#include <HTTPConvergenceLayer.h>

Inheritance diagram for dtn::net::HTTPConvergenceLayer:

Collaboration diagram for dtn::net::HTTPConvergenceLayer:

Public Member Functions
	HTTPConvergenceLayer (const std::string &server)

virtual	~HTTPConvergenceLayer ()

dtn::core::Node::Protocol	getDiscoveryProtocol () const

void	queue (const dtn::core::Node &n, const dtn::net::BundleTransfer &job)

virtual const std::string	getName () const

Public Member Functions inherited from dtn::net::ConvergenceLayer
virtual	~ConvergenceLayer ()=0

virtual void	open (const dtn::core::Node &)

virtual void	resetStats ()

virtual void	getStats (ConvergenceLayer::stats_data &data) const

Public Member Functions inherited from dtn::daemon::IndependentComponent
	IndependentComponent ()

virtual	~IndependentComponent ()

virtual void	initialize () throw ()

virtual void	startup () throw ()

virtual void	terminate () throw ()

Public Member Functions inherited from dtn::daemon::Component
virtual	~Component ()=0

Protected Member Functions
virtual void	componentUp () throw ()

virtual void	componentRun () throw ()

virtual void	componentDown () throw ()

void	__cancellation () throw ()

Protected Member Functions inherited from dtn::daemon::IndependentComponent
void	run () throw ()

Additional Inherited Members
Public Types inherited from dtn::net::ConvergenceLayer
typedef std::pair< string, string >	stats_pair

typedef std::map< string, string >	stats_data

Detailed Description

Definition at line 65 of file HTTPConvergenceLayer.h.

Constructor & Destructor Documentation

dtn::net::HTTPConvergenceLayer::HTTPConvergenceLayer ( const std::string & server )

HTTPConvergenceLayer constructor calls the curl_global_init() method to initialize curl global. Furthermore the attributes _server _push_iob and _running will be set.

Parameters

server The server parameter contains the Tomcat-Server URL

Definition at line 102 of file HTTPConvergenceLayer.cpp.

dtn::net::HTTPConvergenceLayer::~HTTPConvergenceLayer ( )

virtual

HTTPConvergenceLayer destructor, when the destructor is calling it calls the curl_global_cleanup() method to clean curl sessions.

Definition at line 113 of file HTTPConvergenceLayer.cpp.

Member Function Documentation

void dtn::net::HTTPConvergenceLayer::__cancellation	(	)
throw	(
	)

protectedvirtual

This method is from IndependentComponent interface. It could abort the componentRun() thread on the hard way.

Implements dtn::daemon::IndependentComponent.

Definition at line 414 of file HTTPConvergenceLayer.cpp.

void dtn::net::HTTPConvergenceLayer::componentDown	(	)
throw	(
	)

protectedvirtual

This method is from IndependentComponent interface and is called when the IBR-DTN is shutting down. This method trys to stop the DownloadThread and to finalize the iobuffer, for a clean shut down.

Implements dtn::daemon::IndependentComponent.

Definition at line 406 of file HTTPConvergenceLayer.cpp.

void dtn::net::HTTPConvergenceLayer::componentRun	(	)
throw	(
	)

protectedvirtual

This method is from IndependentComponent interface. It runs as independent thread. This method is for receving data vom HTTP server. For the receiving the long polling mechanism is used. Curl calls when receiving data the HTTPConvergenceLayer_callback_write() method. There the received data is written in the ibrcommon::iobuffer, where the DownloadThread::run() method evaluate the stream. If the connection aborted, it will wait the CONN_TIMEOUT value and retry to connect until it could connect. When the connection is set up the DownloadThread the iobuffer will be initialize, when disconnecting the iobuffer will finalize.

Implements dtn::daemon::IndependentComponent.

Definition at line 329 of file HTTPConvergenceLayer.cpp.

References dtn::net::CONN_TIMEOUT, dtn::data::EID::getString(), and dtn::core::BundleCore::local.

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void dtn::net::HTTPConvergenceLayer::componentUp	(	)
throw	(
	)

protectedvirtual

Method from IndependentComponent interface, this method is called before the componentRun() method is called. At time here is nothing to do.

Implements dtn::daemon::IndependentComponent.

Definition at line 313 of file HTTPConvergenceLayer.cpp.

dtn::core::Node::Protocol dtn::net::HTTPConvergenceLayer::getDiscoveryProtocol ( ) const

virtual

Method to return protocol type, in this case HTTP.

Implements dtn::net::ConvergenceLayer.

Definition at line 304 of file HTTPConvergenceLayer.cpp.

References dtn::core::Node::CONN_HTTP.

const std::string dtn::net::HTTPConvergenceLayer::getName ( ) const

virtual

See Also: Component::getName()

Get method, returns a string with the name of this class, in this case "HTTPConvergenceLayer"

Implements dtn::daemon::Component.

Definition at line 430 of file HTTPConvergenceLayer.cpp.

void dtn::net::HTTPConvergenceLayer::queue	(	const dtn::core::Node &	node,
		const dtn::net::BundleTransfer &	job
	)

virtual

See Also: ConvergenceLayer::queue()

Function to send data to Tomcat Server. This method is from the ConvergenceLayer interface. Everytime a bundle is queued, this method will be called to send the bundle over HTTP. The HTTP transfer is performed in classical request-response principle. For file upload the HTTP PUT method is used. Curl uses the HTTPConvergenceLayer_callback_read() method for reading the bundle content. After a bundle is successfully transfered this method will raise the events for TransferCompletedEvent and the BundleEvent for BUNDLE_FORWARDED.

Parameters

node	node informations
job	parameter to get next bundle to send from storage

Implements dtn::net::ConvergenceLayer.

Definition at line 195 of file HTTPConvergenceLayer.cpp.

References dtn::net::BundleTransfer::abort(), dtn::net::BundleTransfer::complete(), dtn::core::Node::CONN_HTTP, dtn::net::CURL_CONN_OK, dtn::core::BundleCore::filter(), dtn::storage::BundleStorage::get(), dtn::net::BundleTransfer::getBundle(), dtn::core::BundleCore::getInstance(), dtn::core::BundleCore::getStorage(), dtn::data::EID::getString(), dtn::net::HTTP_OK, dtn::core::BundleCore::local, dtn::core::BundleFilter::OUTPUT, dtn::net::TransferAbortedEvent::REASON_BUNDLE_DELETED, dtn::net::TransferAbortedEvent::REASON_REFUSED_BY_FILTER, dtn::core::FilterContext::setBundle(), dtn::core::FilterContext::setProtocol(), and dtn::data::Bundle::size().

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

daemon/src/net/HTTPConvergenceLayer.h
daemon/src/net/HTTPConvergenceLayer.cpp

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation