org.springframework.data.hadoop.util
Class ResourceUtils

java.lang.Object
  org.springframework.data.hadoop.util.ResourceUtils

public abstract class ResourceUtils
extends Object

Utility class for dealing or location resources for Hadoop jobs.

Author:

Costin Leau, Arjen Poutsma

Constructor Summary

ResourceUtils()

Method Summary

static String	decode(String source) Decodes the given encoded source String into an URI.
static Resource	findContainingJar(Class<?> clazz) Locates the jar (within the classpath) containing the given class.
static Resource	findContainingJar(ClassLoader loader, String resourceName) Locates a jar (within the classpath) containing the given resource.

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceUtils

public ResourceUtils()

Method Detail

findContainingJar

public static Resource findContainingJar(Class<?> clazz)

Locates the jar (within the classpath) containing the given class. As this method requires loading a class, it's recommended to use findContainingJar(ClassLoader, String) instead.

Parameters:

clazz - the class to look for

Returns:

the containing jar.

findContainingJar

public static Resource findContainingJar(ClassLoader loader,
                                         String resourceName)

Locates a jar (within the classpath) containing the given resource.

Parameters:

loader - class loader to use for locating the jar

resourceName - resource to look for

Returns:

the containing jar

decode

public static String decode(String source)

Decodes the given encoded source String into an URI. Based on the following rules:

• Alphanumeric characters "a" through "z", "A" through "Z", and "0" through "9" stay the same.
• Special characters "-", "_", ".", and "*" stay the same.
• All other characters are converted into one or more bytes using the given encoding scheme. Each of the resulting bytes is written as a hexadecimal string in the %xy format.
• A sequence "%xy" is interpreted as a hexadecimal representation of the character.

Parameters:

source - the source string

Returns:

the decoded URI

Throws:

UnsupportedEncodingException - when the given encoding parameter is not supported

See Also:

URLDecoder.decode(String, String)