Class: LogStash::Outputs::Documentdb

Inherits:
Base
  • Object
show all
Defined in:
lib/logstash/outputs/documentdb.rb

Instance Method Summary collapse

Instance Method Details

#receive(event) ⇒ Object 



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# File 'lib/logstash/outputs/documentdb.rb', line 77

def receive(event)
  document = event.to_hash()
  document['id'] =  SecureRandom.uuid

  ## Writing document to DocumentDB
  unique_doc_identifier = document['id']
  begin
    if @partitioned_collection
      @client.create_document(@coll_resource, unique_doc_identifier, document, @partition_key)
    else
      @client.create_document(@coll_resource, unique_doc_identifier, document)
    end
  rescue RestClient::ExceptionWithResponse => rcex
    exdict = JSON.parse(rcex.response)
    if exdict['code'] == 'Conflict'
      $logger.error("Duplicate Error: document #{unique_doc_identifier} already exists, data=>" + (document.to_json).to_s)
    else
      $logger.error("RestClient Error: '#{rcex.response}', data=>" + (document.to_json).to_s)
    end
  rescue => ex
    $logger.error("UnknownError: '#{ex}', uniqueid=>#{unique_doc_identifier}, data=>" + (document.to_json).to_s )
  end
end

#register ⇒ Object 



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# File 'lib/logstash/outputs/documentdb.rb', line 26

def register
  ## Configure
  if @partitioned_collection
    raise ArgumentError, 'partition_key must be set in partitioned collection mode' if @partition_key.empty?
    if (@auto_create_collection &&
           @offer_throughput < AzureDocumentDB::PARTITIONED_COLL_MIN_THROUGHPUT)
        raise ArgumentError, sprintf("offer_throughput must be more than and equals to %s",
                               AzureDocumentDB::PARTITIONED_COLL_MIN_THROUGHPUT)
    end
  end

  ## Start 
  begin
    @client = nil
    if @partitioned_collection
      @client = AzureDocumentDB::PartitionedCollectionClient.new(,@docdb_endpoint)
    else
      @client = AzureDocumentDB::Client.new(,@docdb_endpoint)
    end

    # initial operations for database
    res = @client.find_databases_by_name(@docdb_database)
    if( res[:body]["_count"].to_i == 0 )
      raise RuntimeError, "No database (#{docdb_database}) exists! Enable auto_create_database or create it by useself" if !@auto_create_database
      # create new database as it doesn't exists
      @client.create_database(@docdb_database)
    end

    # initial operations for collection
    database_resource = @client.get_database_resource(@docdb_database)
    res = @client.find_collections_by_name(database_resource, @docdb_collection)
    if( res[:body]["_count"].to_i == 0 )
      raise "No collection (#{docdb_collection}) exists! Enable auto_create_collection or create it by useself" if !@auto_create_collection
      # create new collection as it doesn't exists
      if @partitioned_collection
        partition_key_paths = ["/#{@partition_key}"]
        @client.create_collection(database_resource,
                    @docdb_collection, partition_key_paths, @offer_throughput)
      else
        @client.create_collection(database_resource, @docdb_collection)
      end
    end
    @coll_resource = @client.get_collection_resource(database_resource, @docdb_collection)

  rescue Exception =>ex
    @logger.error("Documentdb output plugin's register Error: '#{ex}'")
    exit!
  end
end