Drop support for MultiJson

CHANGELOG.md

@@ -17,6 +17,10 @@
 *   Introduction of Kubernetes benchmark code
 *   Performance patch to Que locking
 
+### 0.13.0 (2017-06-08)
+
+*   Fix recurring JSON issues by dropping MultiJson support.
+
 ### 0.11.8 (2017-07-12)
 
 *   Serialise and deserialise job args when running in sync mode. (georgea93)

Gemfile

@@ -10,7 +10,6 @@ group :development, :test do
   gem 'activerecord',    require: nil
   gem 'connection_pool', require: nil
   gem 'gc_ruboconfig'
-  gem 'multi_json', '~> 1.21', require: nil
   gem 'pg', require: nil, platform: :ruby
   gem 'pg_jruby', require: nil, platform: :jruby
   gem 'pond', require: nil

lib/que.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require "json"
 require "socket" # For hostname
 
 require_relative "que/adapters/base"
@@ -17,14 +18,6 @@
 require_relative "que/middleware/worker_health_check"
 
 module Que
-  begin
-    require "multi_json"
-    JSON_MODULE = MultiJson
-  rescue LoadError
-    require "json"
-    JSON_MODULE = JSON
-  end
-
   HASH_DEFAULT_PROC = proc { |hash, key| hash[key.to_s] if key.is_a?(Symbol) }
 
   INDIFFERENTIATOR = proc do |object|

lib/que/adapters/base.rb

@@ -31,7 +31,7 @@ class Base
         # integer
         23 => proc(&:to_i),
         # json
-        114 => ->(value) { JSON_MODULE.parse(value, create_additions: false) },
+        114 => ->(value) { JSON.parse(value, create_additions: false) },
         # float
         701 => proc(&:to_f),
         # timestamp with time zone
@@ -74,7 +74,7 @@ def execute(command, params = [])
           # The pg gem unfortunately doesn't convert fractions of time instances, so cast
           # them to a string.
           when Time then param.strftime("%Y-%m-%d %H:%M:%S.%6N %z")
-          when Array, Hash then JSON_MODULE.generate(param)
+          when Array, Hash then JSON.generate(param)
           else param
           end
         end