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// Copyright 2012 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 SYNC_NOTIFIER_PUSH_CLIENT_CHANNEL_H_
#define SYNC_NOTIFIER_PUSH_CLIENT_CHANNEL_H_
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "jingle/notifier/listener/push_client_observer.h"
#include "sync/base/sync_export.h"
#include "sync/notifier/sync_system_resources.h"
namespace notifier {
class PushClient;
} // namespace notifier
namespace syncer {
// A PushClientChannel is an implementation of NetworkChannel that
// routes messages through a PushClient.
class SYNC_EXPORT_PRIVATE PushClientChannel
: public SyncNetworkChannel,
public NON_EXPORTED_BASE(notifier::PushClientObserver) {
public:
// |push_client| is guaranteed to be destroyed only when this object
// is destroyed.
explicit PushClientChannel(scoped_ptr<notifier::PushClient> push_client);
virtual ~PushClientChannel();
// invalidation::NetworkChannel implementation.
virtual void SendMessage(const std::string& message) OVERRIDE;
virtual void RequestDetailedStatus(
base::Callback<void(const base::DictionaryValue&)> callback) OVERRIDE;
// SyncNetworkChannel implementation.
// If not connected, connects with the given credentials. If
// already connected, the next connection attempt will use the given
// credentials.
virtual void UpdateCredentials(const std::string& email,
const std::string& token) OVERRIDE;
// notifier::PushClient::Observer implementation.
virtual void OnNotificationsEnabled() OVERRIDE;
virtual void OnNotificationsDisabled(
notifier::NotificationsDisabledReason reason) OVERRIDE;
virtual void OnIncomingNotification(
const notifier::Notification& notification) OVERRIDE;
const std::string& GetServiceContextForTest() const;
int64 GetSchedulingHashForTest() const;
static std::string EncodeMessageForTest(const std::string& message,
const std::string& service_context,
int64 scheduling_hash);
static bool DecodeMessageForTest(const std::string& notification,
std::string* message,
std::string* service_context,
int64* scheduling_hash);
private:
static void EncodeMessage(std::string* encoded_message,
const std::string& message,
const std::string& service_context,
int64 scheduling_hash);
static bool DecodeMessage(const std::string& data,
std::string* message,
std::string* service_context,
int64* scheduling_hash);
scoped_ptr<base::DictionaryValue> CollectDebugData() const;
scoped_ptr<notifier::PushClient> push_client_;
std::string service_context_;
int64 scheduling_hash_;
// This count is saved for displaying statatistics.
int sent_messages_count_;
DISALLOW_COPY_AND_ASSIGN(PushClientChannel);
};
} // namespace syncer
#endif // SYNC_NOTIFIER_PUSH_CLIENT_CHANNEL_H_
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