Package org.jmxtrans.agent.util.io

Class AbstractResource

java.lang.Object

org.jmxtrans.agent.util.io.AbstractResource

All Implemented Interfaces:

Resource

Direct Known Subclasses:

ClasspathResource, FileResource, UrlResource

public abstract class AbstractResource
extends Object
implements Resource

Inspired by org.springframework.core.io.AbstractResource

Author:

Cyrille Le Clerc

Constructor Summary

Constructors

Constructor	Description
AbstractResource()

Method Summary

Modifier and Type	Method	Description
boolean	exists()	This implementation checks whether a File can be opened, falling back to whether an InputStream can be opened.
File	getFile()	Return a File handle for this resource.
URI	getURI()	Return a URI handle for this resource.
URL	getURL()	Return a URL handle for this resource.
long	lastModified()	Determine the last-modified timestamp for this resource.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jmxtrans.agent.util.io.Resource

getDescription, getInputStream

Constructor Details

AbstractResource

public AbstractResource()

Method Details

lastModified

public long lastModified()
                  throws IoRuntimeException

Description copied from interface: Resource

Determine the last-modified timestamp for this resource.

Specified by:

lastModified in interface Resource

Throws:

IoRuntimeException - if the resource cannot be resolved (in the file system or as some other known physical resource type)

getURL

@Nonnull
public URL getURL()
           throws IoRuntimeException

Description copied from interface: Resource

Return a URL handle for this resource.

Specified by:

getURL in interface Resource

Throws:

IoRuntimeException - if the resource cannot be resolved as URL, i.e. if the resource is not available as descriptor

getFile

@Nonnull
public File getFile()
             throws IoRuntimeException

Description copied from interface: Resource

Return a File handle for this resource.

Specified by:

getFile in interface Resource

Throws:

IoRuntimeException - if the resource cannot be resolved as absolute file path, i.e. if the resource is not available in a file system

getURI

@Nonnull
public URI getURI()
           throws IoRuntimeException

Description copied from interface: Resource

Return a URI handle for this resource.

Specified by:

getURI in interface Resource

Throws:

IoRuntimeException - if the resource cannot be resolved as URI, i.e. if the resource is not available as descriptor

exists

public boolean exists()

This implementation checks whether a File can be opened, falling back to whether an InputStream can be opened. This will cover both directories and content resources.

Specified by:

exists in interface Resource

toString

public String toString()

Overrides:

toString in class Object