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# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
require_relative "info-generator"
module Helper
class Server < ArrowFlight::Server
type_register
attr_reader :uploaded_table
private
def virtual_do_list_flights(context, criteria)
generator = InfoGenerator.new
[generator.page_view]
end
def virtual_do_do_get(context, ticket)
generator = InfoGenerator.new
if ticket.data.to_s != generator.page_view_ticket
raise Arrow::Error::Invalid.new("invalid ticket")
end
table = generator.page_view_table
ArrowFlight::RecordBatchStream.new(table)
end
def virtual_do_do_put(context, reader, writer)
@uploaded_table = reader.read_all
writer.write(Arrow::Buffer.new("done"))
if @uploaded_table.n_rows.zero?
raise Arrow::Error::Invalid.new("empty table")
end
true
end
end
end
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