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


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// 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;

import com.google.devtools.build.lib.cmdline.LabelSyntaxException;
import com.google.devtools.build.lib.cmdline.RepositoryName;
import com.google.protobuf.ByteString;

/** Common utilities for serialization. */
public class SerializationCommonUtils {
  public static final ImmutableListCodec<String> STRING_LIST_CODEC =
      new ImmutableListCodec<>(FastStringCodec.INSTANCE);
  private static final ByteString DEFAULT_REPOSITORY =
      ByteString.copyFromUtf8(RepositoryName.DEFAULT.getName());
  private static final ByteString MAIN_REPOSITORY =
      ByteString.copyFromUtf8(RepositoryName.MAIN.getName());

  public static RepositoryName deserializeRepoName(ByteString repoNameBytes)
      throws LabelSyntaxException {
    // We expect MAIN_REPOSITORY the vast majority of the time, so check for it first.
    if (repoNameBytes.equals(MAIN_REPOSITORY)) {
      return RepositoryName.MAIN;
    } else if (repoNameBytes.equals(DEFAULT_REPOSITORY)) {
      return RepositoryName.DEFAULT;
    } else {
      return RepositoryName.create(repoNameBytes.toStringUtf8());
    }
  }
}