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package org.openslx.libvirt.domain.device;
import org.openslx.libvirt.xml.LibvirtXmlNode;
/**
* A graphics (display) device node in a Libvirt domain XML document.
*
* @author Manuel Bentele
* @version 1.0
*/
public class Graphics extends Device
{
/**
* Creates an empty graphics device.
*/
public Graphics()
{
super();
}
/**
* Creates a graphics device representing an existing Libvirt XML graphics device element.
*
* @param xmlNode existing Libvirt XML graphics device element.
*/
public Graphics( LibvirtXmlNode xmlNode )
{
super( xmlNode );
}
/**
* Creates a non-existent graphics device as Libvirt XML device element.
*
* @param graphics graphics device that is created.
* @param xmlNode Libvirt XML node of the Libvirt XML device that is created.
* @return created graphics device instance.
*/
public static Graphics createInstance( Graphics graphics, LibvirtXmlNode xmlNode )
{
Graphics addedGraphics = null;
if ( graphics instanceof GraphicsSpice ) {
xmlNode.setXmlElementAttributeValue( "type", Type.SPICE.toString() );
addedGraphics = GraphicsSpice.createInstance( xmlNode );
} else if ( graphics instanceof GraphicsVnc ) {
xmlNode.setXmlElementAttributeValue( "type", Type.VNC.toString() );
addedGraphics = GraphicsVnc.createInstance( xmlNode );
}
return addedGraphics;
}
/**
* Creates a graphics device representing an existing Libvirt XML graphics device element.
*
* @param xmlNode existing Libvirt XML graphics device element.
* @return graphics device instance.
*/
public static Graphics newInstance( LibvirtXmlNode xmlNode )
{
Graphics deviceGraphics = null;
Type type = Type.fromString( xmlNode.getXmlElementAttributeValue( "type" ) );
if ( type == null ) {
return null;
}
switch ( type ) {
case SPICE:
deviceGraphics = GraphicsSpice.newInstance( xmlNode );
break;
case VNC:
deviceGraphics = GraphicsVnc.newInstance( xmlNode );
break;
}
return deviceGraphics;
}
/**
* Type of graphics device.
*
* @author Manuel Bentele
* @version 1.0
*/
enum Type
{
// @formatter:off
SPICE( "spice" ),
VNC ( "vnc" );
// @formatter:on
/**
* Name of graphics device type.
*/
private String type = null;
/**
* Creates graphics device type.
*
* @param type valid name of the graphics device type in a Libvirt domain XML document.
*/
Type( String type )
{
this.type = type;
}
@Override
public String toString()
{
return this.type;
}
/**
* Creates graphics device type from its name with error check.
*
* @param type name of the graphics device type in a Libvirt domain XML document.
* @return valid graphics device type.
*/
public static Type fromString( String type )
{
for ( Type t : Type.values() ) {
if ( t.type.equalsIgnoreCase( type ) ) {
return t;
}
}
return null;
}
}
}
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