com.ctrip.framework.apollo.spring.property

Class PlaceholderHelper

java.lang.Object

com.ctrip.framework.apollo.spring.property.PlaceholderHelper

public class PlaceholderHelper
extends Object

Placeholder helper functions.

Constructor Summary

Constructors

Constructor and Description
PlaceholderHelper()

Method Summary

Methods

Modifier and Type	Method and Description
Set<String>	extractPlaceholderKeys(String propertyString) Extract keys from placeholder, e.g.
Object	resolvePropertyValue(org.springframework.beans.factory.config.ConfigurableBeanFactory beanFactory, String beanName, String placeholder) Resolve placeholder property values, e.g.

Methods inherited from class java.lang.Object

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

Constructor Detail

PlaceholderHelper

public PlaceholderHelper()

Method Detail

resolvePropertyValue

public Object resolvePropertyValue(org.springframework.beans.factory.config.ConfigurableBeanFactory beanFactory,
                          String beanName,
                          String placeholder)

Resolve placeholder property values, e.g.

"${somePropertyValue}" -> "the actual property value"

extractPlaceholderKeys

public Set<String> extractPlaceholderKeys(String propertyString)

Extract keys from placeholder, e.g.

• ${some.key} => "some.key"
• ${some.key:${some.other.key:100}} => "some.key", "some.other.key"
• ${${some.key}} => "some.key"
• ${${some.key:other.key}} => "some.key"
• ${${some.key}:${another.key}} => "some.key", "another.key"
• #{new java.text.SimpleDateFormat('${some.key}').parse('${another.key}')} => "some.key", "another.key"