Class: TableStoreClient

Inherits:
Object
  • Object
show all
Defined in:
lib/tablestore/table_store_client.rb

Instance Method Summary collapse

Instance Method Details

#decode_batch_get_row(body) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 173

def decode_batch_get_row(body)
  proto = BatchGetRowResponse.new
  proto.parse_from_string(body)
  rows = []
  proto.tables.each do |table_item|
    rows << parse_get_row_item(table_item.rows)
  end
  rows
end

#decode_get_range_request(body) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 126

def decode_get_range_request(body)
  proto = GetRangeResponse.new
  proto.parse_from_string(body)

  next_start_pk = nil
  row_list = []

  if proto.next_start_primary_key.length != 0
    inputStream = PlainBufferInputStream.new(proto.next_start_primary_key)
    codedInputStream = PlainBufferCodedInputStream.new(inputStream)
    next_start_pk, att = codedInputStream.read_row
  end

  if proto.rows.length != 0
    inputStream = PlainBufferInputStream.new(proto.rows)
    codedInputStream = PlainBufferCodedInputStream.new(inputStream)
    row_list = codedInputStream.read_rows
  end

  return next_start_pk, row_list
end

#decode_get_row(body) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 148

def decode_get_row(body)
  proto = GetRowResponse.new
  proto.parse_from_string(body)

  return_row = nil
  if proto.row.length > 0
    inputStream = PlainBufferInputStream.new(proto.row)
    codedInputStream = PlainBufferCodedInputStream.new(inputStream)
    return_row = codedInputStream.read_row
  end
  return_row
end

#decode_list_table(body) ⇒ Object

Decode



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# File 'lib/tablestore/table_store_client.rb', line 119

def decode_list_table(body)
  proto = ListTableResponse.new
  proto.parse_from_string(body)
  names = proto.table_names
  names
end

#decode_put_row(body) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 161

def decode_put_row(body)
  proto = PutRowResponse.new
  proto.parse_from_string(body)
  return_row = nil
  if proto.row.length != 0
    inputStream = PlainBufferInputStream.new(proto.row)
    codedInputStream = PlainBufferCodedInputStream.new(inputStream)
    return_row = codedInputStream.read_row
  end
  return_row
end

#encode_create_table(table_meta, table_options, reserved_throughput) ⇒ Object

Encode



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# File 'lib/tablestore/table_store_client.rb', line 13

def encode_create_table(table_meta, table_options, reserved_throughput)
  proto = CreateTableRequest.new

  meta_proto = TableMeta.new
  meta_proto.table_name = table_meta.table_name
  meta_proto.table_name = table_meta.table_name
  table_meta.schema_of_primary_key.each do |primary_key|
    meta_proto.primary_key << make_schemas_with_list(primary_key)
  end
  proto.table_meta = meta_proto

  proto.table_options = make_table_options(table_options)

  rt_proto = ReservedThroughput.new
  rt_proto.capacity_unit = make_capacity_unit(reserved_throughput.capacity_unit)
  proto.reserved_throughput = rt_proto
  proto.serialize_to_string
end

#encode_delete_row(table_name, row, condition) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 108

def encode_delete_row(table_name, row, condition)
  proto = DeleteRowRequest.new
  proto.table_name = table_name
  condition = Condition.new(RowExistenceExpectation::IGNORE) if condition.nil?
  condition_proto = Condition.new
  proto.condition = make_condition(condition_proto, condition)
  proto.primary_key = serialize_for_delete_row(row.primary_key)
  proto.serialize_to_string
end

#encode_delete_table(table_name) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 51

def encode_delete_table(table_name)
  proto = DeleteTableRequest.new
  proto.table_name = table_name
  proto.serialize_to_string
end

#encode_get_range_request(request) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 57

def encode_get_range_request(request)
  proto = GetRangeRequest.new
  proto.table_name = request[:table_name]
  proto.direction = request[:direction]
  proto.inclusive_start_primary_key = serialize_primary_key(request[:inclusive_start_primary_key])
  proto.exclusive_end_primary_key = serialize_primary_key(request[:exclusive_end_primary_key])
  proto.max_versions = request[:max_version]
  proto.limit = request[:limit]
  if request[:column_filter]
    proto.filter = make_column_condition(request[:column_filter]).serialize_to_string
  end
  proto.serialize_to_string
end

