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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Helper class to manage the process of uploading metrics.
#include "statsreport/aggregator-mac.h"
#include "statsreport/common/const_product.h"
#include "statsreport/const-mac.h"
#include "statsreport/formatter.h"
#include "statsreport/uploader.h"
using stats_report::Formatter;
using stats_report::MetricsAggregatorMac;
namespace stats_report {
bool AggregateMetrics() {
using stats_report::MetricsAggregatorMac;
MetricsAggregatorMac aggregator(g_global_metrics);
if (!aggregator.AggregateMetrics()) {
DLOG(WARNING) << "Metrics aggregation failed for reasons unknown";
return false;
}
return true;
}
static bool ReportMetrics(const char* extra_url_data,
const char* user_agent,
uint32 interval,
StatsUploader* stats_uploader) {
NSDictionary *dict =
[NSDictionary dictionaryWithContentsOfFile:O3DStatsPath()];
if (dict == nil)
return false;
Formatter formatter(PRODUCT_NAME_STRING, interval);
NSArray *keys = [dict allKeys];
int count = [keys count];
for(int x = 0; x < count; ++x) {
NSString *name = [keys objectAtIndex:x];
NSString *short_name = [name substringFromIndex:2];
if ([short_name length] == 0)
continue;
const char *short_name_c_str = [short_name UTF8String];
id item = [dict objectForKey:name];
MetricBase *current = NULL;
switch([name characterAtIndex:0]) {
case 'C':
current = new CountMetric(short_name_c_str,
[item longLongValue]);
break;
case 'B':
current = new BoolMetric(short_name_c_str,
[item boolValue] == YES);
break;
case 'T': {
TimingMetric::TimingData data;
data.count = [[item objectAtIndex:0] intValue];
data.sum = [[item objectAtIndex:1] longLongValue];
data.minimum = [[item objectAtIndex:2] longLongValue];
data.maximum = [[item objectAtIndex:3] longLongValue];
data.align = 0; // Pleases the compiler.
current = new TimingMetric(short_name_c_str, data);
}
break;
case 'I':
current = new IntegerMetric(short_name_c_str,
[item longLongValue]);
break;
// We don't send this piece of data as it's not a metric.
case 'L': // "LastTransmission"
break;
}
if (current != NULL)
formatter.AddMetric(current);
}
DLOG(INFO) << "formatter.output() = " << formatter.output();
return stats_uploader->UploadMetrics(extra_url_data,
user_agent,
formatter.output().c_str());
}
void ResetPersistentMetrics() {
[[NSFileManager defaultManager] removeFileAtPath:O3DStatsPath()
handler:nil];
}
// Returns:
// true if metrics were uploaded successfully, false otherwise
// Note: False does not necessarily mean an error, just that no metrics
// were uploaded
bool AggregateAndReportMetrics(const char* extra_url_arguments,
const char* user_agent,
bool force_report,
bool save_old_metrics) {
StatsUploader stats_uploader;
return TestableAggregateAndReportMetrics(extra_url_arguments, user_agent,
force_report, save_old_metrics,
&stats_uploader);
}
static int GetLastTransmissionTime() {
NSDictionary *dict =
[NSDictionary dictionaryWithContentsOfFile:O3DStatsPath()];
if (dict == nil)
return 0;
NSNumber *when = [dict objectForKey:kLastTransmissionTimeValueName];
if (when == nil)
return 0;
return [when intValue];
}
static void SetLastTransmissionTime(int when) {
NSMutableDictionary *dict =
[NSMutableDictionary dictionaryWithContentsOfFile:O3DStatsPath()];
if (dict == nil)
dict = [NSDictionary dictionaryWithObject:[NSNumber numberWithInt:when]
forKey:kLastTransmissionTimeValueName];
else
[dict setObject:[NSNumber numberWithInt:when]
forKey:kLastTransmissionTimeValueName];
[dict writeToFile:O3DStatsPath() atomically:YES];
}
// Returns:
// true if metrics were uploaded successfully, false otherwise
// Note: False does not necessarily mean an error, just that no metrics
// were uploaded
bool TestableAggregateAndReportMetrics(const char* extra_url_arguments,
const char* user_agent,
bool force_report,
bool save_old_metrics,
StatsUploader* stats_uploader) {
// Open the store
MetricsAggregatorMac aggregator(g_global_metrics);
int32 now = static_cast<int32>(time(NULL));
// Retrieve the last transmission time
int32 last_transmission_time = GetLastTransmissionTime();
// if last transmission time is missing or at all dodgy, then
// let's wipe all info and start afresh.
if (last_transmission_time == 0 || last_transmission_time > now) {
LOG(WARNING) << "dodgy or missing last transmission time, wiping stats";
if (!save_old_metrics) ResetPersistentMetrics();
SetLastTransmissionTime(now);
// Force a report of the stats so we get everything currently in there.
force_report = true;
}
if (!AggregateMetrics()) {
DLOG(INFO) << "AggregateMetrics returned false";
return false;
}
DLOG(INFO) << "Last transmission time: " << last_transmission_time;
DLOG(INFO) << "Now: " << now;
DLOG(INFO) << "Now - Last transmission time: "
<< now - last_transmission_time;
DLOG(INFO) << "Compared to: " << kStatsUploadIntervalSec;
// Set last_transmission_time such that it will force
// an upload of the metrics
if (force_report) {
last_transmission_time = now - kStatsUploadIntervalSec;
}
if (now - last_transmission_time >= kStatsUploadIntervalSec) {
bool report_result = ReportMetrics(extra_url_arguments, user_agent,
now - last_transmission_time,
stats_uploader);
if (report_result) {
DLOG(INFO) << "Stats upload successful, resetting metrics";
ResetPersistentMetrics();
} else {
DLOG(WARNING) << "Stats upload failed";
}
// No matter what, wait another upload interval to try again. It's better
// to report older stats than hammer on the stats server exactly when it
// has failed.
SetLastTransmissionTime(now);
return report_result;
}
return false;
}
// Used primarily for testing. Default functionality.
bool StatsUploader::UploadMetrics(const char* extra_url_data,
const char* user_agent,
const char *content) {
return stats_report::UploadMetrics(extra_url_data, user_agent, content);
}
} // namespace stats_report
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