Examples with MemoizingSupplier org.ovirt.engine.core.utils.MemoizingSupplier used on opensource projects

Example 1 with MemoizingSupplier

use of org.ovirt.engine.core.utils.MemoizingSupplier in project ovirt-engine by oVirt.

the class VmDevicesConverter method parseDisks.

private List<Map<String, Object>> parseDisks(XmlDocument document, List<VmDevice> devices) {
    List<VmDevice> dbDevices = filterDevices(devices, VmDeviceGeneralType.DISK);
    MemoizingSupplier<Map<Guid, String>> diskToLunSupplier = new MemoizingSupplier<>(() -> diskLunMapDao.getAll().stream().collect(Collectors.toMap(DiskLunMap::getDiskId, DiskLunMap::getLunId)));
    List<Map<String, Object>> result = new ArrayList<>();
    for (XmlNode node : selectNodes(document, VmDeviceGeneralType.DISK)) {
        Map<String, Object> dev = new HashMap<>();
        dev.put(VdsProperties.Type, VmDeviceGeneralType.DISK.getValue());
        String diskType = parseAttribute(node, DEVICE);
        dev.put(VdsProperties.Device, diskType);
        dev.put(VdsProperties.Address, parseAddress(node));
        dev.put(VdsProperties.Alias, parseAlias(node));
        String path = parseDiskPath(node);
        VmDevice dbDev = correlate(dev, dbDevices, device -> findDiskDeviceInDbByPath(dbDevices, diskType, path, diskToLunSupplier));
        if (dbDev == null) {
            log.warn("unmanaged disk with path '{}' is ignored", path);
            continue;
        }
        dbDevices.remove(dbDev);
        dev.put(VdsProperties.ImageId, parseImageIdFromPath(path));
        dev.put(VdsProperties.DeviceId, dbDev.getDeviceId().toString());
        dev.put(VdsProperties.SpecParams, dbDev.getSpecParams());
        List<Map<String, Object>> volumeChain = parseVolumeChain(node);
        if (!volumeChain.isEmpty()) {
            dev.put(VdsProperties.VolumeChain, volumeChain.toArray());
        }
        result.add(dev);
    }
    return result;
}

Example 2 with MemoizingSupplier

use of org.ovirt.engine.core.utils.MemoizingSupplier in project ovirt-engine by oVirt.

the class VmDevicesConverter method parseInterfaces.

private List<Map<String, Object>> parseInterfaces(XmlDocument document, List<VmDevice> devices, Guid vmId, MemoizingSupplier<Map<Map<String, String>, HostDevice>> addressToHostDeviceSupplier) {
    List<VmDevice> dbDevices = filterDevices(devices, VmDeviceGeneralType.INTERFACE);
    Map<Guid, VmDevice> devIdToDbDev = dbDevices.stream().collect(Collectors.toMap(device -> device.getDeviceId(), device -> device));
    List<VmNetworkInterface> dbInterfaces = vmNetworkInterfaceDao.getAllForVm(vmId);
    List<Map<String, Object>> result = new ArrayList<>();
    for (XmlNode node : selectNodes(document, VmDeviceGeneralType.INTERFACE)) {
        String type = parseAttribute(node, TYPE);
        Map<String, Object> dev = new HashMap<>();
        if (VmDeviceType.HOST_DEVICE.getName().equals(type)) {
            dev.put(VdsProperties.HostDev, getHostDeviceName(node, addressToHostDeviceSupplier));
        }
        dev.put(VdsProperties.Type, VmDeviceGeneralType.INTERFACE.getValue());
        dev.put(VdsProperties.Device, type);
        dev.put(VdsProperties.Address, parseAddress(node));
        dev.put(VdsProperties.Alias, parseAlias(node));
        String macAddress = parseMacAddress(node);
        // MAC address is a unique identifier of network interface devices
        VmDevice dbDev = correlate(dev, dbDevices, device -> {
            VmNetworkInterface dbInterface = dbInterfaces.stream().filter(iface -> iface.getMacAddress().equalsIgnoreCase(macAddress)).findFirst().orElse(null);
            return dbInterface != null ? devIdToDbDev.get(dbInterface.getId()) : null;
        });
        if (dbDev == null) {
            log.warn("unmanaged network interface with mac address '{}' is ignored", macAddress);
            continue;
        }
        dev.put(VdsProperties.DeviceId, dbDev.getDeviceId().toString());
        dev.put(VdsProperties.SpecParams, dbDev.getSpecParams());
        result.add(dev);
    }
    return result;
}

Example 3 with MemoizingSupplier

use of org.ovirt.engine.core.utils.MemoizingSupplier in project ovirt-engine by oVirt.

the class VmDevicesConverter method parseManagedHostDevices.

