Package org.keycloak.common.util

Class StringPropertyReplacer

java.lang.Object

org.keycloak.common.util.StringPropertyReplacer

public final class StringPropertyReplacer
extends Object

A utility class for replacing properties in strings.

Version:

$Revision: 2898 $

Author:

Jason Dillon, Scott Stark, Claudio Vesco, Adrian Brock, Dimitris Andreadis

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	StringPropertyReplacer.PropertyResolver

Constructor Summary

Constructors

Constructor	Description
StringPropertyReplacer()

Method Summary

Modifier and Type	Method	Description
static String	replaceProperties(String string)	Go through the input string and replace any occurrence of ${p} with the System.getProperty(p) value.
static String	replaceProperties(String string, StringPropertyReplacer.PropertyResolver resolver)	Go through the input string and replace any occurrence of ${p} with the value resolves from resolver.
static void	setDefaultPropertyResolver(StringPropertyReplacer.PropertyResolver systemVariables)

Methods inherited from class java.lang.Object

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

Constructor Details

StringPropertyReplacer

public StringPropertyReplacer()

Method Details

setDefaultPropertyResolver

public static void setDefaultPropertyResolver(StringPropertyReplacer.PropertyResolver systemVariables)

replaceProperties

public static String replaceProperties(String string)

Go through the input string and 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:

string - - the string with possible ${} references

Returns:

the input string with all property references replaced if any. If there are no valid references the input string will be returned.

replaceProperties

public static String replaceProperties(String string,
 StringPropertyReplacer.PropertyResolver resolver)

Go through the input string and replace any occurrence of ${p} with the value resolves from resolver. 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:

string - - the string with possible ${} references

resolver - - the property resolver

Returns:

the input string with all property references replaced if any. If there are no valid references the input string will be returned.