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package org.openslx.libvirt.capabilities;
import java.io.File;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.openslx.libvirt.capabilities.cpu.Cpu;
import org.openslx.libvirt.capabilities.guest.Guest;
import org.openslx.libvirt.xml.LibvirtXmlDocument;
import org.openslx.libvirt.xml.LibvirtXmlDocumentException;
import org.openslx.libvirt.xml.LibvirtXmlNode;
import org.openslx.libvirt.xml.LibvirtXmlResources;
import org.openslx.libvirt.xml.LibvirtXmlSerializationException;
import org.openslx.libvirt.xml.LibvirtXmlValidationException;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
/**
* Implementation of the Libvirt capabilities XML document.
*
* The Libvirt capabilities XML document is used to describe the configuration and capabilities of
* the hypervisor's host.
*
* @author Manuel Bentele
* @version 1.0
*/
public class Capabilities extends LibvirtXmlDocument
{
/**
* Creates Libvirt capabilities XML document from {@link String} providing Libvirt capabilities
* XML content.
*
* @param xml {@link String} with Libvirt capabilities XML content.
*
* @throws LibvirtXmlDocumentException creation of XML context failed.
* @throws LibvirtXmlSerializationException serialization of the capabilities XML content failed.
* @throws LibvirtXmlValidationException XML content is not a valid capabilities XML document.
*/
public Capabilities( String xml )
throws LibvirtXmlDocumentException, LibvirtXmlSerializationException, LibvirtXmlValidationException
{
super( xml, LibvirtXmlResources.getLibvirtRng( "capabilities.rng" ) );
}
/**
* Creates Libvirt capabilities XML document from {@link File} containing Libvirt capabilities
* XML content.
*
* @param xml existing {@link File} containing Libvirt capabilities XML content.
*
* @throws LibvirtXmlDocumentException creation of XML context failed.
* @throws LibvirtXmlSerializationException serialization of the capabilities XML content failed.
* @throws LibvirtXmlValidationException XML content is not a valid capabilities XML document.
*/
public Capabilities( File xml )
throws LibvirtXmlDocumentException, LibvirtXmlSerializationException, LibvirtXmlValidationException
{
super( xml, LibvirtXmlResources.getLibvirtRng( "capabilities.rng" ) );
}
/**
* Creates Libvirt capabilities XML document from {@link InputStream} providing Libvirt
* capabilities XML content.
*
* @param xml {@link InputStream} providing Libvirt capabilities XML content.
*
* @throws LibvirtXmlDocumentException creation of XML context failed.
* @throws LibvirtXmlSerializationException serialization of the capabilities XML content failed.
* @throws LibvirtXmlValidationException XML content is not a valid capabilities XML document.
*/
public Capabilities( InputStream xml )
throws LibvirtXmlDocumentException, LibvirtXmlSerializationException, LibvirtXmlValidationException
{
super( xml, LibvirtXmlResources.getLibvirtRng( "capabilities.rng" ) );
}
/**
* Creates Libvirt capabilities XML document from {@link InputSource} providing Libvirt
* capabilities XML content.
*
* @param xml {@link InputSource} providing Libvirt capabilities XML content.
*
* @throws LibvirtXmlDocumentException creation of XML context failed.
* @throws LibvirtXmlSerializationException serialization of the capabilities XML content failed.
* @throws LibvirtXmlValidationException XML content is not a valid capabilities XML document.
*/
public Capabilities( InputSource xml )
throws LibvirtXmlDocumentException, LibvirtXmlSerializationException, LibvirtXmlValidationException
{
super( xml, LibvirtXmlResources.getLibvirtRng( "capabilities.rng" ) );
}
/**
* Returns UUID of the Libvirt host machine.
*
* @return UUID of the host machine.
*/
public String getHostUuid()
{
return this.getRootXmlNode().getXmlElementValue( "host/uuid" );
}
/**
* Returns CPU capabilities of the host machine.
*
* @return CPU capabilities of the host machine.
*/
public Cpu getHostCpu()
{
final Node hostCpuNode = this.getRootXmlNode().getXmlElement( "host/cpu" );
if ( hostCpuNode == null ) {
return null;
} else {
final LibvirtXmlNode hostCpuXmlNode = new LibvirtXmlNode( this.getRootXmlNode().getXmlDocument(),
hostCpuNode );
return Cpu.newInstance( hostCpuXmlNode );
}
}
/**
* Checks whether the Libvirt host machine has IOMMU support.
*
* @return State of the IOMMU support.
*/
public boolean hasHostIommuSupport()
{
return this.getRootXmlNode().getXmlElementAttributeValueAsBool( "host/iommu", "support" );
}
/**
* Returns capabilities of all possible guest machines.
*
* @return capabilities of all possible guest machines.
*/
public List<Guest> getGuests()
{
final List<Guest> guestList = new ArrayList<Guest>();
final NodeList guestNodes = this.getRootXmlNode().getXmlNodes( "guest" );
for ( int i = 0; i < guestNodes.getLength(); i++ ) {
final LibvirtXmlNode guestNode = new LibvirtXmlNode( this.getRootXmlNode().getXmlDocument(),
guestNodes.item( i ) );
final Guest guest = Guest.newInstance( guestNode );
if ( guest != null ) {
guestList.add( guest );
}
}
return guestList;
}
}
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