Class: Trinamo::Converter

Inherits:
Object
  • Object
show all
Defined in:
lib/trinamo/converter.rb

Class Method Summary collapse

Class Method Details

.generate_ddl_template(out_file_path = nil) ⇒ Object 



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# File 'lib/trinamo/converter.rb', line 24

def generate_ddl_template(out_file_path = nil)
  template = "    tables:\n      - name: comments\n        s3_location: s3://path/to/s3/table/location\n        s3_partition:\n          - name: date\n            type: string\n        hash_key:\n          - name: user_id\n            type: bigint\n        range_key:\n          - name: comment_id\n            type: bigint\n        attributes:\n          - name: title\n            type: string\n          - name: content\n            type: string\n          - name: rate\n            type: double\n      - name: authors\n        hash_key:\n          - name: author_id\n            type: bigint\n        attributes:\n          - name: name\n            type: string\n  TEMPLATE\n\n  File.binwrite(out_file_path, template) if out_file_path\n  template\nend\n".unindent

.generate_options_template(out_file_path = nil) ⇒ Object 



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# File 'lib/trinamo/converter.rb', line 58

def generate_options_template(out_file_path = nil)
  template = "    options:\n      dynamodb.throughput.read.percent: 0.5\n      hive.exec.compress.output: true\n      io.seqfile.compression.type: BLOCK\n      mapred.output.compression.codec: com.hadoop.compression.lzo.LzoCodec\n  TEMPLATE\n\n  File.binwrite(out_file_path, template) if out_file_path\n  template\nend\n".unindent

.load(ddl_yaml_path, format) ⇒ Object 



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# File 'lib/trinamo/converter.rb', line 10

def load(ddl_yaml_path, format)
  case format
    when :hdfs then HdfsConverter.new(ddl_yaml_path)
    when :s3 then S3Converter.new(ddl_yaml_path)
    when :dynamodb then DynamodbConverter.new(ddl_yaml_path)
    when :option || :options then  load_options(ddl_yaml_path)
    else raise "[ERROR] Unknown format: #{format}" unless [:dynamodb, :hdfs, :s3].include(format)
  end
end

.load_options(options_yaml_path) ⇒ Object 



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# File 'lib/trinamo/converter.rb', line 20

def load_options(options_yaml_path)
  OptionConverter.new(options_yaml_path)
end