PassiveMonitoringCallbackStub.kt
/*
* 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 androidx.health.services.client.impl
import android.util.Log
import androidx.annotation.GuardedBy
import androidx.health.services.client.PassiveMonitoringCallback
import androidx.health.services.client.impl.event.PassiveCallbackEvent
import androidx.health.services.client.impl.ipc.internal.ListenerKey
import androidx.health.services.client.impl.response.PassiveMonitoringUpdateResponse
import androidx.health.services.client.proto.EventsProto.PassiveCallbackEvent.EventCase.EVENT_NOT_SET
import androidx.health.services.client.proto.EventsProto.PassiveCallbackEvent.EventCase.PASSIVE_UPDATE_RESPONSE
/**
* A stub implementation for IPassiveMonitoringCallback.
*
* @hide
*/
public class PassiveMonitoringCallbackStub
private constructor(
private val packageName: String,
private val callback: PassiveMonitoringCallback
) : IPassiveMonitoringCallback.Stub() {
public val listenerKey: ListenerKey = ListenerKey(packageName)
override fun onPassiveCallbackEvent(event: PassiveCallbackEvent) {
val proto = event.proto
when (proto.eventCase) {
PASSIVE_UPDATE_RESPONSE -> {
val response = PassiveMonitoringUpdateResponse(proto.passiveUpdateResponse)
callback.onPassiveMonitoringUpdate(response.passiveMonitoringUpdate)
}
null, EVENT_NOT_SET -> Log.w(TAG, "Received unknown event ${proto.eventCase}")
}
}
/**
* Its important to use the same stub for registration and un-registration, to ensure same
* binder object is passed by framework to service side of the IPC.
*/
public class PassiveMonitoringCallbackCache private constructor() {
@GuardedBy("this")
private val listeners: MutableMap<String, PassiveMonitoringCallbackStub> = HashMap()
@Synchronized
public fun getOrCreate(
packageName: String,
callback: PassiveMonitoringCallback
): PassiveMonitoringCallbackStub {
return listeners.getOrPut(packageName) {
PassiveMonitoringCallbackStub(packageName, callback)
}
}
@Synchronized
public fun remove(packageName: String): PassiveMonitoringCallbackStub? {
return listeners.remove(packageName)
}
public companion object {
@JvmField
public val INSTANCE: PassiveMonitoringCallbackCache = PassiveMonitoringCallbackCache()
}
}
private companion object {
const val TAG = "PassiveCallbackStub"
}
}