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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_UKM_DEBUG_UKM_DEBUG_DATA_EXTRACTOR_H_
#define COMPONENTS_UKM_DEBUG_UKM_DEBUG_DATA_EXTRACTOR_H_
#include "base/values.h"
#include "components/ukm/ukm_service.h"
namespace ukm {
class UkmService;
namespace debug {
// Extracts UKM data as an HTML page for debugging purposes.
class UkmDebugDataExtractor {
public:
UkmDebugDataExtractor();
UkmDebugDataExtractor(const UkmDebugDataExtractor&) = delete;
UkmDebugDataExtractor& operator=(const UkmDebugDataExtractor&) = delete;
~UkmDebugDataExtractor();
// Returns UKM data structured in a dictionary.
static base::Value GetStructuredData(const UkmService* ukm_service);
// Convert uint64 to pair of int32 to match the spec of Value. JS doesn't
// support uint64 while most of UKM metrics are 64 bit numbers. So,
// they will be passed as a pair of 32 bit ints. The first item is the
// 32 bit representation of the high 32 bit and the second item is the lower
// 32 bit of the 64 bit number.
static base::Value UInt64AsPairOfInt(uint64_t v);
};
} // namespace debug
} // namespace ukm
#endif // COMPONENTS_UKM_DEBUG_UKM_DEBUG_DATA_EXTRACTOR_H_
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