Add checkin activity recording to gcm recorder.

google_apis/gcm/engine/checkin_request.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "google_apis/gcm/engine/checkin_request.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
+#include "google_apis/gcm/monitoring/gcm_stats_recorder.h"
 #include "google_apis/gcm/protocol/checkin.pb.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
 namespace gcm {
 
 namespace {
 const char kCheckinURL[] = "https://android.clients.google.com/checkin";
 const char kRequestContentType[] = "application/x-protobuf";
 const int kRequestVersionValue = 2;
 const int kDefaultUserSerialNumber = 0;
 
 // This enum is also used in an UMA histogram (GCMCheckinRequestStatus
 // enum defined in tools/metrics/histograms/histogram.xml). Hence the entries
 // here shouldn't be deleted or re-ordered and new ones should be added to
-// the end.
+// the end, and update the GetCheckinRequestStatusString(...) below.
 enum CheckinRequestStatus {
   SUCCESS,                    // Checkin completed successfully.
   URL_FETCHING_FAILED,        // URL fetching failed.
   HTTP_BAD_REQUEST,           // The request was malformed.
   HTTP_UNAUTHORIZED,          // The security token didn't match the android id.
   HTTP_NOT_OK,                // HTTP status was not OK.
   RESPONSE_PARSING_FAILED,    // Check in response parsing failed.
   ZERO_ID_OR_TOKEN,           // Either returned android id or security token
                               // was zero.
   // NOTE: always keep this entry at the end. Add new status types only
   // immediately above this line. Make sure to update the corresponding
   // histogram enum accordingly.
   STATUS_COUNT
 };
 
-void RecordCheckinStatusToUMA(CheckinRequestStatus status) {
+// Returns string representation of enum CheckinRequestStatus.
+std::string GetCheckinRequestStatusString(CheckinRequestStatus status) {
+  switch (status) {
+    case SUCCESS:
+      return "SUCCESS";
+    case URL_FETCHING_FAILED:
+      return "URL_FETCHING_FAILED";
+    case HTTP_BAD_REQUEST:
+      return "HTTP_BAD_REQUEST";
+    case HTTP_UNAUTHORIZED:
+      return "HTTP_UNAUTHORIZED";
+    case HTTP_NOT_OK:
+      return "HTTP_NOT_OK";
+    case RESPONSE_PARSING_FAILED:
+      return "RESPONSE_PARSING_FAILED";
+    case ZERO_ID_OR_TOKEN:
+      return "ZERO_ID_OR_TOKEN";
+    default:
+      NOTREACHED();
+      return "UNKNOWN_STATUS";
+  }
+}
+
+// Record checkin failure status to both stats recorder and to UMA.

[jianli, 2014/05/01 23:02:37]

nit: please update comment

[juyik, 2014/05/02 00:41:54]

Done.

+void RecordCheckinStatusAndReportUMA(CheckinRequestStatus status,
+                                     GCMStatsRecorder* recorder,
+                                     bool will_retry) {
   UMA_HISTOGRAM_ENUMERATION("GCM.CheckinRequestStatus", status, STATUS_COUNT);
+  if (status == SUCCESS)
+    recorder->RecordCheckinSuccess();
+  else {
+    recorder->RecordCheckinFailure(GetCheckinRequestStatusString(status),
+                                   will_retry);
+  }
 }
 
 }  // namespace
 
 CheckinRequest::RequestInfo::RequestInfo(
     uint64 android_id,
     uint64 security_token,
     const std::string& settings_digest,
     const std::vector<std::string>& account_ids,
     const checkin_proto::ChromeBuildProto& chrome_build_proto)
     : android_id(android_id),
       security_token(security_token),
       settings_digest(settings_digest),
       account_ids(account_ids),
       chrome_build_proto(chrome_build_proto) {
 }
 
 CheckinRequest::RequestInfo::~RequestInfo() {}
 
 CheckinRequest::CheckinRequest(
     const RequestInfo& request_info,
     const net::BackoffEntry::Policy& backoff_policy,
     const CheckinRequestCallback& callback,
-    net::URLRequestContextGetter* request_context_getter)
+    net::URLRequestContextGetter* request_context_getter,
+    GCMStatsRecorder* recorder)
     : request_context_getter_(request_context_getter),
       callback_(callback),
       backoff_entry_(&backoff_policy),
       request_info_(request_info),
+      recorder_(recorder),
       weak_ptr_factory_(this) {
 }
 
