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// Copyright (c) 2010 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.
#include "chrome/browser/sync/notifier/server_notifier_thread.h"
#include <string>
#include <vector>
#include "base/logging.h"
#include "chrome/browser/sync/notifier/chrome_invalidation_client.h"
#include "jingle/notifier/base/notifier_options.h"
#include "jingle/notifier/listener/notification_defines.h"
#include "talk/xmpp/xmppclient.h"
namespace sync_notifier {
ServerNotifierThread::ServerNotifierThread(
const notifier::NotifierOptions& notifier_options,
const std::string& state, StateWriter* state_writer)
: notifier::MediatorThreadImpl(notifier_options),
state_(state),
state_writers_(new ObserverListThreadSafe<StateWriter>()),
state_writer_(state_writer) {
DCHECK_EQ(notifier::NOTIFICATION_SERVER,
notifier_options.notification_method);
DCHECK(state_writer_);
state_writers_->AddObserver(state_writer_);
}
ServerNotifierThread::~ServerNotifierThread() {}
void ServerNotifierThread::ListenForUpdates() {
DCHECK_EQ(MessageLoop::current(), parent_message_loop_);
worker_message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ServerNotifierThread::DoListenForUpdates));
}
void ServerNotifierThread::SubscribeForUpdates(
const std::vector<std::string>& subscribed_services_list) {
DCHECK_EQ(MessageLoop::current(), parent_message_loop_);
worker_message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(
this, &ServerNotifierThread::RegisterTypesAndSignalSubscribed));
}
void ServerNotifierThread::Logout() {
DCHECK_EQ(MessageLoop::current(), parent_message_loop_);
state_writers_->RemoveObserver(state_writer_);
state_writer_ = NULL;
worker_message_loop()->PostTask(
FROM_HERE,
NewRunnableMethod(this,
&ServerNotifierThread::StopInvalidationListener));
MediatorThreadImpl::Logout();
}
void ServerNotifierThread::SendNotification(
const OutgoingNotificationData& data) {
DCHECK_EQ(MessageLoop::current(), parent_message_loop_);
NOTREACHED() << "Shouldn't send notifications if ServerNotifierThread is "
"used";
}
void ServerNotifierThread::OnInvalidate(syncable::ModelType model_type) {
DCHECK_EQ(MessageLoop::current(), worker_message_loop());
// TODO(akalin): This is a hack to make new sync data types work
// with server-issued notifications. Remove this when it's not
// needed anymore.
VLOG(1) << "OnInvalidate: " << ((model_type == syncable::UNSPECIFIED) ?
"UNKNOWN" : syncable::ModelTypeToString(model_type));
syncable::ModelTypeBitSet model_types;
model_types[model_type] = true;
IncomingNotificationData notification_data;
notification_data.service_specific_data = model_types.to_string();
observers_->Notify(&Observer::OnIncomingNotification, notification_data);
}
void ServerNotifierThread::OnInvalidateAll() {
DCHECK_EQ(MessageLoop::current(), worker_message_loop());
VLOG(1) << "OnInvalidateAll";
syncable::ModelTypeBitSet model_types;
model_types.set(); // InvalidateAll, so set all datatypes to true.
IncomingNotificationData notification_data;
notification_data.service_specific_data = model_types.to_string();
observers_->Notify(&Observer::OnIncomingNotification, notification_data);
}
void ServerNotifierThread::WriteState(const std::string& state) {
DCHECK_EQ(MessageLoop::current(), worker_message_loop());
VLOG(1) << "WriteState";
state_writers_->Notify(&StateWriter::WriteState, state);
}
void ServerNotifierThread::DoListenForUpdates() {
DCHECK_EQ(MessageLoop::current(), worker_message_loop());
if (!base_task_.get()) {
return;
}
if (chrome_invalidation_client_.get()) {
// If we already have an invalidation client, simply change the
// base task.
chrome_invalidation_client_->ChangeBaseTask(base_task_);
} else {
// Otherwise, create the invalidation client.
chrome_invalidation_client_.reset(new ChromeInvalidationClient());
// TODO(akalin): Make cache_guid() part of the client ID. If we do
// so and we somehow propagate it up to the server somehow, we can
// make it so that we won't receive any notifications that were
// generated from our own changes.
const std::string kClientId = "server_notifier_thread";
chrome_invalidation_client_->Start(
kClientId, state_, this, this, base_task_);
state_.clear();
}
}
void ServerNotifierThread::RegisterTypesAndSignalSubscribed() {
DCHECK_EQ(MessageLoop::current(), worker_message_loop());
if (!chrome_invalidation_client_.get()) {
return;
}
chrome_invalidation_client_->RegisterTypes();
observers_->Notify(&Observer::OnSubscriptionStateChange, true);
}
void ServerNotifierThread::StopInvalidationListener() {
DCHECK_EQ(MessageLoop::current(), worker_message_loop());
chrome_invalidation_client_.reset();
}
} // namespace sync_notifier
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