org.apache.qpid.configuration
Class PropertyUtils
java.lang.Object
org.apache.qpid.configuration.PropertyUtils
public class PropertyUtils
- extends Object
PropertyUtils provides helper methods for dealing with Java properties.
CRC Card
Responsibilities | Collaborations
|
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Expand system properties into strings with named expansions.
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- Todo:
- Make the lookup method generic by passing in the properties to use for the expansion, rather than hard coding
as system properties. The expansion code has greater potential for re-use that way., Some more property related code could be added to this utils class, which might more appropriately reside under
org.apache.qpid.util. For example standardised code to load properties from a resource name, currently found in
QpidProperties and possibly other places could be moved here.
Method Summary |
static String |
replaceProperties(String value)
Given a string that contains substrings of the form ${xxx} , looks up the valuea of 'xxx' as a
system properties and substitutes tham back into the original string, to provide a property value expanded
string. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
PropertyUtils
public PropertyUtils()
replaceProperties
public static String replaceProperties(String value)
throws PropertyException
- Given a string that contains substrings of the form
${xxx}
, looks up the valuea of 'xxx' as a
system properties and substitutes tham back into the original string, to provide a property value expanded
string.
- Parameters:
value
- The string to be scanned for property references. May be null
, in which case this
method returns immediately with no effect.
- Returns:
- The original string with the properties replaced, or
null
if the original string is
null
.
- Throws:
PropertyException
- If the string contains an opening ${
without a balancing }
,
or if the property to expand does not exist as a system property.
Licensed to the Apache Software Foundation