Java 类com.vmware.vim25.PropertySpec 实例源码

/**
 * Retrieve contents for a single object based on the property collector
 * registered with the service.
 *
 * @param collector
 *            Property collector registered with service
 * @param mobj
 *            Managed Object Reference to get contents for
 * @param properties
 *            names of properties of object to retrieve
 *
 * @return retrieved object contents
 * @throws RuntimeFaultFaultMsg
 * @throws InvalidPropertyFaultMsg
 */
private ObjectContent[] getObjectProperties(ManagedObjectReference mobj,
        String[] properties)
        throws InvalidPropertyFaultMsg, RuntimeFaultFaultMsg {
    if (mobj == null) {
        return null;
    }

    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.getPropSet().add(new PropertySpec());
    if ((properties == null || properties.length == 0)) {
        spec.getPropSet().get(0).setAll(Boolean.TRUE);
    } else {
        spec.getPropSet().get(0).setAll(Boolean.FALSE);
    }
    spec.getPropSet().get(0).setType(mobj.getType());
    spec.getPropSet().get(0).getPathSet().addAll(Arrays.asList(properties));
    spec.getObjectSet().add(new ObjectSpec());
    spec.getObjectSet().get(0).setObj(mobj);
    spec.getObjectSet().get(0).setSkip(Boolean.FALSE);
    List<PropertyFilterSpec> listpfs = new ArrayList<PropertyFilterSpec>(1);
    listpfs.add(spec);
    List<ObjectContent> listobjcont = retrievePropertiesAllObjects(listpfs);
    return listobjcont.toArray(new ObjectContent[listobjcont.size()]);
}

private PropertyFilterSpec propertyFilterSpec(ManagedObjectReference objmor,
        String[] filterProps, String[] propsToMatch) {
    PropertyFilterSpec spec = new PropertyFilterSpec();
    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(objmor);
    oSpec.setSkip(Boolean.FALSE);
    spec.getObjectSet().add(oSpec);

    Set<String> uniqPropSet = new HashSet<>(Arrays.asList(filterProps));
    uniqPropSet.addAll(Arrays.asList(propsToMatch));

    PropertySpec pSpec = new PropertySpec();
    pSpec.getPathSet().addAll(new ArrayList<>(uniqPropSet));
    pSpec.setType(objmor.getType());
    spec.getPropSet().add(pSpec);
    return spec;
}

/**
 * Retrieve contents for a single object based on the property collector
 * registered with the service.
 *
 * @param collector
 *            Property collector registered with service
 * @param mobj
 *            Managed Object Reference to get contents for
 * @param properties
 *            names of properties of object to retrieve
 *
 * @return retrieved object contents
 * @throws RuntimeFaultFaultMsg
 * @throws InvalidPropertyFaultMsg
 */
private ObjectContent[] getObjectProperties(ManagedObjectReference mobj,
        String[] properties)
        throws InvalidPropertyFaultMsg, RuntimeFaultFaultMsg {
    if (mobj == null) {
        return null;
    }

    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.getPropSet().add(new PropertySpec());
    if ((properties == null || properties.length == 0)) {
        spec.getPropSet().get(0).setAll(Boolean.TRUE);
    } else {
        spec.getPropSet().get(0).setAll(Boolean.FALSE);
    }
    spec.getPropSet().get(0).setType(mobj.getType());
    spec.getPropSet().get(0).getPathSet().addAll(Arrays.asList(properties));
    spec.getObjectSet().add(new ObjectSpec());
    spec.getObjectSet().get(0).setObj(mobj);
    spec.getObjectSet().get(0).setSkip(Boolean.FALSE);
    List<PropertyFilterSpec> listpfs = new ArrayList<PropertyFilterSpec>(1);
    listpfs.add(spec);
    List<ObjectContent> listobjcont = retrievePropertiesAllObjects(listpfs);
    return listobjcont.toArray(new ObjectContent[listobjcont.size()]);
}

private static void watchManagedObject(ManagedObject mos, String[] propNames)
{
    PropertyFilterSpec pfs = new PropertyFilterSpec();

    ObjectSpec[] oss = new ObjectSpec[1];
    oss[0] = new ObjectSpec();
    oss[0].setObj(mos.getMOR());
    pfs.setObjectSet(oss);

    PropertySpec ps = new PropertySpec();
    ps.setType(mos.getMOR().getType());
    ps.setPathSet(propNames);
    pfs.setPropSet(new PropertySpec[] { ps });

    try
    {
        PropertyFilter pf = propColl.createFilter(pfs, true); //report only nesting properties, not enclosing ones.
        if (pf != null) {
            watchedFilters.put(mos, pf);
        }
    } catch(RemoteException re)
    {
        throw new RuntimeException(re);
    }

}

public void watch(ManagedObject[] mos, String[] propNames)
{
    PropertyFilterSpec pfs = new PropertyFilterSpec();

    ObjectSpec[] oss = new ObjectSpec[mos.length];
    for(int i=0; i<oss.length; i++)
    {
        oss[i] = new ObjectSpec();
        oss[i].setObj(mos[i].getMOR());
    }
    pfs.setObjectSet(oss);

    PropertySpec ps = new PropertySpec();
    ps.setType(mos[0].getMOR().getType());
    ps.setPathSet(propNames);
    pfs.setPropSet(new PropertySpec[] { ps });

    watch(pfs);
}

public List<ObjectContent> getDatastorePropertiesOnHostDatastoreSystem(String[] propertyPaths) throws Exception {

        PropertySpec pSpec = new PropertySpec();
        pSpec.setType("Datastore");
        pSpec.getPathSet().addAll(Arrays.asList(propertyPaths));

        TraversalSpec hostDsSys2DatastoreTraversal = new TraversalSpec();
        hostDsSys2DatastoreTraversal.setType("HostDatastoreSystem");
        hostDsSys2DatastoreTraversal.setPath("datastore");
        hostDsSys2DatastoreTraversal.setName("hostDsSys2DatastoreTraversal");

        ObjectSpec oSpec = new ObjectSpec();
        oSpec.setObj(_mor);
        oSpec.setSkip(Boolean.TRUE);
        oSpec.getSelectSet().add(hostDsSys2DatastoreTraversal);

        PropertyFilterSpec pfSpec = new PropertyFilterSpec();
        pfSpec.getPropSet().add(pSpec);
        pfSpec.getObjectSet().add(oSpec);
        List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
        pfSpecArr.add(pfSpec);

        return _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);
    }

public List<ObjectContent> getDatastorePropertiesOnDatacenter(String[] propertyPaths) throws Exception {

        PropertySpec pSpec = new PropertySpec();
        pSpec.setType("Datastore");
        pSpec.getPathSet().addAll(Arrays.asList(propertyPaths));

        TraversalSpec dc2DatastoreTraversal = new TraversalSpec();
        dc2DatastoreTraversal.setType("Datacenter");
        dc2DatastoreTraversal.setPath("datastore");
        dc2DatastoreTraversal.setName("dc2DatastoreTraversal");

        ObjectSpec oSpec = new ObjectSpec();
        oSpec.setObj(_mor);
        oSpec.setSkip(Boolean.TRUE);
        oSpec.getSelectSet().add(dc2DatastoreTraversal);

        PropertyFilterSpec pfSpec = new PropertyFilterSpec();
        pfSpec.getPropSet().add(pSpec);
        pfSpec.getObjectSet().add(oSpec);
        List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
        pfSpecArr.add(pfSpec);

        return _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    }

private List<ObjectContent> retrieveMoRefProperties(ManagedObjectReference mObj, List<String> props) throws Exception {
    PropertySpec pSpec = new PropertySpec();
    pSpec.setAll(false);
    pSpec.setType(mObj.getType());
    pSpec.getPathSet().addAll(props);

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(mObj);
    oSpec.setSkip(false);
    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.getPropSet().add(pSpec);
    spec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> specArr = new ArrayList<PropertyFilterSpec>();
    specArr.add(spec);

    return vimPort.retrieveProperties(getPropCol(), specArr);
}

public PropertyFilterSpec createVmFilterSpec(ManagedObjectReference dc) {
    ObjectSpec ospec = new ObjectSpec();
    ospec.setObj(dc);
    ospec.setSkip(false);

    ospec.getSelectSet().addAll(buildFullTraversal());

    PropertySpec vmSpec = new PropertySpec();
    vmSpec.setType(VimNames.TYPE_VM);
    vmSpec.getPathSet().addAll(Arrays.asList(
            VimPath.vm_config_name,
            VimPath.vm_config_instanceUuid,
            VimPath.vm_config_changeVersion,
            VimPath.vm_config_hardware_device,
            VimPath.vm_config_hardware_memoryMB,
            VimPath.vm_summary_config_numCpu,
            VimPath.vm_config_template,
            VimPath.vm_runtime_host,
            VimPath.vm_guest_net,
            VimPath.vm_guest_hostName,
            VimPath.vm_runtime_powerState,
            VimPath.vm_runtime_maxCpuUsage,
            VimPath.vm_runtime_maxMemoryUsage,
            VimPath.vm_summary_guest_ipAddress,
            VimPath.vm_summary_guest_hostName,
            VimPath.vm_snapshot_rootSnapshotList
    ));

    PropertyFilterSpec filterSpec = new PropertyFilterSpec();
    filterSpec.getObjectSet().add(ospec);
    filterSpec.getPropSet().add(vmSpec);

    return filterSpec;
}

private List<ObjectContent> ancestrySet(ManagedObjectReference ref)
        throws InvalidPropertyFaultMsg, RuntimeFaultFaultMsg {
    ObjectSpec ospec = new ObjectSpec();
    ospec.setObj(ref);
    ospec.setSkip(false);

    TraversalSpec tspec = new TraversalSpec();
    tspec.setSkip(false);
    tspec.setPath("parent");
    tspec.setType("ManagedEntity");
    tspec.setName("traverseParent");

    SelectionSpec selSpec = new SelectionSpec();
    selSpec.setName("traverseParent");

    tspec.getSelectSet().add(selSpec);

    ospec.getSelectSet().add(tspec);

    PropertySpec pspec = new PropertySpec();
    pspec.setType("ManagedEntity");
    pspec.getPathSet().add("name");
    pspec.getPathSet().add("parent");

    PropertyFilterSpec filter = new PropertyFilterSpec();
    filter.getObjectSet().add(ospec);
    filter.getPropSet().add(pspec);

    return this.connection.getVimPort()
            .retrieveProperties(this.connection.getServiceContent().getPropertyCollector(),
                    Collections.singletonList(filter));

