Package javax.servlet.jsp.jstl.tlv

Class PermittedTaglibsTLV

java.lang.Object

javax.servlet.jsp.tagext.TagLibraryValidator

javax.servlet.jsp.jstl.tlv.PermittedTaglibsTLV

public class PermittedTaglibsTLV
extends javax.servlet.jsp.tagext.TagLibraryValidator

A TagLibraryValidator class to allow a TLD to restrict what taglibs (in addition to itself) may be imported on a page where it's used.

This TLV supports the following initialization parameter:

• permittedTaglibs: A whitespace-separated list of URIs corresponding to tag libraries permitted to be imported on the page in addition to the tag library that references PermittedTaglibsTLV (which is allowed implicitly).

This implementation only detects tag libraries declared on the <jsp:root> element, including libraries in regular JSP files or JSP Documents with a specific <jsp:root>. It does not detect libraries declared on other elements as supported by JSP 2.0.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	PermittedTaglibsTLV.PermittedTaglibsHandler	The handler that provides the base of our implementation.

Field Summary

Fields

Modifier and Type	Field	Description
private static java.lang.String	JSP_ROOT_NAME
private static java.lang.String	JSP_ROOT_QN
private static java.lang.String	JSP_ROOT_URI
private static PageParser	parser
private static java.lang.String	PERMITTED_TAGLIBS_PARAM
private java.util.Set<java.lang.String>	permittedTaglibs

Constructor Summary

Constructors

Constructor	Description
PermittedTaglibsTLV()

Method Summary

Modifier and Type	Method	Description
void	setInitParameters(java.util.Map<java.lang.String,java.lang.Object> initParams)
javax.servlet.jsp.tagext.ValidationMessage[]	validate(java.lang.String prefix, java.lang.String uri, javax.servlet.jsp.tagext.PageData page)
private javax.servlet.jsp.tagext.ValidationMessage[]	vmFromString(java.lang.String message)

Methods inherited from class javax.servlet.jsp.tagext.TagLibraryValidator

getInitParameters, release

Methods inherited from class java.lang.Object

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

Field Detail

PERMITTED_TAGLIBS_PARAM

private static final java.lang.String PERMITTED_TAGLIBS_PARAM

See Also:

Constant Field Values

JSP_ROOT_URI

private static final java.lang.String JSP_ROOT_URI

See Also:

Constant Field Values

JSP_ROOT_NAME

private static final java.lang.String JSP_ROOT_NAME

See Also:

Constant Field Values

JSP_ROOT_QN

private static final java.lang.String JSP_ROOT_QN

See Also:

Constant Field Values

parser

private static final PageParser parser

permittedTaglibs

private final java.util.Set<java.lang.String> permittedTaglibs

Constructor Detail

PermittedTaglibsTLV

public PermittedTaglibsTLV()

Method Detail

setInitParameters

public void setInitParameters(java.util.Map<java.lang.String,java.lang.Object> initParams)

Overrides:

setInitParameters in class javax.servlet.jsp.tagext.TagLibraryValidator

validate

public javax.servlet.jsp.tagext.ValidationMessage[] validate(java.lang.String prefix,
                                                             java.lang.String uri,
                                                             javax.servlet.jsp.tagext.PageData page)

Overrides:

validate in class javax.servlet.jsp.tagext.TagLibraryValidator

vmFromString

private javax.servlet.jsp.tagext.ValidationMessage[] vmFromString(java.lang.String message)