src/main/java/com/google/devtools/build/lib/skyframe/serialization/FluentIterableCodec.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

// 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.FluentIterable;
import com.google.protobuf.CodedInputStream;
import com.google.protobuf.CodedOutputStream;
import java.io.IOException;

/** An {@link ObjectCodec} for {@link FluentIterable}. */
@SuppressWarnings("rawtypes") // Deliberate erasure of FluentIterable.
final class FluentIterableCodec implements ObjectCodec<FluentIterable> {

  @Override
  public Class<FluentIterable> getEncodedClass() {
    return FluentIterable.class;
  }

  @Override
  public void serialize(
      SerializationContext context, FluentIterable object, CodedOutputStream codedOut)
      throws IOException, SerializationException {
    codedOut.writeInt32NoTag(object.size());
    for (Object obj : object) {
      context.serialize(obj, codedOut);
    }
  }

  @Override
  public FluentIterable deserialize(DeserializationContext context, CodedInputStream codedIn)
      throws IOException, SerializationException {
    int size = codedIn.readInt32();
    Object[] list = new Object[size];
    for (int i = 0; i < size; ++i) {
      list[i] = context.deserialize(codedIn);
    }
    return FluentIterable.from(list);
  }
}