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 152

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(api_name, headers, body) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 25

def decode_get_range_request(api_name, headers, body)
  proto = GetRangeResponse.new
  proto.parse_from_string(body)
  #capacity_unit = parse_capacity_unit(proto.consumed.capacity_unit)

  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

  #next_token = proto.next_token

  row_list
  #return capacity_unit, next_start_pk, row_list, next_token
end

#decode_get_row(body) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 84

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_put_row(body) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 97

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_get_range_request(request) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 11

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 60

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_put_row(table_name, row, condition) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 50

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 72

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

#make_batch_get_row(request) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 109

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.token
      table_value.token.each do |tk|
        table_item.token << tk
      end
    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 162

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
    end
    proto.tables << table_item
  end
  proto.serialize_to_string
end

#make_column_condition(column_condition) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 239

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 255

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 227

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.get_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.get_column_condition
    proto.column_condition = make_column_condition(condition.column_condition).serialize_to_string
  end
  proto
end

#make_put_row_item(proto, put_row_item) ⇒ Object 



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

def make_put_row_item(proto, put_row_item)
  condition = put_row_item.condition
  if condition.nil?
    condition = Metadata::Condition.new(Metadata::RowExistenceExpectation::IGNORE, nil)
  end
  condition_proto = Condition.new
  proto.condition = make_condition(condition_proto, condition)
  if put_row_item.return_type == ReturnType::RT_PK
      proto.return_content.return_type = RT_PK
  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 266

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 217

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_update_row_item(proto, update_row_item) ⇒ Object 



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# File 'lib/tablestore/table_store_client.rb', line 200

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

  if update_row_item.return_type == ReturnType::RT_PK
      proto.return_content.return_type = RT_PK
  end

  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 309

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 



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# File 'lib/tablestore/table_store_client.rb', line 278

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 324

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