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// Copyright 2013 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 <stdio.h>
#include "mojo/service_manager/service_manager.h"
#include "base/lazy_instance.h"
#include "base/logging.h"
#include "base/macros.h"
#include "base/stl_util.h"
#include "mojo/public/cpp/bindings/allocation_scope.h"
#include "mojo/public/cpp/bindings/error_handler.h"
#include "mojo/public/cpp/bindings/remote_ptr.h"
#include "mojo/service_manager/service_loader.h"
namespace mojo {
namespace {
// Used by TestAPI.
bool has_created_instance = false;
}
class ServiceManager::ServiceFactory : public Shell, public ErrorHandler {
public:
ServiceFactory(ServiceManager* manager, const GURL& url)
: manager_(manager),
url_(url) {
InterfacePipe<Shell> pipe;
shell_client_.reset(pipe.handle_to_peer.Pass(), this, this);
manager_->GetLoaderForURL(url)->LoadService(manager_,
url,
pipe.handle_to_self.Pass());
}
virtual ~ServiceFactory() {}
void ConnectToClient(ScopedMessagePipeHandle handle) {
if (handle.is_valid()) {
AllocationScope scope;
shell_client_->AcceptConnection(url_.spec(), handle.Pass());
}
}
virtual void Connect(const String& url,
ScopedMessagePipeHandle client_pipe) OVERRIDE {
manager_->Connect(GURL(url.To<std::string>()), client_pipe.Pass());
}
virtual void OnError() OVERRIDE {
manager_->OnServiceFactoryError(this);
}
const GURL& url() const { return url_; }
private:
ServiceManager* const manager_;
const GURL url_;
RemotePtr<ShellClient> shell_client_;
DISALLOW_COPY_AND_ASSIGN(ServiceFactory);
};
class ServiceManager::TestAPI::TestShellConnection
: public Shell,
public ErrorHandler {
public:
explicit TestShellConnection(ServiceManager* manager) : manager_(manager) {
InterfacePipe<Shell> pipe;
shell_client_.reset(pipe.handle_to_peer.Pass(), this, this);
shell_handle_ = pipe.handle_to_self.Pass();
}
virtual ~TestShellConnection() {}
ScopedShellHandle GetShellHandle() {
return shell_handle_.Pass();
}
// Shell:
virtual void Connect(const String& url,
ScopedMessagePipeHandle client_pipe) OVERRIDE {
manager_->Connect(GURL(url.To<std::string>()), client_pipe.Pass());
}
virtual void OnError() OVERRIDE {
}
private:
ServiceManager* manager_;
RemotePtr<ShellClient> shell_client_;
ScopedShellHandle shell_handle_;
DISALLOW_COPY_AND_ASSIGN(TestShellConnection);
};
// static
ServiceManager::TestAPI::TestAPI(ServiceManager* manager) : manager_(manager) {
}
ServiceManager::TestAPI::~TestAPI() {
}
bool ServiceManager::TestAPI::HasCreatedInstance() {
return has_created_instance;
}
ScopedShellHandle ServiceManager::TestAPI::GetShellHandle() {
if (!shell_connection_.get())
shell_connection_.reset(new TestShellConnection(manager_));
return shell_connection_->GetShellHandle().Pass();
}
bool ServiceManager::TestAPI::HasFactoryForURL(const GURL& url) const {
return manager_->url_to_service_factory_.find(url) !=
manager_->url_to_service_factory_.end();
}
ServiceManager::ServiceManager()
: interceptor_(NULL) {
}
ServiceManager::~ServiceManager() {
STLDeleteValues(&url_to_service_factory_);
STLDeleteValues(&url_to_loader_);
STLDeleteValues(&scheme_to_loader_);
}
// static
ServiceManager* ServiceManager::GetInstance() {
static base::LazyInstance<ServiceManager> instance =
LAZY_INSTANCE_INITIALIZER;
has_created_instance = true;
return &instance.Get();
}
void ServiceManager::Connect(const GURL& url,
ScopedMessagePipeHandle client_handle) {
URLToServiceFactoryMap::const_iterator service_it =
url_to_service_factory_.find(url);
ServiceFactory* service_factory;
if (service_it != url_to_service_factory_.end()) {
service_factory = service_it->second;
} else {
service_factory = new ServiceFactory(this, url);
url_to_service_factory_[url] = service_factory;
}
if (interceptor_) {
service_factory->ConnectToClient(
interceptor_->OnConnectToClient(url, client_handle.Pass()));
} else {
service_factory->ConnectToClient(client_handle.Pass());
}
}
void ServiceManager::SetLoaderForURL(scoped_ptr<ServiceLoader> loader,
const GURL& url) {
URLToLoaderMap::iterator it = url_to_loader_.find(url);
if (it != url_to_loader_.end())
delete it->second;
url_to_loader_[url] = loader.release();
}
void ServiceManager::SetLoaderForScheme(scoped_ptr<ServiceLoader> loader,
const std::string& scheme) {
SchemeToLoaderMap::iterator it = scheme_to_loader_.find(scheme);
if (it != scheme_to_loader_.end())
delete it->second;
scheme_to_loader_[scheme] = loader.release();
}
void ServiceManager::SetInterceptor(Interceptor* interceptor) {
interceptor_ = interceptor;
}
ServiceLoader* ServiceManager::GetLoaderForURL(const GURL& url) {
URLToLoaderMap::const_iterator url_it = url_to_loader_.find(url);
if (url_it != url_to_loader_.end())
return url_it->second;
SchemeToLoaderMap::const_iterator scheme_it =
scheme_to_loader_.find(url.scheme());
if (scheme_it != scheme_to_loader_.end())
return scheme_it->second;
DCHECK(default_loader_);
return default_loader_.get();
}
void ServiceManager::OnServiceFactoryError(ServiceFactory* service_factory) {
const GURL url = service_factory->url();
URLToServiceFactoryMap::iterator it = url_to_service_factory_.find(url);
DCHECK(it != url_to_service_factory_.end());
delete it->second;
url_to_service_factory_.erase(it);
GetLoaderForURL(url)->OnServiceError(this, url);
}
} // namespace mojo
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