Package org.apache.xml.security.utils.resolver.implementations

Class ResolverXPointer

java.lang.Object

org.apache.xml.security.utils.resolver.ResourceResolverSpi

org.apache.xml.security.utils.resolver.implementations.ResolverXPointer

public class ResolverXPointer
extends ResourceResolverSpi

Handles barename XPointer Reference URIs.

To retain comments while selecting an element by an identifier ID, use the following full XPointer: URI='#xpointer(id('ID'))'.

To retain comments while selecting the entire document, use the following full XPointer: URI='#xpointer(/)'. This XPointer contains a simple XPath expression that includes the root node, which the second to last step above replaces with all nodes of the parse tree (all descendants, plus all attributes, plus all namespaces nodes).

Field Summary

Fields

Modifier and Type	Field	Description
private static org.slf4j.Logger	LOG
private static java.lang.String	XP
private static int	XP_LENGTH

Fields inherited from class org.apache.xml.security.utils.resolver.ResourceResolverSpi

properties

Constructor Summary

Constructors

Constructor	Description
ResolverXPointer()

Method Summary

Modifier and Type	Method	Description
boolean	engineCanResolveURI(ResourceResolverContext context)	This method helps the ResourceResolver to decide whether a ResourceResolverSpi is able to perform the requested action.
boolean	engineIsThreadSafe()	Tells if the implementation does can be reused by several threads safely.
XMLSignatureInput	engineResolveURI(ResourceResolverContext context)	This is the workhorse method used to resolve resources.
private static java.lang.String	getXPointerId(java.lang.String uri)	Method getXPointerId
private static boolean	isXPointerId(java.lang.String uri)	Method isXPointerId
private static boolean	isXPointerSlash(java.lang.String uri)	Method isXPointerSlash

Methods inherited from class org.apache.xml.security.utils.resolver.ResourceResolverSpi

engineAddProperies, engineGetProperty, engineGetPropertyKeys, engineSetProperty, fixURI, understandsProperty

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

XP

private static final java.lang.String XP

See Also:

Constant Field Values

XP_LENGTH

private static final int XP_LENGTH

Constructor Detail

ResolverXPointer

public ResolverXPointer()

Method Detail

engineIsThreadSafe

public boolean engineIsThreadSafe()

Description copied from class: ResourceResolverSpi

Tells if the implementation does can be reused by several threads safely. It normally means that the implementation does not have any member, or there is member change between engineCanResolve and engineResolve invocations. Or it maintains all member info in ThreadLocal methods.

Overrides:

engineIsThreadSafe in class ResourceResolverSpi

engineResolveURI

public XMLSignatureInput engineResolveURI(ResourceResolverContext context)
                                   throws ResourceResolverException

This is the workhorse method used to resolve resources.

Specified by:

engineResolveURI in class ResourceResolverSpi

Parameters:

context - Context to use to resolve resources.

Returns:

the resource wrapped around a XMLSignatureInput

Throws:

ResourceResolverException

engineCanResolveURI

public boolean engineCanResolveURI(ResourceResolverContext context)

This method helps the ResourceResolver to decide whether a ResourceResolverSpi is able to perform the requested action.

Specified by:

engineCanResolveURI in class ResourceResolverSpi

Parameters:

context - Context in which to do resolution.

Returns:

true if the engine can resolve the uri

isXPointerSlash

private static boolean isXPointerSlash(java.lang.String uri)

Method isXPointerSlash

Parameters:

uri -

Returns:

true if begins with xpointer

isXPointerId

private static boolean isXPointerId(java.lang.String uri)

Method isXPointerId

Parameters:

uri -

Returns:

whether it has an xpointer id

getXPointerId

private static java.lang.String getXPointerId(java.lang.String uri)

Method getXPointerId

Parameters:

uri -

Returns:

xpointerId to search.