Merge pull request #8 from long-long-float/add-catalog-plugin

Add "catalog.fetch" command

lib/droonga/plugins/catalog.rb

@@ -0,0 +1,39 @@
+# Copyright (C) 2013-2014 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+require "droonga/plugin"
+
+module Droonga
+  module Plugins
+    module Catalog
+      extend Plugin
+      register("catalog")
+
+      class FetchHandler < Droonga::Handler
+        action.synchronous = false
+
+        def handle(message)
+          JSON.parse(Path.catalog.read)
+        end
+      end
+
+      define_single_step do |step|
+        step.name = "catalog.fetch"
+        step.handler = FetchHandler
+        step.collector = Collectors::Or
+      end
+    end
+  end
+end