Module org.apache.wicket.util

Package org.apache.wicket.util.resource

Class FileResourceStream

java.lang.Object

org.apache.wicket.util.resource.AbstractResourceStream

org.apache.wicket.util.resource.FileResourceStream

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable, IClusterable, IFixedLocationResourceStream, IResourceStream, IModifiable

public class FileResourceStream
extends AbstractResourceStream
implements IFixedLocationResourceStream

A FileResourceStream is an IResource implementation for files.

Author:

Jonathan Locke

See Also:

• IResourceStream
• IModifiable
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
FileResourceStream(File file)	Constructor.
FileResourceStream(File file)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this resource.
String	getContentType()	Gets the mime type of this resource
File	getFile()
InputStream	getInputStream()	Gets the resource stream.
Instant	lastModifiedTime()	Gets the last time this modifiable thing changed.
Bytes	length()	Gets the size of this resource
String	locationAsString()
String	toString()

Methods inherited from class org.apache.wicket.util.resource.AbstractResourceStream

getLocale, getStyle, getVariation, setLocale, setStyle, setVariation

Methods inherited from class java.lang.Object

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

Constructor Details

FileResourceStream

public FileResourceStream(File file)

Constructor.

Parameters:

file - File containing resource

FileResourceStream

public FileResourceStream(File file)

Constructor.

Parameters:

file - File containing resource

Method Details

close

public void close()
           throws IOException

Closes this resource.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface IResourceStream

Throws:

IOException

getContentType

public String getContentType()

Description copied from interface: IResourceStream

Gets the mime type of this resource

Specified by:

getContentType in interface IResourceStream

Overrides:

getContentType in class AbstractResourceStream

Returns:

The mime type of this resource, such as "image/jpeg" or "text/html". Return null to let ResourceStreamRequestHandler handle the Content-Type automatically

getFile

public File getFile()

Returns:

The file this resource resides in, if any.

getInputStream

public InputStream getInputStream()
                           throws ResourceStreamNotFoundException

Description copied from interface: IResourceStream

Gets the resource stream. You should not directly close this stream. Instead call the close() method on IResourceStream.

Specified by:

getInputStream in interface IResourceStream

Returns:

A readable input stream for this resource. The same input stream is returned until FileResourceStream.close() is invoked.

Throws:

ResourceStreamNotFoundException

See Also:

• IResourceStream.close()

lastModifiedTime

public Instant lastModifiedTime()

Description copied from interface: IModifiable

Gets the last time this modifiable thing changed.

Specified by:

lastModifiedTime in interface IModifiable

Overrides:

lastModifiedTime in class AbstractResourceStream

Returns:

The last time this resource was modified

See Also:

• IModifiable.lastModifiedTime()

toString

public String toString()

Overrides:

toString in class Object

length

public Bytes length()

Description copied from interface: IResourceStream

Gets the size of this resource

Specified by:

length in interface IResourceStream

Overrides:

length in class AbstractResourceStream

Returns:

The size of this resource in the number of bytes, or null if unknown

locationAsString

public String locationAsString()

Specified by:

locationAsString in interface IFixedLocationResourceStream

Returns:

The fixed location as a string, e.g. the file name or the URL. Return null to avoid caching the markup.