1 files changed, 191 insertions, 0 deletions
diff --git a/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationQemuUtils.java b/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationQemuUtils.java
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+++ b/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationQemuUtils.java
@@ -0,0 +1,191 @@
+package org.openslx.virtualization.configuration;
+
+import java.util.ArrayList;
+
+import org.openslx.libvirt.domain.device.Disk;
+import org.openslx.libvirt.domain.device.Interface;
+import org.openslx.libvirt.domain.device.Disk.BusType;
+import org.openslx.virtualization.configuration.VirtualizationConfiguration.DriveBusType;
+import org.openslx.virtualization.configuration.VirtualizationConfiguration.EthernetDevType;
+import org.openslx.virtualization.configuration.VirtualizationConfiguration.SoundCardType;
+import org.openslx.libvirt.domain.device.Sound;
+
+/**
+ * Collection of utils to convert data types from bwLehrpool to Libvirt and vice versa.
+ * 
+ * @author Manuel Bentele
+ * @version 1.0
+ */
+public class VirtualizationConfigurationQemuUtils
+{
+	/**
+	 * Converts a Libvirt disk device bus type to a VM metadata driver bus type.
+	 * 
+	 * @param busType Libvirt disk device bus type.
+	 * @return VM metadata bus type of the disk drive.
+	 */
+	public static DriveBusType convertBusType( Disk.BusType busType )
+	{
+		DriveBusType type = null;
+
+		switch ( busType ) {
+		case IDE:
+			type = DriveBusType.IDE;
+			break;
+		case SATA:
+			type = DriveBusType.SATA;
+			break;
+		case SCSI:
+			type = DriveBusType.SCSI;
+			break;
+		default:
+			type = null;
+			break;
+		}
+
+		return type;
+	}
+
+	/**
+	 * Converts a VM metadata driver bus type to a Libvirt disk device bus type.
+	 * 
+	 * @param busType VM metadata bus type of the disk drive.
+	 * @return Libvirt disk device bus type.
+	 */
+	public static Disk.BusType convertBusType( DriveBusType busType )
+	{
+		Disk.BusType type = null;
+
+		switch ( busType ) {
+		case IDE:
+			type = BusType.IDE;
+			break;
+		case NVME:
+			type = null;
+			break;
+		case SATA:
+			type = BusType.SATA;
+			break;
+		case SCSI:
+			type = BusType.SCSI;
+			break;
+		}
+
+		return type;
+	}
+
+	/**
+	 * Converts a Libvirt sound device model to a VM metadata sound card type.
+	 * 
+	 * @param soundDeviceModel Libvirt sound device model.
+	 * @return VM metadata sound card type.
+	 */
+	public static SoundCardType convertSoundDeviceModel( Sound.Model soundDeviceModel )
+	{
+		SoundCardType type = SoundCardType.NONE;
+
+		switch ( soundDeviceModel ) {
+		case AC97:
+			type = SoundCardType.AC;
+			break;
+		case ES1370:
+			type = SoundCardType.ES;
+			break;
+		case ICH6:
+			type = SoundCardType.HD_AUDIO;
+			break;
+		case ICH9:
+			type = SoundCardType.HD_AUDIO;
+			break;
+		case SB16:
+			type = SoundCardType.SOUND_BLASTER;
+			break;
+		}
+
+		return type;
+	}
+
+	/**
+	 * Converts a Libvirt network device model to a VM metadata ethernet device type.
+	 * 
+	 * @param soundDeviceModel Libvirt network device model.
+	 * @return VM metadata ethernet device type.
+	 */
+	public static EthernetDevType convertNetworkDeviceModel( Interface.Model networkDeviceModel )
+	{
+		EthernetDevType type = EthernetDevType.NONE;
+
+		switch ( networkDeviceModel ) {
+		case E1000:
+			type = EthernetDevType.E1000;
+			break;
+		case E1000E:
+			type = EthernetDevType.E1000E;
+			break;
+		case PCNET:
+			type = EthernetDevType.PCNETPCI2;
+			break;
+		case VIRTIO:
+			type = EthernetDevType.PARAVIRT;
+			break;
+		case VIRTIO_NET_PCI:
+			type = EthernetDevType.PARAVIRT;
+			break;
+		case VIRTIO_NET_PCI_NON_TRANSITIONAL:
+			type = EthernetDevType.PARAVIRT;
+			break;
+		case VIRTIO_NET_PCI_TRANSITIONAL:
+			type = EthernetDevType.PARAVIRT;
+			break;
+		case VMXNET3:
+			type = EthernetDevType.VMXNET3;
+			break;
+		default:
+			type = EthernetDevType.AUTO;
+			break;
+		}
+
+		return type;
+	}
+
+	/**
+	 * Returns an item from a given {@link ArrayList}.
+	 * 
+	 * The item is selected by a given index. If the item is not available within the
+	 * {@link ArrayList}, <code>null</code> is returned.
+	 * 
+	 * @param <T> type of the {@link ArrayList}.
+	 * @param array {@link ArrayList} of type <code>T</code>.
+	 * @param index selects the item from the {@link ArrayList}.
+	 * @return selected item of the {@link ArrayList}.
+	 */
+	public static <T> T getArrayIndex( ArrayList<T> array, int index )
+	{
+		T ret;
+
+		try {
+			ret = array.get( index );
+		} catch ( IndexOutOfBoundsException e ) {
+			ret = null;
+		}
+
+		return ret;
+	}
+
+	/**
+	 * Creates an alphabetical device name constructed from a device prefix and a device number.
+	 * 
+	 * @param devicePrefix prefix of the constructed device name.
+	 * @param deviceNumber number of the device.
+	 * @return alphabetical device name.
+	 */
+	public static String createAlphabeticalDeviceName( String devicePrefix, int deviceNumber )
+	{
+		if ( deviceNumber < 0 || deviceNumber >= ( 'z' - 'a' ) ) {
+			String errorMsg = new String( "Device number is out of range to be able to create a valid device name." );
+			throw new IllegalArgumentException( errorMsg );
+		}
+
+		return devicePrefix + ( 'a' + deviceNumber );
+	}
+}