com.google.gerrit.server.patch.FilePathAdapter Maven / Gradle / Ivy
// Copyright (C) 2021 The Android Open Source Project
//
// 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.gerrit.server.patch;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.Patch.ChangeType;
import java.util.Optional;
/**
* Adapter for old/new paths of the new diff cache to the old diff cache representation. This is
* needed for backward compatibility with all old diff cache callers.
*
* TODO(ghareeb): It's better to revisit this logic and update all diff cache callers to use the
* new diff cache output directly.
*/
public class FilePathAdapter {
private FilePathAdapter() {}
/**
* Converts the old file path of the new diff cache output to the old diff cache representation.
*/
@Nullable
public static String getOldPath(Optional oldName, ChangeType changeType) {
return switch (changeType) {
case DELETED, ADDED, MODIFIED -> null;
case COPIED, RENAMED -> oldName.get();
case REWRITE -> oldName.isPresent() ? oldName.get() : null;
default -> throw new IllegalArgumentException("Unsupported type " + changeType);
};
}
/**
* Converts the new file path of the new diff cache output to the old diff cache representation.
*/
public static String getNewPath(
Optional oldName, Optional newName, ChangeType changeType) {
return switch (changeType) {
case DELETED -> oldName.get();
case ADDED, MODIFIED, REWRITE, COPIED, RENAMED -> newName.get();
default -> throw new IllegalArgumentException("Unsupported type " + changeType);
};
}
}