Orocos Real-Time Toolkit  2.5.0
Public Types | Public Member Functions | Public Attributes | Protected Types | Protected Attributes
RTT::Marshalling Class Reference

Service requester to load and save properties of a TaskContext. More...

#include <rtt/marsh/Marshalling.hpp>

Inheritance diagram for RTT::Marshalling:
RTT::ServiceRequester

List of all members.

Public Types

typedef std::vector< std::string > RequesterNames
typedef std::vector< std::string > OperationCallerNames

Public Member Functions

 Marshalling (TaskContext *parent)
 This object is normally created by a TaskContext.
const std::string & getRequestName () const
RequesterNames getRequesterNames () const
TaskContextgetServiceOwner () const
 The owner is the top-level TaskContext owning this service (indirectly).
Service::shared_ptr getReferencedService ()
 Returns the service we're referencing.
bool addOperationCaller (base::OperationCallerBaseInvoker &mbi)
OperationCallerNames getOperationCallerNames () const
base::OperationCallerBaseInvokergetOperationCaller (const std::string &name)
ServiceRequesterrequires ()
ServiceRequesterrequires (const std::string &service_name)
bool requiresService (const std::string &service_name)
 Query if this service requires certain sub-services.
bool connectTo (Service::shared_ptr sp)
 Connects this service's methods to the operations provided by op.
bool ready () const
 Returns true when all methods were resolved.
void disconnect ()
 Disconnects all methods from their implementation.

Public Attributes

OperationCaller< bool(const
std::string &filename)> 
loadProperties
 Read a property file and update (or create any missing) properties in the TaskContext.
OperationCaller< bool(const
std::string &filename)> 
storeProperties
 Stores all properties of parent TaskContext in a new file or overwrite an existing one.
OperationCaller< bool(const
std::string &filename)> 
readProperties
 Read the property file and 'refresh' all the properties of the TaskContext.
OperationCaller< bool(const
std::string &filename)> 
updateProperties
 Read the property file and 'refresh' some properties of the TaskContext.
OperationCaller< bool(const
std::string &name, const
std::string &filename)> 
readProperty
 Read a single property from a file.
OperationCaller< bool(const
std::string &filename)> 
writeProperties
 Write the property file with the properties of a TaskContext.
OperationCaller< bool(const
std::string &filename)> 
updateFile
 Write the property file with the properties of a TaskContext, which are already present in filename.
OperationCaller< bool(const
std::string &name, const
std::string &filename)> 
writeProperty
 Write a single property to a file.

Protected Types

typedef std::map< std::string,
ServiceRequester * > 
Requests
typedef std::map< std::string,
base::OperationCallerBaseInvoker * > 
OperationCallers
 Our methods.

Protected Attributes

Requests mrequests
 the services we implement.
OperationCallers mmethods
std::string mrname
TaskContextmrowner
Service::shared_ptr mprovider

Detailed Description

Service requester to load and save properties of a TaskContext.

Definition at line 53 of file Marshalling.hpp.


Member Function Documentation

bool RTT::ServiceRequester::connectTo ( Service::shared_ptr  sp) [inherited]

Connects this service's methods to the operations provided by op.

This method tries to match as many as possible method-operation pairs.

You may call this function with different instances of sp to 'resolve' missing functions, only the non-connected methods will be further filled in.

Parameters:
spAn interface-compatible Service.
Returns:
true if all methods of that are required are provided, false if not all methods could yet be matched.

Definition at line 92 of file ServiceRequester.cpp.

References RTT::base::TaskCore::engine(), and RTT::ServiceRequester::ready().

Referenced by RTT::TaskContext::connectServices().

Service::shared_ptr RTT::ServiceRequester::getReferencedService ( ) [inherited]

Returns the service we're referencing.

In case you used connectTo to more than one service, this returns the service which was used when connectTo first returned true.

bool RTT::ServiceRequester::ready ( ) const [inherited]

Returns true when all methods were resolved.

Returns:

Definition at line 132 of file ServiceRequester.cpp.

