org.apache.wicket.util.resource
Class XSLTResourceStream

java.lang.Object
  org.apache.wicket.util.resource.AbstractResourceStream
      org.apache.wicket.util.resource.XSLTResourceStream

All Implemented Interfaces:

java.io.Closeable, java.io.Serializable, IClusterable, IResourceStream, IStringResourceStream, IModifiable

public class XSLTResourceStream
extends AbstractResourceStream

IResourceStream that applies XSLT on an input IResourceStream. The XSL stylesheet itself is also an IResourceStream. Override getParameters() to pass parameters to the XSL stylesheet.

FIXME experimental feature, does not implement any kind of caching, use with care, running an XSL transformation for every request is very expensive! Please have a look at ZipResourceStream for an in-depth explanation of what needs to be done with respect to caching.

Author:

Jean-Baptiste Quenot

See Also:

Serialized Form

Constructor Summary

XSLTResourceStream(IResourceStream xsltResource, IResourceStream xmlResource)
Construct.

Method Summary

void	close() Closes the resource.
java.lang.String	getContentType() Returns always null
java.io.InputStream	getInputStream() Gets the resource stream.
protected java.util.Map<java.lang.Object,java.lang.Object>	getParameters()
Time	lastModifiedTime() Returns always null
long	length() Gets the size of this resource in bytes TODO 1.5: rename to lengthInBytes() or let it return some sort of size object

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

asString, getCharset, getLocale, setCharset, setLocale

Methods inherited from class java.lang.Object

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

Constructor Detail

XSLTResourceStream

public XSLTResourceStream(IResourceStream xsltResource,
                          IResourceStream xmlResource)

Construct.

Parameters:

xsltResource - the XSL stylesheet as an IResourceStream

xmlResource - the input XML document as an IResourceStream

Method Detail

getParameters

protected java.util.Map<java.lang.Object,java.lang.Object> getParameters()

Returns:

a Map of XSLT parameters, appropriate for passing information to the XSL stylesheet

close

public void close()
           throws java.io.IOException

Description copied from interface: IResourceStream

Closes the resource. Normally, this includes closing any underlying input stream returned by getInputStream().

Throws:

java.io.IOException

See Also:

IResourceStream.close()

getContentType

public java.lang.String getContentType()

Returns always null

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 ResourceStreamRequestTarget handle the Content-Type automatically

See Also:

IResourceStream.getContentType()

getInputStream

public java.io.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.

Returns:

Returns the inputStream.

Throws:

ResourceStreamNotFoundException

See Also:

IResourceStream.getInputStream()

length

public long length()

Description copied from interface: IResourceStream

Gets the size of this resource in bytes TODO 1.5: rename to lengthInBytes() or let it return some sort of size object

Specified by:

length in interface IResourceStream

Overrides:

length in class AbstractResourceStream

Returns:

The size of this resource in the number of bytes, or -1 if unknown

See Also:

IResourceStream.length()

lastModifiedTime

public Time lastModifiedTime()

Returns always null

Specified by:

lastModifiedTime in interface IModifiable

Overrides:

lastModifiedTime in class AbstractResourceStream

Returns:

the last modification Time

See Also:

IModifiable.lastModifiedTime()