Class: Fluent::Plugin::MongoStorage

Inherits:
Storage
  • Object
show all
Includes:
LoggerSupport, MongoAuth, MongoAuthParams
Defined in:
lib/fluent/plugin/storage_mongo.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from LoggerSupport

#configure_logger, included

Methods included from MongoAuth

#authenticate

Methods included from MongoAuthParams

included

Constructor Details

#initialize ⇒ MongoStorage

Returns a new instance of MongoStorage.



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# File 'lib/fluent/plugin/storage_mongo.rb', line 49

def initialize
  super

  @client_options = {}
  @collection_options = {capped: false}
  @store = {}
end

Instance Attribute Details

#client_options ⇒ Object (readonly)

Returns the value of attribute client_options.



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# File 'lib/fluent/plugin/storage_mongo.rb', line 47

def client_options
  @client_options
end

#collection_options ⇒ Object (readonly)

Returns the value of attribute collection_options.



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# File 'lib/fluent/plugin/storage_mongo.rb', line 47

def collection_options
  @collection_options
end

#store ⇒ Object (readonly)

for test



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# File 'lib/fluent/plugin/storage_mongo.rb', line 11

def store
  @store
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/storage_mongo.rb', line 57

def configure(conf)
  super

  unless @path
    if conf && !conf.arg.empty?
      @path = conf.arg
    else
      raise Fluent::ConfigError, "path or conf.arg for <storage> is required."
    end
  end

  if conf.has_key?('capped') and Fluent::Config.bool_value(conf['capped'])
    raise Fluent::ConfigError, "'capped_size' parameter is required on <storage> of Mongo storage" unless conf.has_key?('capped_size')
    @collection_options[:capped] = true
    @collection_options[:size] = Fluent::Config.size_value(conf['capped_size'])
    @collection_options[:max] = Fluent::Config.size_value(conf['capped_max']) if conf.has_key?('capped_max')
  end

  @client_options[:write] = {j: @journaled}
  @client_options[:write].merge!({w: @write_concern}) unless @write_concern.nil?
  @client_options[:ssl] = @ssl

  if @ssl
    @client_options[:ssl_cert] = @ssl_cert
    @client_options[:ssl_key] = @ssl_key
    @client_options[:ssl_key_pass_phrase] = @ssl_key_pass_phrase
    @client_options[:ssl_verify] = @ssl_verify
    @client_options[:ssl_ca_cert] = @ssl_ca_cert
  end
  configure_logger(@mongo_log_level)

  @client = client
  @client = authenticate(@client)
end

#delete(key) ⇒ Object 



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# File 'lib/fluent/plugin/storage_mongo.rb', line 134

def delete(key)
  @store.delete(key.to_s)
end

#fetch(key, defval) ⇒ Object 



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# File 'lib/fluent/plugin/storage_mongo.rb', line 126

def fetch(key, defval)
  @store.fetch(key.to_s, defval)
end

#get(key) ⇒ Object 



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# File 'lib/fluent/plugin/storage_mongo.rb', line 122

def get(key)
  @store[key.to_s]
end

#load ⇒ Object 



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# File 'lib/fluent/plugin/storage_mongo.rb', line 96

def load
  begin
    value = {}
    documents = @client[format_collection_name(@collection)].find(_id: @path)
    if documents.count >= 1
      documents.each do |document|
        value.merge!(document)
      end
    end
    value.delete('_id') # just ignore '_id'

    unless value.is_a?(Hash)
      log.error "broken content for plugin storage (Hash required: ignored)", type: json.class
      log.debug "broken content", content: json_string
      return
    end
    @store = value
  rescue => e
    log.error "failed to load data for plugin storage from mongo", path: @path, error: e
  end
end

#multi_workers_ready? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/plugin/storage_mongo.rb', line 92

def multi_workers_ready?
  true
end

#put(key, value) ⇒ Object 



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# File 'lib/fluent/plugin/storage_mongo.rb', line 130

def put(key, value)
  @store[key.to_s] = value
end

#save ⇒ Object 



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# File 'lib/fluent/plugin/storage_mongo.rb', line 118

def save
  operate(format_collection_name(@collection), @store)
end

#update(key, &block) ⇒ Object 



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# File 'lib/fluent/plugin/storage_mongo.rb', line 138

def update(key, &block)
  @store[key.to_s] = block.call(@store[key.to_s])
end