Classes | Public Member Functions | Protected Types | Protected Member Functions | Private Types | Private Member Functions | Private Attributes
message_transport::SimplePublisherPlugin< Base, M > Class Template Reference

Base class to simplify implementing most plugins to Publisher. More...

#include <simple_publisher_plugin.h>

Inheritance diagram for message_transport::SimplePublisherPlugin< Base, M >:
Inheritance graph
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List of all members.

Classes

struct  SimplePublisherPluginImpl

Public Member Functions

virtual uint32_t getNumSubscribers () const
 Returns the number of subscribers that are currently connected to this PublisherPlugin.
virtual std::string getTopic () const
 Returns the communication topic that this PublisherPlugin will publish on.
virtual void publish (const Base &message) const
 Publish an image using the transport associated with this PublisherPlugin.
virtual void shutdown ()
 Shutdown any advertisements associated with this PublisherPlugin.
 SimplePublisherPlugin (bool forceLatch=false)
virtual ~SimplePublisherPlugin ()

Protected Types

typedef boost::function< void(const
M &)> 
PublishFn
 Generic function for publishing the internal message type.

Protected Member Functions

virtual void advertiseImpl (ros::NodeHandle &nh, const std::string &base_topic, uint32_t queue_size, const typename SingleSubscriberPublisher< Base >::StatusCB &user_connect_cb, const typename SingleSubscriberPublisher< Base >::StatusCB &user_disconnect_cb, const ros::VoidPtr &tracked_object, bool latch)
 Advertise a topic. Must be implemented by the subclass.
virtual void connectCallback (const ros::SingleSubscriberPublisher &pub)
 Function called when a subscriber connects to the internal publisher.
void connectCallbackHandle (const ros::SingleSubscriberPublisher &pub)
virtual void disconnectCallback (const ros::SingleSubscriberPublisher &pub)
 Function called when a subscriber disconnects from the internal publisher.
void disconnectCallbackHandle (const ros::SingleSubscriberPublisher &pub)
ros::NodeHandlegetNodeHandle ()
const ros::NodeHandlegetParamNode () const
 Returns the ros::NodeHandle to be used for parameter lookup.
virtual std::string getTopicToAdvertise (const std::string &base_topic) const
 Return the communication topic name for a given base topic.
virtual void postAdvertiseInit ()
 Can be overloaded by an implementation to call some.
virtual void publish (const Base &message, const PublishFn &publish_fn) const =0
 Publish an image using the specified publish function. Must be implemented by the subclass.
void publishInternal (const M &message) const

Private Types

typedef boost::function< void(const
Base &)> 
MessagePublishFn
typedef void(SimplePublisherPlugin::* SubscriberStatusMemFn )(const ros::SingleSubscriberPublisher &pub)

Private Member Functions

ros::SubscriberStatusCallback bindCB (const typename SingleSubscriberPublisher< Base >::StatusCB &user_cb, SubscriberStatusMemFn internal_cb_fn)
template<class PubT >
PublishFn bindInternalPublisher (const PubT &pub) const
void subscriberCB (const ros::SingleSubscriberPublisher &ros_ssp, const typename SingleSubscriberPublisher< Base >::StatusCB &user_cb, const ros::SubscriberStatusCallback &internal_cb)

Private Attributes

bool forcelatch_
boost::scoped_ptr
< SimplePublisherPluginImpl
simple_impl_

Detailed Description

template<class Base, class M>
class message_transport::SimplePublisherPlugin< Base, M >

Base class to simplify implementing most plugins to Publisher.

This base class vastly simplifies implementing a PublisherPlugin in the common case that all communication with the matching SubscriberPlugin happens over a single ROS topic using a transport-specific message type. SimplePublisherPlugin is templated on the transport-specific message type.

A subclass need implement only two methods:

For access to the parameter server and name remappings, use nh().

getTopicToAdvertise() controls the name of the internal communication topic. It defaults to <base topic>/<transport name>.

Definition at line 27 of file simple_publisher_plugin.h.


Member Typedef Documentation

template<class Base, class M>
typedef boost::function<void(const Base&)> message_transport::SimplePublisherPlugin< Base, M >::MessagePublishFn [private]

Definition at line 199 of file simple_publisher_plugin.h.

template<class Base, class M>
typedef boost::function<void(const M&)> message_transport::SimplePublisherPlugin< Base, M >::PublishFn [protected]

Generic function for publishing the internal message type.

Definition at line 83 of file simple_publisher_plugin.h.

template<class Base, class M>
typedef void(SimplePublisherPlugin::* message_transport::SimplePublisherPlugin< Base, M >::SubscriberStatusMemFn)(const ros::SingleSubscriberPublisher &pub) [private]

Definition at line 158 of file simple_publisher_plugin.h.


Constructor & Destructor Documentation

template<class Base, class M>
message_transport::SimplePublisherPlugin< Base, M >::SimplePublisherPlugin ( bool  forceLatch = false) [inline]

Definition at line 30 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual message_transport::SimplePublisherPlugin< Base, M >::~SimplePublisherPlugin ( ) [inline, virtual]

Definition at line 31 of file simple_publisher_plugin.h.


Member Function Documentation

template<class Base, class M>
virtual void message_transport::SimplePublisherPlugin< Base, M >::advertiseImpl ( ros::NodeHandle nh,
const std::string &  base_topic,
uint32_t  queue_size,
const typename SingleSubscriberPublisher< Base >::StatusCB &  connect_cb,
const typename SingleSubscriberPublisher< Base >::StatusCB &  disconnect_cb,
const ros::VoidPtr tracked_object,
bool  latch 
) [inline, protected, virtual]

Advertise a topic. Must be implemented by the subclass.

Todo:
This does not work if base_topic is a global name.

