add a logger option

Author: guillaumedenece

lib/salesforce_bulk_api.rb

@@ -11,11 +11,12 @@
 
 module SalesforceBulkApi
   class Api
-    attr_reader :connection
+    attr_reader :connection, :logger
 
     SALESFORCE_API_VERSION = '32.0'
 
-    def initialize(client)
+    def initialize(client, logger = nil)
+      @logger = logger
       @connection = SalesforceBulkApi::Connection.new(SALESFORCE_API_VERSION, client)
       @listeners = { job_created: [] }
     end

lib/salesforce_bulk_api/job.rb

@@ -88,6 +88,7 @@ def add_batch(keys, batch)
         xml += create_sobject(keys, r)
       end
       xml += '</sObjects>'
+      logger.info("Xml sent to salesforce: #{xml}") if logger
       path = "job/#{@job_id}/batch/"
       headers = Hash["Content-Type" => "application/xml; charset=UTF-8"]
       response = @connection.post_xml(nil, path, xml, headers)