/**
 * This method processes managed host devices (those that are set by the engine).
 * That means that the device should already exist in the database and can be correlated
 * with one of the devices of the host. Host devices that were designed to be added as
 * unmanaged devices, like mdev devices, are handled separately.
 */
private List<Map<String, Object>> parseManagedHostDevices(XmlDocument document, List<VmDevice> devices, Guid hostId, MemoizingSupplier<Map<Map<String, String>, HostDevice>> addressToHostDeviceSupplier) {
    List<VmDevice> dbDevices = filterDevices(devices, VmDeviceGeneralType.HOSTDEV);
    if (dbDevices.isEmpty()) {
        return Collections.emptyList();
    }
    List<Map<String, Object>> result = new ArrayList<>();
    for (XmlNode node : document.selectNodes("//*/hostdev")) {
        Map<String, String> hostAddress = parseHostAddress(node);
        if (hostAddress == null) {
            continue;
        }
        HostDevice hostDevice = addressToHostDeviceSupplier.get().get(hostAddress);
        if (hostDevice == null) {
            // unmanaged
            continue;
        }
        Map<String, Object> dev = new HashMap<>();
        dev.put(VdsProperties.Address, parseAddress(node));
        dev.put(VdsProperties.Type, VmDeviceGeneralType.HOSTDEV.getValue());
        dev.put(VdsProperties.Alias, parseAlias(node));
        dev.put(VdsProperties.Device, hostDevice.getDeviceName());
        VmDevice dbDev = correlate(dev, dbDevices, device -> dbDevices.stream().filter(d -> d.getDevice().equals(hostDevice.getDeviceName())).findFirst().orElse(null));
        if (dbDev == null) {
            log.warn("VM host device '{}' does not exist in the database, thus ignored", hostDevice.getDeviceName());
            continue;
        }
        dev.put(VdsProperties.DeviceId, dbDev.getDeviceId().toString());
        dev.put(VdsProperties.SpecParams, dbDev.getSpecParams());
        result.add(dev);
    }
    return result;
}

Example 4 with MemoizingSupplier

use of org.ovirt.engine.core.utils.MemoizingSupplier in project ovirt-engine by oVirt.

the class VmDevicesConverter method parseUnmanagedHostDevices.

private List<Map<String, Object>> parseUnmanagedHostDevices(XmlDocument document, List<VmDevice> devices, Guid hostId, MemoizingSupplier<Map<Map<String, String>, HostDevice>> addressToHostDeviceSupplier) {
    List<VmDevice> dbDevices = filterDevices(devices, VmDeviceGeneralType.HOSTDEV);
    List<Map<String, Object>> result = new ArrayList<>();
    for (XmlNode node : document.selectNodes("//*/hostdev")) {
        Map<String, String> hostAddress = parseHostAddress(node);
        if (hostAddress == null) {
            continue;
        }
        if (addressToHostDeviceSupplier.get().containsKey(hostAddress)) {
            // managed
            continue;
        }
        Map<String, Object> dev = new HashMap<>();
        dev.put(VdsProperties.Type, VmDeviceGeneralType.HOSTDEV.getValue());
        dev.put(VdsProperties.Address, parseAddress(node));
        dev.put(VdsProperties.Alias, parseAlias(node));
        String deviceType = parseAttribute(node, TYPE);
        dev.put(VdsProperties.Device, deviceType);
        dev.put(VdsProperties.SpecParams, hostAddress);
        VmDevice dbDev = correlate(dev, dbDevices, device -> dbDevices.stream().filter(d -> d.getDevice().equals(deviceType) && Objects.equals(d.getSpecParams(), hostAddress)).findFirst().orElse(null));
        dev.put(VdsProperties.DeviceId, dbDev != null ? dbDev.getDeviceId().toString() : Guid.newGuid().toString());
        result.add(dev);
    }
    return result;
}