Class: HealthCheck::MiddlewareHealthcheck

Inherits:
Object
  • Object
show all
Defined in:
lib/health_check/middleware_health_check.rb

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ MiddlewareHealthcheck

Returns a new instance of MiddlewareHealthcheck.



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# File 'lib/health_check/middleware_health_check.rb', line 4

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/health_check/middleware_health_check.rb', line 8

def call(env)
  uri = env['PATH_INFO']
  if uri =~ /^\/?#{HealthCheck.uri}\/([-_0-9a-zA-Z]*)middleware_?([-_0-9a-zA-Z]*)(\.(\w*))?/
    checks = $1 + ($1 != '' && $2 != '' ? '_' : '') + $2
    checks = 'standard' if checks == ''
    response_type = $4
    begin
      errors = HealthCheck::Utils.process_checks(checks)
    rescue => e
      errors = e.message.blank? ? e.class.to_s : e.message.to_s
    end
    healthy = errors.blank?
    msg = healthy ? HealthCheck.success : "health_check failed: #{errors}"
    if response_type == 'xml'
      content_type = 'text/xml'
      msg = { healthy: healthy, message: msg }.to_xml
    elsif response_type == 'json'
      content_type = 'application/json'
      msg = { healthy: healthy, message: msg }.to_json
    else
      content_type = 'text/plain'
    end
    [ (healthy ? 200 : 500), { 'Content-Type' => content_type }, [msg] ]
  else
    @app.call(env)
  end
end