adapter: split message configuration for input and output

Before:

    message.input_pattern  = []
    message.output_pattern = []

After:

    input_message.pattern  = []
    output_message.pattern = []

This is backward incompatible change but it is OK. Because we don't
release 1.0.0 yet.

lib/droonga/adapter.rb

@@ -14,15 +14,20 @@
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
 require "droonga/pluggable"
-require "droonga/plugin/metadata/adapter_message"
+require "droonga/plugin/metadata/adapter_input_message"
+require "droonga/plugin/metadata/adapter_output_message"
 
 module Droonga
   class Adapter
     extend Pluggable
 
     class << self
-      def message
-        Plugin::Metadata::AdapterMessage.new(self)
+      def input_message
+        Plugin::Metadata::AdapterInputMessage.new(self)
+      end
+
+      def output_message
+        Plugin::Metadata::AdapterOutputMessage.new(self)
       end
 
       def id

lib/droonga/adapter_runner.rb

@@ -40,7 +40,7 @@ def adapt_input(message)
       adapted_message["appliedAdapters"] = []
       @adapter_classes.each do |adapter_class|
         adapter_class_id = adapter_class.id
-        pattern = adapter_class.message.input_pattern
+        pattern = adapter_class.input_message.pattern
         if pattern
           matcher = MessageMatcher.new(pattern)
           $log.trace("#{log_tag}: adapt_input: skip: #{adapter_class_id}",
@@ -74,7 +74,7 @@ def adapt_output(message)
                      :applied_adapters => applied_adapters)
           next unless applied_adapters.include?(adapter_class.id)
         end
-        pattern = adapter_class.message.output_pattern
+        pattern = adapter_class.output_message.pattern
         if pattern
           matcher = MessageMatcher.new(pattern)
           $log.trace("#{log_tag}: adapt_output: skip: #{adapter_class_id}",

lib/droonga/plugin/metadata/adapter_message.rb → lib/droonga/plugin/metadata/adapter_input_message.rb

@@ -16,30 +16,22 @@
 module Droonga
   module Plugin
     module Metadata
-      class AdapterMessage
+      class AdapterInputMessage
         def initialize(adapter_class)
           @adapter_class = adapter_class
         end
 
-        def input_pattern
-          configuration[:input_pattern]
+        def pattern
+          configuration[:pattern]
         end
 
-        def input_pattern=(pattern)
-          configuration[:input_pattern] = pattern
-        end
-
-        def output_pattern
-          configuration[:output_pattern]
-        end
-
-        def output_pattern=(pattern)
-          configuration[:output_pattern] = pattern
+        def pattern=(pattern)
+          configuration[:pattern] = pattern
         end
 
         private
         def configuration
-          @adapter_class.options[:message] ||= {}
+          @adapter_class.options[:input_message] ||= {}
         end
       end
     end

lib/droonga/plugin/metadata/adapter_output_message.rb

@@ -0,0 +1,39 @@
+# Copyright (C) 2014 Droonga Project
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License version 2.1 as published by the Free Software Foundation.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+module Droonga
+  module Plugin
+    module Metadata
+      class AdapterOutputMessage
+        def initialize(adapter_class)
+          @adapter_class = adapter_class
+        end
+
+        def pattern
+          configuration[:pattern]
+        end
+
+        def pattern=(pattern)
+          configuration[:pattern] = pattern
+        end
+
+        private
+        def configuration
+          @adapter_class.options[:output_message] ||= {}
+        end
+      end
+    end
+  end
+end

lib/droonga/plugins/crud.rb

@@ -24,8 +24,8 @@ module CRUD
       Plugin.registry.register("crud", self)
 
       class Adapter < Droonga::Adapter
-        message.input_pattern  = ["type", :equal, "add"]
-        message.output_pattern = ["body.success", :exist]
+        input_message.pattern  = ["type", :equal, "add"]
+        output_message.pattern = ["body.success", :exist]
 
         def adapt_output(output_message)
           success = output_message.body["success"]

lib/droonga/plugins/error.rb

@@ -21,7 +21,7 @@ module Error
       Plugin.registry.register("error", self)
 
       class Adapter < Droonga::Adapter
-        message.output_pattern = ["body.errors", :exist]
+        output_message.pattern = ["body.errors", :exist]
 
         def adapt_output(output_message)
           errors = output_message.body["errors"]

lib/droonga/plugins/groonga/generic_response.rb

@@ -25,8 +25,8 @@ class Adapter < Droonga::Adapter
             "table_remove",
             "column_create",
           ]
-          message.input_pattern  = ["type", :in, groonga_commands]
-          message.output_pattern = ["body.result", :exist]
+          input_message.pattern  = ["type", :in, groonga_commands]
+          output_message.pattern = ["body.result", :exist]
 
           def adapt_output(output_message)
             output_message.body = output_message.body["result"]

lib/droonga/plugins/groonga/select.rb

@@ -101,7 +101,7 @@ def convert(search_response)
         end
 
         class Adapter < Droonga::Adapter
-          message.input_pattern = ["type", :equal, "select"]
+          input_message.pattern = ["type", :equal, "select"]
 
           def adapt_input(input_message)
             converter = RequestConverter.new