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/*
* Copyright (C) 2015 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 android.support.v7.mms;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.XmlResourceParser;
import android.os.Bundle;
import android.util.Log;
import android.util.SparseArray;
import com.android.messaging.R;
/**
* The default implementation of loader for carrier config values
*/
class DefaultCarrierConfigValuesLoader implements CarrierConfigValuesLoader {
/*
* Key types
*/
public static final String KEY_TYPE_INT = "int";
public static final String KEY_TYPE_BOOL = "bool";
public static final String KEY_TYPE_STRING = "string";
private final Context mContext;
// Cached values for subIds
private final SparseArray<Bundle> mValuesCache;
DefaultCarrierConfigValuesLoader(final Context context) {
mContext = context;
mValuesCache = new SparseArray<>();
}
@Override
public Bundle get(int subId) {
subId = Utils.getEffectiveSubscriptionId(subId);
Bundle values;
boolean didLoad = false;
synchronized (this) {
values = mValuesCache.get(subId);
if (values == null) {
values = new Bundle();
mValuesCache.put(subId, values);
loadLocked(subId, values);
didLoad = true;
}
}
if (didLoad) {
Log.i(MmsService.TAG, "Carrier configs loaded: " + values);
}
return values;
}
private void loadLocked(final int subId, final Bundle values) {
// For K and earlier, load from resources
loadFromResources(subId, values);
if (Utils.hasMmsApi()) {
// For L and later, also load from system MMS service
loadFromSystem(subId, values);
}
}
/**
* Load from system, using MMS API
*
* @param subId which SIM to load for
* @param values the result to add to
*/
private static void loadFromSystem(final int subId, final Bundle values) {
try {
final Bundle systemValues = Utils.getSmsManager(subId).getCarrierConfigValues();
if (systemValues != null) {
values.putAll(systemValues);
}
} catch (final Exception e) {
Log.w(MmsService.TAG, "Calling system getCarrierConfigValues exception", e);
}
}
private void loadFromResources(final int subId, final Bundle values) {
// Get a subscription-dependent context for loading the mms_config.xml
final Context subContext = Utils.getSubDepContext(mContext, subId);
XmlResourceParser xml = null;
try {
xml = subContext.getResources().getXml(R.xml.mms_config);
new CarrierConfigXmlParser(xml, new CarrierConfigXmlParser.KeyValueProcessor() {
@Override
public void process(String type, String key, String value) {
try {
if (KEY_TYPE_INT.equals(type)) {
values.putInt(key, Integer.parseInt(value));
} else if (KEY_TYPE_BOOL.equals(type)) {
values.putBoolean(key, Boolean.parseBoolean(value));
} else if (KEY_TYPE_STRING.equals(type)) {
values.putString(key, value);
}
} catch (final NumberFormatException e) {
Log.w(MmsService.TAG, "Load carrier value from resources: "
+ "invalid " + key + "," + value + "," + type);
}
}
}).parse();
} catch (final Resources.NotFoundException e) {
Log.w(MmsService.TAG, "Can not get mms_config.xml");
} finally {
if (xml != null) {
xml.close();
}
}
}
}
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