Class: OkComputer::SolrCheck

Inherits:
HttpCheck show all
Defined in:
lib/ok_computer/built_in_checks/solr_check.rb

Overview

This class performs a health check on Solr instance using the admin/ping handler.

Constant Summary

Constants inherited from HttpCheck

HttpCheck::ConnectionFailed

Constants inherited from Check

Check::CheckNotDefined

Instance Attribute Summary collapse

Attributes inherited from HttpCheck

#request_timeout, #url

Attributes inherited from Check

#failure_occurred, #message, #registrant_name

Instance Method Summary collapse

Methods inherited from HttpCheck

#perform_request

Methods inherited from Check

#clear, #mark_failure, #mark_message, #run, #success?, #to_json, #to_text

Constructor Details

#initialize(host, request_timeout = 5) ⇒ SolrCheck

Public: Initialize a new Solr check.

host - The hostname of Solr request_timeout - How long to wait to connect before timing out. Defaults to 5 seconds.



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# File 'lib/ok_computer/built_in_checks/solr_check.rb', line 11

def initialize(host, request_timeout = 5)
  @host = URI(host)
  ping_url ||= URI("#{host}/admin/ping")
  super(ping_url, request_timeout)
end

Instance Attribute Details

#host ⇒ Object (readonly)

Returns the value of attribute host.



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# File 'lib/ok_computer/built_in_checks/solr_check.rb', line 5

def host
  @host
end

Instance Method Details

#check ⇒ Object

Public: Return the status of Solr



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# File 'lib/ok_computer/built_in_checks/solr_check.rb', line 18

def check
  if ping?
    mark_message "Solr ping reported success"
  else
    mark_failure
    mark_message "Solr ping reported failure"
  end
rescue => e
  mark_failure
  mark_message "Error: '#{e}'"
end

#ping? ⇒ Boolean

Public: Returns true if Solr’s ping returned OK, otherwise false

Returns:

  • (Boolean) 


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# File 'lib/ok_computer/built_in_checks/solr_check.rb', line 31

def ping?
  response = perform_request
  !!(response =~ %r(<str name="status">OK</str>))
end