blob: 9838637c59340ed91dbcc0aad51b7697cf5373bf [file] [log] [blame]
// Copyright 2016 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 {{"_".join(config.protocol.namespace)}}_DispatcherBase_h
#define {{"_".join(config.protocol.namespace)}}_DispatcherBase_h
//#include "Collections.h"
//#include "ErrorSupport.h"
//#include "Forward.h"
//#include "Values.h"
{% for namespace in config.protocol.namespace %}
namespace {{namespace}} {
{% endfor %}
class WeakPtr;
class {{config.lib.export_macro}} DispatchResponse {
public:
enum Status {
kSuccess = 0,
kError = 1,
kFallThrough = 2,
kAsync = 3
};
enum ErrorCode {
kParseError = -32700,
kInvalidRequest = -32600,
kMethodNotFound = -32601,
kInvalidParams = -32602,
kInternalError = -32603,
kServerError = -32000,
};
Status status() const { return m_status; }
const String& errorMessage() const { return m_errorMessage; }
ErrorCode errorCode() const { return m_errorCode; }
bool isSuccess() const { return m_status == kSuccess; }
static DispatchResponse OK();
static DispatchResponse Error(const String&);
static DispatchResponse InternalError();
static DispatchResponse InvalidParams(const String&);
static DispatchResponse FallThrough();
private:
Status m_status;
String m_errorMessage;
ErrorCode m_errorCode;
};
class {{config.lib.export_macro}} DispatcherBase {
PROTOCOL_DISALLOW_COPY(DispatcherBase);
public:
static const char kInvalidParamsString[];
class {{config.lib.export_macro}} WeakPtr {
public:
explicit WeakPtr(DispatcherBase*);
~WeakPtr();
DispatcherBase* get() { return m_dispatcher; }
void dispose() { m_dispatcher = nullptr; }
private:
DispatcherBase* m_dispatcher;
};
class {{config.lib.export_macro}} Callback {
public:
Callback(std::unique_ptr<WeakPtr> backendImpl, int callId, int callbackId);
virtual ~Callback();
void dispose();
protected:
void sendIfActive(std::unique_ptr<protocol::DictionaryValue> partialMessage, const DispatchResponse& response);
void fallThroughIfActive();
private:
std::unique_ptr<WeakPtr> m_backendImpl;
int m_callId;
int m_callbackId;
};
explicit DispatcherBase(FrontendChannel*);
virtual ~DispatcherBase();
static bool getCommandName(const String& message, String* result);
virtual DispatchResponse::Status dispatch(int callId, const String& method, std::unique_ptr<protocol::DictionaryValue> messageObject) = 0;
void sendResponse(int callId, const DispatchResponse&, std::unique_ptr<protocol::DictionaryValue> result);
void sendResponse(int callId, const DispatchResponse&);
void reportProtocolError(int callId, DispatchResponse::ErrorCode, const String& errorMessage, ErrorSupport* errors);
void clearFrontend();
std::unique_ptr<WeakPtr> weakPtr();
int nextCallbackId();
void markFallThrough(int callbackId);
bool lastCallbackFallThrough() { return m_lastCallbackFallThrough; }
private:
FrontendChannel* m_frontendChannel;
protocol::HashSet<WeakPtr*> m_weakPtrs;
int m_lastCallbackId;
bool m_lastCallbackFallThrough;
};
class {{config.lib.export_macro}} UberDispatcher {
PROTOCOL_DISALLOW_COPY(UberDispatcher);
public:
explicit UberDispatcher(FrontendChannel*);
void registerBackend(const String& name, std::unique_ptr<protocol::DispatcherBase>);
DispatchResponse::Status dispatch(std::unique_ptr<Value> message);
FrontendChannel* channel() { return m_frontendChannel; }
bool fallThroughForNotFound() { return m_fallThroughForNotFound; }
void setFallThroughForNotFound(bool);
virtual ~UberDispatcher();
private:
FrontendChannel* m_frontendChannel;
bool m_fallThroughForNotFound;
protocol::HashMap<String, std::unique_ptr<protocol::DispatcherBase>> m_dispatchers;
};
{% for namespace in config.protocol.namespace %}
} // namespace {{namespace}}
{% endfor %}
#endif // !defined({{"_".join(config.protocol.namespace)}}_DispatcherBase_h)