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org.apache.cocoon.selection
Class NamedPatternsSelector

java.lang.Object
  org.apache.cocoon.util.AbstractLogEnabled
      org.apache.cocoon.selection.NamedPatternsSelector

All Implemented Interfaces:

Configurable, org.apache.cocoon.selection.Selector, ThreadSafe

public abstract class NamedPatternsSelector

extends org.apache.cocoon.util.AbstractLogEnabled

implements Configurable, ThreadSafe, org.apache.cocoon.selection.Selector

Abstract class for selectors that select a value when it matches some patterns associated to the select expression.

Known implementations of this abstract class include BrowserSelector, HostSelector from cocoon-sitemap-components maven module.

Version:

$Id: NamedPatternsSelector.html 1304280 2012-03-23 11:18:01Z ilgrosso $

Field Summary

Fields inherited from interface org.apache.cocoon.selection.Selector

ROLE

Constructor Summary

NamedPatternsSelector()

Method Summary

protected boolean	checkPatterns(String expression, String value) Checks if value is a substring of one of the patterns associated to expression
protected void	configure(Configuration conf, String confName, String nameAttr, String valueAttr) Setup the association from expressions to a list of patterns.

Methods inherited from class org.apache.cocoon.util.AbstractLogEnabled

getLogger, setLogger

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.avalon.framework.configuration.Configurable

configure

Methods inherited from interface org.apache.cocoon.selection.Selector

select

Constructor Detail

NamedPatternsSelector

public NamedPatternsSelector()

Method Detail

configure

protected void configure(Configuration conf,
                         String confName,
                         String nameAttr,
                         String valueAttr)
                  throws ConfigurationException

Setup the association from expressions to a list of patterns. The configuration should look like : <pre> <map:selector name="foo" src="..."> <confName nameAttr="expression" valueAttr="pattern"/> ... others (expression, pattern) associations ... </map:selector> </pre>

Parameters:

conf - the configuration

confName - the name of children of conf that will be used to build associations

nameAttr - the name of the attribute that holds the expression

valueAttr - the name of the attribute that holds the pattern

Throws:

ConfigurationException

checkPatterns

protected boolean checkPatterns(String expression,
                                String value)

Checks if value is a substring of one of the patterns associated to expression

Parameters:

expression - the expression that is selected

value - the value to check

Returns:

true if value matches one of the patterns