I have a java method that uses the PropertyCollector to traverse from an initial MOR to an array of MORs and get selected properties for each managed object - the data is returned as a list of maps. However one of the items of data that I want to get is the ID of the Managed Objects themselves. Is this possible?
This is the code I have so far:
/**
* Traverse from a root object to a sequence of objects, and get the properties of each one
*
* Parameters:
* root - the start object (e.g. a MOR to a HostSystem)
* traversal - the traversal to the related objects (e.g. "vm")
* traversalType - the MOR type of the objects traversed to (e.g. "VirtualMachine")
* properties - a Map of the properties to get (e.g. "runtime.powerState")
* to the name to use in the returned Map (e.g. "power_state")
*
* Return value:
* a list of Maps with the results, one for each MOR traversed to.
*
*/
public List<Map<String, Object>> traverseAndGetProps(ManagedObjectReference root,
String traversal,
String traverseType,
Map<String, String> properties)
throws ExecutionFailure
{
try {
// create a TraversalSpec from the root to the objects we want to get properties of
TraversalSpec ts = new TraversalSpec();
ts.setPath(traversal);
ts.setType(root.getType());
// Build a PropertySpec from the MO ref type and given property names
PropertySpec pSpec = new PropertySpec();
pSpec.setType(traverseType);
pSpec.setPathSet(properties.keySet().toArray(new String[0]));
// The object we want to start from which is the given MO ref
ObjectSpec oSpec = new ObjectSpec();
oSpec.setObj(root);
oSpec.setSkip(false);
oSpec.setSelectSet(new TraversalSpec[] {ts});
// Combine the property and object specs in the filter
PropertyFilterSpec pfSpec = new PropertyFilterSpec();
pfSpec.setPropSet(new PropertySpec[] { pSpec });
pfSpec.setObjectSet(new ObjectSpec[] { oSpec });
// Run the search
ObjectContent ocs[] = _service.retrieveProperties( // PRIV_REQ: System.Anonymous
_sic.getPropertyCollector(),
new PropertyFilterSpec[] { pfSpec });
if (ocs == null) {
// We don't really know why the call failed!
logger.error(_ipAddress + ": failed to get properties - null returned");
throw new ExecutionFailure(-1, "Failed to get properties - no data");
}
// Convert the object content into a list of hashtable (key/value pairs)
ArrayList<Map<String, Object>> results = new ArrayList<Map<String, Object>>();
for (ObjectContent oc: ocs) {
DynamicProperty[] dps = oc.getPropSet();
if (dps != null) {
Map<String, Object> result = new HashMap<String, Object>();
for (DynamicProperty dp: dps) {
if (dp != null) {
String key = properties.get(dp.getName());
Object val = dp.getVal();
if (val != null) {
result.put(key, val);
} else {
// skip over null values
logger.warn(_ipAddress + ": null value for " + dp.getName());
}
}
}
results.add(result);
}
}
return results;
} catch (Exception e) {
logger.error(_ipAddress + ": Failed to get properties: " + e);
throw new ExecutionFailure(-1, "Failed to get properties: " + e.getMessage());
}
}
