There's no API provided for a ResourceComponent to obtain its parent
ResourceComponent's plugin configuration. However, there is the
ResourceContext.getParentResourceComponent() API, so if a
ResourceComponent wanted to provide child ResourceComponents access to
its plugin config it could implement:
public ResourceContext getResourceContext();
// then child ResourceComponents could do
((FooComponent)getParentResourceComponent()).getResourceContext().getPluginConfiguration()
or
public Configuration getPluginConfiguration();
// then child ResourceComponents could do
((FooComponent)getParentResourceComponent()).getPluginConfiguration()
or it could just provide access to certain plugin configuration
properties, e.g.:
public File getInstallPath();
On 12/21/2010 08:28 PM, Lin Gao wrote:
Hi, gurus:
I am fresher on RHQ plug-ins, I am writing a RHQ plug-in, and have a question on the
plugin configuration:
My rhq-plugins.xml:
<plugin name="HttpCheck" displayName="Http Server Checker"
...>
<server name="Http Server Checker"
discovery="HttpCheckServerDiscoveryComponent"
class="HttpCheckResourceComponent">
<server name="HttpServer-Host" supportsManualAdd="true"
discovery="HttpHostDiscoveryComponent"
class="HttpHostResourceComponent">
<plugin-configuration>
<c:simple-property name="host" ... />
<c:simple-property name="port" type="integer" ...
/>
</plugin-configuration>
<service name="HttpServer-Path" supportsManualAdd="true"
discovery="HttpPathDiscoveryComponent"
class="HttpPathResourceComponent">
<plugin-configuration>
<c:simple-property name="path" ... />
</plugin-configuration>
</service>
</server>
</server>
</plugin>
The idea of this plugin is to check the specified path of one http server whether it is
available.
In the
HttpPathResourceComponent.start(ResourceContext _context){
Configuration config = context.getPluginConfiguration();
String path = config.getSimpleValue("path", "/"); // Here get
the path configuration
//TODO: How to get the host and port here ??
//TODO: What is the best practice to get the plugin configuration in parent
resource ??
}
--
Best Regards
Lin Gao
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--
Ian Springer
Principal Software Developer
JBoss Operations Network
Red Hat
ian.springer(a)redhat.com