Class: Wavefront::Metadata

Inherits:
Object
  • Object
show all
Includes:
Constants
Defined in:
lib/wavefront/metadata.rb

Constant Summary collapse

DEFAULT_PATH = 
'/api/manage/source/'

Constants included from Constants

Constants::ALERT_FORMATS, Constants::DEFAULT_ALERT_FORMAT, Constants::DEFAULT_FORMAT, Constants::DEFAULT_HOST, Constants::DEFAULT_INFILE_FORMAT, Constants::DEFAULT_OBSOLETE_METRICS, Constants::DEFAULT_PERIOD_SECONDS, Constants::DEFAULT_PREFIX_LENGTH, Constants::DEFAULT_PROXY, Constants::DEFAULT_PROXY_PORT, Constants::DEFAULT_STRICT, Constants::EVENT_LEVELS, Constants::EVENT_STATE_DIR, Constants::FORMATS, Constants::GRANULARITIES

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(token, host = DEFAULT_HOST, debug = false) ⇒ Metadata

Returns a new instance of Metadata.



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# File 'lib/wavefront/metadata.rb', line 31

def initialize(token, host=DEFAULT_HOST, debug=false)
  @headers = {'X-AUTH-TOKEN' => token}
  @base_uri = URI::HTTPS.build(:host => host, :path => DEFAULT_PATH)
  debug(debug)
end

Instance Attribute Details

#base_uri ⇒ Object (readonly)

Returns the value of attribute base_uri.



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# File 'lib/wavefront/metadata.rb', line 29

def base_uri
  @base_uri
end

#headers ⇒ Object (readonly)

Returns the value of attribute headers.



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# File 'lib/wavefront/metadata.rb', line 29

def headers
  @headers
end

Instance Method Details

#add_tags(hostnames, tags) ⇒ Object 



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# File 'lib/wavefront/metadata.rb', line 61

def add_tags(hostnames, tags)
  
  # Build and call tagging URI for each host and tag.
  hostnames.each do |hostname|
    host_uri = URI.join(@base_uri.to_s,"#{hostname}/")
    extended_uri = URI.join(host_uri.to_s,"tags/")        
    tags.each do |tag|
      final_uri = URI.join(extended_uri.to_s,tag)
      RestClient.post(final_uri.to_s, {}, @headers)
    end
  end

end

#get_tags(hostname = '', limit = 100) ⇒ Object 



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# File 'lib/wavefront/metadata.rb', line 37

def get_tags(hostname='', limit=100)
  uri = @base_uri
  
  unless hostname.empty?
    uri = URI.join(@base_uri.to_s, hostname)
  end

  if limit > 10000
    limit = 10000
  end
  
  args = {:params => {:limit => limit}}.merge(@headers)
  
  begin
    response = RestClient.get(uri.to_s, args)
  rescue RestClient::ResourceNotFound
    # If a 404 is returned, we return an empty JSON as this is the expected behaviour for untagged hosts
    response = {}        
  end

  return response
 
end

#remove_tags(hostnames, tags, options = {}) ⇒ Object 



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# File 'lib/wavefront/metadata.rb', line 75

def remove_tags(hostnames, tags, options={})
      
  hostnames.each do |hostname|
    host_uri = URI.join(@base_uri.to_s,"#{hostname}/")
    extended_uri = URI.join(host_uri.to_s,"tags/")
    tags.each do |tag|
      final_uri = URI.join(extended_uri.to_s,tag)
      RestClient.delete(final_uri.to_s, @headers)
    end
  end

end