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// 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.
#ifndef CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_H_
#define CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/threading/thread_checker.h"
class ChromeMetricsServiceClient;
class PrefService;
namespace base {
class FilePath;
}
namespace metrics {
class MetricsService;
class MetricsStateManager;
}
namespace rappor {
class RapporService;
}
namespace chrome_variations {
class VariationsService;
}
// MetricsServicesManager is a helper class that has ownership over the various
// metrics-related services in Chrome: MetricsService (via its client),
// RapporService and VariationsService.
class MetricsServicesManager {
public:
// Creates the MetricsServicesManager with the |local_state| prefs service.
explicit MetricsServicesManager(PrefService* local_state);
virtual ~MetricsServicesManager();
// Returns the MetricsService, creating it if it hasn't been created yet (and
// additionally creating the ChromeMetricsServiceClient in that case).
metrics::MetricsService* GetMetricsService();
// Returns the GetRapporService, creating it if it hasn't been created yet.
rappor::RapporService* GetRapporService();
// Returns the VariationsService, creating it if it hasn't been created yet.
chrome_variations::VariationsService* GetVariationsService();
// Should be called when a plugin loading error occurs.
void OnPluginLoadingError(const base::FilePath& plugin_path);
private:
// Returns the ChromeMetricsServiceClient, creating it if it hasn't been
// created yet (and additionally creating the MetricsService in that case).
ChromeMetricsServiceClient* GetChromeMetricsServiceClient();
metrics::MetricsStateManager* GetMetricsStateManager();
// Returns true iff metrics reporting is enabled.
bool IsMetricsReportingEnabled() const;
// Ensures that all functions are called from the same thread.
base::ThreadChecker thread_checker_;
// Weak pointer to the local state prefs store.
PrefService* local_state_;
// MetricsStateManager which is passed as a parameter to service constructors.
scoped_ptr<metrics::MetricsStateManager> metrics_state_manager_;
// Chrome embedder implementation of the MetricsServiceClient. Owns the
// MetricsService.
scoped_ptr<ChromeMetricsServiceClient> metrics_service_client_;
// The RapporService, for RAPPOR metric uploads.
scoped_ptr<rappor::RapporService> rappor_service_;
// The VariationsService, for server-side experiments infrastructure.
scoped_ptr<chrome_variations::VariationsService> variations_service_;
DISALLOW_COPY_AND_ASSIGN(MetricsServicesManager);
};
#endif // CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_H_
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