Interface of a DSC component. More...

Inheritance diagram for Engines::DSC:

Data Structures
exception	BadPortReference
	Port's reference is not the right reference. More...

exception	BadPortType
	This exception is raised if the type of the provides port is bad. More...

exception	BadProperty
	Object property is not good for the port. More...

exception	NilPort
	Port's reference is Nil ! More...

exception	PortAlreadyDefined
	This exception is raised if you try to add a port with the same name than a previous defined port. More...

exception	PortNotConnected
	This exception is raised when you try to use a port that is not connected. More...

exception	PortNotDefined
	This exception is raised when a port is used before it is added to the component. More...

Public Types
enum	Message { AddingConnection, RemovingConnection, ApplicationError }
	This enumeration is used when the connection of a port (uses or provides) is changed. More...

typedef sequence< Ports::Port >	uses_port
	a uses port More...

Public Member Functions
void	add_provides_port (in Ports::Port ref, in string provides_port_name, in Ports::PortProperties port_prop) raises (PortAlreadyDefined, NilPort, BadProperty)
	This operation adds a provides port to the component. More...

void	add_uses_port (in string repository_id, in string uses_port_name, in Ports::PortProperties port_prop) raises (PortAlreadyDefined, BadProperty)
	This operation adds a uses port to the component. More...

Ports::Port	get_provides_port (in string provides_port_name, in boolean connection_error) raises (PortNotDefined, PortNotConnected, BadPortType)
	Get a provides port of the component. More...

uses_port	get_uses_port (in string uses_port_name) raises (PortNotDefined, PortNotConnected, BadPortType)
	Get a uses port of the component. More...

void	connect_provides_port (in string provides_port_name) raises (PortNotDefined)
	Connect a provides port with a uses port. More...

void	connect_uses_port (in string uses_port_name, in Ports::Port provides_port_ref) raises (PortNotDefined, BadPortType, NilPort)
	Connect a uses port with a provides port. More...

boolean	is_connected (in string port_name) raises (PortNotDefined)
	Check if a port is connected. More...

void	disconnect_provides_port (in string provides_port_name, in Engines::DSC::Message message) raises (PortNotDefined, PortNotConnected)
	Disconnect a uses port from a provides port. More...

void	disconnect_uses_port (in string uses_port_name, in Ports::Port provides_port_ref, in Engines::DSC::Message message) raises (PortNotDefined, PortNotConnected, BadPortReference)
	Disconnect a provides port from a uses port. More...

Ports::PortProperties	get_port_properties (in string port_name) raises (PortNotDefined)
	Get port's property object. More...

void	ping ()
	Determines whether the server has already been loaded or not. More...

long	getStudyId ()
	Get study associated to component instance. More...

void	destroy ()
	Remove component instance from container. More...

Container	GetContainerRef ()
	Returns the container that the Component refers to. More...

void	setProperties (in FieldsDict dico)
	Set component instance properties. More...

FieldsDict	getProperties ()
	Get component instance properties. More...

void	SetOption (in string optionName, in string value)
	Set an option value. More...

string	GetOption (in string optionName)
	Return an option value. More...

void	Names (in string aGraphName, in string aNodeName)
	Set name of a node in a graph (for SUPERVISOR use) More...

boolean	Kill_impl ()
	Kill the component (if you can) More...

boolean	Stop_impl ()
	Stop the component (if you can) More...

boolean	Suspend_impl ()
	Suspend the component. More...

boolean	Resume_impl ()
	Resume the component. More...

long	CpuUsed_impl ()
	Get the cpu used. More...

TMPFile	DumpPython (in Object theStudy, in boolean isPublished, in boolean isMultiFile, out boolean isValidScript)
	Get a python dump. More...

Engines::Salome_file	getInputFileToService (in string service_name, in string Salome_file_name) raises (SALOME::SALOME_Exception)
	Returns a CORBA Ref of a input Salome_file managed by a service. More...

void	checkInputFilesToService (in string service_name) raises (SALOME::SALOME_Exception)
	Check service input files (transfer them if needed) More...

Engines::Salome_file	setInputFileToService (in string service_name, in string Salome_file_name) raises (SALOME::SALOME_Exception)
	This method adds a input Salome_file to a service of the component. More...

Engines::Salome_file	getOutputFileToService (in string service_name, in string Salome_file_name) raises (SALOME::SALOME_Exception)
	Returns a CORBA Ref of a output Salome_file managed by a service. More...

void	checkOutputFilesToService (in string service_name) raises (SALOME::SALOME_Exception)
	Check service output files (transfer them if needed) More...

