[DevTools] Prepare inspector_protocol build to move.

third_party/WebKit/Source/platform/inspector_protocol/DispatcherBase_cpp.template

-// 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.
-
-//#include "DispatcherBase.h"
-//#include "Parser.h"
-
-{% for namespace in config.protocol.namespace %}
-namespace {{namespace}} {
-{% endfor %}
-
-// static
-const char DispatcherBase::kInvalidRequest[] = "Invalid request";
-
-DispatcherBase::WeakPtr::WeakPtr(DispatcherBase* dispatcher) : m_dispatcher(dispatcher) { }
-
-DispatcherBase::WeakPtr::~WeakPtr()
-{
-    if (m_dispatcher)
-        m_dispatcher->m_weakPtrs.erase(this);
-}
-
-DispatcherBase::Callback::Callback(std::unique_ptr<DispatcherBase::WeakPtr> backendImpl, int callId)
-    : m_backendImpl(std::move(backendImpl))
-    , m_callId(callId) { }
-
-DispatcherBase::Callback::~Callback() = default;
-
-void DispatcherBase::Callback::dispose()
-{
-    m_backendImpl = nullptr;
-}
-
-void DispatcherBase::Callback::sendIfActive(std::unique_ptr<protocol::DictionaryValue> partialMessage, const ErrorString& invocationError)
-{
-    if (!m_backendImpl || !m_backendImpl->get())
-        return;
-    m_backendImpl->get()->sendResponse(m_callId, invocationError, nullptr, std::move(partialMessage));
-    m_backendImpl = nullptr;
-}
-
-DispatcherBase::DispatcherBase(FrontendChannel* frontendChannel)
-    : m_frontendChannel(frontendChannel) { }
-
-DispatcherBase::~DispatcherBase()
-{
-    clearFrontend();
-}
-
-// static
-bool DispatcherBase::getCommandName(const String& message, String* result)
-{
-    std::unique_ptr<protocol::Value> value = parseJSON(message);
-    if (!value)
-        return false;
-
-    protocol::DictionaryValue* object = DictionaryValue::cast(value.get());
-    if (!object)
-        return false;
-
-    if (!object->getString("method", result))
-        return false;
-
-    return true;
-}
-
-void DispatcherBase::sendResponse(int callId, const ErrorString& invocationError, ErrorSupport* errors, std::unique_ptr<protocol::DictionaryValue> result)
-{
-    if (invocationError.length() || (errors && errors->hasErrors())) {
-        reportProtocolError(callId, ServerError, invocationError, errors);
-        return;
-    }
-
-    std::unique_ptr<protocol::DictionaryValue> responseMessage = DictionaryValue::create();
-    responseMessage->setInteger("id", callId);
-    responseMessage->setObject("result", std::move(result));
-    if (m_frontendChannel)
-        m_frontendChannel->sendProtocolResponse(callId, responseMessage->toJSONString());
-}
-
-void DispatcherBase::sendResponse(int callId, const ErrorString& invocationError, std::unique_ptr<protocol::DictionaryValue> result)
-{
-    sendResponse(callId, invocationError, nullptr, std::move(result));
-}
-
-void DispatcherBase::sendResponse(int callId, const ErrorString& invocationError)
-{
-    sendResponse(callId, invocationError, nullptr, DictionaryValue::create());
-}
-
-static void reportProtocolErrorTo(FrontendChannel* frontendChannel, int callId, DispatcherBase::CommonErrorCode code, const String& errorMessage, ErrorSupport* errors)
-{
-    std::unique_ptr<protocol::DictionaryValue> error = DictionaryValue::create();
-    error->setInteger("code", code);
-    error->setString("message", errorMessage);
-    DCHECK(error);
-    if (errors && errors->hasErrors())
-        error->setString("data", errors->errors());
-    std::unique_ptr<protocol::DictionaryValue> message = DictionaryValue::create();
-    message->setObject("error", std::move(error));
-    message->setInteger("id", callId);
-    frontendChannel->sendProtocolResponse(callId, message->toJSONString());
-}
-
-void DispatcherBase::reportProtocolError(int callId, CommonErrorCode code, const String& errorMessage, ErrorSupport* errors)
-{
-    if (m_frontendChannel)
-        reportProtocolErrorTo(m_frontendChannel, callId, code, errorMessage, errors);
-}
-
-void DispatcherBase::clearFrontend()
-{
-    m_frontendChannel = nullptr;
-    for (auto& weak : m_weakPtrs)
-        weak->dispose();
-    m_weakPtrs.clear();
-}
-
-std::unique_ptr<DispatcherBase::WeakPtr> DispatcherBase::weakPtr()
-{
-    std::unique_ptr<DispatcherBase::WeakPtr> weak(new DispatcherBase::WeakPtr(this));
-    m_weakPtrs.insert(weak.get());
-    return weak;
-}
-
-UberDispatcher::UberDispatcher(FrontendChannel* frontendChannel)
-    : m_frontendChannel(frontendChannel) { }
-
-void UberDispatcher::registerBackend(const String& name, std::unique_ptr<protocol::DispatcherBase> dispatcher)
-{
-    m_dispatchers[name] = std::move(dispatcher);
-}
-
-void UberDispatcher::dispatch(std::unique_ptr<Value> parsedMessage)
-{
-    if (!parsedMessage)
-        return;
-    std::unique_ptr<protocol::DictionaryValue> messageObject = DictionaryValue::cast(std::move(parsedMessage));
-    if (!messageObject)
-        return;
-
-    int callId = 0;
-    protocol::Value* callIdValue = messageObject->get("id");
-    bool success = callIdValue->asInteger(&callId);
-    if (!success)
-        return;
-
-    protocol::Value* methodValue = messageObject->get("method");
-    String method;
-    success = methodValue && methodValue->asString(&method);
-    if (!success)
-        return;
-
-    size_t dotIndex = method.find(".");
-    if (dotIndex == StringUtil::kNotFound) {
-        reportProtocolErrorTo(m_frontendChannel, callId, DispatcherBase::MethodNotFound, "'" + method + "' wasn't found", nullptr);
-        return;
-    }
-    String domain = StringUtil::substring(method, 0, dotIndex);
-    auto it = m_dispatchers.find(domain);
-    if (it == m_dispatchers.end()) {
-        reportProtocolErrorTo(m_frontendChannel, callId, DispatcherBase::MethodNotFound, "'" + method + "' wasn't found", nullptr);
-        return;
-    }
-    it->second->dispatch(callId, method, std::move(messageObject));
-}
-
-UberDispatcher::~UberDispatcher() = default;
-
-{% for namespace in config.protocol.namespace %}
-} // namespace {{namespace}}
-{% endfor %}