Sha256: 59bf45f0104953c189164c8be44794884f638e0b001306cf6320c1e6afd3c5aa
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Size: 1.36 KB
Versions: 45
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Stored size: 1.36 KB
Contents
# Author:: Couchbase <info@couchbase.com>
# Copyright:: 2013 Couchbase, Inc.
# License:: Apache License, Version 2.0
#
# 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.
#
require 'zlib'
require 'stringio'
# This class wraps any other transcoder and performs compression
# using zlib
class GzipTranscoder
FMT_GZIP = 0x04
def initialize(base = nil)
@base = base || Couchbase::Transcoder::Plain
end
def dump(obj, flags, options = {})
obj, flags = @base.dump(obj, flags, options)
io = StringIO.new
gz = Zlib::GzipWriter.new(io)
gz.write(obj)
gz.close
[io.string, flags|FMT_GZIP]
end
def load(blob, flags, options = {})
# decompress value only if gzip flag set
if (flags & FMT_GZIP) == FMT_GZIP
io = StringIO.new(blob)
gz = Zlib::GzipReader.new(io)
blob = gz.read
gz.close
end
@base.load(blob, flags, options)
end
end
Version data entries
45 entries across 45 versions & 2 rubygems