org.apache.jetspeed.portal.portlets.viewprocessor
Class XSLViewProcessor

java.lang.Object
  org.apache.jetspeed.portal.portlets.viewprocessor.XSLViewProcessor

All Implemented Interfaces:

ViewProcessor

Direct Known Subclasses:

RSSViewProcessor

public class XSLViewProcessor

extends java.lang.Object

implements ViewProcessor

Simple ViewProcessor which does a basic XSLT transform with the stylesheet parameter and the given URL.

Since:

1.4b4

Version:

$Id: $

Author:

tkuebler@cisco.com

Field Summary

protected org.w3c.dom.Document	document
static java.lang.String	ERROR_NOT_VALID
static java.lang.String	INVALID_TYPE
protected java.util.Hashtable	stylesheets

Constructor Summary

XSLViewProcessor()

Method Summary

protected java.io.Reader	cleanse(java.lang.String content) Given a URL to some content, clean the content to Xerces can handle it better.
protected org.w3c.dom.Node	getNode(org.w3c.dom.Node start, java.lang.String name) Utility method for traversing the document parsed DOM tree and retrieving a Node by tagname
void	init(Portlet portlet) This method loads the init parameters and parse the document tied to this portlet
java.lang.Object	processView(GenericMVCContext context) This methods outputs the content of the portlet for a given request.
boolean	supportsType(MimeType mimeType) This portlet supports has many types as those it has stylesheets defined for in its parameters

Methods inherited from class java.lang.Object

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

Field Detail

ERROR_NOT_VALID

public static final java.lang.String ERROR_NOT_VALID

See Also:

Constant Field Values

INVALID_TYPE

public static final java.lang.String INVALID_TYPE

See Also:

Constant Field Values

document

protected org.w3c.dom.Document document

stylesheets

protected java.util.Hashtable stylesheets

Constructor Detail

XSLViewProcessor

public XSLViewProcessor()

Method Detail

init

public void init(Portlet portlet)
          throws PortletException

This method loads the init parameters and parse the document tied to this portlet

Specified by:

init in interface ViewProcessor

Parameters:

portlet -

Throws:

PortletException

processView

public java.lang.Object processView(GenericMVCContext context)

This methods outputs the content of the portlet for a given request.

Specified by:

processView in interface ViewProcessor

Parameters:

context -

Returns:

the content to be displayed to the user-agent

supportsType

public boolean supportsType(MimeType mimeType)

This portlet supports has many types as those it has stylesheets defined for in its parameters

Parameters:

mimeType - the MIME type queried

Returns:

true if the portlet knows how to display content for mimeType

See Also:

Portlet.supportsType(org.apache.jetspeed.util.MimeType)

getNode

protected org.w3c.dom.Node getNode(org.w3c.dom.Node start,
                                   java.lang.String name)

Utility method for traversing the document parsed DOM tree and retrieving a Node by tagname

Parameters:

start - the parent node for the search

name - the tag name to be searched for

Returns:

the first child node of start whose tagname is name

cleanse

protected java.io.Reader cleanse(java.lang.String content)
                          throws java.io.IOException

Given a URL to some content, clean the content to Xerces can handle it better. Right now this involves:

• If the document doesn't begin with "<?xml version=" truncate the content until this is the first line

Parameters:

content -

Returns:

Throws:

java.io.IOException