net.sf.jabb.util.prop

Class PlaceHolderReplacer

java.lang.Object

net.sf.jabb.util.prop.PlaceHolderReplacer

public class PlaceHolderReplacer
extends Object

It can replace the place holders in string with system or user-defined properties. Its implementation depends on jboss-common-core.jar which is part of JBoss runtime.

Author:

James Hu

Constructor Summary

Constructors

Constructor and Description
PlaceHolderReplacer()

Method Summary

Modifier and Type	Method and Description
static String	replaceWithProperties(String str) If running inside JBoss, it replace any occurrence of ${p} with the System.getProperty(p) value.
static String	replaceWithProperties(String str, Properties props) If running inside JBoss, it replace any occurrence of ${p} with the System.getProperty(p) value.

Methods inherited from class java.lang.Object

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

Constructor Detail

PlaceHolderReplacer

public PlaceHolderReplacer()

Method Detail

replaceWithProperties

public static String replaceWithProperties(String str)

If running inside JBoss, it replace any occurrence of ${p} with the System.getProperty(p) value. If there is no such property p defined, then the ${p} reference will remain unchanged. If the property reference is of the form ${p:v} and there is no such property p, then the default value v will be returned. If the property reference is of the form ${p1,p2} or ${p1,p2:v} then the primary and the secondary properties will be tried in turn, before returning either the unchanged input, or the default value. The property ${/} is replaced with System.getProperty("file.separator") value and the property ${:} is replaced with System.getProperty("path.separator").

Parameters:

str - the input string that substitution will be performed upon.

Returns:

the output string that had been processed

replaceWithProperties

public static String replaceWithProperties(String str,
                                           Properties props)

If running inside JBoss, it replace any occurrence of ${p} with the System.getProperty(p) value. If there is no such property p defined, then the ${p} reference will remain unchanged. If the property reference is of the form ${p:v} and there is no such property p, then the default value v will be returned. If the property reference is of the form ${p1,p2} or ${p1,p2:v} then the primary and the secondary properties will be tried in turn, before returning either the unchanged input, or the default value. The property ${/} is replaced with System.getProperty("file.separator") value and the property ${:} is replaced with System.getProperty("path.separator").

Parameters:

str - the input string that substitution will be performed upon.

props - the properties to be used instead of System.getProerty()

Returns:

the output string that had been replaced