| // Copyright 2017 The Bazel Authors. All rights reserved. |
| // |
| // 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. |
| |
| package com.google.devtools.build.lib.skyframe.serialization.strings; |
| |
| import com.google.devtools.build.lib.skyframe.serialization.DeserializationContext; |
| import com.google.devtools.build.lib.skyframe.serialization.ObjectCodec; |
| import com.google.devtools.build.lib.skyframe.serialization.SerializationContext; |
| import com.google.protobuf.CodedInputStream; |
| import com.google.protobuf.CodedOutputStream; |
| import java.io.IOException; |
| |
| /** Dead-simple serialization for {@link String}s. */ |
| class StringCodec implements ObjectCodec<String> { |
| |
| @Override |
| public Class<String> getEncodedClass() { |
| return String.class; |
| } |
| |
| @Override |
| public MemoizationStrategy getStrategy() { |
| // Don't memoize strings inside memoizing serialization, to preserve current behavior. |
| // TODO(janakr,brandjon,michajlo): Is it actually a problem to memoize strings? Doubt there |
| // would be much performance impact from increasing the size of the identity map, and we |
| // could potentially drop our string tables in the future. |
| return MemoizationStrategy.DO_NOT_MEMOIZE; |
| } |
| |
| @Override |
| public void serialize(SerializationContext context, String str, CodedOutputStream codedOut) |
| throws IOException { |
| codedOut.writeStringNoTag(str); |
| } |
| |
| @Override |
| public String deserialize(DeserializationContext context, CodedInputStream codedIn) |
| throws IOException { |
| return codedIn.readString(); |
| } |
| } |