public abstract class AbstractFileResolvingResource extends AbstractResource
UrlResource
or
ClassPathResource
.
Detects the "file" protocol, resolving file system references accordingly.
Constructor and Description |
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AbstractFileResolvingResource() |
Modifier and Type | Method and Description |
---|---|
long |
contentLength()
This implementation checks the length of the underlying File,
if available.
|
boolean |
exists()
This implementation checks whether a File can be opened,
falling back to whether an InputStream can be opened.
|
java.io.File |
getFile()
This implementation returns a File reference for the underlying class path resource, provided that it refers to a
file in the file system.
|
protected java.io.File |
getFile(java.net.URI uri)
This implementation returns a File reference for the underlying class path resource, provided that it refers to a
file in the file system.
|
protected java.io.File |
getFileForLastModifiedCheck()
This implementation determines the underlying File (or jar file, in case of a resource in a jar/zip).
|
boolean |
isReadable()
This implementation always returns
true . |
long |
lastModified()
This implementation checks the timestamp of the underlying File,
if available.
|
createRelative, equals, getFilename, getURI, getURL, hashCode, isOpen, toString
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
getDescription
getInputStream
public java.io.File getFile() throws java.io.IOException
getFile
in interface Resource
getFile
in class AbstractResource
java.io.IOException
- if the resource cannot be resolved as absolute
file path, i.e. if the resource is not available in a file systemResourceUtils.getFile(java.net.URL, String)
protected java.io.File getFileForLastModifiedCheck() throws java.io.IOException
getFileForLastModifiedCheck
in class AbstractResource
null
)java.io.IOException
- if the resource cannot be resolved as absolute
file path, i.e. if the resource is not available in a file systemprotected java.io.File getFile(java.net.URI uri) throws java.io.IOException
java.io.IOException
ResourceUtils.getFile(java.net.URI, String)
public boolean exists()
AbstractResource
exists
in interface Resource
exists
in class AbstractResource
public boolean isReadable()
AbstractResource
true
.isReadable
in interface Resource
isReadable
in class AbstractResource
InputStreamSource.getInputStream()
public long contentLength() throws java.io.IOException
AbstractResource
contentLength
in interface Resource
contentLength
in class AbstractResource
java.io.IOException
- if the resource cannot be resolved
(in the file system or as some other known physical resource type)AbstractResource.getFile()
public long lastModified() throws java.io.IOException
AbstractResource
lastModified
in interface Resource
lastModified
in class AbstractResource
java.io.IOException
- if the resource cannot be resolved
(in the file system or as some other known physical resource type)AbstractResource.getFileForLastModifiedCheck()