| /* |
| * 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.content.res.Configuration; |
| import android.os.Bundle; |
| import android.os.PersistableBundle; |
| import android.telephony.CarrierConfigManager; |
| import android.telephony.SmsManager; |
| import android.telephony.SubscriptionInfo; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.SubscriptionManager.OnSubscriptionsChangedListener; |
| import android.util.ArrayMap; |
| |
| import com.android.internal.telephony.IccCardConstants; |
| import com.android.internal.telephony.TelephonyIntents; |
| |
| 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 for changes made to SubInfoRecords and for a broadcast telling us |
| * the TelephonyManager has loaded the information needed in order to get the mcc/mnc's for |
| * each subscription Id. When either of these broadcasts are received, we rebuild the |
| * MmsConfig table. |
| * |
| */ |
| private final BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| LogUtil.i("MmsConfigManager receiver action: " + action); |
| if (action.equals(TelephonyIntents.ACTION_SIM_STATE_CHANGED) || |
| action.equals(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED)) { |
| loadInBackground(); |
| } |
| } |
| }; |
| |
| private final OnSubscriptionsChangedListener mOnSubscriptionsChangedListener = |
| new OnSubscriptionsChangedListener() { |
| @Override |
| public void onSubscriptionsChanged() { |
| loadInBackground(); |
| } |
| }; |
| |
| |
| public void init(final Context context) { |
| mContext = context; |
| mSubscriptionManager = SubscriptionManager.from(context); |
| |
| // TODO: When this object "finishes" we should unregister. |
| final IntentFilter intentFilterLoaded = |
| new IntentFilter(TelephonyIntents.ACTION_SIM_STATE_CHANGED); |
| intentFilterLoaded.addAction(CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED); |
| context.registerReceiver(mReceiver, intentFilterLoaded); |
| |
| // TODO: When this object "finishes" we should unregister by invoking |
| // SubscriptionManager.getInstance(mContext).unregister(mOnSubscriptionsChangedListener); |
| // This is not strictly necessary because it will be unregistered if the |
| // notification fails but it is good form. |
| |
| // Register for SubscriptionInfo list changes which is guaranteed |
| // to invoke onSubscriptionsChanged the first time. |
| SubscriptionManager.from(mContext).addOnSubscriptionsChangedListener( |
| mOnSubscriptionsChangedListener); |
| } |
| |
| private void loadInBackground() { |
| // TODO (ywen) - AsyncTask to avoid creating a new thread? |
| new Thread() { |
| @Override |
| public void run() { |
| Configuration configuration = mContext.getResources().getConfiguration(); |
| // Always put the mnc/mcc in the log so we can tell which mms_config.xml |
| // was loaded. |
| LogUtil.i("MmsConfigManager loads in background mcc/mnc: " + |
| configuration.mcc + "/" + configuration.mnc); |
| 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 cannot be found or if this function is called before the |
| * TelephonyManager has set up the SIMs, or if loadInBackground is still spawning a |
| * thread after a recent LISTEN_SUBSCRIPTION_INFO_LIST_CHANGED event. |
| */ |
| 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 CarrierConfigManager and filtered to only include MMS config |
| * variables. 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>(); |
| final CarrierConfigManager configManager = |
| (CarrierConfigManager) context.getSystemService(Context.CARRIER_CONFIG_SERVICE); |
| for (SubscriptionInfo sub : subs) { |
| final int subId = sub.getSubscriptionId(); |
| PersistableBundle config = configManager.getConfigForSubId(subId); |
| newConfigMap.put(subId, SmsManager.getMmsConfig(config)); |
| } |
| synchronized(mSubIdConfigMap) { |
| mSubIdConfigMap.clear(); |
| mSubIdConfigMap.putAll(newConfigMap); |
| } |
| } |
| |
| } |