Class: Trinamo::DynamodbConverter

Inherits:
BaseConverter show all
Defined in:
lib/trinamo/converter/dynamodb_converter.rb

Instance Attribute Summary

Attributes inherited from BaseConverter

#ddl, #ddl_yaml_path

Instance Method Summary collapse

Methods inherited from BaseConverter

#initialize

Constructor Details

This class inherits a constructor from Trinamo::BaseConverter

Instance Method Details

#convert ⇒ Object 



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# File 'lib/trinamo/converter/dynamodb_converter.rb', line 5

def convert
  ddl_body = @ddl[:tables].map do |h|
    fields = ([h[:hash_key]] + [h[:range_key]] + [h[:attributes]]).flatten.compact
    "      -- \#{h[:name]}_ddb\n      CREATE EXTERNAL TABLE \#{h[:name]}_ddb (\n        \#{fields.map { |attr| \"\#{attr[:name]} \#{attr[:type].upcase}\" }.join(',')}\n      )\n      STORED BY 'org.apache.hadoop.hive.dynamodb.DynamoDBStorageHandler'\n      TBLPROPERTIES (\n        'dynamodb.table.name' = '\#{h[:name]}',\n        'dynamodb.column.mapping' = '\#{fields.map { |attr| \"\#{attr[:name]}:\#{attr[:name]}\" }.join(',') }'\n      );\n    DDL\n  end\n\n  ddl_body.join(\"\\n\")\nend\n".unindent