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/*
* Copyright (C) 2023 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.customization.module.logging
import com.android.internal.logging.InstanceId
import com.android.internal.logging.InstanceIdSequence
import javax.inject.Inject
import javax.inject.Singleton
@Singleton
class AppSessionId @Inject constructor() {
private var sessionId: InstanceId = newInstanceId()
fun createNewId(): AppSessionId {
sessionId = newInstanceId()
return this
}
fun getId(): Int {
return sessionId.hashCode()
}
private fun newInstanceId(): InstanceId = InstanceIdSequence(INSTANCE_ID_MAX).newInstanceId()
companion object {
// At most 20 bits: ~1m possibilities, ~0.5% probability of collision in 100 values
private const val INSTANCE_ID_MAX = 1 shl 20
}
}
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