Module: ElasticsearchQuery

Included in:
ElasticsearchCommon
Defined in:
lib/sensu-plugins-elasticsearch/elasticsearch-query.rb

Overview

DESCRIPTION:

Common search helper methods

DEPENDENCIES:

gem: elasticsearch
gem: sensu-plugin

USAGE:

NOTES:

LICENSE:

Brendan Gibat <[email protected]>
Released under the same terms as Sensu (the MIT license); see LICENSE
for details.

Instance Method Summary collapse

Instance Method Details

#build_request_options ⇒ Object 



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# File 'lib/sensu-plugins-elasticsearch/elasticsearch-query.rb', line 63

def build_request_options
  end_time = (Time.now.utc - config[:offset])
  options = {

    index: indices(end_time),
    ignore_unavailable: true
  }

  unless config[:ignore_unavailable].nil?
    options[:ignore_unavailable] = config[:ignore_unavailable]
  end

  unless config[:id].nil?
    options[:id] = config[:id]
  end

  if !config[:body].nil?
    options[:body] = config[:body]
  elsif config[:aggr] == true
    es_date_start = es_date_math_string end_time
    options[:size] = 0
    options[:body] = {
      'query' => {
        'bool' => {
          'must' => [{
            'query_string' => {
              'default_field' => config[:search_field],
              'query' => config[:query]
            }
          }, {
            'range' => {
              config[:timestamp_field] => {
                'gt' => es_date_start,
                'lt' => end_time.strftime('%Y-%m-%dT%H:%M:%S')
              }
            }
          }]
        }
      },
      'aggregations' => {
        'average' => { 'avg' => { 'field' => config[:aggr_field] } }
      }
    }
  else
    es_date_start = es_date_math_string end_time
    unless es_date_start.nil?
      options[:body] = {
        'query' => {
          'bool' => {
            'must' => [{
              'query_string' => {
                'default_field' => config[:search_field],
                'query' => config[:query]
              }
            }, {
              'range' => {
                config[:timestamp_field] => {
                  'gt' => es_date_start,
                  'lt' => end_time.strftime('%Y-%m-%dT%H:%M:%S')
                }
              }
            }]
          }
        }
      }
    end
  end
  unless config[:types].nil?
    options[:type] = config[:types]
  end
  options
end

#es_date_math_string(end_time) ⇒ Object 



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# File 'lib/sensu-plugins-elasticsearch/elasticsearch-query.rb', line 136

def es_date_math_string(end_time)
  if config[:minutes_previous].zero? && \
     config[:hours_previous].zero? && \
     config[:days_previous].zero? && \
     config[:weeks_previous].zero? && \
     config[:months_previous].zero?
    nil
  else
    es_math = "#{end_time.strftime '%Y-%m-%dT%H:%M:%S'}||"
    es_math += "-#{config[:minutes_previous]}m" if config[:minutes_previous] != 0
    es_math += "-#{config[:hours_previous]}h" if config[:hours_previous] != 0
    es_math += "-#{config[:days_previous]}d" if config[:days_previous] != 0
    es_math += "-#{config[:weeks_previous]}w" if config[:weeks_previous] != 0
    es_math += "-#{config[:months_previous]}M" if config[:months_previous] != 0
    es_math
  end
end

#indices(end_time) ⇒ Object 



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# File 'lib/sensu-plugins-elasticsearch/elasticsearch-query.rb', line 24

def indices(end_time)
  if !config[:index].nil?
    return config[:index]
  elsif !config[:date_index].nil?
    indices = []

    curr = end_time.to_i
    start = curr

    if config[:minutes_previous] != 0
      start -= (config[:minutes_previous] * 60)
    end
    if config[:hours_previous] != 0
      start -= (config[:hours_previous] * 60 * 60)
    end
    if config[:days_previous] != 0
      start -= (config[:days_previous] * 60 * 60 * 24)
    end
    if config[:weeks_previous] != 0
      start -= (config[:weeks_previous] * 60 * 60 * 24 * 7)
    end
    if config[:months_previous] != 0
      start -= (config[:months_previous] * 60 * 60 * 24 * 7 * 31)
    end
    total = 60 * 60 * 24
    if config[:date_repeat_hourly]
      total = 60 * 60
    end
    (start.to_i..curr.to_i).step(total) do |step|
      indices.push(Time.at(step).utc.strftime config[:date_index])
    end
    unless indices.include?(Time.at(curr).utc.strftime config[:date_index])
      indices.push(Time.at(curr).utc.strftime config[:date_index])
    end
    return indices.join(',')
  end
  ['_all']
end

#initialize ⇒ Object 



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# File 'lib/sensu-plugins-elasticsearch/elasticsearch-query.rb', line 20

def initialize
  super()
end