| /* |
| * Copyright (C) 2014 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.mms.service; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.Bundle; |
| import android.telephony.CarrierConfigManager; |
| import android.telephony.SmsManager; |
| import android.telephony.SubscriptionInfo; |
| import android.telephony.SubscriptionManager; |
| import android.util.ArrayMap; |
| |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * This class manages cached copies of all the MMS configuration for each subscription ID. |
| * A subscription ID loosely corresponds to a particular SIM. See the |
| * {@link android.telephony.SubscriptionManager} for more details. |
| * |
| */ |
| public class MmsConfigManager { |
| private static volatile MmsConfigManager sInstance = new MmsConfigManager(); |
| |
| public static MmsConfigManager getInstance() { |
| return sInstance; |
| } |
| |
| // Map the various subIds to their corresponding MmsConfigs. |
| private final Map<Integer, Bundle> mSubIdConfigMap = new ArrayMap<Integer, Bundle>(); |
| private Context mContext; |
| private SubscriptionManager mSubscriptionManager; |
| |
| /** This receiver listens to ACTION_CARRIER_CONFIG_CHANGED to load the MMS config. */ |
| private final BroadcastReceiver mReceiver = |
| new BroadcastReceiver() { |
| public void onReceive(Context context, Intent intent) { |
| LogUtil.i("MmsConfigManager receives ACTION_CARRIER_CONFIG_CHANGED"); |
| loadInBackground(); |
| } |
| }; |
| |
| public void init(final Context context) { |
| mContext = context; |
| mSubscriptionManager = SubscriptionManager.from(context); |
| context.registerReceiver( |
| mReceiver, new IntentFilter(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED)); |
| LogUtil.i("MmsConfigManager loads mms config in init()"); |
| load(context); |
| } |
| |
| private void loadInBackground() { |
| // TODO (ywen) - AsyncTask to avoid creating a new thread? |
| new Thread() { |
| @Override |
| public void run() { |
| load(mContext); |
| } |
| }.start(); |
| } |
| |
| /** |
| * Find and return the MMS config for a particular subscription id. |
| * |
| * @param subId Subscription Id of the desired MMS config bundle |
| * @return MMS config bundle for the particular subscription Id. This function can return null |
| * if the MMS config is not loaded yet. |
| */ |
| public Bundle getMmsConfigBySubId(int subId) { |
| Bundle mmsConfig; |
| synchronized(mSubIdConfigMap) { |
| mmsConfig = mSubIdConfigMap.get(subId); |
| } |
| LogUtil.i("mms config for sub " + subId + ": " + mmsConfig); |
| // Return a copy so that callers can mutate it. |
| if (mmsConfig != null) { |
| return new Bundle(mmsConfig); |
| } |
| return null; |
| } |
| |
| /** |
| * This loads the MMS config for each active subscription. |
| * |
| * MMS config is fetched from SmsManager#getCarrierConfigValues(). The resulting bundles are |
| * stored in mSubIdConfigMap. |
| */ |
| private void load(Context context) { |
| List<SubscriptionInfo> subs = mSubscriptionManager.getActiveSubscriptionInfoList(); |
| if (subs == null || subs.size() < 1) { |
| LogUtil.e(" Failed to load mms config: empty getActiveSubInfoList"); |
| return; |
| } |
| // Load all the config bundles into a new map and then swap it with the real map to avoid |
| // blocking. |
| final Map<Integer, Bundle> newConfigMap = new ArrayMap<Integer, Bundle>(); |
| for (SubscriptionInfo sub : subs) { |
| final int subId = sub.getSubscriptionId(); |
| LogUtil.i("MmsConfigManager loads mms config for " |
| + sub.getMccString() + "/" + sub.getMncString() |
| + ", CarrierId " + sub.getCarrierId()); |
| newConfigMap.put( |
| subId, |
| SmsManager.getSmsManagerForSubscriptionId(subId).getCarrierConfigValues()); |
| } |
| synchronized(mSubIdConfigMap) { |
| mSubIdConfigMap.clear(); |
| mSubIdConfigMap.putAll(newConfigMap); |
| } |
| } |
| |
| } |