mirror of https://github.com/grpc/grpc-dart.git
49 lines
1.5 KiB
Dart
49 lines
1.5 KiB
Dart
// Copyright (c) 2024, the gRPC project authors. Please see the AUTHORS file
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// for details. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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abstract class Codec {
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/// Returns the message encoding that this compressor uses.
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///
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/// This can be values such as "gzip", "deflate", "snappy", etc.
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String get encodingName;
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/// Wraps an existing output stream with a compressed output.
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List<int> compress(List<int> data);
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/// Wraps an existing output stream with a uncompressed input data.
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List<int> decompress(List<int> data);
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}
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/// The "identity", or "none" codec.
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///
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/// This codec is special in that it can be used to explicitly disable Call
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/// compression on a Channel that by default compresses.
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class IdentityCodec implements Codec {
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const IdentityCodec();
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@override
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final encodingName = 'identity';
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@override
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List<int> compress(List<int> data) {
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return data;
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}
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@override
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List<int> decompress(List<int> data) {
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return data;
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}
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}
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