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Change AppPrefLoader from AsyncTask to AsyncLoader.

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Showing the wifi data usage results in reaching the max number of
threads in the pool executor. Switching the loader implementation
from Async task to AsynLoader and use a single loader to get the
whole list of preferences instead of using a new task to create each
list element.

Change-Id: I0da19ca09031a7fa178970c192e12a99ab489145
Fix: 33820327
Test: make RunSettingsRoboTests
This commit is contained in:
Doris Ling
2017-04-28 15:17:30 -07:00
parent 59f965d698
commit 2f02218493
3 changed files with 171 additions and 41 deletions
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53
src/com/android/settings/datausage/AppDataUsage.java
View File

@@ -30,7 +30,6 @@ import android.net.NetworkPolicy;
import android.net.NetworkStatsHistory;
import android.net.NetworkTemplate;
import android.net.TrafficStats;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.RemoteException;
import android.os.UserHandle;
@@ -55,11 +54,6 @@ import com.android.settingslib.net.ChartData;
import com.android.settingslib.net.ChartDataLoader;
import com.android.settingslib.net.UidDetailProvider;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class AppDataUsage extends DataUsageBase implements Preference.OnPreferenceChangeListener,
DataSaverBackend.Listener {
@@ -78,6 +72,7 @@ public class AppDataUsage extends DataUsageBase implements Preference.OnPreferen
private static final String KEY_UNRESTRICTED_DATA = "unrestricted_data_saver";
private static final int LOADER_CHART_DATA = 2;
private static final int LOADER_APP_PREF = 3;
private final ArraySet<String> mPackages = new ArraySet<>();
private Preference mTotalUsage;
@@ -104,12 +99,6 @@ public class AppDataUsage extends DataUsageBase implements Preference.OnPreferen
private SwitchPreference mUnrestrictedData;
private DataSaverBackend mDataSaverBackend;
// Parameters to construct an efficient ThreadPoolExecutor
private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
private static final int CORE_POOL_SIZE = Math.max(2, Math.min(CPU_COUNT - 1, 4));
private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
private static final int KEEP_ALIVE_SECONDS = 30;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
@@ -196,14 +185,7 @@ public class AppDataUsage extends DataUsageBase implements Preference.OnPreferen
if (mPackages.size() > 1) {
mAppList = (PreferenceCategory) findPreference(KEY_APP_LIST);
final int packageSize = mPackages.size();
final BlockingQueue<Runnable> workQueue = new LinkedBlockingQueue<>(packageSize);
final ThreadPoolExecutor executor = new ThreadPoolExecutor(CORE_POOL_SIZE,
MAXIMUM_POOL_SIZE, KEEP_ALIVE_SECONDS, TimeUnit.SECONDS, workQueue);
for (int i = 1; i < mPackages.size(); i++) {
final AppPrefLoader loader = new AppPrefLoader();
loader.executeOnExecutor(executor, mPackages.valueAt(i));
}
getLoaderManager().initLoader(LOADER_APP_PREF, Bundle.EMPTY, mAppPrefCallbacks);
} else {
removePreference(KEY_APP_LIST);
}
@@ -408,31 +390,28 @@ public class AppDataUsage extends DataUsageBase implements Preference.OnPreferen
}
};
private class AppPrefLoader extends AsyncTask<String, Void, Preference> {
private final LoaderManager.LoaderCallbacks<ArraySet<Preference>> mAppPrefCallbacks =
new LoaderManager.LoaderCallbacks<ArraySet<Preference>>() {
@Override
protected Preference doInBackground(String... params) {
PackageManager pm = getPackageManager();
String pkg = params[0];
try {
ApplicationInfo info = pm.getApplicationInfo(pkg, 0);
Preference preference = new Preference(getPrefContext());
preference.setIcon(info.loadIcon(pm));
preference.setTitle(info.loadLabel(pm));
preference.setSelectable(false);
return preference;
} catch (PackageManager.NameNotFoundException e) {
}
return null;
public Loader<ArraySet<Preference>> onCreateLoader(int i, Bundle bundle) {
return new AppPrefLoader(getPrefContext(), mPackages, getPackageManager());
}
@Override
protected void onPostExecute(Preference pref) {
if (pref != null && mAppList != null) {
mAppList.addPreference(pref);
public void onLoadFinished(Loader<ArraySet<Preference>> loader,
ArraySet<Preference> preferences) {
if (preferences != null && mAppList != null) {
for (Preference preference : preferences) {
mAppList.addPreference(preference);
}
}
}
@Override
public void onLoaderReset(Loader<ArraySet<Preference>> loader) {
}
};
@Override
public void onDataSaverChanged(boolean isDataSaving) {

