Le't say I've got xml like below ( the interesting part ).
I want to know which aqents/servers are connected to this resource. Exactly like in grid, but using API.

<com.pmease.quickbuild.model.Resource>
<id>17</id>
<name>Linux</name>
<providers>
<com.pmease.quickbuild.resource.ResourceProvider>
<nodeSelection class="com.pmease.quickbuild.resource.nodeselection.HashAttributeValueSelection">
<attribute>Project</attribute>
<operator>equals_ignore_case</operator>
<value>Linux</value>
</nodeSelection>
<resourceCount>1</resourceCount>
</com.pmease.quickbuild.resource.ResourceProvider>
</providers>
</com.pmease.quickbuild.model.Resource>