Engines::Salome_file	setOutputFileToService (in string service_name, in string Salome_file_name) raises (SALOME::SALOME_Exception)
	This method adds an output Salome_file to a service of the component. More...

boolean	hasObjectInfo ()
	Indicate if the component instance provides custom information about its objects. More...

string	getObjectInfo (in long studyId, in string entry)
	Get custom information about the given object. More...

string	getVersion ()
	Get version of the component. More...

Data Fields
readonly attribute string	instanceName
	The name of the instance of the Component. More...

readonly attribute string	interfaceName
	The name of the interface of the Component. More...

Detailed Description

Interface of a DSC component.

This interface defines the operations needed to add a component model with dynamic port declaration to the SALOME object model. A component is a black box that interacts with other components only by his ports. A port represents a connection point for the component. In this model, a port is a CORBA interface, so a CORBA object.

There is two ways for a component to interact with a port type :

It implements the port : it means "the component provides an implementation of the interface of the port". We design this kind of port as "provides ports". It provides an interface to other components.
It needs to use an object that provides the port interface. We say that the component uses this port type. It is represented by a "uses" port. A uses port can be connected with a provides port of the same interface type. When the connection is done, a component can use the "uses port" to use the interface provided by the "provides port".

The interface DSC implements the component interface that containes the operations that are needed to manage declarations into a component and connections between ports.

These operations are logicaly divided in two parts :

First part permits to add an get ports of a component.
Second part permits to connect/disconnect ports.

Member Typedef Documentation

typedef sequence<Ports::Port> Engines::DSC::uses_port

a uses port

This sequence is a uses port. It's a sequence since a uses port can be connected with x provides port. Sometimes this kind of uses port is called multiple port. At this programming level, the user has to deal with the sequence. In the DSC_user layer, the user only deals with one pointer.

Member Enumeration Documentation

enum Engines::DSC::Message

This enumeration is used when the connection of a port (uses or provides) is changed.

This information is for the component's user code.

Member Function Documentation

void Engines::DSC::add_provides_port	(	in Ports::Port	ref,
		in string	provides_port_name,
		in Ports::PortProperties	port_prop
	)		raises (PortAlreadyDefined, NilPort, BadProperty)

This operation adds a provides port to the component.

Parameters

ref	port's Corba reference.
provides_port_name	port's name.
port_prop	port's property object.

Exceptions

PortAlreadyDefined
NilPort
BadProperty

Note: Notice that the name of the port is unique on a component. So if there is a uses port that has the same name, the PortAlreadyDefined exception will be throw. Also notice that each port as an object property that is associated with.

void Engines::DSC::add_uses_port	(	in string	repository_id,
		in string	uses_port_name,
		in Ports::PortProperties	port_prop
	)		raises (PortAlreadyDefined, BadProperty)

This operation adds a uses port to the component.

Parameters

repository_id	port's Corba repository id. Eg : IDL:toto.tata/MODULE/INTERFACE_NAME:1.0
uses_port_name	port's name.
port_prop	port's property object.

Exceptions

PortAlreadyDefined
BadProperty

Note: Notice that the name of the port is unique on the component. So if there is a provides port that has the same name, the PortAlreadyDefined exception will be throw. Also notice that each port as an object property that is associated with.

Ports::Port Engines::DSC::get_provides_port	(	in string	provides_port_name,
		in boolean	connection_error
	)		raises (PortNotDefined, PortNotConnected, BadPortType)

Get a provides port of the component.

It can be used by the framework or the component himself.

If it's the framework that wants the port, the reference has to be gived even if the port is not connected (boolean connection_error to false). Contrary, if it's the component that wants the port, the port is given in most of cases only if it is connected (boolean connection_error to true). Notice that you can choose the behaviour that you want.

Parameters

provides_port_name	port's name.
connection_error	true if you want to wait that the port is connected with an another port.

Returns: port's Corba reference.

Exceptions

PortNotDefined
PortNotConnected
BadPortType

uses_port Engines::DSC::get_uses_port ( in string uses_port_name ) raises (PortNotDefined, PortNotConnected, BadPortType)

Get a uses port of the component.

It can be used by the framework or the component himself. Actually, only the user layer of the component will use this operation. A uses port could be obtained if and only if the uses port is connected. The sequence contains all the connections since a uses port can have multiple connections.

There is a system of callbacks to prevent the user code that there is a new (or a deletion) of a connection (see DSC_Callbacks class).

Parameters

uses_port_name port's name.

Returns: uses port's sequence.

Exceptions

PortNotDefined
PortNotConnected
BadPortType

See Also: DSC_Callbacks

void Engines::DSC::connect_provides_port ( in string provides_port_name ) raises (PortNotDefined)

Connect a provides port with a uses port.

Parameters

provides_port_name provides port's name.

Exceptions

PortNotDefined

Note: Notice that the provides doesn't uses port names or component reference.

void Engines::DSC::connect_uses_port	(	in string	uses_port_name,
		in Ports::Port	provides_port_ref
	)		raises (PortNotDefined, BadPortType, NilPort)

Connect a uses port with a provides port.

Parameters

uses_port_name	uses port's name.
provides_port_ref	provides port's Corba reference.

Exceptions

PortNotDefined
BadPortType
NilPort

boolean Engines::DSC::is_connected ( in string port_name ) raises (PortNotDefined)

Check if a port is connected.

You can test a uses port or a provides port.

Parameters

port_name port's name.

Returns: true if the uses port is connected.

Exceptions

PortNotDefined

void Engines::DSC::disconnect_provides_port	(	in string	provides_port_name,
		in Engines::DSC::Message	message
	)		raises (PortNotDefined, PortNotConnected)

Disconnect a uses port from a provides port.

Parameters

provides_port_name	provides port's name.
message	state associated with the disconnection.

Exceptions

PortNotDefined
PortNotConnected

void Engines::DSC::disconnect_uses_port	(	in string	uses_port_name,
		in Ports::Port	provides_port_ref,
		in Engines::DSC::Message	message
	)		raises (PortNotDefined, PortNotConnected, BadPortReference)

Disconnect a provides port from a uses port.

Parameters

uses_port_name	uses port's name.
provides_port_ref	CORBA reference of the provides port.
message	state associated with the disconnection.

Exceptions

PortNotDefined
PortNotConnected
BadPortReference

Ports::PortProperties Engines::DSC::get_port_properties ( in string port_name ) raises (PortNotDefined)

Get port's property object.

Parameters

port_name port's name.

Returns: properties object's CORBA reference.

Exceptions

PortNotDefined

void Engines::EngineComponent::ping ( )

inherited

Determines whether the server has already been loaded or not.

long Engines::EngineComponent::getStudyId ( )

inherited

Get study associated to component instance.

get study associated to component instance

Returns: -1: not initialised (Internal Error) 0: multistudy component instance >0: study id associated to this instance

void Engines::EngineComponent::destroy ( )

inherited

Remove component instance from container.

Deactivates the Component. – TO BE USED BY CONTAINER ONLY (Container housekeeping) – use remove_impl from Container instead !

Container Engines::EngineComponent::GetContainerRef ( )

inherited

Returns the container that the Component refers to.

void Engines::EngineComponent::setProperties ( in FieldsDict dico )

inherited

Set component instance properties.

Gives a sequence of (key=string,value=any) to the component. Base class component stores the sequence in a map. The map is cleared before. This map is for use by derived classes.

FieldsDict Engines::EngineComponent::getProperties ( )

inherited

Get component instance properties.

returns a previously stored map (key=string,value=any) as a sequence. See setProperties(in FieldsDict dico).

void Engines::EngineComponent::SetOption	(	in string	optionName,
		in string	value
	)

inherited

Set an option value.

This method is to set an option specific to a certain EngineComponent.

string Engines::EngineComponent::GetOption ( in string optionName )

inherited

Return an option value.

This method is to get value of an option specific to a certain EngineComponent.

void Engines::EngineComponent::Names	(	in string	aGraphName,
		in string	aNodeName
	)

inherited

Set name of a node in a graph (for SUPERVISOR use)

This method is used by the SUPERVISOR component. It sets the names of the graph and of the node.

Parameters

aGraphName	Name of graph
aNodeName	Name of node

boolean Engines::EngineComponent::Kill_impl ( )

inherited

Kill the component (if you can)

Returns True if the Component has been killed.

boolean Engines::EngineComponent::Stop_impl ( )

inherited

Stop the component (if you can)

Returns True if the activity of the Component has been stopped. (It's action can't be resumed)

boolean Engines::EngineComponent::Suspend_impl ( )

inherited

Suspend the component.

Returns True if the activity of the Component has been suspended. (It's action can be resumed)

boolean Engines::EngineComponent::Resume_impl ( )

inherited

Resume the component.

Returns True if the activity of the Component has been resumed.

long Engines::EngineComponent::CpuUsed_impl ( )

inherited

Get the cpu used.

