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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 GOOGLE_APIS_GCM_ENGINE_GCM_STORE_H_
#define GOOGLE_APIS_GCM_ENGINE_GCM_STORE_H_
#include <map>
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/callback_forward.h"
#include "base/memory/ref_counted.h"
#include "google_apis/gcm/base/gcm_export.h"
namespace google {
namespace protobuf {
class MessageLite;
} // namespace protobuf
} // namespace google
namespace gcm {
class MCSMessage;
// A GCM data store interface. GCM Store will handle persistence portion of RMQ,
// as well as store device and user checkin information.
class GCM_EXPORT GCMStore {
public:
// Part of load results storing user serial number mapping related values.
struct GCM_EXPORT SerialNumberMappings {
SerialNumberMappings();
~SerialNumberMappings();
int64 next_serial_number;
std::map<std::string, int64> user_serial_numbers;
};
// Container for Load(..) results.
struct GCM_EXPORT LoadResult {
LoadResult();
~LoadResult();
bool success;
uint64 device_android_id;
uint64 device_security_token;
std::vector<std::string> incoming_messages;
std::map<std::string, google::protobuf::MessageLite*> outgoing_messages;
SerialNumberMappings serial_number_mappings;
};
typedef std::vector<std::string> PersistentIdList;
// Note: callee receives ownership of |outgoing_messages|' values.
typedef base::Callback<void(const LoadResult& result)> LoadCallback;
typedef base::Callback<void(bool success)> UpdateCallback;
GCMStore();
virtual ~GCMStore();
// Load the data from persistent store and pass the initial state back to
// caller.
virtual void Load(const LoadCallback& callback) = 0;
// Clears the GCM store of all data.
virtual void Destroy(const UpdateCallback& callback) = 0;
// Sets this device's messaging credentials.
virtual void SetDeviceCredentials(uint64 device_android_id,
uint64 device_security_token,
const UpdateCallback& callback) = 0;
// Unacknowledged incoming message handling.
virtual void AddIncomingMessage(const std::string& persistent_id,
const UpdateCallback& callback) = 0;
virtual void RemoveIncomingMessage(const std::string& persistent_id,
const UpdateCallback& callback) = 0;
virtual void RemoveIncomingMessages(const PersistentIdList& persistent_ids,
const UpdateCallback& callback) = 0;
// Unacknowledged outgoing messages handling.
// Returns false if app has surpassed message limits, else returns true. Note
// that the message isn't persisted until |callback| is invoked with
// |success| == true.
virtual bool AddOutgoingMessage(const std::string& persistent_id,
const MCSMessage& message,
const UpdateCallback& callback) = 0;
virtual void RemoveOutgoingMessage(const std::string& persistent_id,
const UpdateCallback& callback) = 0;
virtual void RemoveOutgoingMessages(const PersistentIdList& persistent_ids,
const UpdateCallback& callback) = 0;
// User serial number handling.
virtual void SetNextSerialNumber(int64 next_serial_number,
const UpdateCallback& callback) = 0;
virtual void AddUserSerialNumber(const std::string& username,
int64 serial_number,
const UpdateCallback& callback) = 0;
virtual void RemoveUserSerialNumber(const std::string& username,
const UpdateCallback& callback) = 0;
private:
DISALLOW_COPY_AND_ASSIGN(GCMStore);
};
} // namespace gcm
#endif // GOOGLE_APIS_GCM_ENGINE_GCM_STORE_H_
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