#encode_get_row(table_name, primary_key, columns_to_get, column_filter, max_version) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 81

def encode_get_row(table_name, primary_key, columns_to_get, column_filter, max_version)
  proto = GetRowRequest.new
  proto.table_name = table_name
  make_repeated_column_names(proto.columns_to_get, columns_to_get)
  if column_filter
    proto.filter = make_column_condition(column_filter).serialize_to_string
  end
  proto.primary_key = serialize_primary_key(primary_key)
  proto.max_versions = max_version if max_version
  proto.serialize_to_string
end

#encode_list_table ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 32

def encode_list_table
  proto = ListTableRequest.new
  proto.serialize_to_string
end

#encode_put_row(table_name, row, condition) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 71

def encode_put_row(table_name, row, condition)
  proto = PutRowRequest.new
  proto.table_name = table_name
  condition = Condition.new(RowExistenceExpectation::IGNORE) if condition.nil?
  contion_proto = Condition.new
  proto.condition = make_condition(contion_proto, condition)
  proto.row = serialize_for_put_row(row.primary_key, row.attribute_columns)
  proto.serialize_to_string
end

#encode_update_row(teble_name, row, condition) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 93

def encode_update_row(teble_name, row, condition)
  proto = UpdateRowRequest.new
  proto.table_name = teble_name
  condition = Condition.new(RowExistenceExpectation::IGNORE) if condition.nil?
  condition_proto = Condition.new
  proto.condition = make_condition(condition_proto, condition)
  if return_type == ReturnType::RT_PK
    return_content = ReturnContent.new
    return_content.return_type = RT_PK
    proto.return_content = return_content
  end
  proto.row_change = serialize_for_update_row(row.primary_key, row.attribute_columns)
  proto.serialize_to_string
end

#encode_update_table(table_name, table_options, reserved_throughput) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 37

def encode_update_table(table_name, table_options, reserved_throughput)
  proto = UpdateTableRequest.new
  proto.table_name = table_name
  if reserved_throughput
    rt_proto = ReservedThroughput.new
    rt_proto.capacity_unit = make_capacity_unit(reserved_throughput.capacity_unit)
    proto.reserved_throughput = rt_proto
  end
  if table_options
    proto.table_options = make_table_options(table_options)
  end
  proto.serialize_to_string
end

#make_batch_get_row(request) ⇒ Object

Make



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# File 'lib/tablestore/table_store_client.rb', line 184

def make_batch_get_row(request)
  proto = BatchGetRowRequest.new
  request.items.each do |item|
    table_value = item[1]
    table_item = TableInBatchGetRowRequest.new
    table_item.table_name = table_value.table_name
    make_repeated_column_names(table_item.columns_to_get, table_value.columns_to_get)

    if table_value.column_filter
      table_item.filter = make_column_condition(table_value.column_filter).serialize_to_string
    end

    table_value.primary_keys.each do |pk|
      table_item.primary_key << serialize_primary_key(pk)
    end

    if table_value.max_version
        table_item.max_versions = table_value.max_version
    end
    if table_value.time_range
      if table_value.time_range.is_a?(Array)
        table_item.time_range.start_time = table_value.time_range[0]
        table_item.time_range.end_time = table_value.time_range[1]
      elsif table_value.is_a?(Fixnum)
        table_item.time_range.specific_time = table_value.time_range
      end
    end
    if table_value.start_column
      table_item.start_column = table_value.start_column
    end
    if table_value.end_column
        table_item.end_column = table_value.end_column
    end
    proto.tables << table_item
  end
  proto.serialize_to_string
end