Implements message_transport::PublisherPlugin< Base >.

Definition at line 61 of file simple_publisher_plugin.h.

template<class Base, class M>
ros::SubscriberStatusCallback message_transport::SimplePublisherPlugin< Base, M >::bindCB ( const typename SingleSubscriberPublisher< Base >::StatusCB &  user_cb,
SubscriberStatusMemFn  internal_cb_fn 
) [inline, private]

Binds the user callback to subscriberCB(), which acts as an intermediary to expose a publish(Message) interface to the user while publishing to an internal topic.

Definition at line 164 of file simple_publisher_plugin.h.

template<class Base, class M>
template<class PubT >
PublishFn message_transport::SimplePublisherPlugin< Base, M >::bindInternalPublisher ( const PubT &  pub) const [inline, private]

Returns a function object for publishing the transport-specific message type through some ROS publisher type.

Parameters:
pubAn object with method void publish(const M&)

Definition at line 208 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual void message_transport::SimplePublisherPlugin< Base, M >::connectCallback ( const ros::SingleSubscriberPublisher pub) [inline, protected, virtual]

Function called when a subscriber connects to the internal publisher.

Defaults to noop.

Definition at line 114 of file simple_publisher_plugin.h.

template<class Base, class M>
void message_transport::SimplePublisherPlugin< Base, M >::connectCallbackHandle ( const ros::SingleSubscriberPublisher pub) [inline, protected]

Definition at line 115 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual void message_transport::SimplePublisherPlugin< Base, M >::disconnectCallback ( const ros::SingleSubscriberPublisher pub) [inline, protected, virtual]

Function called when a subscriber disconnects from the internal publisher.

Defaults to noop.

Definition at line 124 of file simple_publisher_plugin.h.

template<class Base, class M>
void message_transport::SimplePublisherPlugin< Base, M >::disconnectCallbackHandle ( const ros::SingleSubscriberPublisher pub) [inline, protected]

Definition at line 125 of file simple_publisher_plugin.h.

template<class Base, class M>
ros::NodeHandle& message_transport::SimplePublisherPlugin< Base, M >::getNodeHandle ( ) [inline, protected]

Definition at line 137 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual uint32_t message_transport::SimplePublisherPlugin< Base, M >::getNumSubscribers ( ) const [inline, virtual]

Returns the number of subscribers that are currently connected to this PublisherPlugin.

Implements message_transport::PublisherPluginGen.

Definition at line 33 of file simple_publisher_plugin.h.

template<class Base, class M>
const ros::NodeHandle& message_transport::SimplePublisherPlugin< Base, M >::getParamNode ( ) const [inline, protected]

Returns the ros::NodeHandle to be used for parameter lookup.

Definition at line 132 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual std::string message_transport::SimplePublisherPlugin< Base, M >::getTopic ( ) const [inline, virtual]

Returns the communication topic that this PublisherPlugin will publish on.

Implements message_transport::PublisherPluginGen.

Definition at line 39 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual std::string message_transport::SimplePublisherPlugin< Base, M >::getTopicToAdvertise ( const std::string &  base_topic) const [inline, protected, virtual]

Return the communication topic name for a given base topic.

Defaults to <base topic>/<transport name>.

Reimplemented in message_transport::RawPublisher< M >.

Definition at line 104 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual void message_transport::SimplePublisherPlugin< Base, M >::postAdvertiseInit ( ) [inline, protected, virtual]

Can be overloaded by an implementation to call some.

Definition at line 78 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual void message_transport::SimplePublisherPlugin< Base, M >::publish ( const Base message) const [inline, virtual]

Publish an image using the transport associated with this PublisherPlugin.

Implements message_transport::PublisherPlugin< Base >.

Definition at line 45 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual void message_transport::SimplePublisherPlugin< Base, M >::publish ( const Base message,
const PublishFn publish_fn 
) const [protected, pure virtual]

Publish an image using the specified publish function. Must be implemented by the subclass.

The PublishFn publishes the transport-specific message type. This indirection allows SimpleSubscriberPlugin to use this function for both normal broadcast publishing and single subscriber publishing (in subscription callbacks).

template<class Base, class M>
void message_transport::SimplePublisherPlugin< Base, M >::publishInternal ( const M &  message) const [inline, protected]

Definition at line 95 of file simple_publisher_plugin.h.

template<class Base, class M>
virtual void message_transport::SimplePublisherPlugin< Base, M >::shutdown ( ) [inline, virtual]

Shutdown any advertisements associated with this PublisherPlugin.

Implements message_transport::PublisherPluginGen.

Definition at line 55 of file simple_publisher_plugin.h.

template<class Base, class M>
void message_transport::SimplePublisherPlugin< Base, M >::subscriberCB ( const ros::SingleSubscriberPublisher ros_ssp,
const typename SingleSubscriberPublisher< Base >::StatusCB &  user_cb,
const ros::SubscriberStatusCallback internal_cb 
) [inline, private]

Forms the ros::SingleSubscriberPublisher for the internal communication topic into an message_transport::SingleSubscriberPublisher for Message messages and passes it to the user subscriber status callback.

Definition at line 179 of file simple_publisher_plugin.h.


Member Data Documentation

template<class Base, class M>
bool message_transport::SimplePublisherPlugin< Base, M >::forcelatch_ [private]

Definition at line 156 of file simple_publisher_plugin.h.

template<class Base, class M>
boost::scoped_ptr<SimplePublisherPluginImpl> message_transport::SimplePublisherPlugin< Base, M >::simple_impl_ [private]

Definition at line 155 of file simple_publisher_plugin.h.


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


message_transport_common
Author(s): Cedric Pradalier
autogenerated on Sun Oct 5 2014 23:48:49