Reload property file without restarting tomcat

[dks]

Hi,

I am new to Spring 3.0 . How can i reload my property file without restarting tomcat ?.

i used this peace of code in applicationcontext.xml and also used the jar file provided here :
http://www.wuenschenswert.net/wunschdenken/archives/127

and i am getting error regarding bean creation.......

<bean id="configproperties"
class="net.wuenschenswert.spring.ReloadablePropert iesFactoryBean">
<property name="location" value="file:src/test/net/wuenschenswert/spring/example/config.properties"/>
</bean>

<bean id="propertyConfigurer"
class="net.wuenschenswert.spring.ReloadingProperty PlaceholderConfigurer">
<property name="properties" ref="configproperties"/>
</bean>

<bean id="mybean" class="net.wuenschenswert.spring.example.MyBean">
<property name="cachesize" value="#{my.cache.size=100}"/>
</bean>

<!-- regularly reload property files. -->
<bean id="timer" class="org.springframework.scheduling.timer.TimerF actoryBean">
<property name="scheduledTimerTasks">
<bean id="reloadProperties" class="org.springframework.scheduling.timer.Schedu ledTimerTask">
<property name="period" value="1000"/>
<property name="runnable">
<bean class="net.wuenschenswert.spring.ReloadConfigurati on">
<property name="reconfigurableBeans">
<list>
<ref bean="configproperties"/>
<!-- others... -->
</list>
</property>
</bean>
</property>
</bean>
</property>
</bean>

needed help very urgentely........

[rishishehrawat]

This is not possible as the properties are read during Bean Factory Post Processing phase.

[JohnWilliams]

Reload property file without restarting tomcat

Hi dks

I use a FileMonitor to watch when a properties file changes. When a change is detected I rebuild the application context.

Essentially the FileListener.fileChanged() method needs to contain:

   
 public void fileChanged(File file) {
	synchronized (monitorObject) { // sync to protect any reading of half-baked stuff
	    isConfigReloading = true;

	    // applicationContext starts life as ClassPathXmlApplicationContext("applicationContext.xml");
	    ((ClassPathXmlApplicationContext) applicationContext).refresh(); 

	    isConfigReloading = false;
	    monitorObject.notifyAll();
	}
    }

To prevent half built stuff from being read I have matching sync in the getApplicationContext():

   
 public static ApplicationContext getApplicationContext() {
	synchronized (monitorObject) {
	    while (isConfigReloading) { // while for spin lock
		try {
		    monitorObject.wait();
		} catch (InterruptedException e) {
		    // don't try to get a logger
		    e.printStackTrace();
		}
	    }
	}
	return applicationContext;
    }