ae8389165a
- Create a WifiTrackerBase for the base worker thread
- Create a SavedWifiHelper for the saved Wi-Fi network tracker
Bug: 258542666
Test: manual test
atest -c WifiTrackerBaseTest \
SavedWifiHelperTest
Change-Id: Ie6b2f5b348367376da96737acdf5b8e65ecaf067
83 lines
2.6 KiB
Java
83 lines
2.6 KiB
Java
/*
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* Copyright (C) 2022 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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package com.android.settings.wifi.helper;
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import android.os.Handler;
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import android.os.HandlerThread;
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import android.os.Process;
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import android.os.SimpleClock;
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import android.os.SystemClock;
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import androidx.annotation.NonNull;
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import androidx.annotation.VisibleForTesting;
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import androidx.lifecycle.DefaultLifecycleObserver;
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import androidx.lifecycle.Lifecycle;
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import androidx.lifecycle.LifecycleOwner;
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import java.time.Clock;
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import java.time.ZoneOffset;
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/**
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* Base class for the WifiTrackerLib related classes.
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*/
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public class WifiTrackerBase implements DefaultLifecycleObserver {
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private static final String TAG = "WifiTrackerBase";
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// Max age of tracked WifiEntries
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protected static final long MAX_SCAN_AGE_MILLIS = 15_000;
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// Interval between initiating Wi-Fi Tracker scans
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protected static final long SCAN_INTERVAL_MILLIS = 10_000;
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// Clock used for evaluating the age of scans
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protected static final Clock ELAPSED_REALTIME_CLOCK = new SimpleClock(ZoneOffset.UTC) {
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@Override
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public long millis() {
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return SystemClock.elapsedRealtime();
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}
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};
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@VisibleForTesting
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protected HandlerThread mWorkerThread;
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public WifiTrackerBase(@NonNull Lifecycle lifecycle) {
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this(lifecycle, null /* handlerThread */);
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}
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@VisibleForTesting
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protected WifiTrackerBase(@NonNull Lifecycle lifecycle, HandlerThread handlerThread) {
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lifecycle.addObserver(this);
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mWorkerThread = (handlerThread != null) ? handlerThread :
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new HandlerThread(getTag()
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+ "{" + Integer.toHexString(System.identityHashCode(this)) + "}",
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Process.THREAD_PRIORITY_BACKGROUND);
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mWorkerThread.start();
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}
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protected String getTag() {
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return TAG;
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}
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@Override
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public void onDestroy(@NonNull LifecycleOwner owner) {
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mWorkerThread.quit();
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}
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/** Returns the worker thread handler. */
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public Handler getWorkerThreadHandler() {
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return mWorkerThread.getThreadHandler();
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}
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}
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