Merge "Add an automatic storage management job service." into nyc-mr1-dev

                <action android:name="android.service.quicksettings.action.QS_TILE" />

            </intent-filter>

        </service>

        <!-- Automatic storage management tasks. -->

        <service

            android:name=".deletionhelper.AutomaticStorageManagementJobService"

            android:label="@string/automatic_storage_manager_service_label"

            android:permission="android.permission.BIND_JOB_SERVICE"

            android:enabled="@bool/enable_automatic_storage_management"

            android:exported="false"/>

        <receiver android:name=".deletionhelper.AutomaticStorageBroadcastReceiver"

                  android:enabled="@bool/enable_automatic_storage_management">

            <intent-filter>

                <action android:name="android.intent.action.BOOT_COMPLETED" />

            </intent-filter>

        </receiver>

        <!-- This is the longest AndroidManifest.xml ever. -->

    </application>

</manifest>

    <!--Whether the storage manager exists. -->

    <bool name="config_has_storage_manager">false</bool>

    <!-- Whether the automatic storage management job should be scheduled. -->

    <bool name="enable_automatic_storage_management">false</bool>

</resources>

    <!-- Preference title for the automatic storage manager toggle. [CHAR LIMIT=60]-->

    <string name="automatic_storage_manager_preference_title">Storage manager</string>

    <!-- Automatic storage management service label. [CHAR LIMIT=40]-->

    <string name="automatic_storage_manager_service_label">Automatic Storage Management Service</string>

</resources>

/*

 * Copyright (C) 2016 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.deletionhelper;

import android.app.job.JobInfo;

import android.app.job.JobScheduler;

import android.content.BroadcastReceiver;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.text.format.DateUtils;

/**

 * A {@link BroadcastReceiver} listening for {@link Intent#ACTION_BOOT_COMPLETED} broadcasts to

 * schedule an automatic storage management job. Automatic storage management jobs are only

 * scheduled once a day for a plugged in device.

 */

public class AutomaticStorageBroadcastReceiver extends BroadcastReceiver {

    private static final int AUTOMATIC_STORAGE_JOB_ID = 0;

    private static final long PERIOD = DateUtils.DAY_IN_MILLIS;

    @Override

    public void onReceive(Context context, Intent intent) {

        JobScheduler jobScheduler =

                (JobScheduler) context.getSystemService(Context.JOB_SCHEDULER_SERVICE);

        ComponentName component = new ComponentName(context,

                AutomaticStorageManagementJobService.class);

        JobInfo job = new JobInfo.Builder(AUTOMATIC_STORAGE_JOB_ID, component)

                .setRequiresCharging(true)

                .setRequiresDeviceIdle(true)

                .setPeriodic(PERIOD)

                .build();

        jobScheduler.schedule(job);

    }

}

/*

 * Copyright (C) 2016 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.deletionhelper;

import android.app.job.JobParameters;

import android.app.job.JobService;

import android.content.Context;

import android.content.SharedPreferences;

import android.os.storage.StorageManager;

import android.os.storage.VolumeInfo;

import android.provider.Settings;

import android.util.Log;

import com.android.settings.overlay.FeatureFactory;

import com.android.settings.overlay.StorageManagementJobProvider;

import java.io.File;

/**

 * {@link JobService} class to start automatic storage clearing jobs to free up space. The job only

 * starts if the device is under a certain percent of free storage.

 */

public class AutomaticStorageManagementJobService extends JobService {

    private static final String TAG = "AsmJobService";

    private static final String SHARED_PREFRENCES_NAME = "automatic_storage_manager_settings";

    private static final String KEY_DAYS_TO_RETAIN = "days_to_retain";

    private static final long DEFAULT_LOW_FREE_PERCENT = 15;

    private StorageManagementJobProvider mProvider;

    @Override

    public boolean onStartJob(JobParameters args) {

        boolean isEnabled =

                Settings.Secure.getInt(getContentResolver(),

                        Settings.Secure.AUTOMATIC_STORAGE_MANAGER_ENABLED, 0) != 0;

        if (!isEnabled) {

            return false;

        }

        StorageManager manager = getSystemService(StorageManager.class);

        VolumeInfo internalVolume = manager.findVolumeById(VolumeInfo.ID_PRIVATE_INTERNAL);

        final File dataPath = internalVolume.getPath();

        if (!volumeNeedsManagement(dataPath)) {

            Log.i(TAG, "Skipping automatic storage management.");

            return false;

        }

        mProvider = FeatureFactory.getFactory(this).getStorageManagementJobProvider();

        if (mProvider != null) {

            return mProvider.onStartJob(this, args, getDaysToRetain());

        }

        return false;

    }

    @Override

    public boolean onStopJob(JobParameters args) {

        if (mProvider != null) {

            return mProvider.onStopJob(this, args);

        }

        return false;

    }

    private int getDaysToRetain() {

        SharedPreferences sharedPreferences =

                getSharedPreferences(SHARED_PREFRENCES_NAME, Context.MODE_PRIVATE);

        return sharedPreferences.getInt(KEY_DAYS_TO_RETAIN,

                AutomaticStorageManagerSettings.DEFAULT_DAYS_TO_RETAIN);

    }

    private boolean volumeNeedsManagement(final File dataPath) {

        long lowStorageThreshold = (dataPath.getTotalSpace() * DEFAULT_LOW_FREE_PERCENT) / 100;

        return dataPath.getFreeSpace() < lowStorageThreshold;

    }

}

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