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/*
* Copyright (C) 2018 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.
*/
#define DEBUG false // STOPSHIP if true
#include "Log.h"
#include "SubscriberReporter.h"
using android::IBinder;
using std::lock_guard;
namespace android {
namespace os {
namespace statsd {
using std::vector;
void SubscriberReporter::setBroadcastSubscriber(const ConfigKey& configKey,
int64_t subscriberId,
const sp<IBinder>& intentSender) {
VLOG("SubscriberReporter::setBroadcastSubscriber called.");
lock_guard<std::mutex> lock(mLock);
mIntentMap[configKey][subscriberId] = intentSender;
}
void SubscriberReporter::unsetBroadcastSubscriber(const ConfigKey& configKey,
int64_t subscriberId) {
VLOG("SubscriberReporter::unsetBroadcastSubscriber called.");
lock_guard<std::mutex> lock(mLock);
auto subscriberMapIt = mIntentMap.find(configKey);
if (subscriberMapIt != mIntentMap.end()) {
subscriberMapIt->second.erase(subscriberId);
if (subscriberMapIt->second.empty()) {
mIntentMap.erase(configKey);
}
}
}
void SubscriberReporter::removeConfig(const ConfigKey& configKey) {
VLOG("SubscriberReporter::removeConfig called.");
lock_guard<std::mutex> lock(mLock);
mIntentMap.erase(configKey);
}
void SubscriberReporter::alertBroadcastSubscriber(const ConfigKey& configKey,
const Subscription& subscription,
const MetricDimensionKey& dimKey) const {
// Reminder about ids:
// subscription id - name of the Subscription (that ties the Alert to the broadcast)
// subscription rule_id - the name of the Alert (that triggers the broadcast)
// subscriber_id - name of the PendingIntent to use to send the broadcast
// config uid - the uid that uploaded the config (and therefore gave the PendingIntent,
// although the intent may be to broadcast to a different uid)
// config id - the name of this config (for this particular uid)
VLOG("SubscriberReporter::alertBroadcastSubscriber called.");
lock_guard<std::mutex> lock(mLock);
if (!subscription.has_broadcast_subscriber_details()
|| !subscription.broadcast_subscriber_details().has_subscriber_id()) {
ALOGE("Broadcast subscriber does not have an id.");
return;
}
int64_t subscriberId = subscription.broadcast_subscriber_details().subscriber_id();
vector<String16> cookies;
cookies.reserve(subscription.broadcast_subscriber_details().cookie_size());
for (auto& cookie : subscription.broadcast_subscriber_details().cookie()) {
cookies.push_back(String16(cookie.c_str()));
}
auto it1 = mIntentMap.find(configKey);
if (it1 == mIntentMap.end()) {
ALOGW("Cannot inform subscriber for missing config key %s ", configKey.ToString().c_str());
return;
}
auto it2 = it1->second.find(subscriberId);
if (it2 == it1->second.end()) {
ALOGW("Cannot inform subscriber of config %s for missing subscriberId %lld ",
configKey.ToString().c_str(), (long long)subscriberId);
return;
}
sendBroadcastLocked(it2->second, configKey, subscription, cookies, dimKey);
}
void SubscriberReporter::sendBroadcastLocked(const sp<IBinder>& intentSender,
const ConfigKey& configKey,
const Subscription& subscription,
const vector<String16>& cookies,
const MetricDimensionKey& dimKey) const {
VLOG("SubscriberReporter::sendBroadcastLocked called.");
if (mStatsCompanionService == nullptr) {
ALOGW("Failed to send subscriber broadcast: could not access StatsCompanionService.");
return;
}
mStatsCompanionService->sendSubscriberBroadcast(
intentSender,
configKey.GetUid(),
configKey.GetId(),
subscription.id(),
subscription.rule_id(),
cookies,
getStatsDimensionsValue(dimKey.getDimensionKeyInWhat()));
}
void getStatsDimensionsValueHelper(const vector<FieldValue>& dims, size_t* index, int depth,
int prefix, vector<StatsDimensionsValue>* output) {
size_t count = dims.size();
while (*index < count) {
const auto& dim = dims[*index];
const int valueDepth = dim.mField.getDepth();
const int valuePrefix = dim.mField.getPrefix(depth);
if (valueDepth > 2) {
ALOGE("Depth > 2 not supported");
return;
}
if (depth == valueDepth && valuePrefix == prefix) {
switch (dim.mValue.getType()) {
case INT:
output->push_back(StatsDimensionsValue(dim.mField.getPosAtDepth(depth),
dim.mValue.int_value));
break;
case LONG:
output->push_back(StatsDimensionsValue(dim.mField.getPosAtDepth(depth),
dim.mValue.long_value));
break;
case FLOAT:
output->push_back(StatsDimensionsValue(dim.mField.getPosAtDepth(depth),
dim.mValue.float_value));
break;
case STRING:
output->push_back(StatsDimensionsValue(dim.mField.getPosAtDepth(depth),
String16(dim.mValue.str_value.c_str())));
break;
default:
break;
}
(*index)++;
} else if (valueDepth > depth && valuePrefix == prefix) {
vector<StatsDimensionsValue> childOutput;
getStatsDimensionsValueHelper(dims, index, depth + 1, dim.mField.getPrefix(depth + 1),
&childOutput);
output->push_back(StatsDimensionsValue(dim.mField.getPosAtDepth(depth), childOutput));
} else {
return;
}
}
}
StatsDimensionsValue SubscriberReporter::getStatsDimensionsValue(const HashableDimensionKey& dim) {
if (dim.getValues().size() == 0) {
return StatsDimensionsValue();
}
vector<StatsDimensionsValue> fields;
size_t index = 0;
getStatsDimensionsValueHelper(dim.getValues(), &index, 0, 0, &fields);
return StatsDimensionsValue(dim.getValues()[0].mField.getTag(), fields);
}
} // namespace statsd
} // namespace os
} // namespace android
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