mirror of https://github.com/M66B/FairEmail.git
56 lines
1.6 KiB
Kotlin
56 lines
1.6 KiB
Kotlin
/*
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* Copyright 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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@file:JvmName("UUIDUtil")
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@file:RestrictTo(RestrictTo.Scope.LIBRARY_GROUP_PREFIX)
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package androidx.room.util
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import androidx.annotation.RestrictTo
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import java.nio.ByteBuffer
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import java.util.UUID
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/**
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* UUID / byte[] two-way conversion utility for Room
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*
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*/
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/**
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* Converts a 16-bytes array BLOB into a UUID pojo
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*
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* @param bytes byte array stored in database as BLOB
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* @return a UUID object created based on the provided byte array
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*/
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fun convertByteToUUID(bytes: ByteArray): UUID {
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val buffer = ByteBuffer.wrap(bytes)
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val firstLong = buffer.long
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val secondLong = buffer.long
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return UUID(firstLong, secondLong)
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}
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/**
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* Converts a UUID pojo into a 16-bytes array to store into database as BLOB
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*
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* @param uuid the UUID pojo
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* @return a byte array to store into database
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*/
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fun convertUUIDToByte(uuid: UUID): ByteArray {
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val bytes = ByteArray(16)
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val buffer = ByteBuffer.wrap(bytes)
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buffer.putLong(uuid.mostSignificantBits)
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buffer.putLong(uuid.leastSignificantBits)
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return buffer.array()
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}
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