How to get the plugin configuration in parent resource ?
Ian Springer
ian.springer at redhat.com
Wed Dec 22 03:49:27 UTC 2010
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
>
> _______________________________________________
> rhq-devel mailing list
> rhq-devel at lists.fedorahosted.org
> https://fedorahosted.org/mailman/listinfo/rhq-devel
--
Ian Springer
Principal Software Developer
JBoss Operations Network
Red Hat
ian.springer at redhat.com
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