Initial checkin of gRPC to third_party/

third_party/grpc/src/ruby/lib/grpc/logconfig.rb

Index: third_party/grpc/src/ruby/lib/grpc/logconfig.rb
diff --git a/third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb b/third_party/grpc/src/ruby/lib/grpc/logconfig.rb
similarity index 66%
copy from third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb
copy to third_party/grpc/src/ruby/lib/grpc/logconfig.rb
index e10266ba2f3637d655c2de89c285558c987c613b..6b442febcb77a97284c3595ba925242caa275953 100644
--- a/third_party/protobuf/ruby/lib/google/protobuf/message_exts.rb
+++ b/third_party/grpc/src/ruby/lib/grpc/logconfig.rb
@@ -1,6 +1,5 @@
-# Protocol Buffers - Google's data interchange format
-# Copyright 2008 Google Inc.  All rights reserved.
-# https://developers.google.com/protocol-buffers/
+# Copyright 2015, Google Inc.
+# All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
@@ -28,26 +27,33 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-module Google
-  module Protobuf
-    module MessageExts
+# GRPC contains the General RPC module.
+module GRPC
+  # DefaultLogger is a module included in GRPC if no other logging is set up for
+  # it.  See ../spec/spec_helpers an example of where other logging is added.
+  module DefaultLogger
+    def logger
+      LOGGER
+    end
 
-      #this is only called in jruby; mri loades the ClassMethods differently
-      def self.included(klass)
-        klass.extend(ClassMethods)
-      end
+    private
 
-      module ClassMethods
+    # NoopLogger implements the methods of Ruby's conventional logging interface
+    # that are actually used internally within gRPC with a noop implementation.
+    class NoopLogger
+      def info(_ignored)
       end
 
-      def to_json
-        self.class.encode_json(self)
+      def debug(_ignored)
       end
 
-      def to_proto
-        self.class.encode(self)
+      def warn(_ignored)
       end
-
     end
+
+    LOGGER = NoopLogger.new
   end
+
+  # Inject the noop #logger if no module-level logger method has been injected.
+  extend DefaultLogger unless methods.include?(:logger)
 end