class Hyperkit::Error
Custom error class for rescuing from all LXD errors
Public Class Methods
error_for_500(response)
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# File lib/hyperkit/error.rb, line 108 def self.error_for_500(response) if response.body =~ /open: no such file or directory/i Hyperkit::NotFound elsif response.body =~ /open: is a directory/i Hyperkit::BadRequest else Hyperkit::InternalServerError end end
from_async_operation(response)
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# File lib/hyperkit/error.rb, line 47 def self.from_async_operation(response) return nil if response.nil? || response[:body].empty? begin body = JSON.parse(response[:body]) rescue return nil end if body.has_key?("metadata") && body["metadata"].is_a?(Hash) status = body["metadata"]["status_code"].to_i from_status(response, status) end end
from_response(response)
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Returns the appropriate Hyperkit::Error
subclass based on status and response message
@param [Hash] response HTTP response @return [Hyperkit::Error]
# File lib/hyperkit/error.rb, line 33 def self.from_response(response) status = response[:status].to_i err = from_status(response, status) if err.nil? err = from_async_operation(response) end err end
from_status(response, status)
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# File lib/hyperkit/error.rb, line 64 def self.from_status(response, status) if klass = case status when 400 then Hyperkit::BadRequest when 401 then Hyperkit::Unauthorized when 403 then Hyperkit::Forbidden when 404 then Hyperkit::NotFound when 405 then Hyperkit::MethodNotAllowed when 406 then Hyperkit::NotAcceptable when 409 then Hyperkit::Conflict when 415 then Hyperkit::UnsupportedMediaType when 422 then Hyperkit::UnprocessableEntity when 400..499 then Hyperkit::ClientError when 500 then error_for_500(response) when 501 then Hyperkit::NotImplemented when 502 then Hyperkit::BadGateway when 503 then Hyperkit::ServiceUnavailable when 500..599 then Hyperkit::ServerError end klass.new(response) end end
new(response=nil)
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Calls superclass method
# File lib/hyperkit/error.rb, line 86 def initialize(response=nil) @response = response super(build_error_message) end
Public Instance Methods
documentation_url()
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Documentation URL returned by the API for some errors
@return [String]
# File lib/hyperkit/error.rb, line 94 def documentation_url data[:documentation_url] if data.is_a? Hash end
errors()
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Array of validation errors @return [Array<Hash>] Error
info
# File lib/hyperkit/error.rb, line 100 def errors if data && data.is_a?(Hash) data[:errors] || [] else [] end end
Private Instance Methods
build_error_message()
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# File lib/hyperkit/error.rb, line 170 def build_error_message return nil if @response.nil? message = "" if ! data.is_a?(Hash) || ! data[:metadata] || ! data[:metadata][:err] message = "#{@response[:method].to_s.upcase} " message << redact_url(@response[:url].to_s) + ": " end if data.is_a?(Hash) && data[:metadata] && data[:metadata][:status_code] message << "#{data[:metadata][:status_code]} - " else message << "#{@response[:status]} - " end message << "#{response_message}" unless response_message.nil? message << "#{response_error}" unless response_error.nil? message << "#{response_error_summary}" unless response_error_summary.nil? message << " // See: #{documentation_url}" unless documentation_url.nil? message end
data()
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# File lib/hyperkit/error.rb, line 122 def data @data ||= if (body = @response[:body]) && !body.empty? if body.is_a?(String) && @response[:response_headers] && @response[:response_headers][:content_type] =~ /json/ Sawyer::Agent.serializer.decode(body) else body end else nil end end
redact_url(url_string)
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# File lib/hyperkit/error.rb, line 193 def redact_url(url_string) %w[secret].each do |token| url_string.gsub!(/#{token}=\S+/, "#{token}=(redacted)") if url_string.include? token end url_string end
response_error()
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# File lib/hyperkit/error.rb, line 147 def response_error err = nil if data.is_a?(Hash) && data[:error] err = data[:error] elsif data.is_a?(Hash) && data[:metadata] err = data[:metadata][:err] end "Error: #{err}" if err end
response_error_summary()
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# File lib/hyperkit/error.rb, line 159 def response_error_summary return nil unless data.is_a?(Hash) && !Array(data[:errors]).empty? summary = "\nError summary:\n" summary << data[:errors].map do |hash| hash.map { |k,v| " #{k}: #{v}" } end.join("\n") summary end
response_message()
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# File lib/hyperkit/error.rb, line 138 def response_message case data when Hash data[:message] when String data end end