Package com.fathzer.plugin.loader.utils

Class FileUtils

java.lang.Object

com.fathzer.plugin.loader.utils.FileUtils

public class FileUtils
extends Object

Some utilities about files.

Field Summary

Fields

Modifier and Type	Field	Description
static final BiPredicate<Path,BasicFileAttributes>	IS_JAR	A predicate that matches jar files.

Method Summary

Modifier and Type	Method	Description
static List<Path>	getFiles(Path folder, int depth, BiPredicate<Path,BasicFileAttributes> matcher)	Gets the paths of files contained in a folder.
static List<Path>	getJarFiles(Path folder, int depth)	Gets the paths of jar files contained in a folder.
static URL	getURL(Path file)	Gets the URL of a file The main difference with Path.toUri().toURL() is it encapsulate the 'more than unlikely' MalformedURLException thrown by toURL() in a UncheckedIOException, making it easy to use in a lambda expression.

Methods inherited from class java.lang.Object

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

Field Details

IS_JAR

public static final BiPredicate<Path,BasicFileAttributes> IS_JAR

A predicate that matches jar files.

See Also:

• getFiles(Path, int, BiPredicate)

Method Details

getURL

public static URL getURL(Path file)

Gets the URL of a file
The main difference with Path.toUri().toURL() is it encapsulate the 'more than unlikely' MalformedURLException thrown by toURL() in a UncheckedIOException, making it easy to use in a lambda expression.

Parameters:

file - a File

Returns:

an url

getFiles

public static List<Path> getFiles(Path folder,
 int depth,
 BiPredicate<Path,BasicFileAttributes> matcher)
                           throws IOException

Gets the paths of files contained in a folder.

Parameters:

folder - The folder to scan

depth - The maximum number of directory levels to search.
A value of 1 means the search is limited to the jars directly under the searched folder.
To set no limit, you should set the depth to Integer.MAX_VALUE

matcher - A matcher to filter the files. IS_JAR can be used to retain all jar files.

Returns:

A list of path that matches the matcher

Throws:

IOException - if a problem occurs while browsing the folder.

IllegalArgumentException - if depth is < 1

getJarFiles

public static List<Path> getJarFiles(Path folder,
 int depth)
                              throws IOException

Gets the paths of jar files contained in a folder.

Parameters:

folder - The folder to scan

depth - The maximum number of directory levels to search.
A value of 1 means the search is limited to the jars directly under the searched folder.
To set no limit, you should set the depth to Integer.MAX_VALUE

Returns:

A list of jar files

Throws:

IOException - if a problem occurs while browsing the folder.

IllegalArgumentException - if depth is < 1

See Also:

• getFiles(Path, int, BiPredicate)