public class ProvidedURLLocationStrategy extends Object implements FileLocationStrategy
A specialized implementation of FileLocationStrategy
which checks whether a passed in FileLocator
already has a defined URL.
FileLocator
objects that have a URL already reference a file in an unambiguous way. Therefore, this strategy
just returns the URL of the passed in FileLocator
. It can be used as a first step of the file resolving
process. If it fails, more sophisticated attempts for resolving the file can be made.
Constructor and Description |
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ProvidedURLLocationStrategy() |
Modifier and Type | Method and Description |
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URL |
locate(FileSystem fileSystem,
FileLocator locator)
Tries to locate the specified file.
|
public ProvidedURLLocationStrategy()
public URL locate(FileSystem fileSystem, FileLocator locator)
FileSystem
to be used. Note that the
FileLocator
object may also contain a FileSystem
, but this is optional. The passed in
FileSystem
should be used, and callers must not pass a null reference for this argument. A concrete
implementation has to evaluate the properties stored in the FileLocator
object and try to match them to an
existing file. If this can be done, a corresponding URL is returned. Otherwise, result is null.
Implementations should not throw an exception (unless parameters are null) as there might be alternative
strategies which can find the file in question. This implementation just returns the URL stored in the given FileLocator
.locate
in interface FileLocationStrategy
fileSystem
- the FileSystem
to be used for this operationlocator
- the object describing the file to be locatedCopyright © 2001–2022 The Apache Software Foundation. All rights reserved.