50 lines
1.5 KiB
Ruby
50 lines
1.5 KiB
Ruby
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require_relative './odbc'
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module Carto
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class Connector
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# Hive (HiveServer2) provider using Hortonworks driver
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# (http://public-repo-1.hortonworks.com/HDP/hive-odbc/2.1.2.1002/debian/hive-odbc-native_2.1.2.1002-2_amd64.deb)
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#
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# For all supported attributes, see https://hortonworks.com/wp-content/uploads/2015/10/Hortonworks-Hive-ODBC-Driver-User-Guide.pdf
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#
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# Another driver compatible with this one is [Cloudera's](http://www.cloudera.com/downloads/connectors/hive/odbc/2-5-12.html)
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#
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# The schema acts as a database name here, and can be ommitted (default schema 'default' or '')
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# So we'll use a `database` connection parameter for the schema for consistency with other providers.
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# The schema parameter should not be directly used by the user.
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class HiveProvider < OdbcProvider
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private
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DEFAULT_SCHEMA = 'default'.freeze # '' would also be OK
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def fixed_connection_attributes
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{
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Driver: 'Hortonworks Hive ODBC Driver 64-bit'
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}
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end
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def required_connection_attributes
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{
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server: :HOST
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}
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end
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def optional_connection_attributes
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{
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database: { Schema: DEFAULT_SCHEMA },
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port: { PORT: 10000 },
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username: { UID: nil },
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password: { PWD: nil }
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}
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end
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def non_connection_parameters
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super.reverse_merge(schema: @connection[:database] || DEFAULT_SCHEMA)
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end
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end
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end
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end
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