}

private List<Element> listResourcePool()
        throws FinderException, InvalidPropertyFaultMsg, RuntimeFaultFaultMsg {
    ObjectSpec ospec = new ObjectSpec();
    ospec.setObj(this.start);
    ospec.setSkip(true);

    for (String f : new String[] { "resourcePool" }) {
        TraversalSpec tspec = new TraversalSpec();
        tspec.setPath(f);
        tspec.setSkip(false);
        tspec.setType("ResourcePool");

        ospec.getSelectSet().add(tspec);
    }

    List<PropertySpec> pspecs = new ArrayList<>();
    for (String t : new String[] { "ResourcePool" }) {
        PropertySpec pspec = new PropertySpec();
        pspec.setType(t);
        pspec.getPathSet().add("name");

        pspecs.add(pspec);
    }

    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.getObjectSet().add(ospec);
    spec.getPropSet().addAll(pspecs);

    return callPropertyCollectorAndConvert(spec);
}

private List<Element> listComputeResource()
        throws FinderException, InvalidPropertyFaultMsg, RuntimeFaultFaultMsg {
    ObjectSpec ospec = new ObjectSpec();
    ospec.setSkip(true);
    ospec.setObj(this.start);

    for (String f : new String[] { "host", "resourcePool" }) {
        TraversalSpec tspec = new TraversalSpec();
        tspec.setPath(f);
        tspec.setType("ComputeResource");
        tspec.setSkip(false);

        ospec.getSelectSet().add(tspec);
    }

    PropertyFilterSpec filter = new PropertyFilterSpec();
    filter.getObjectSet().add(ospec);

    for (String t : new String[] { "HostSystem", "ResourcePool" }) {
        PropertySpec pspec = new PropertySpec();
        pspec.setType(t);
        pspec.getPathSet().add("name");

        filter.getPropSet().add(pspec);
    }

    return callPropertyCollectorAndConvert(filter);
}

private List<Element> listDatacenter()
        throws InvalidPropertyFaultMsg, RuntimeFaultFaultMsg, FinderException {
    ObjectSpec ospec = new ObjectSpec();
    ospec.setObj(this.start);
    ospec.setSkip(true);

    // Include every datastore folder in the select set
    String[] fields = {
            "vmFolder",
            "hostFolder",
            "datastoreFolder",
            "networkFolder" };

    for (String f : fields) {
        TraversalSpec tspec = new TraversalSpec();
        tspec.setPath(f);
        tspec.setSkip(false);
        tspec.setType("Datacenter");

        ospec.getSelectSet().add(tspec);
    }

    PropertySpec pspec = new PropertySpec();
    pspec.setType("Folder");
    pspec.getPathSet().add("name");

    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.getObjectSet().add(ospec);
    spec.getPropSet().add(pspec);

    return callPropertyCollectorAndConvert(spec);
}

private void init() {
    if (this.propSet == null) {
        this.propSet = new ArrayList<PropertySpec>();
    }
    if (this.objectSet == null) {
        this.objectSet = new ArrayList<ObjectSpec>();
    }
}

private PropertyFilterSpec propertyFilterSpec(ManagedObjectReference objmor,
        String[] filterProps) {
    PropertyFilterSpec spec = new PropertyFilterSpec();
    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(objmor);
    oSpec.setSkip(Boolean.FALSE);
    spec.getObjectSet().add(oSpec);

    PropertySpec pSpec = new PropertySpec();
    pSpec.getPathSet().addAll(Arrays.asList(filterProps));
    pSpec.setType(objmor.getType());
    spec.getPropSet().add(pSpec);
    return spec;
}

private void init() {
    if (propSet == null) {
        propSet = new ArrayList<PropertySpec>();
    }
    if(objectSet == null) {
        objectSet = new ArrayList<ObjectSpec>();
    }
}

private void init() {
    if (propSet == null) {
        propSet = new ArrayList<PropertySpec>();
    }
    if(objectSet == null) {
        objectSet = new ArrayList<ObjectSpec>();
    }
}

private PropertyFilterSpec createEventFilterSpec(EventHistoryCollector collector)
        throws Exception
{
    // Set up a PropertySpec to use the latestPage attribute
    // of the EventHistoryCollector
    PropertySpec propSpec = new PropertySpec();
    propSpec.setAll(new Boolean(false));
    propSpec.setPathSet(new String[] { "latestPage" });
    propSpec.setType(collector.getMOR().getType());

    // PropertySpecs are wrapped in a PropertySpec array
    PropertySpec[] propSpecAry = new PropertySpec[] { propSpec };

    // Set up an ObjectSpec with the above PropertySpec for the
    // EventHistoryCollector we just created
    // as the Root or Starting Object to get Attributes for.
    ObjectSpec objSpec = new ObjectSpec();
    objSpec.setObj(collector.getMOR());
    objSpec.setSkip(new Boolean(false));

    // Get Event objects in "latestPage" from "EventHistoryCollector"
    // and no "traversal" further, so, no SelectionSpec is specified
    objSpec.setSelectSet(new SelectionSpec[] {});

    // ObjectSpecs are wrapped in an ObjectSpec array
    ObjectSpec[] objSpecAry = new ObjectSpec[] { objSpec };

    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.setPropSet(propSpecAry);
    spec.setObjectSet(objSpecAry);
    return spec;
}

private PropertyFilterSpec createEventFilterSpec()
{
    // Set up a PropertySpec to use the latestPage attribute
    // of the EventHistoryCollector

    PropertySpec propSpec = new PropertySpec();
    propSpec.setAll(new Boolean(false));
    propSpec.setPathSet(new String[] { "latestPage" });
    propSpec.setType(_eventHistoryCollector.getMOR().getType());

    // PropertySpecs are wrapped in a PropertySpec array
    PropertySpec[] propSpecAry = new PropertySpec[] { propSpec };

    // Set up an ObjectSpec with the above PropertySpec for the
    // EventHistoryCollector we just created
    // as the Root or Starting Object to get Attributes for.
    ObjectSpec objSpec = new ObjectSpec();
    objSpec.setObj(_eventHistoryCollector.getMOR());
    objSpec.setSkip(new Boolean(false));

    // Get Event objects in "latestPage" from "EventHistoryCollector"
    // and no "traversl" further, so, no SelectionSpec is specified
    objSpec.setSelectSet(new SelectionSpec[] {});

    // ObjectSpecs are wrapped in an ObjectSpec array
    ObjectSpec[] objSpecAry = new ObjectSpec[] { objSpec };

    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.setPropSet(propSpecAry);
    spec.setObjectSet(objSpecAry);
    return spec;
}

protected ObjectContent retrieveObjectProperties(String[] properties) 
{
    ObjectSpec oSpec = PropertyCollectorUtil.creatObjectSpec(
            getMOR(), Boolean.FALSE, null);

    PropertySpec pSpec = PropertyCollectorUtil.createPropertySpec(
            getMOR().getType(),
            properties == null || properties.length == 0, //if true, all props of this obj are to be read regardless of propName
            properties);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.setObjectSet(new ObjectSpec[] { oSpec });
    pfSpec.setPropSet(new PropertySpec[] { pSpec });

    PropertyCollector pc = getServerConnection().getServiceInstance().getPropertyCollector();

    ObjectContent[] objs;
    try
    {
        objs = pc.retrieveProperties(new PropertyFilterSpec[] { pfSpec });
    } catch(Exception e)
    {
        throw new RuntimeException(e);
    }

    if (objs == null || objs[0]==null)
        return null;
    else
        return objs[0];
}

/**
 * Retrieve contents for a single object based on the property collector
 * registered with the service.
 *
 * @param mor        Managed Object Reference to get contents for
 * @param properties names of properties of object to retrieve
 * @return retrieved object contents
 */
@NotNull
public static ObjectContent[] getObjectProperties(ConnectionResources connectionResources,
                                                  ManagedObjectReference mor,
                                                  String[] properties)
        throws RuntimeFaultFaultMsg, InvalidPropertyFaultMsg {
    if (mor == null) {
        return new ObjectContent[0];
    }

    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.getPropSet().add(new PropertySpec());

    if ((properties == null || properties.length == 0)) {
        spec.getPropSet().get(0).setAll(true);
    } else {
        spec.getPropSet().get(0).setAll(false);
    }

    spec.getPropSet().get(0).setType(mor.getType());
    spec.getPropSet().get(0).getPathSet().addAll(Arrays.asList(properties));
    spec.getObjectSet().add(new ObjectSpec());
    spec.getObjectSet().get(0).setObj(mor);
    spec.getObjectSet().get(0).setSkip(false);

    List<PropertyFilterSpec> propertyFilterSpecs = new ArrayList<>(1);
    propertyFilterSpecs.add(spec);
    List<ObjectContent> objectContentList = retrievePropertiesAllObjects(connectionResources, propertyFilterSpecs);

    return objectContentList.toArray(new ObjectContent[objectContentList.size()]);
}

private PropertyFilterSpec propertyFilterSpec(ManagedObjectReference objmor, String[] filterProps) {
    ObjectSpec objSpec = new ObjectSpec();
    objSpec.setObj(objmor);
    objSpec.setSkip(false);

    PropertySpec propSpec = new PropertySpec();
    propSpec.getPathSet().addAll(Arrays.asList(filterProps));
    propSpec.setType(objmor.getType());

    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.getObjectSet().add(objSpec);
    spec.getPropSet().add(propSpec);

    return spec;
}

public ManagedObjectReference getNetworkMor(String portGroupName) throws Exception {
    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("Network");
    pSpec.getPathSet().add("summary.name");

    TraversalSpec host2NetworkTraversal = new TraversalSpec();
    host2NetworkTraversal.setType("HostSystem");
    host2NetworkTraversal.setPath("network");
    host2NetworkTraversal.setName("host2NetworkTraversal");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(host2NetworkTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> ocs = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    if (ocs != null) {
        for (ObjectContent oc : ocs) {
            List<DynamicProperty> props = oc.getPropSet();
            if (props != null) {
                for (DynamicProperty prop : props) {
                    if (prop.getVal().equals(portGroupName))
                        return oc.getObj();
                }
            }
        }
    }
    return null;
}

@Override
public ObjectContent[] getVmPropertiesOnHyperHost(String[] propertyPaths) throws Exception {
    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() for VM properties. target MOR: " + _mor.getValue() + ", properties: " +
                new Gson().toJson(propertyPaths));