#make_batch_write_row(request) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 222

def make_batch_write_row(request)
  proto = BatchWriteRowRequest.new
  request.items.each do |item|
    table_value = item[1]
    table_item = TableInBatchWriteRowRequest.new
    table_item.table_name = table_value.table_name

    table_value.row_items.each do |row_item|
      if row_item.type == Metadata::BatchWriteRowType::PUT
        row = RowInBatchWriteRowRequest.new
        table_item.rows << make_put_row_item(row, row_item)
      end
      if row_item.type == Metadata::BatchWriteRowType::UPDATE
        row = RowInBatchWriteRowRequest.new
        table_item.rows << make_update_row_item(row, row_item)
      end
      if row_item.type == Metadata::BatchWriteRowType::DELETE
        row = RowInBatchWriteRowRequest.new
        table_item.rows << make_delete_row_item(row, row_item)
      end
    end
    proto.tables << table_item
  end
  proto.serialize_to_string
end

#make_capacity_unit(capacity_unit) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 401

def make_capacity_unit(capacity_unit)
  proto = CapacityUnit.new
  proto.read = capacity_unit.read if capacity_unit.read
  proto.write = capacity_unit.write if capacity_unit.write
  proto
end

#make_column_condition(column_condition) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 327

def make_column_condition(column_condition)
  return if column_condition.nil?
  proto = Filter.new
  proto.type = column_condition.get_type

  # condition
  if column_condition.is_a?(Metadata::CompositeColumnCondition)
    proto.filter = make_composite_condition(column_condition)
  elsif column_condition.is_a?(Metadata::SingleColumnCondition)
    proto.filter = make_relation_condition(column_condition)
  else
    raise TableStoreClientError.new("expect CompositeColumnCondition, SingleColumnCondition but not #{column_condition.class}")
  end
  proto
end

#make_composite_condition(condition) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 343

def make_composite_condition(condition)
  proto = CompositeColumnValueFilter.new
  proto.combinator = condition.get_combinator

  condition.sub_conditions.each do |sub|
    proto.sub_filters << make_column_condition(sub)
  end

  proto.serialize_to_string
end

#make_condition(proto, condition) ⇒ Object

Raises:



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# File 'lib/tablestore/table_store_client.rb', line 315

def make_condition(proto, condition)
  raise TableStoreClientError.new("condition should be an instance of Condition, not #{condition.class}") unless condition.is_a?(Metadata::Condition)
  expectation_str = condition.row_existence_expectation
  proto.row_existence = expectation_str
  raise TableStoreClientError.new("row_existence_expectation should be one of [#{join(', ')}], not #{expectation_str}") if proto.row_existence.nil?

  if condition.column_condition
    proto.column_condition = make_column_condition(condition.column_condition).serialize_to_string
  end
  proto
end

#make_delete_row_item(proto, delete_row_item) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 285

def make_delete_row_item(proto, delete_row_item)
  condition = delete_row_item.condition
  if condition.nil?
    condition = Metadata::Condition.new(RowExistenceExpectation::IGNORE)
  end
  condition_proto = Condition.new
  proto.condition = make_condition(condition_proto, condition)

  if delete_row_item.return_type == ReturnType::RT_PK
    return_content = ReturnContent.new
    return_content.return_type = RT_PK
    proto.return_content = return_content
  end

  proto.row_change = serialize_for_delete_row(delete_row_item.row.primary_key)
  proto.type = DELETE
  proto

end

#make_put_row_item(proto, put_row_item) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 248

def make_put_row_item(proto, put_row_item)
  condition = put_row_item.condition
  if condition.nil?
    condition = Condition.new(Metadata::RowExistenceExpectation::IGNORE)
  end
  condition_proto = Condition.new
  proto.condition = make_condition(condition_proto, condition)
  if put_row_item.return_type == ReturnType::RT_PK
    return_content = ReturnContent.new
    return_content.return_type = RT_PK
    proto.return_content = return_content
  end

  proto.row_change = serialize_for_put_row(put_row_item.row.primary_key, put_row_item.row.attribute_columns)
  proto.type = PUT
  proto
end

#make_relation_condition(condition) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 354

def make_relation_condition(condition)
  proto = SingleColumnValueFilter.new
  proto.comparator = condition.get_comparator

  proto.column_name = condition.get_column_name
  proto.column_value = serialize_column_value(condition.get_column_value)
  proto.filter_if_missing = !condition.pass_if_missing
  proto.latest_version_only = condition.latest_version_only
  proto.serialize_to_string
end