 CheckinRequest::~CheckinRequest() {}
 
 void CheckinRequest::Start() {
   DCHECK(!url_fetcher_.get());
 
   checkin_proto::AndroidCheckinRequest request;
   request.set_id(request_info_.android_id);
@@ skipping 18 matching lines @@
     request.add_account_cookie("[" + *iter + "]");
   }
 
   std::string upload_data;
   CHECK(request.SerializeToString(&upload_data));
 
   url_fetcher_.reset(
       net::URLFetcher::Create(GURL(kCheckinURL), net::URLFetcher::POST, this));
   url_fetcher_->SetRequestContext(request_context_getter_);
   url_fetcher_->SetUploadData(kRequestContentType, upload_data);
+  recorder_->RecordCheckinInitiated(request_info_.android_id);
   url_fetcher_->Start();
 }
 
 void CheckinRequest::RetryWithBackoff(bool update_backoff) {
   if (update_backoff) {
     backoff_entry_.InformOfRequest(false);
     url_fetcher_.reset();
   }
 
   if (backoff_entry_.ShouldRejectRequest()) {
     DVLOG(1) << "Delay GCM checkin for: "
              << backoff_entry_.GetTimeUntilRelease().InMilliseconds()
              << " milliseconds.";
+    recorder_->RecordCheckinDelayedDueToBackoff(
+        backoff_entry_.GetTimeUntilRelease().InMilliseconds());
     base::MessageLoop::current()->PostDelayedTask(
         FROM_HERE,
         base::Bind(&CheckinRequest::RetryWithBackoff,
                    weak_ptr_factory_.GetWeakPtr(),
                    false),
         backoff_entry_.GetTimeUntilRelease());
     return;
   }
 
   Start();
 }
 
 void CheckinRequest::OnURLFetchComplete(const net::URLFetcher* source) {
   std::string response_string;
   checkin_proto::AndroidCheckinResponse response_proto;
   if (!source->GetStatus().is_success()) {
     LOG(ERROR) << "Failed to get checkin response. Fetcher failed. Retrying.";
-    RecordCheckinStatusToUMA(URL_FETCHING_FAILED);
+    RecordCheckinStatusAndReportUMA(URL_FETCHING_FAILED, recorder_, true);
     RetryWithBackoff(true);
     return;
   }
 
   net::HttpStatusCode response_status = static_cast<net::HttpStatusCode>(
       source->GetResponseCode());
   if (response_status == net::HTTP_BAD_REQUEST ||
       response_status == net::HTTP_UNAUTHORIZED) {
     // BAD_REQUEST indicates that the request was malformed.
     // UNAUTHORIZED indicates that security token didn't match the android id.
     LOG(ERROR) << "No point retrying the checkin with status: "
                << response_status << ". Checkin failed.";
-    RecordCheckinStatusToUMA(response_status == net::HTTP_BAD_REQUEST ?
-        HTTP_BAD_REQUEST : HTTP_UNAUTHORIZED);
+    CheckinRequestStatus status = response_status == net::HTTP_BAD_REQUEST ?
+        HTTP_BAD_REQUEST : HTTP_UNAUTHORIZED;
+    RecordCheckinStatusAndReportUMA(status, recorder_, false);
     callback_.Run(response_proto);
     return;
   }
 
   if (response_status != net::HTTP_OK ||
       !source->GetResponseAsString(&response_string) ||
       !response_proto.ParseFromString(response_string)) {
     LOG(ERROR) << "Failed to get checkin response. HTTP Status: "
                << response_status << ". Retrying.";
-    RecordCheckinStatusToUMA(response_status != net::HTTP_OK ?
-        HTTP_NOT_OK : RESPONSE_PARSING_FAILED);
+    CheckinRequestStatus status = response_status != net::HTTP_OK ?
+        HTTP_NOT_OK : RESPONSE_PARSING_FAILED;
+    RecordCheckinStatusAndReportUMA(status, recorder_, true);
     RetryWithBackoff(true);
     return;
   }
 
   if (!response_proto.has_android_id() ||
       !response_proto.has_security_token() ||
       response_proto.android_id() == 0 ||
       response_proto.security_token() == 0) {
     LOG(ERROR) << "Android ID or security token is 0. Retrying.";
-    RecordCheckinStatusToUMA(ZERO_ID_OR_TOKEN);
+    RecordCheckinStatusAndReportUMA(ZERO_ID_OR_TOKEN, recorder_, true);
     RetryWithBackoff(true);
     return;
   }
 
-  RecordCheckinStatusToUMA(SUCCESS);
+  RecordCheckinStatusAndReportUMA(SUCCESS, recorder_, false);
   callback_.Run(response_proto);
 }
 
 }  // namespace gcm