Sha256: a4d643ccf78c01d37795ead10269e9c8d0ffcf219d7c0c97e12d855cd16c0d56
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Size: 1.78 KB
Versions: 17
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Stored size: 1.78 KB
Contents
# Copyright 2023. Couchbase, Inc.
#
# Licensed 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 Couchbase
# @api private
class TranscoderFlags
FORMAT_MAP = {
reserved: 0,
private: 1,
json: 2,
binary: 3,
string: 4,
}.freeze
INV_FORMAT_MAP = FORMAT_MAP.invert.freeze
COMPRESSION_MAP = {none: 0}.freeze
INV_COMPRESSION_MAP = COMPRESSION_MAP.invert
attr_reader :format
attr_reader :compression
attr_reader :lower_bits
def initialize(format:, compression: :none, lower_bits: 0)
@format = format
@compression = compression
@lower_bits = lower_bits
end
def self.decode(flags)
return TranscoderFlags.new(format: flags) if flags.is_a?(Symbol)
common_flags = flags >> 24
lower_bits = flags & 0x00ffff
return TranscoderFlags.new(format: nil, lower_bits: lower_bits) if common_flags.zero?
compression_bits = common_flags >> 5
format_bits = common_flags & 0x0f
TranscoderFlags.new(
format: INV_FORMAT_MAP[format_bits],
compression: INV_COMPRESSION_MAP[compression_bits],
lower_bits: lower_bits
)
end
def encode
common_flags = (COMPRESSION_MAP[@compression] << 5) | FORMAT_MAP[@format]
(common_flags << 24) | @lower_bits
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems