org.jboss.gravia.utils

Class StringPropertyReplacer

java.lang.Object

org.jboss.gravia.utils.StringPropertyReplacer

public final class StringPropertyReplacer
extends Object

A utility class for replacing properties in strings.

Since:

16-Sep-2010

Author:

Thomas.Diesler@jboss.com

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	StringPropertyReplacer.PropertyProvider

Field Summary

Fields

Modifier and Type	Field and Description
static String	NEWLINE New line string constant

Constructor Summary

Constructors

Constructor and Description
StringPropertyReplacer()

Method Summary

Methods

Modifier and Type	Method and Description
static String	replaceProperties(String string) Go through the input string and replace any occurance of ${p} with the System.getProperty(p) value.
static String	replaceProperties(String string, StringPropertyReplacer.PropertyProvider provider) Go through the input string and replace any occurance of ${p} with the PropertyProvider.getProperty(p) value.

Methods inherited from class java.lang.Object

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

Field Detail

NEWLINE

public static final String NEWLINE

New line string constant

Constructor Detail

StringPropertyReplacer

public StringPropertyReplacer()

Method Detail

replaceProperties

public static String replaceProperties(String string)

Go through the input string and replace any occurance of ${p} with the System.getProperty(p) value. If there is no such property p defined, then the ${p} reference will remain unchanged.

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.PropertyProvider provider)

Go through the input string and replace any occurance of ${p} with the PropertyProvider.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 PropertyProvider.getProperty("file.separator") value and the property ${:} is replaced with PropertyProvider.getProperty("path.separator").

Parameters:

string - - the string with possible ${} references

provider - - the source for ${x} property ref values

Returns:

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