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/*
* Copyright (C) 2018 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.android.server.backup.encryption.chunk;
import java.util.Arrays;
/**
* Holds the bytes of an encrypted {@link ChunksMetadataProto.ChunkOrdering}.
*
* <p>TODO(b/116575321): After all code is ported, remove the factory method and rename
* encryptedChunkOrdering() to getBytes().
*/
public class EncryptedChunkOrdering {
/**
* Constructs a new object holding the given bytes of an encrypted {@link
* ChunksMetadataProto.ChunkOrdering}.
*
* <p>Note that this just holds an ordering which is already encrypted, it does not encrypt the
* ordering.
*/
public static EncryptedChunkOrdering create(byte[] encryptedChunkOrdering) {
return new EncryptedChunkOrdering(encryptedChunkOrdering);
}
private final byte[] mEncryptedChunkOrdering;
/** Get the encrypted chunk ordering */
public byte[] encryptedChunkOrdering() {
return mEncryptedChunkOrdering;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof EncryptedChunkOrdering)) {
return false;
}
EncryptedChunkOrdering encryptedChunkOrdering = (EncryptedChunkOrdering) o;
return Arrays.equals(
mEncryptedChunkOrdering, encryptedChunkOrdering.mEncryptedChunkOrdering);
}
@Override
public int hashCode() {
return Arrays.hashCode(mEncryptedChunkOrdering);
}
private EncryptedChunkOrdering(byte[] encryptedChunkOrdering) {
mEncryptedChunkOrdering = encryptedChunkOrdering;
}
}
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