org.apache.nifi.nar

Interface NarProvider

public interface NarProvider

Represents an external source where the NAR files might be acquired from. Used by the NAR auto loader functionality in order to poll an external source for new NAR files to load.

Method Summary

Modifier and Type	Method and Description
InputStream	fetchNarContents(String location) Fetches the NAR at the given location.
void	initialize(NarProviderInitializationContext context) Initializes the NAR Provider based on the given set of properties.
Collection<String>	listNars() Performs a listing of all NAR's that are available.

Method Detail

initialize

void initialize(NarProviderInitializationContext context)

Initializes the NAR Provider based on the given set of properties.

listNars

Collection<String> listNars()
                     throws IOException

Performs a listing of all NAR's that are available.

Throws:

IOException

fetchNarContents

InputStream fetchNarContents(String location)
                      throws IOException

Fetches the NAR at the given location. The location should be one of the values returned by listNars().

Throws:

IOException