try again, with puppetforge modules, correctly included now

[dsa-puppet.git] / 3rdparty / modules / aviator / feature / aviator / core / request_builder.rb

diff --git a/3rdparty/modules/aviator/feature/aviator/core/request_builder.rb b/3rdparty/modules/aviator/feature/aviator/core/request_builder.rb
new file mode 100644 (file)
index 0000000..249cf16
--- /dev/null
+++ b/3rdparty/modules/aviator/feature/aviator/core/request_builder.rb
@@ -0,0 +1,89 @@
+module Aviator
+
+  class BaseRequestNotFoundError < StandardError
+    attr_reader :base_request_hierarchy
+
+    def initialize(base_hierarchy)
+      @base_request_hierarchy = base_hierarchy
+      super("#{ base_request_hierarchy } could not be found!")
+    end
+  end
+
+
+  class RequestAlreadyDefinedError < StandardError
+    attr_reader :namespace,
+                :request_name
+
+    def initialize(namespace, request_name)
+      @namespace = namespace
+      @request_name = request_name
+      super("#{ namespace }::#{ request_name } is already defined")
+    end
+  end
+
+
+  class RequestBuilder
+
+    class << self
+
+      def define_request(root_namespace, request_name, options, &block)
+        base_klass = get_request_class(root_namespace, options[:inherit])
+
+        klass = Class.new(base_klass, &block)
+
+        namespace_arr = [
+          klass.provider,
+          klass.service,
+          klass.api_version,
+          klass.endpoint_type
+        ]
+
+        namespace = namespace_arr.inject(root_namespace) do |namespace, sym|
+          const_name = sym.to_s.camelize
+          namespace.const_set(const_name, Module.new) unless namespace.const_defined?(const_name, false)
+          namespace.const_get(const_name, false)
+        end
+
+        klassname = request_name.to_s.camelize
+
+        if namespace.const_defined?(klassname, false)
+          raise RequestAlreadyDefinedError.new(namespace, klassname)
+        end
+
+        namespace.const_set(klassname, klass)
+      end
+
+
+      def get_request_class(root_namespace, request_class_arr)
+        request_class_arr.inject(root_namespace) do |namespace, sym|
+          namespace.const_get(sym.to_s.camelize, false)
+        end
+      rescue NameError => e
+        arr = ['..', '..'] + request_class_arr
+        arr[-1,1] = arr.last.to_s + '.rb'
+        path = Pathname.new(__FILE__).join(*arr.map{|i| i.to_s }).expand_path
+
+        if path.exist?
+          require path
+          request_class_arr.inject(root_namespace) do |namespace, sym|
+            namespace.const_get(sym.to_s.camelize, false)
+          end
+        else
+          raise BaseRequestNotFoundError.new(request_class_arr)
+        end
+      end
+
+    end
+
+  end
+
+
+  class << self
+
+    def define_request(request_name, options={ :inherit => [:request] }, &block)
+      RequestBuilder.define_request self, request_name, options, &block
+    end
+
+  end # class << self
+
+end
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