dart::common::ResourceRetriever Class Reference

ResourceRetriever provides methods for testing for the existance of and accessing the content of a resource specified by URI. More...

#include <ResourceRetriever.hpp>

Inheritance diagram for dart::common::ResourceRetriever:

Public Member Functions
virtual	~ResourceRetriever ()=default
virtual bool	exists (const Uri &uri)=0
	Returns whether the resource specified by a URI exists. More...
virtual ResourcePtr	retrieve (const Uri &uri)=0
	Returns the resource specified by a URI or nullptr on failure. More...
virtual std::string	readAll (const Uri &uri)
	Reads all data from the resource of uri, and returns it as a string. More...
virtual std::string	getFilePath (const Uri &uri)
	Returns absolute file path to uri; an empty string if unavailable. More...

Detailed Description

ResourceRetriever provides methods for testing for the existance of and accessing the content of a resource specified by URI.

Constructor & Destructor Documentation

~ResourceRetriever()

virtual dart::common::ResourceRetriever::~ResourceRetriever ( )

virtualdefault

Member Function Documentation

exists()

virtual bool dart::common::ResourceRetriever::exists ( const Uri &  uri )

pure virtual

Returns whether the resource specified by a URI exists.

Implemented in dart::common::LocalResourceRetriever, dart::utils::DartResourceRetriever, dart::utils::PackageResourceRetriever, and dart::utils::CompositeResourceRetriever.

getFilePath()

std::string dart::common::ResourceRetriever::getFilePath ( const Uri &  uri )

virtual

Returns absolute file path to uri; an empty string if unavailable.

This base class returns an empty string by default.

Reimplemented in dart::common::LocalResourceRetriever, dart::utils::PackageResourceRetriever, dart::utils::DartResourceRetriever, and dart::utils::CompositeResourceRetriever.

readAll()

std::string dart::common::ResourceRetriever::readAll ( const Uri &  uri )

virtual

Reads all data from the resource of uri, and returns it as a string.

Parameters

[in]

uri

URI to the resource to be retrieved.

Returns

The string retrieved from the resource.

Exceptions

std::runtime_error

when failed to read sucessfully.

retrieve()

virtual ResourcePtr dart::common::ResourceRetriever::retrieve ( const Uri &  uri )

pure virtual

Returns the resource specified by a URI or nullptr on failure.

Implemented in dart::common::LocalResourceRetriever, dart::utils::DartResourceRetriever, dart::utils::PackageResourceRetriever, and dart::utils::CompositeResourceRetriever.