Referenced by RTT::TaskContext::connectServices(), and RTT::ServiceRequester::connectTo().

bool RTT::ServiceRequester::requiresService ( const std::string &  service_name) [inline, inherited]

Query if this service requires certain sub-services.

Parameters:
service_name
Returns:

Definition at line 112 of file ServiceRequester.hpp.


Member Data Documentation

OperationCaller<bool (const std::string& filename)> RTT::Marshalling::loadProperties

Read a property file and update (or create any missing) properties in the TaskContext.

This function allows to dynamically add properties to a component. This can be useful in combination with Orocos scripts when the script requires additional properties from the parent TaskContext.

Definition at line 71 of file Marshalling.hpp.

Referenced by Marshalling().

OperationCaller<bool (const std::string& filename)> RTT::Marshalling::readProperties

Read the property file and 'refresh' all the properties of the TaskContext.

There may be more properties in the file than properties in the TaskContext, but all properties of the TaskContext must be present in filename. In case a type mismatch occurs, this method will fail and update no properties.

Parameters:
filenameThe file to read from.
Returns:
true on success, false on error, consult Logger output for messages.

Definition at line 91 of file Marshalling.hpp.

Referenced by Marshalling().

OperationCaller<bool (const std::string& name,const std::string& filename)> RTT::Marshalling::readProperty

Read a single property from a file.

The name may be a 'path' like location of a Property in the hierarchy.

Parameters:
nameThe name of the property in the file. For example "MyProp" for a top-level property or "Settings.XML.Editor" to specify a dot-separated 'path' to the property 'Editor'.
filenameThe name of the file in which to lookup name.

Definition at line 112 of file Marshalling.hpp.

Referenced by Marshalling().

OperationCaller<bool (const std::string& filename)> RTT::Marshalling::storeProperties

Stores all properties of parent TaskContext in a new file or overwrite an existing one.

The file given in filename will always be overwritten and any existing content will be lost.

Parameters:
filenameThe file to store to.
Returns:
true on success, false on error, consult Logger output for messages.
See also:
loadProperties() for loading properties in a TaskContext.

Definition at line 81 of file Marshalling.hpp.

Referenced by Marshalling().

OperationCaller<bool (const std::string& filename)> RTT::Marshalling::updateFile

Write the property file with the properties of a TaskContext, which are already present in filename.

No new entries are created in the file, only existing ones are updated. The file is first read in, the resulting tree is updated with the task's properties, and then written to disk again.

Parameters:
filenameThe file to read from and write to.
Returns:
true on success, false on error, consult Logger output for messages.

Definition at line 133 of file Marshalling.hpp.

Referenced by Marshalling().

OperationCaller<bool (const std::string& filename)> RTT::Marshalling::updateProperties

Read the property file and 'refresh' some properties of the TaskContext.

There may be more properties in the file than properties in the TaskContext, and some may be missing in the file. This method will update 'as much as possible' properties. In case a type mismatch occurs, this method will fail and update no properties.

Parameters:
filenameThe file to read all the properties from.
Returns:
true on success, false on error, consult Logger output for messages.

Definition at line 102 of file Marshalling.hpp.

Referenced by Marshalling().

OperationCaller<bool (const std::string& filename)> RTT::Marshalling::writeProperties

Write the property file with the properties of a TaskContext.

The file is first read in, the resulting tree is updated with the task's properties and then written to disk again. This allows to share files between tasks.

Parameters:
filenameThe file to read from and write to (updating).
Returns:
true on success, false on error, consult Logger output for messages.

Definition at line 122 of file Marshalling.hpp.

Referenced by Marshalling().

OperationCaller<bool (const std::string& name, const std::string& filename)> RTT::Marshalling::writeProperty

Write a single property to a file.

The name may be a 'path' like location of a Property in the hierarchy.

Parameters:
nameThe name of the property in the file. For example "MyProp" for a top-level property or "Settings.XML.Editor" to specify a dot-separated 'path' to the property 'Editor'.
filenameThe name of the file in which to write name.

Definition at line 143 of file Marshalling.hpp.

Referenced by Marshalling().


The documentation for this class was generated from the following files: