Merge pull request #1786 from rnt/fix/calling-yajl-parser-only-once

Calling yajl parser only once

1 files changed, 36 insertions, 0 deletions

diff --git a/lib/ohai/mixin/json_helper.rb b/lib/ohai/mixin/json_helper.rb
new file mode 100644
index 00000000..5ca9aae7
--- /dev/null
+++ b/lib/ohai/mixin/json_helper.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+#
+# Author:: Renato Covarrubias (<rnt@rnt.cl>)
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+module Ohai
+  module Mixin
+    module JsonHelper
+      # parse JSON data from a String to a Hash
+      #
+      # @param [String] response_body json as string to parse
+      # @param [Object] return_on_parse_error value to return if parsing fails
+      #
+      # @return [Hash]
+      def parse_json(response_body, return_on_parse_error = nil)
+        data = String(response_body)
+        parser = FFI_Yajl::Parser.new
+        parser.parse(data)
+      rescue FFI_Yajl::ParseError
+        return_on_parse_error
+      end
+    end
+  end
+end