import com.vmware.vim25.WaitOptions; //导入依赖的package包/类
ObjectUpdateIterator(ManagedObjectReference pc) {
    this.pc = pc;

    // don't fetch too much data or block for too long
    this.opts = new WaitOptions();
    this.opts.setMaxWaitSeconds(10);
    this.opts.setMaxObjectUpdates(DEFAULT_FETCH_PAGE_SIZE);
}
 

import com.vmware.vim25.WaitOptions; //导入依赖的package包/类
/** @since SDK4.1 */
public UpdateSet waitForUpdatesEx(String version, WaitOptions options) throws InvalidCollectorVersion, RuntimeFault, RemoteException
{
 return getVimService().waitForUpdatesEx(getMOR(), version, options);
}
 

import com.vmware.vim25.WaitOptions; //导入依赖的package包/类
/**
 * Handle Updates for a single object. waits till expected values of
 * properties to check are reached Destroys the ObjectFilter when done.
 *
 * @param objMor         MOR of the Object to wait for param
 * @param filterProps    Properties list to filter
 * @param endWaitProps   Properties list to check for expected values these be properties
 *                       of a property in the filter properties list
 * @param expectedValues values for properties to end the wait
 * @return true indicating expected values were met, and false otherwise
 * @throws RuntimeFaultFaultMsg
 * @throws InvalidPropertyFaultMsg
 * @throws InvalidCollectorVersionFaultMsg
 */
public Object[] wait(ManagedObjectReference objMor, String[] filterProps, String[] endWaitProps, Object[][] expectedValues)
        throws InvalidPropertyFaultMsg, RuntimeFaultFaultMsg, InvalidCollectorVersionFaultMsg {

    String version = Constants.EMPTY;
    String stateVal = null;

    Object[] endValues = new Object[endWaitProps.length];
    Object[] filterValues = new Object[filterProps.length];

    PropertyFilterSpec spec = propertyFilterSpec(objMor, filterProps);
    ManagedObjectReference filterSpecRef = vimPort.createFilter(serviceContent.getPropertyCollector(), spec, true);

    boolean reached = false;
    UpdateSet updateset;
    while (!reached) {
        updateset = vimPort.waitForUpdatesEx(serviceContent.getPropertyCollector(), version, new WaitOptions());

        int waitForUpdateCounter = 0;
        if (updateset == null || updateset.getFilterSet() == null) {
            waitForUpdateCounter++;
            if (waitForUpdateCounter <= MAX_TRIED_WAIT_FOR_UPDATE_COUNTER) {
                continue;
            }
            break;
        }

        version = updateset.getVersion();
        for (PropertyFilterUpdate filtup : updateset.getFilterSet()) {
            for (ObjectUpdate objup : filtup.getObjectSet()) {
                if (objup.getKind() == ObjectUpdateKind.MODIFY || objup.getKind() == ObjectUpdateKind.ENTER ||
                        objup.getKind() == ObjectUpdateKind.LEAVE) {
                    for (PropertyChange propchg : objup.getChangeSet()) {
                        updateValues(endWaitProps, endValues, propchg);
                        updateValues(filterProps, filterValues, propchg);
                    }
                }
            }
        }
        // Check if the expected values have been reached and exit the loop if done.
        // Also exit the WaitForUpdates loop if this is the case.
        for (int chgi = 0; chgi < endValues.length && !reached; chgi++) {
            for (int vali = 0; vali < expectedValues[chgi].length && !reached; vali++) {
                Object expctdval = expectedValues[chgi][vali];
                if (endValues[chgi].toString().contains(KEY_VALUE_NULL_STRING)) {
                    Element stateElement = (Element) endValues[chgi];
                    if (stateElement != null && stateElement.getFirstChild() != null) {
                        stateVal = stateElement.getFirstChild().getTextContent();
                        reached = expctdval.toString().equalsIgnoreCase(stateVal);
                    }
                } else {
                    expctdval = expectedValues[chgi][vali];
                    reached = expctdval.equals(endValues[chgi]);
                    stateVal = FILTER_VALUES;
                }
            }
        }
    }
    try {
        vimPort.destroyPropertyFilter(filterSpecRef);
    } catch (RuntimeFaultFaultMsg e) {
        throw new RuntimeException(e.getMessage());
    }

    return getObjectState(stateVal, filterValues);
}