| // Copyright 2018 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; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.Maps; |
| import com.google.protobuf.CodedInputStream; |
| import com.google.protobuf.CodedOutputStream; |
| import java.io.IOException; |
| import java.util.AbstractMap; |
| import java.util.Map; |
| import java.util.function.BiFunction; |
| |
| @SuppressWarnings("rawtypes") |
| class MapEntryCodec implements ObjectCodec<Map.Entry> { |
| |
| private final BiFunction<Object, Object, Map.Entry> factory; |
| private final Class<? extends Map.Entry> type; |
| |
| private MapEntryCodec(BiFunction<Object, Object, Map.Entry> factory) { |
| this.factory = factory; |
| this.type = factory.apply(0, 0).getClass(); |
| } |
| |
| @Override |
| public Class<? extends Map.Entry> getEncodedClass() { |
| return type; |
| } |
| |
| @Override |
| public void serialize(SerializationContext context, Map.Entry entry, CodedOutputStream codedOut) |
| throws IOException, SerializationException { |
| context.serialize(entry.getKey(), codedOut); |
| context.serialize(entry.getValue(), codedOut); |
| } |
| |
| @Override |
| public Map.Entry deserialize(DeserializationContext context, CodedInputStream codedIn) |
| throws SerializationException, IOException { |
| return factory.apply(context.deserialize(codedIn), context.deserialize(codedIn)); |
| } |
| |
| private static class MapEntryCodecRegisterer implements CodecRegisterer<MapEntryCodec> { |
| @Override |
| public Iterable<MapEntryCodec> getCodecsToRegister() { |
| return ImmutableList.of( |
| new MapEntryCodec(Maps::immutableEntry), |
| new MapEntryCodec(AbstractMap.SimpleEntry::new), |
| new MapEntryCodec(AbstractMap.SimpleImmutableEntry::new)); |
| } |
| } |
| } |