    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("VirtualMachine");
    pSpec.getPathSet().addAll(Arrays.asList(propertyPaths));

    TraversalSpec host2VmTraversal = new TraversalSpec();
    host2VmTraversal.setType("HostSystem");
    host2VmTraversal.setPath("vm");
    host2VmTraversal.setName("host2VmTraversal");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(host2VmTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> properties = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() done");
    return properties.toArray(new ObjectContent[properties.size()]);
}

@Override
public ObjectContent[] getDatastorePropertiesOnHyperHost(String[] propertyPaths) throws Exception {
    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() on Datastore properties. target MOR: " + _mor.getValue() + ", properties: " +
                new Gson().toJson(propertyPaths));

    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("Datastore");
    pSpec.getPathSet().addAll(Arrays.asList(propertyPaths));

    TraversalSpec host2DatastoreTraversal = new TraversalSpec();
    host2DatastoreTraversal.setType("HostSystem");
    host2DatastoreTraversal.setPath("datastore");
    host2DatastoreTraversal.setName("host2DatastoreTraversal");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(host2DatastoreTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> properties = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() done");
    return properties.toArray(new ObjectContent[properties.size()]);
}

public List<ObjectContent> getHostPropertiesOnDatacenterHostFolder(String[] propertyPaths) throws Exception {
    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("HostSystem");
    pSpec.getPathSet().addAll(Arrays.asList(propertyPaths));

    TraversalSpec computeResource2HostTraversal = new TraversalSpec();
    computeResource2HostTraversal.setType("ComputeResource");
    computeResource2HostTraversal.setPath("host");
    computeResource2HostTraversal.setName("computeResource2HostTraversal");

    SelectionSpec recurseFolders = new SelectionSpec();
    recurseFolders.setName("folder2childEntity");

    TraversalSpec folder2childEntity = new TraversalSpec();
    folder2childEntity.setType("Folder");
    folder2childEntity.setPath("childEntity");
    folder2childEntity.setName(recurseFolders.getName());
    folder2childEntity.getSelectSet().add(recurseFolders);
    folder2childEntity.getSelectSet().add(computeResource2HostTraversal);

    TraversalSpec dc2HostFolderTraversal = new TraversalSpec();
    dc2HostFolderTraversal.setType("Datacenter");
    dc2HostFolderTraversal.setPath("hostFolder");
    dc2HostFolderTraversal.setName("dc2HostFolderTraversal");
    dc2HostFolderTraversal.getSelectSet().add(folder2childEntity);

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(dc2HostFolderTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    return _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

}

public List<ObjectContent> getVmPropertiesOnDatacenterVmFolder(String[] propertyPaths) throws Exception {
    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("VirtualMachine");
    pSpec.getPathSet().addAll(Arrays.asList(propertyPaths));

    TraversalSpec dc2VmFolderTraversal = new TraversalSpec();
    dc2VmFolderTraversal.setType("Datacenter");
    dc2VmFolderTraversal.setPath("vmFolder");
    dc2VmFolderTraversal.setName("dc2VmFolderTraversal");

    SelectionSpec recurseFolders = new SelectionSpec();
    recurseFolders.setName("folder2childEntity");

    TraversalSpec folder2childEntity = new TraversalSpec();
    folder2childEntity.setType("Folder");
    folder2childEntity.setPath("childEntity");
    folder2childEntity.setName(recurseFolders.getName());
    folder2childEntity.getSelectSet().add(recurseFolders);
    dc2VmFolderTraversal.getSelectSet().add(folder2childEntity);

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(dc2VmFolderTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    return _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);
}

public static Pair<DatacenterMO, String> getOwnerDatacenter(VmwareContext context, ManagedObjectReference morEntity) throws Exception {

        PropertySpec pSpec = new PropertySpec();
        pSpec.setType("Datacenter");
        pSpec.getPathSet().add("name");

        TraversalSpec entityParentTraversal = new TraversalSpec();
        entityParentTraversal.setType("ManagedEntity");
        entityParentTraversal.setPath("parent");
        entityParentTraversal.setName("entityParentTraversal");
        SelectionSpec selSpec = new SelectionSpec();
        selSpec.setName("entityParentTraversal");
        entityParentTraversal.getSelectSet().add(selSpec);

        ObjectSpec oSpec = new ObjectSpec();
        oSpec.setObj(morEntity);
        oSpec.setSkip(Boolean.TRUE);
        oSpec.getSelectSet().add(entityParentTraversal);

        PropertyFilterSpec pfSpec = new PropertyFilterSpec();
        pfSpec.getPropSet().add(pSpec);
        pfSpec.getObjectSet().add(oSpec);
        List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
        pfSpecArr.add(pfSpec);

        List<ObjectContent> ocs = context.getService().retrieveProperties(context.getPropertyCollector(), pfSpecArr);

        assert (ocs != null && ocs.size() > 0);
        assert (ocs.get(0).getObj() != null);
        assert (ocs.get(0).getPropSet().get(0) != null);
        assert (ocs.get(0).getPropSet().get(0).getVal() != null);

        String dcName = ocs.get(0).getPropSet().get(0).getVal().toString();
        return new Pair<DatacenterMO, String>(new DatacenterMO(context, ocs.get(0).getObj()), dcName);
    }

public ManagedObjectReference getDvPortGroupMor(String dvPortGroupName) throws Exception {
    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("DistributedVirtualPortgroup");
    pSpec.getPathSet().add("name");

