org.apache.nifi.nar

Class StandardNarLoader

java.lang.Object

org.apache.nifi.nar.StandardNarLoader

All Implemented Interfaces:

NarLoader

public class StandardNarLoader
extends Object
implements NarLoader

Loads a set of NARs from the file system into the running application. NOTE: Initially this will only be used from the NarAutoLoader which is watching a directory for new files, but eventually this may also be used for loading a NAR that was downloaded from the extension registry, and thus the load method is synchronized to ensure only one set of NARs can be in process of loading at a given time.

Field Summary

Fields

Modifier and Type	Field and Description
private File	docsWorkingDir
private ExtensionDiscoveringManager	extensionManager
private ExtensionMapping	extensionMapping
private File	extensionsWorkingDir
private ExtensionUiLoader	extensionUiLoader
private static org.slf4j.Logger	LOGGER
private NarClassLoaders	narClassLoaders
private NarUnpackMode	narUnpackMode
private Set<BundleDetails>	previouslySkippedBundles

Constructor Summary

Constructors

Constructor and Description
StandardNarLoader(File extensionsWorkingDir, File docsWorkingDir, NarClassLoaders narClassLoaders, ExtensionDiscoveringManager extensionManager, ExtensionMapping extensionMapping, ExtensionUiLoader extensionUiLoader, NarUnpackMode narUnpackMode)

Method Summary

Modifier and Type	Method and Description
NarLoadResult	load(Collection<File> narFiles) Loads the given NARs.
private File	unpack(File narFile)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOGGER

private static org.slf4j.Logger LOGGER

extensionsWorkingDir

private final File extensionsWorkingDir

docsWorkingDir

private final File docsWorkingDir

narClassLoaders

private final NarClassLoaders narClassLoaders

extensionManager

private final ExtensionDiscoveringManager extensionManager

extensionMapping

private final ExtensionMapping extensionMapping

extensionUiLoader

private final ExtensionUiLoader extensionUiLoader

narUnpackMode

private final NarUnpackMode narUnpackMode

previouslySkippedBundles

private Set<BundleDetails> previouslySkippedBundles

Constructor Detail

StandardNarLoader

public StandardNarLoader(File extensionsWorkingDir,
                         File docsWorkingDir,
                         NarClassLoaders narClassLoaders,
                         ExtensionDiscoveringManager extensionManager,
                         ExtensionMapping extensionMapping,
                         ExtensionUiLoader extensionUiLoader,
                         NarUnpackMode narUnpackMode)

Method Detail

load

public NarLoadResult load(Collection<File> narFiles)

Description copied from interface: NarLoader

Loads the given NARs.

Specified by:

load in interface NarLoader

Parameters:

narFiles - the collection of NAR files to load

Returns:

the result of loading the NARs (i.e. bundles that were loaded, bundles that were skipped)

unpack

private File unpack(File narFile)