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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.
module Helper
class InfoGenerator
def page_view_table
Arrow::Table.new("count" => Arrow::UInt64Array.new([1, 2, 3]),
"private" => Arrow::BooleanArray.new([true, false, true]))
end
def page_view_descriptor
ArrowFlight::PathDescriptor.new(["page-view"])
end
def page_view_endpoints(handle)
locations = [
ArrowFlight::Location.new("grpc+tcp://127.0.0.1:10000"),
ArrowFlight::Location.new("grpc+tcp://127.0.0.1:10001"),
]
[
ArrowFlight::Endpoint.new(handle, locations),
]
end
def page_view(handle)
table = page_view_table
descriptor = page_view_descriptor
endpoints = page_view_endpoints(handle)
output = Arrow::ResizableBuffer.new(0)
table.save(output, format: :stream)
ArrowFlight::Info.new(table.schema,
descriptor,
endpoints,
table.n_rows,
output.size)
end
end
end
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