    TraversalSpec datacenter2DvPortGroupTraversal = new TraversalSpec();
    datacenter2DvPortGroupTraversal.setType("Datacenter");
    datacenter2DvPortGroupTraversal.setPath("network");
    datacenter2DvPortGroupTraversal.setName("datacenter2DvPortgroupTraversal");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(datacenter2DvPortGroupTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> ocs = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    if (ocs != null) {
        for (ObjectContent oc : ocs) {
            List<DynamicProperty> props = oc.getPropSet();
            if (props != null) {
                for (DynamicProperty prop : props) {
                    if (prop.getVal().equals(dvPortGroupName))
                        return oc.getObj();
                }
            }
        }
    }
    return null;
}

public Pair<DatastoreMO, String> getOwnerDatastore(String dsFullPath) throws Exception {
    String dsName = DatastoreFile.getDatastoreNameFromPath(dsFullPath);

    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("Datastore");
    pSpec.getPathSet().add("name");

    TraversalSpec vmDatastoreTraversal = new TraversalSpec();
    vmDatastoreTraversal.setType("VirtualMachine");
    vmDatastoreTraversal.setPath("datastore");
    vmDatastoreTraversal.setName("vmDatastoreTraversal");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(vmDatastoreTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> ocs = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    if (ocs != null) {
        for (ObjectContent oc : ocs) {
            DynamicProperty prop = oc.getPropSet().get(0);
            if (prop.getVal().toString().equals(dsName)) {
                return new Pair<DatastoreMO, String>(new DatastoreMO(_context, oc.getObj()), dsName);
            }
        }
    }

    return null;
}

public VirtualMachineFileLayoutEx getFileLayout() throws Exception {
    VirtualMachineFileLayoutEx fileLayout = null;
    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("VirtualMachine");
    pSpec.getPathSet().add("layoutEx");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.FALSE);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> ocs = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    if (ocs != null) {
        for (ObjectContent oc : ocs) {
            List<DynamicProperty> props = oc.getPropSet();
            if (props != null) {
                for (DynamicProperty prop : props) {
                    if (prop.getName().equals("layoutEx")) {
                        fileLayout = (VirtualMachineFileLayoutEx)prop.getVal();
                        break;
                    }
                }
            }
        }
    }

    return fileLayout;
}

public String[] getNetworks() throws Exception {
    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("Network");
    pSpec.getPathSet().add("name");

    TraversalSpec vm2NetworkTraversal = new TraversalSpec();
    vm2NetworkTraversal.setType("VirtualMachine");
    vm2NetworkTraversal.setPath("network");
    vm2NetworkTraversal.setName("vm2NetworkTraversal");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(vm2NetworkTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> ocs = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    List<String> networks = new ArrayList<String>();
    if (ocs != null && ocs.size() > 0) {
        for (ObjectContent oc : ocs) {
            networks.add(oc.getPropSet().get(0).getVal().toString());
        }
    }
    return networks.toArray(new String[0]);
}

@Override
public ObjectContent[] getVmPropertiesOnHyperHost(String[] propertyPaths) throws Exception {
    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() for VM properties. target MOR: " + _mor.getValue() + ", properties: " + new Gson().toJson(propertyPaths));

    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("VirtualMachine");
    pSpec.getPathSet().addAll(Arrays.asList(propertyPaths));

    TraversalSpec host2VmFolderTraversal = new TraversalSpec();
    host2VmFolderTraversal.setType("HostSystem");
    host2VmFolderTraversal.setPath("vm");
    host2VmFolderTraversal.setName("host2VmFolderTraversal");

    TraversalSpec cluster2HostFolderTraversal = new TraversalSpec();
    cluster2HostFolderTraversal.setType("ClusterComputeResource");
    cluster2HostFolderTraversal.setPath("host");
    cluster2HostFolderTraversal.setName("cluster2HostFolderTraversal");
    cluster2HostFolderTraversal.getSelectSet().add(host2VmFolderTraversal);

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(getMor());
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(cluster2HostFolderTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> properties = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() done");
    return properties.toArray(new ObjectContent[properties.size()]);
}

@Override
public ObjectContent[] getDatastorePropertiesOnHyperHost(String[] propertyPaths) throws Exception {
    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() on Datastore properties. target MOR: " + _mor.getValue() + ", properties: " + new Gson().toJson(propertyPaths));

    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("Datastore");
    pSpec.getPathSet().addAll(Arrays.asList(propertyPaths));

    TraversalSpec cluster2DatastoreTraversal = new TraversalSpec();
    cluster2DatastoreTraversal.setType("ClusterComputeResource");
    cluster2DatastoreTraversal.setPath("datastore");
    cluster2DatastoreTraversal.setName("cluster2DatastoreTraversal");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(cluster2DatastoreTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> properties = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() done");
    return properties.toArray(new ObjectContent[properties.size()]);
}

public ObjectContent[] getHostPropertiesOnCluster(String[] propertyPaths) throws Exception {
    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() on Host properties. target MOR: " + _mor.getValue() + ", properties: " + new Gson().toJson(propertyPaths));

    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("HostSystem");
    pSpec.getPathSet().addAll(Arrays.asList(propertyPaths));

