Package org.eclipse.jetty.rewrite.handler

Class RegexRule

java.lang.Object

org.eclipse.jetty.rewrite.handler.Rule

org.eclipse.jetty.rewrite.handler.RegexRule

Direct Known Subclasses:

HeaderRegexRule, RedirectRegexRule, RewriteRegexRule, TerminatingRegexRule

public abstract class RegexRule
extends Rule

Abstract rule to use as a base class for rules that match with a regular expression.

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.jetty.rewrite.handler.Rule

Rule.ApplyURI

Field Summary

Fields

Modifier and Type	Field	Description
protected Pattern	_regex

Fields inherited from class org.eclipse.jetty.rewrite.handler.Rule

_handling, _terminating

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RegexRule()
protected	RegexRule(String pattern)

Method Summary

Modifier and Type	Method	Description
protected abstract String	apply(String target, HttpServletRequest request, HttpServletResponse response, Matcher matcher)	Apply this rule to the request/response pair.
String	getRegex()
String	matchAndApply(String target, HttpServletRequest request, HttpServletResponse response)	This method calls tests the rule against the request/response pair and if the Rule applies, then the rule's action is triggered.
void	setRegex(String regex)	Sets the regular expression string used to match with string URI.
String	toString()	Returns the regular expression string.

Methods inherited from class org.eclipse.jetty.rewrite.handler.Rule

isHandling, isTerminating, setHandling, setTerminating

Methods inherited from class java.lang.Object

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

Field Detail

_regex

protected Pattern _regex

Constructor Detail

RegexRule

protected RegexRule()

RegexRule

protected RegexRule(String pattern)

Method Detail

setRegex

public void setRegex(String regex)

Sets the regular expression string used to match with string URI.

Parameters:

regex - the regular expression.

getRegex

public String getRegex()

Returns:

get the regular expression

matchAndApply

public String matchAndApply(String target,
                            HttpServletRequest request,
                            HttpServletResponse response)
                     throws IOException

Description copied from class: Rule

This method calls tests the rule against the request/response pair and if the Rule applies, then the rule's action is triggered.

Specified by:

matchAndApply in class Rule

Parameters:

target - The target of the request

request - the request

response - the response

Returns:

The new target if the rule has matched, else null

Throws:

IOException - if unable to match the rule

apply

protected abstract String apply(String target,
                                HttpServletRequest request,
                                HttpServletResponse response,
                                Matcher matcher)
                         throws IOException

Apply this rule to the request/response pair. Called by matchAndApply(String, HttpServletRequest, HttpServletResponse) if the regex matches.

Parameters:

target - field to attempt match

request - request object

response - response object

matcher - The Regex matcher that matched the request (with capture groups available for replacement).

Returns:

The target (possible updated).

Throws:

IOException - exceptions dealing with operating on request or response objects

toString

public String toString()

Returns the regular expression string.

Overrides:

toString in class Rule