#make_repeated_column_names(proto, columns_to_get) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 305

def make_repeated_column_names(proto, columns_to_get)
  if columns_to_get.nil?
    return
  end

  columns_to_get.each do |column_name|
    proto << column_name
  end
end

#make_schemas_with_list(schema) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 365

def make_schemas_with_list(schema)
  schema_proto = PrimaryKeySchema.new
  schema_proto.name = schema[0]
  schema_proto.type = schema[1]
  if schema.size == 3
    schema_proto.option = 1
  end
  schema_proto
end

#make_table_options(options) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 375

def make_table_options(options)
  option_proto = TableOptions.new
  unless options.is_a?(Metadata::TableOptions)
    raise TableStoreClientError.new("table_option should be an instance of Meta::TableOptions, not #{options.class}" )
  end
  if options.time_to_live
    unless options.time_to_live.is_a?(Fixnum)
      raise TableStoreClientError("time_to_live should be an instance of int, not #{options.time_to_live.class}")
    end
    option_proto.time_to_live = options.time_to_live
  end
  if options.max_version
    unless options.max_version.is_a?(Fixnum)
      raise TableStoreClientError("max_version should be an instance of int, not #{options.max_version.class}")
    end
    option_proto.max_versions = options.max_version
  end
  if options.max_time_deviation
    unless options.max_time_deviation.is_a?(Fixnum)
      raise TableStoreClientError("max_time_deviation should be an instance of int, not #{options.max_version.class}")
    end
    option_proto.deviation_cell_version_in_sec = options.max_time_deviation
  end
  option_proto
end

#make_update_row_item(proto, update_row_item) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 266

def make_update_row_item(proto, update_row_item)
  condition = update_row_item.condition
  if condition.nil?
    condition = Condition.new(RowExistenceExpectation::IGNORE)
  end
  condition_proto = Condition.new
  proto.condition = make_condition(condition_proto, condition)

  if update_row_item.return_type == ReturnType::RT_PK
    return_content = ReturnContent.new
    return_content.return_type = RT_PK
    proto.return_content = return_content
  end
  update_row_item.row.attribute_columns
  proto.row_change = serialize_for_update_row(update_row_item.row.primary_key, update_row_item.row.attribute_columns)
  proto.type = UPDATE
  proto
end

#parse_batch_write_row(proto) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 440

def parse_batch_write_row(proto)
  result_list = {}
  proto.each do |table_item|
    table_name = table_item.table_name
    result_list[table_name] = []

    table_item.rows.each do |row_item|
      row = parse_write_row_item(row_item)
      result_list[table_name] << row
    end
  end

  result_list
end

#parse_get_row_item(proto) ⇒ Object

Parse



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# File 'lib/tablestore/table_store_client.rb', line 409

def parse_get_row_item(proto)
  row_list = []
  proto.each do |row_item|
    primary_key_columns = nil
    attribute_columns = nil

    if row_item.is_ok
      # error_code = nil
      # error_message = nil
      # capacity_unit = parse_capacity_unit(row_item.consumed.capacity_unit)

      if row_item.row.length != 0
        inputStream = PlainBufferInputStream.new(row_item.row)
        codedInputStream = PlainBufferCodedInputStream.new(inputStream)
        primary_key_columns, attribute_columns = codedInputStream.read_row
      end
    else
      # error_code = row_item.error.code
      # error_message = row_item.error.HasField('message') ? row_item.error.message : ''
      # if row_item.HasField('consumed')
      #   capacity_unit = parse_capacity_unit(row_item.consumed.capacity_unit)
      # else
      #   capacity_unit = nil
      # end
    end

    row_list << {pk: primary_key_columns, attr: attribute_columns} if primary_key_columns
  end
  row_list
end

#parse_write_row_item(row_item) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 455

def parse_write_row_item(row_item)
  primary_key_columns = nil

  if row_item.is_ok
    error_code = nil
    error_message = nil

    if row_item.row.length != 0
      inputStream = PlainBufferInputStream.new(row_item.row)
      codedInputStream = PlainBufferCodedInputStream.new(inputStream)
      primary_key_columns, attribute_columns = codedInputStream.read_row
    end
  end
  primary_key_columns

  #BatchWriteRowResponseItem.new(row_item.is_ok, error_code, error_message, consumed, primary_key_columns)
end