58
src/com/android/settings/datausage/AppPrefLoader.java Normal file
View File

@@ -0,0 +1,58 @@
/*
* Copyright (C) 2017 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.settings.datausage;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.support.v7.preference.Preference;
import android.util.ArraySet;
import com.android.settings.utils.AsyncLoader;
public class AppPrefLoader extends AsyncLoader<ArraySet<Preference>> {
private ArraySet<String> mPackages;
private PackageManager mPackageManager;
private Context mPrefContext;
public AppPrefLoader(Context prefContext, ArraySet<String> pkgs, PackageManager pm) {
super(prefContext);
mPackages = pkgs;
mPackageManager = pm;
mPrefContext = prefContext;
}
@Override
public ArraySet<Preference> loadInBackground() {
ArraySet<Preference> results = new ArraySet<>();
for (int i = 1, size = mPackages.size(); i < size; i++) {
try {
ApplicationInfo info = mPackageManager.getApplicationInfo(mPackages.valueAt(i), 0);
Preference preference = new Preference(mPrefContext);
preference.setIcon(info.loadIcon(mPackageManager));
preference.setTitle(info.loadLabel(mPackageManager));
preference.setSelectable(false);
results.add(preference);
} catch (PackageManager.NameNotFoundException e) {
}
}
return results;
}
@Override
protected void onDiscardResult(ArraySet<Preference> result) {
}
}

93
tests/robotests/src/com/android/settings/datausage/AppPrefLoaderTest.java Normal file
View File

@@ -0,0 +1,93 @@
/*
* Copyright (C) 2017 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.settings.datausage;
import static com.google.common.truth.Truth.assertThat;
import static org.mockito.Matchers.anyInt;
import static org.mockito.Matchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.graphics.drawable.Drawable;
import android.support.v7.preference.Preference;
import android.util.ArraySet;
import com.android.settings.SettingsRobolectricTestRunner;
import com.android.settings.TestConfig;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Answers;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.robolectric.RuntimeEnvironment;
import org.robolectric.annotation.Config;
@RunWith(SettingsRobolectricTestRunner.class)
@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
public class AppPrefLoaderTest {
@Mock(answer = Answers.RETURNS_DEEP_STUBS)
private Context mContext;
@Mock
private PackageManager mPackageManager;
private AppPrefLoader mLoader;
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
final ArraySet<String> pkgs = new ArraySet<>();
pkgs.add("pkg0");
pkgs.add("pkg1");
mLoader =
new AppPrefLoader(RuntimeEnvironment.application, pkgs, mPackageManager);
}
@Test
public void loadInBackground_packageNotFound_shouldReturnEmptySet()
throws NameNotFoundException {
when(mPackageManager.getApplicationInfo(anyString(), anyInt()))
.thenThrow(new NameNotFoundException());
ArraySet<Preference> preferences = mLoader.loadInBackground();
assertThat(preferences).isEmpty();
}
@Test
public void loadInBackground_shouldReturnPreference() throws NameNotFoundException {
ApplicationInfo info = mock(ApplicationInfo.class);
when(mPackageManager.getApplicationInfo(anyString(), anyInt())).thenReturn(info);
final Drawable drawable = mock(Drawable.class);
final String label = "Label1";
when(info.loadIcon(mPackageManager)).thenReturn(drawable);
when(info.loadLabel(mPackageManager)).thenReturn(label);
Preference preference = mLoader.loadInBackground().valueAt(0);
assertThat(preference.getTitle()).isEqualTo(label);
assertThat(preference.getIcon()).isEqualTo(drawable);
assertThat(preference.isSelectable()).isFalse();
}
}