Returns the Cpu used

TMPFile Engines::EngineComponent::DumpPython	(	in Object	theStudy,
		in boolean	isPublished,
		in boolean	isMultiFile,
		out boolean	isValidScript
	)

inherited

Get a python dump.

Returns a python script, which is being played back reproduces the data model of component

Engines::Salome_file Engines::EngineComponent::getInputFileToService	(	in string	service_name,
		in string	Salome_file_name
	)		raises (SALOME::SALOME_Exception)

inherited

Returns a CORBA Ref of a input Salome_file managed by a service.

Parameters

service_name	service's name.
file_name	name of the requested file.

Returns: CORBA Ref of the requested file.

Exceptions

contains informations of what if the component cannot sends the file's reference.

void Engines::EngineComponent::checkInputFilesToService ( in string service_name ) raises (SALOME::SALOME_Exception)

inherited

Check service input files (transfer them if needed)

This method is used before the activation of the service. It calls recvFiles() on all the input Salome_file files of the service.

Before each recvFiles(), it uses the callback method named configureSalome_file. This method allows the user to configure the files managed by the Salome_file.

By default, there is no files managed when a Salome_file is created, but the supervisor set some files managed by the Salome_file from the information contained into the schema file.

Parameters

service_name service's name.

Exceptions

contains informations about files that are not in a good state.

Engines::Salome_file Engines::EngineComponent::setInputFileToService	(	in string	service_name,
		in string	Salome_file_name
	)		raises (SALOME::SALOME_Exception)

inherited

This method adds a input Salome_file to a service of the component.

Parameters

service_name	service's name.
Salome_file_name	name of the Salome_file

Returns: a reference of the Salome_file

Exceptions

raises an exception if there is already a Salome_file with this name for the service.

Engines::Salome_file Engines::EngineComponent::getOutputFileToService	(	in string	service_name,
		in string	Salome_file_name
	)		raises (SALOME::SALOME_Exception)

inherited

Returns a CORBA Ref of a output Salome_file managed by a service.

Parameters

service_name	service's name.
file_name	name of the requested file.

Returns: CORBA Ref of the requested file.

Exceptions

contains informations of what if the component cannot sends the file's reference.

void Engines::EngineComponent::checkOutputFilesToService ( in string service_name ) raises (SALOME::SALOME_Exception)

inherited

Check service output files (transfer them if needed)

This method is used at the end of the service. It calls recvFiles() on all the output Salome_file files of the service.

Before each recvFiles(), it uses the callback method named configureSalome_file. This method allows the user to configure the files managed by the Salome_file.

By default, there is no files managed when a Salome_file is created, but the supervisor set some files managed by the Salome_file from the information contained into the schema file.

Parameters

service_name service's name.

Exceptions

contains informations about files that are not in a good state.

Engines::Salome_file Engines::EngineComponent::setOutputFileToService	(	in string	service_name,
		in string	Salome_file_name
	)		raises (SALOME::SALOME_Exception)

inherited

This method adds an output Salome_file to a service of the component.

Parameters

service_name	service's name.
Salome_file_name	name of the Salome_file

Returns: a reference of the Salome_file

Exceptions

raises an exception if there is already a Salome_file with this name for the service.

boolean Engines::EngineComponent::hasObjectInfo ( )

inherited

Indicate if the component instance provides custom information about its objects.

Returns true if the component provides custom information about its objects, false otherwise. Should be redefined in the certain component to return true in case of this component provides such information.

string Engines::EngineComponent::getObjectInfo	(	in long	studyId,
		in string	entry
	)

inherited

Get custom information about the given object.

This method is used to get the custom information about the given object. Should be redefined in the certain component in case of this component provides such information. It is worth using this method only if hasObjectInfo() method returns true.

Parameters

entry	object's entry.
studyId	study id

Returns: an information about the given object.

string Engines::EngineComponent::getVersion ( )

inherited

Get version of the component.

This method is supposed to be implemented in all derived classes; default implementation returns "unknown" string that means that no version information about the component is available.

Note: The version of the component is stored to the study, as a part of general persistence mechanism; once stored, version information in the study cannot be changed.

Returns: string containing component's version, e.g. "1.0"

Field Documentation

readonly attribute string Engines::EngineComponent::instanceName

inherited

The name of the instance of the Component.

readonly attribute string Engines::EngineComponent::interfaceName

inherited

The name of the interface of the Component.

Data Structures

Public Types

Public Member Functions

Data Fields

Detailed Description

Member Typedef Documentation

Member Enumeration Documentation

Member Function Documentation

Field Documentation