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// Copyright 2016 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.
#ifndef COMPONENTS_METRICS_PERSISTED_LOGS_METRICS_H_
#define COMPONENTS_METRICS_PERSISTED_LOGS_METRICS_H_
#include "base/macros.h"
#include "components/metrics/persisted_logs.h"
namespace metrics {
// Interface for recording metrics from PersistedLogs.
class PersistedLogsMetrics {
public:
// Used to produce a histogram that keeps track of the status of recalling
// persisted per logs.
enum LogReadStatus {
RECALL_SUCCESS, // We were able to correctly recall a persisted log.
LIST_EMPTY, // Attempting to recall from an empty list.
LIST_SIZE_MISSING, // Failed to recover list size using GetAsInteger().
LIST_SIZE_TOO_SMALL, // Too few elements in the list (less than 3).
LIST_SIZE_CORRUPTION, // List size is not as expected.
LOG_STRING_CORRUPTION, // Failed to recover log string using GetAsString().
CHECKSUM_CORRUPTION, // Failed to verify checksum.
CHECKSUM_STRING_CORRUPTION, // Failed to recover checksum string using
// GetAsString().
DECODE_FAIL, // Failed to decode log.
DEPRECATED_XML_PROTO_MISMATCH, // The XML and protobuf logs have
// inconsistent data.
END_RECALL_STATUS // Number of bins to use to create the histogram.
};
PersistedLogsMetrics() {}
virtual ~PersistedLogsMetrics() {}
virtual void RecordLogReadStatus(LogReadStatus status){};
virtual void RecordCompressionRatio(
size_t compressed_size, size_t original_size) {}
virtual void RecordDroppedLogSize(size_t size) {}
virtual void RecordDroppedLogsNum(int dropped_logs_num) {}
private:
DISALLOW_COPY_AND_ASSIGN(PersistedLogsMetrics);
};
} // namespace metrics
#endif // COMPONENTS_METRICS_PERSISTED_LOGS_METRICS_H_
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