rb

@@ -7,6 +7,7 @@ class Sequencer
           def self.sequence
             [
               'Import::Ldap::Users::StaticAttributes',
+              'Import::Ldap::Users::ExternalSyncSource',
               'Import::Common::ImportJob::DryRun',
               'Import::Ldap::Users::DryRun::Payload',
               'Ldap::Config',

lib/sequencer/unit/import/exchange/folder_contact/external_sync_source.rb

@@ -0,0 +1,16 @@
+class Sequencer
+  class Unit
+    module Import
+      module Exchange
+        module FolderContact
+          class ExternalSyncSource < Sequencer::Unit::Common::Provider::Named
+
+            def external_sync_source
+              'Exchange::FolderContact'
+            end
+          end
+        end
+      end
+    end
+  end
+end

lib/sequencer/unit/import/exchange/folder_contact/static_attributes.rb

@@ -5,11 +5,10 @@ class Sequencer
         module FolderContact
           class StaticAttributes < Sequencer::Unit::Base
 
-            provides :model_class, :external_sync_source
+            provides :model_class
 
             def process
               state.provide(:model_class, ::User)
-              state.provide(:external_sync_source, 'Exchange::FolderContact')
             end
           end
         end

lib/sequencer/unit/import/ldap/users/external_sync_source.rb

@@ -0,0 +1,16 @@
+class Sequencer
+  class Unit
+    module Import
+      module Ldap
+        module Users
+          class ExternalSyncSource < Sequencer::Unit::Common::Provider::Named
+
+            def external_sync_source
+              'Ldap::User'
+            end
+          end
+        end
+      end
+    end
+  end
+end

lib/sequencer/unit/import/ldap/users/static_attributes.rb

@@ -4,11 +4,11 @@ class Sequencer
       module Ldap
         module Users
           class StaticAttributes < Sequencer::Unit::Base
-            provides :model_class, :external_sync_source
+
+            provides :model_class
 
             def process
               state.provide(:model_class, ::User)
-              state.provide(:external_sync_source, 'Ldap::User')
             end
           end
         end