    TraversalSpec cluster2HostTraversal = new TraversalSpec();
    cluster2HostTraversal.setType("ClusterComputeResource");
    cluster2HostTraversal.setPath("host");
    cluster2HostTraversal.setName("cluster2HostTraversal");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(_mor);
    oSpec.setSkip(Boolean.TRUE);
    oSpec.getSelectSet().add(cluster2HostTraversal);

    PropertyFilterSpec pfSpec = new PropertyFilterSpec();
    pfSpec.getPropSet().add(pSpec);
    pfSpec.getObjectSet().add(oSpec);

    List<PropertyFilterSpec> pfSpecArr = new ArrayList<PropertyFilterSpec>();
    pfSpecArr.add(pfSpec);

    List<ObjectContent> properties = _context.getService().retrieveProperties(_context.getPropertyCollector(), pfSpecArr);

    if (s_logger.isTraceEnabled())
        s_logger.trace("vCenter API trace - retrieveProperties() done");
    return properties.toArray(new ObjectContent[properties.size()]);
}

public boolean validate() {
    //
    // There is no official API to validate an open vCenter API session. This is hacking way to tell if
    // an open vCenter API session is still valid for making calls.
    //
    // It will give false result if there really does not exist data-center in the inventory, however, I consider
    // this really is not possible in production deployment
    //

    // Create PropertySpecs
    PropertySpec pSpec = new PropertySpec();
    pSpec.setType("Datacenter");
    pSpec.setAll(false);
    pSpec.getPathSet().add("name");

    ObjectSpec oSpec = new ObjectSpec();
    oSpec.setObj(getRootFolder());
    oSpec.setSkip(false);
    oSpec.getSelectSet().addAll(constructCompleteTraversalSpec());

    PropertyFilterSpec spec = new PropertyFilterSpec();
    spec.getPropSet().add(pSpec);
    spec.getObjectSet().add(oSpec);
    List<PropertyFilterSpec> specArr = new ArrayList<PropertyFilterSpec>();
    specArr.add(spec);

    try {
        List<ObjectContent> ocary = vimPort.retrieveProperties(getPropCol(), specArr);
        if (ocary != null && ocary.size() > 0)
            return true;
    } catch (Exception e) {
        return false;
    }

    return false;
}

/**
 * Assembles the property specification required to retrieve inventory
 * information.
 */
public List<PropertySpec> buildInventoryPropertySpec() {
    PropertySpec pSpecDatacenter = new PropertySpec();
    pSpecDatacenter.setType("Datacenter");
    pSpecDatacenter.getPathSet().add("hostFolder");

    PropertySpec pSpecHost = new PropertySpec();
    pSpecHost.setType("HostSystem");
    pSpecHost.getPathSet().add("name");
    // ManagedObjectReference[] to a Datastore[]
    // A collection of references to the subset of datastore objects in the
    // datacenter that are available in this HostSystem.
    pSpecHost.getPathSet().add("datastore");

    pSpecHost.getPathSet().add("runtime.connectionState"); // connected,
                                                           // disconnected,
                                                           // notResponding
    pSpecHost.getPathSet().add("runtime.powerState"); // poweredOff,
                                                      // poweredOn, standBy,
                                                      // unknown
    pSpecHost.getPathSet().add("runtime.healthSystemRuntime");

    pSpecHost.getPathSet().add("summary.hardware.cpuMhz");
    pSpecHost.getPathSet().add("summary.hardware.memorySize");
    pSpecHost.getPathSet().add("summary.hardware.numCpuCores");
    pSpecHost.getPathSet().add("summary.quickStats.distributedCpuFairness");
    pSpecHost.getPathSet()
            .add("summary.quickStats.distributedMemoryFairness");
    pSpecHost.getPathSet().add("summary.quickStats.overallCpuUsage");
    pSpecHost.getPathSet().add("summary.quickStats.overallMemoryUsage");

    PropertySpec pSpecVM = new PropertySpec();
    pSpecVM.setType("VirtualMachine");
    pSpecVM.getPathSet().add("name");
    pSpecVM.getPathSet().add("runtime.host");
    pSpecVM.getPathSet().add("summary.config.template");
    pSpecVM.getPathSet().add("summary.config.numCpu");
    pSpecVM.getPathSet().add("summary.config.memorySizeMB");

    PropertySpec pSpecDataStore = new PropertySpec();
    pSpecDataStore.setType("Datastore");
    // DatastoreHostMount[] Hosts attached to this datastore.
    pSpecDataStore.getPathSet().add("host");
    pSpecDataStore.getPathSet().add("summary.name");
    pSpecDataStore.getPathSet().add("summary.capacity");
    pSpecDataStore.getPathSet().add("summary.freeSpace");

    ArrayList<PropertySpec> result = new ArrayList<PropertySpec>();
    result.add(pSpecDatacenter);
    result.add(pSpecHost);
    result.add(pSpecVM);
    result.add(pSpecDataStore);
    return result;
}

private List<Element> listFolder()
        throws InvalidPropertyFaultMsg, RuntimeFaultFaultMsg, FinderException {
    PropertyFilterSpec spec = new PropertyFilterSpec();

    ObjectSpec objSpec = new ObjectSpec();
    objSpec.setObj(this.start);

