1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CHROME_COMMON_METRICS_METRICS_SERVICE_BASE_H_
6 #define CHROME_COMMON_METRICS_METRICS_SERVICE_BASE_H_
8 #include "base/basictypes.h"
9 #include "base/metrics/histogram_base.h"
10 #include "base/metrics/histogram_flattener.h"
11 #include "base/metrics/histogram_snapshot_manager.h"
12 #include "chrome/common/metrics/metrics_log_manager.h"
15 class HistogramSamples
;
18 // This class provides base functionality for logging metrics data.
19 // TODO(ananta): Factor out more common code from chrome and chrome frame
20 // metrics service into this class.
21 class MetricsServiceBase
: public base::HistogramFlattener
{
23 // HistogramFlattener interface (override) methods.
24 virtual void RecordDelta(const base::HistogramBase
& histogram
,
25 const base::HistogramSamples
& snapshot
) OVERRIDE
;
26 virtual void InconsistencyDetected(
27 base::HistogramBase::Inconsistency problem
) OVERRIDE
;
28 virtual void UniqueInconsistencyDetected(
29 base::HistogramBase::Inconsistency problem
) OVERRIDE
;
30 virtual void InconsistencyDetectedInLoggedCount(int amount
) OVERRIDE
;
34 virtual ~MetricsServiceBase();
36 // The metrics server's URL.
37 static const char kServerUrl
[];
39 // The MIME type for the uploaded metrics data.
40 static const char kMimeType
[];
42 // Record complete list of histograms into the current log.
43 // Called when we close a log.
44 void RecordCurrentHistograms();
46 // Manager for the various in-flight logs.
47 MetricsLogManager log_manager_
;
50 // |histogram_snapshot_manager_| prepares histogram deltas for transmission.
51 base::HistogramSnapshotManager histogram_snapshot_manager_
;
53 DISALLOW_COPY_AND_ASSIGN(MetricsServiceBase
);
56 #endif // CHROME_COMMON_METRICS_METRICS_SERVICE_BASE_H_