From e88fdbfef65b2f0e297cf05ce5191ba49035d493 Mon Sep 17 00:00:00 2001
From: "mattpok@google.com"
 <mattpok@google.com@c1d61fac-ed7f-fcc1-18f7-ff78120a04ef>
Date: Wed, 18 Aug 2010 21:39:44 +0000
Subject: [PATCH] add parser configuration to http transport, will add tests
 next commit

git-svn-id: https://google-api-ruby-client.googlecode.com/svn/trunk@18 c1d61fac-ed7f-fcc1-18f7-ff78120a04ef
---
 .../api_client/transport/http_transport.rb    | 50 ++++++++++++++++++-
 1 file changed, 49 insertions(+), 1 deletion(-)

diff --git a/lib/google/api_client/transport/http_transport.rb b/lib/google/api_client/transport/http_transport.rb
index 823dca714..8293d54a2 100644
--- a/lib/google/api_client/transport/http_transport.rb
+++ b/lib/google/api_client/transport/http_transport.rb
@@ -14,8 +14,56 @@
 
 module Google #:nodoc:
   class APIClient #:nodoc:
+      ##
+      # Factory for HTTP backed client requests.
     class HTTPTransport
-      
+
+      ##
+      # The default transport configuration values.  These may be overridden
+      # simply by passing in the same key to the constructor.
+      DEFAULTS = {
+        :parser => :json_parser
+      }
+
+      ##
+      # The default implementations of various parsers.  These may be overriden
+      # simply by passing the same key to the constructor.
+      PARSERS = {
+        :json_parser => JSONParser.new
+      }
+
+      ##
+      # Creates a new HTTP request factory.
+      #
+      # @param [Hash] options
+      # @return [Google::APIClient::Discovery] The HTTP request factory.
+      def initialize(options={})
+        @options = DEFAULTS.clone
+        @options.merge!(options)
+
+        # first check if user passed a parser then fallback on appropriate default
+        @parser = @options[@options[:parser]] || PARSERS[@options[:parser]]
+        unless @parser
+          raise ArgumentError,
+            'Invalid :parser configuration.'
+        end
+      end
+
+      ##
+      # Returns configuration of the transport.
+      #
+      # @return [Hash] The configuration options.
+      def options
+        return @options
+      end
+
+      ##
+      # Returns the parser used by the transport.
+      #
+      # @return The handle to the parser.
+      def parser
+       return @parser
+      end
     end
   end
 end