Package com.vaadin.flow.internal

Class ResourceFolderUtil

java.lang.Object

com.vaadin.flow.internal.ResourceFolderUtil

public final class ResourceFolderUtil
extends Object

Lists the files in a folder on the classpath, wherever the folder lives.

A folder has no content of its own to read, so its files have to be listed, which depends on whether the folder is a folder on the file system, an entry in a jar or something an application server serves through a protocol of its own.

For internal use only. May be renamed or removed in a future release.

Since:

25.3

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ResourceFolderUtil.FolderFile	A file inside a folder on the classpath.
static interface	ResourceFolderUtil.FolderFileVisitor	Called for each file in a folder.

Method Summary

Modifier and Type	Method	Description
static void	visitFiles(URL folder, ResourceFolderUtil.FolderFileVisitor visitor)	Visits the files directly inside the given folder on the classpath.

Methods inherited from class java.lang.Object

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

Method Details

visitFiles

public static void visitFiles(URL folder,
 ResourceFolderUtil.FolderFileVisitor visitor)
                       throws IOException

Visits the files directly inside the given folder on the classpath.

Folders inside the folder are not visited, and neither are the files in them.

Parameters:

folder - the folder to visit the files of, as a class loader reports it

visitor - called for each file in the folder

Throws:

IOException - if the folder cannot be listed, for example because it is not an existing folder