xdocs/services/reconfigurationservice.xml (59 lines of code) (raw):
<?xml version="1.0"?>
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<document>
<properties>
<title>Fulcrum YAAFI Avalon Container Reconfiguration Service</title>
<author email="siegfried.goeschl@it20one.at">Siegfried Goeschl</author>
</properties>
<body>
<section name="Overview">
<p>
This service uses a background thread to monitor a list of configuration
files. A resource is loaded by using a resource name and an InputStreamLocator.
The a SHA-1 hashcode is derived and compared to the previous hashcode.
If a change is detected either the whole container or a list of
services are reconfigured. This service allows reconfiguration
support without using client/server communication.
</p>
</section>
<section name="Configuration">
<subsection name="Role Configuration">
<source>
<![CDATA[
<role
name="org.apache.fulcrum.yaafi.service.reconfiguration.ReconfigurationService"
shorthand="ReconfigurationService"
default-class="org.apache.fulcrum.yaafi.service.reconfiguration.ReconfigurationServiceImpl"
early-init="true"
description="Monitors configuration files to reconfigure YAAFI"
/>
]]>
</source>
</subsection>
<subsection name="Example Component Configuration">
<p>
The following configuration checks every 5 seconds
if the files have changed. Changing "TestComponentConfig"
triggers the reconfiguration of the container whereas a change
of "TestParameters.properties" would reconfigure the two
listed services.
</p>
<source>
<![CDATA[
<ReconfigurationService interval="5000">
<entry>
<location>./src/test/TestComponentConfig.xml</location>
</entry>
<entry>
<location>./src/test/TestParameters.properties</location>
<services>
<service name="org.apache.fulcrum.yaafi.TestComponent"/>
<service name="org.apache.fulcrum.yaafi.service.systemproperty.SystemPropertyService"/>
</services>
</entry>
</ReconfigurationService>
]]>
</source>
</subsection>
</section>
</body>
</document>