cutelyst 5.0.1
A C++ Web Framework built on top of Qt, using the simple approach of Catalyst (Perl) framework.
Cutelyst::Dispatcher Class Reference

The Cutelyst Dispatcher. More...

#include <Cutelyst/Dispatcher>

Inheritance diagram for Cutelyst::Dispatcher:

Public Member Functions

 Dispatcher (QObject *parent=nullptr)
 
 ~Dispatcher ()
 
Controllercontroller (QStringView name) const
 
QList< Controller * > controllers () const
 
QVector< DispatchType * > dispatchers () const
 
ActionexpandAction (const Context *c, Action *action) const
 
ActiongetAction (QStringView name, QStringView nameSpace={}) const
 
ActiongetActionByPath (QStringView path) const
 
ActionList getActions (QStringView name, QStringView nameSpace) const
 
QString uriForAction (Action *action, const QStringList &captures) const
 

Protected Member Functions

bool dispatch (Context *c)
 
bool forward (Context *c, Component *component)
 
bool forward (Context *c, QStringView opname)
 
void prepareAction (Context *c)
 
void setupActions (const QVector< Controller * > &controllers, const QVector< DispatchType * > &dispatchers, bool printActions)
 

Friends

class Application
 
class Context
 
class Controller
 

Detailed Description

This class is resposible for finding an Action for new requests and invoking it.

Definition at line 28 of file dispatcher.h.

Constructor & Destructor Documentation

◆ Dispatcher()

Dispatcher::Dispatcher ( QObject * parent = nullptr)
explicit

Constructs a new Dispatcher object with the given parent.

Definition at line 24 of file dispatcher.cpp.

Referenced by controller(), controllers(), dispatchers(), expandAction(), forward(), getAction(), getActionByPath(), getActions(), prepareAction(), setupActions(), and uriForAction().

◆ ~Dispatcher()

Dispatcher::~Dispatcher ( )

Destroys the Dispatcher object.

Definition at line 32 of file dispatcher.cpp.

Member Function Documentation

◆ controller()

Controller * Dispatcher::controller ( QStringView name) const
nodiscard

Returns a Controller given it's name.

Definition at line 269 of file dispatcher.cpp.

References Dispatcher().

◆ controllers()

QList< Controller * > Dispatcher::controllers ( ) const
nodiscard

Returns a list of registered controllers.

Definition at line 275 of file dispatcher.cpp.

References Dispatcher().

Referenced by setupActions().

◆ dispatch()

bool Dispatcher::dispatch ( Context * c)
protected

Delegate the dispatch to the action that matched the url, or return a message about unknown resource.

Definition at line 125 of file dispatcher.cpp.

References Cutelyst::Controller::_DISPATCH(), Cutelyst::Context::action, Cutelyst::Context::appendError(), Cutelyst::Action::controller(), Cutelyst::Context::qtTrId(), and Cutelyst::Context::req.

◆ dispatchers()

QVector< DispatchType * > Dispatcher::dispatchers ( ) const
nodiscard

Returns a list of all dispatchers currently in use, if the dispatcher doesn't successfuly register an Action it's removed from the list.

Definition at line 318 of file dispatcher.cpp.

References Dispatcher().

Referenced by setupActions().

◆ expandAction()

Action * Dispatcher::expandAction ( const Context * c,
Action * action ) const
nodiscard

Expand an action into a full representation of the dispatch. Mostly useful for chained where the returned Action will be of ActionChain type, other actions will just return a single action.

Definition at line 306 of file dispatcher.cpp.

References Dispatcher(), and Cutelyst::DispatchType::expandAction().

◆ forward() [1/2]

bool Dispatcher::forward ( Context * c,
Component * component )
protected

Used by Application to forward execution to the following Component.

Definition at line 143 of file dispatcher.cpp.

References Cutelyst::Context::execute().

◆ forward() [2/2]

bool Dispatcher::forward ( Context * c,
QStringView opname )
protected

Used by Application to forward execution to opname that is resolved to an Action.

Definition at line 151 of file dispatcher.cpp.

References Dispatcher(), Cutelyst::Action::dispatch(), and Cutelyst::Context::request.

◆ getAction()

Action * Dispatcher::getAction ( QStringView name,
QStringView nameSpace = {} ) const
nodiscard

Returns an action by name from a given nameSpace.

Definition at line 219 of file dispatcher.cpp.

References Dispatcher(), and getActionByPath().

◆ getActionByPath()

Action * Dispatcher::getActionByPath ( QStringView path) const
nodiscard

Returns an action by its full private path.

Definition at line 235 of file dispatcher.cpp.

References Dispatcher().

Referenced by Cutelyst::RoleACL::dispatcherReady(), and getAction().

◆ getActions()

ActionList Dispatcher::getActions ( QStringView name,
QStringView nameSpace ) const
nodiscard

Returns a list of actions that match name on the desired namespace nameSpace.

Definition at line 248 of file dispatcher.cpp.

References Dispatcher().

◆ prepareAction()

void Dispatcher::prepareAction ( Context * c)
protected

Used by Application to find a matching action for the current Context c.

Definition at line 164 of file dispatcher.cpp.

References Dispatcher(), and Cutelyst::Context::request.

◆ setupActions()

void Dispatcher::setupActions ( const QVector< Controller * > & controllers,
const QVector< DispatchType * > & dispatchers,
bool printActions )
protected

Used by Application to register all Controllers Actions into the list of DispatchType.

Definition at line 37 of file dispatcher.cpp.

References Dispatcher(), controllers(), and dispatchers().

◆ uriForAction()

QString Dispatcher::uriForAction ( Action * action,
const QStringList & captures ) const
nodiscard

Takes a Catalyst::Action object and action parameters and returns a URI part such that if $c->req->path were this URI part, this action would be dispatched to with $c->req->captures set to the supplied arrayref.

If the action object is not available for external dispatch or the dispatcher cannot determine an appropriate URI, this method will return a null byte array.

Definition at line 285 of file dispatcher.cpp.

References Dispatcher(), and Cutelyst::DispatchType::uriForAction().

Friends And Related Symbol Documentation

◆ Application

friend class Application
friend

Definition at line 121 of file dispatcher.h.

◆ Context

friend class Context
friend

Definition at line 122 of file dispatcher.h.

◆ Controller

friend class Controller
friend

Definition at line 123 of file dispatcher.h.