    TraversalSpec selectionSpec = new TraversalSpec();
    selectionSpec.setPath("childEntity");
    selectionSpec.setType("Folder");
    selectionSpec.setSkip(false);

    objSpec.getSelectSet().add(selectionSpec);

    spec.getObjectSet().add(objSpec);

    // Retrieve all objects that we can deal with
    String[] childTypes = {
            "Folder",
            "Datacenter",
            "VirtualMachine",
            "Network",
            "ComputeResource",
            "ClusterComputeResource",
            "Datastore"};

    for (String t : childTypes) {
        PropertySpec pspec = new PropertySpec();
        pspec.setType(t);

        pspec.getPathSet().add("name");

        // Additional basic properties.
        if (t.equals("ComputeResource") || t.equals("ClusterComputeResource")) {
            // The ComputeResource and ClusterComputeResource are dereferenced in
            // the ResourcePoolFlag. Make sure they always have their resourcePool
            // field populated.
            pspec.getPathSet().add("resourcePool");
        }

        spec.getPropSet().add(pspec);
    }

    return callPropertyCollectorAndConvert(spec);
}

public List<Element> listAllDatacenters() throws InvalidPropertyFaultMsg, RuntimeFaultFaultMsg {
    PropertyFilterSpec spec = new PropertyFilterSpec();

    ObjectSpec ospec = new ObjectSpec();
    ospec.setObj(connection.getServiceContent().getRootFolder());
    ospec.setSkip(false);
    spec.getObjectSet().add(ospec);

    TraversalSpec traverseFolders = new TraversalSpec();
    traverseFolders.setPath("childEntity");
    traverseFolders.setSkip(false);
    String traversalName = "folder2child";
    traverseFolders.setName(traversalName);
    traverseFolders.setType(VimNames.TYPE_FOLDER);

    SelectionSpec selSpec = new SelectionSpec();
    selSpec.setName(traversalName);
    traverseFolders.getSelectSet().add(selSpec);

    ospec.getSelectSet().add(traverseFolders);

    for (String t : new String[] { VimNames.TYPE_FOLDER, VimNames.TYPE_DATACENTER }) {
        PropertySpec pspec = new PropertySpec();
        pspec.setType(t);
        pspec.getPathSet().add(VimNames.PROPERTY_NAME);
        pspec.getPathSet().add(VimNames.PROPERTY_PARENT);

        spec.getPropSet().add(pspec);
    }

    List<ObjectContent> ocs = retrieveProperties(spec);
    List<Element> res = new ArrayList<>();

    for (ObjectContent oc : ocs) {
        if (oc.getObj().getType().equals(VimNames.TYPE_FOLDER)) {
            continue;
        }

        String parentPath = buildPathToParent(prop(oc, VimNames.PROPERTY_PARENT), ocs);
        res.add(Element.make(oc.getObj(), parentPath + "/" + prop(oc, VimNames.PROPERTY_NAME)));
    }

    return res;
}

/**
 * Get the MOR of the Virtual Machine by its name.
 *
 * @param vmName           The name of the Virtual Machine
 * @param propCollectorRef
 * @return The Managed Object reference for this VM
 * @throws RuntimeFaultFaultMsg
 * @throws InvalidPropertyFaultMsg
 */
public ManagedObjectReference vmByVMname(
        final String vmName, final ManagedObjectReference propCollectorRef
) throws InvalidPropertyFaultMsg, RuntimeFaultFaultMsg {

    init();

    ManagedObjectReference rootFolder = this.serviceContent.getRootFolder();
    TraversalSpec tSpec = getVMTraversalSpec();
    // Create Property Spec
    PropertySpec propertySpec = new PropertySpecBuilder()
            .all(Boolean.FALSE)
            .pathSet("name")
            .type("VirtualMachine");

    // Now create Object Spec
    ObjectSpec objectSpec = new ObjectSpecBuilder()
            .obj(rootFolder)
            .skip(Boolean.TRUE)
            .selectSet(tSpec);

    // Create PropertyFilterSpec using the PropertySpec and ObjectPec
    // created above.
    PropertyFilterSpec propertyFilterSpec = new PropertyFilterSpecBuilder()
            .propSet(propertySpec)
            .objectSet(objectSpec);

    List<PropertyFilterSpec> listpfs =
            new ArrayList<PropertyFilterSpec>(1);
    listpfs.add(propertyFilterSpec);
    RetrieveOptions options = new RetrieveOptions();
    // Query returns a fixed number of results
    // if token is returned we can get more results
    RetrieveResult retrieveResult =
            this.vimPort.retrievePropertiesEx(propCollectorRef, listpfs, options);
    String token = null;

    do {
        token = (retrieveResult != null) ? retrieveResult.getToken() : null;
        List<ObjectContent> listobcont =
                (retrieveResult != null) ?
                        retrieveResult.getObjects() : null;

        if (listobcont != null) {
            for (ObjectContent oc : listobcont) {
                ManagedObjectReference mr = oc.getObj();
                String vmnm = null;
                List<DynamicProperty> dps = oc.getPropSet();
                if (dps != null) {
                    for (DynamicProperty dp : dps) {
                        vmnm = (String) dp.getVal();
                        if (vmName.equals(vmnm)) {
                            return mr;
                        }
                    }
                }
            }
        }
        if (token != null) {
            retrieveResult = this.vimPort.continueRetrievePropertiesEx(propCollectorRef, token);
        }
    } while (token != null);

    return null;
}