private boolean isVirtualNodeAlreadyAdded(int sourceId) {
List<NetworkElement> virtualDevices =
NetworkModelHelper.getNetworkElementsByClassName(
VirtualDevice.class, mappingNetworkResult.getNetworkElements());
for (NetworkElement device : virtualDevices)
if (device.getName().equals(String.valueOf(sourceId))) return true;
return false;
}
private void addVirtualDeviceToModel(int phyNodeId) throws ResourceNotFoundException {
List<NetworkElement> vDevices =
NetworkModelHelper.getNetworkElementsByClassName(
VirtualDevice.class, mappingNetworkResult.getNetworkElements());
int virtualId = vDevices.size();
String phyDeviceId = inpNetwork.getNodes().get(phyNodeId).getPnodeID();
Device device = NetworkModelHelper.getDeviceByName(physicalNetworkModel, phyDeviceId);
if (device == null)
throw new ResourceNotFoundException(
"Device " + phyDeviceId + " not found in network topology.");
VirtualDevice vDevice = new VirtualDevice();
vDevice.setName(String.valueOf(virtualId));
vDevice.setImplementedBy(phyDeviceId);
mappingNetworkResult.getNetworkElements().add(vDevice);
}
/**
* This method looks if there's a virtual device implemented by the physical device with the param
* name in model. If so, the name of this virtual device is returned. If not, the "size" index is
* returned in order to add a new virtual device with this name to the virtual devices list.
*
* @param phyNodeId
* @return
*/
private int getVirtualDeviceIdByPhysicalId(int phyNodeId) {
List<NetworkElement> vDevices =
NetworkModelHelper.getNetworkElementsByClassName(
VirtualDevice.class, mappingNetworkResult.getNetworkElements());
String phyNodeName = this.inpNetwork.getNodes().get(phyNodeId).getPnodeID();
for (NetworkElement vDevice : vDevices) {
if (((VirtualDevice) vDevice).getImplementedBy().equals(phyNodeName))
return Integer.valueOf(vDevice.getName());
}
return Integer.valueOf(vDevices.size());
}
private void parseVirtualDevices() throws ResourceNotFoundException {
for (int i = 0; i < mappingResult.getVnodes().size(); i++) {
int vnodeId = mappingResult.getVnodes().get(i);
String deviceId = inpNetwork.getNodes().get(vnodeId).getPnodeID();
Device device = NetworkModelHelper.getDeviceByName(physicalNetworkModel, deviceId);
if (device == null)
throw new ResourceNotFoundException(
"Device " + deviceId + " not found in network topology.");
VirtualDevice vDevice = new VirtualDevice();
vDevice.setName(String.valueOf(i));
vDevice.setImplementedBy(deviceId);
mappingNetworkResult.getNetworkElements().add(vDevice);
}
}
/**
* This method adds to virtual model all necessary information to store a virtual link: 1) Builds
* a source and a sink virtual interface. 2) Links virtual interfaces to virtual devices (source
* and sink). 3) Links virtual link with physical link.
*
* @param virtualPath
* @param sourceId
* @param sinkId
* @throws ResourceNotFoundException
*/
private void addVirtualLink(
org.opennaas.extensions.network.model.topology.Path virtualPath, int sourceId, int sinkId)
throws ResourceNotFoundException {
VirtualInterface vIfaceSource = new VirtualInterface();
VirtualInterface vIfaceSink = new VirtualInterface();
VirtualDevice sourceDevice =
(VirtualDevice)
NetworkModelHelper.getDeviceByName(mappingNetworkResult, String.valueOf(sourceId));
VirtualDevice sinkDevice =
(VirtualDevice)
NetworkModelHelper.getDeviceByName(mappingNetworkResult, String.valueOf(sinkId));
vIfaceSource.setDevice(sourceDevice);
vIfaceSink.setDevice(sinkDevice);
VirtualLink vlink = new VirtualLink();
String sourcePhyDevice = sourceDevice.getImplementedBy();
String sinkPhyDevice = sinkDevice.getImplementedBy();
List<Link> links =
NetworkModelHelper.getAllLinksBetweenTwoDevices(
(NetworkModel) physicalNetworkModel, sourcePhyDevice, sinkPhyDevice);
if (links.isEmpty())
throw new ResourceNotFoundException(
"No physical links between physical devices "
+ sourcePhyDevice
+ " and "
+ sinkPhyDevice);
vlink.setImplementedBy(links.get(0).getName());
vlink.setSource(vIfaceSource);
vlink.setSink(vIfaceSink);
virtualPath.getPathSegments().add(vlink);
mappingNetworkResult.getNetworkElements().add(vlink);
}
private void parseVirtualLinks() throws ResourceNotFoundException {
ArrayList<ArrayList<VNTLinkMappingCell>> resultLinks = mappingResult.getVNTLinkMappingArray();
for (int i = 0; i < (int) resultLinks.size(); i++) {
for (int j = 0; j < (int) resultLinks.get(i).size(); j++) {
if (resultLinks.get(i).get(j).getIsMapped() == 1) {
// all this block constructs the virtual network
Path path;
if (i < j) {
resultLinks
.get(i)
.get(j)
.getResultPath()
.setNode1Id(Integer.valueOf(mappingResult.getVnodes().get(i).toString()));
resultLinks
.get(i)
.get(j)
.getResultPath()
.setNode2Id(Integer.valueOf(mappingResult.getVnodes().get(j).toString()));
path = resultLinks.get(i).get(j).getResultPath();
} else {
resultLinks
.get(j)
.get(i)
.getResultPath()
.setNode1Id(Integer.valueOf(mappingResult.getVnodes().get(j).toString()));
resultLinks
.get(j)
.get(i)
.getResultPath()
.setNode2Id(Integer.valueOf(mappingResult.getVnodes().get(i).toString()));
path = resultLinks.get(j).get(i).getResultPath();
}
// binds to physical path
org.opennaas.extensions.network.model.topology.Path virtualPath =
new org.opennaas.extensions.network.model.topology.Path();
String sourceId = String.valueOf(Math.min(i, j));
String sinkId = String.valueOf(Math.max(i, j));
virtualPath.setName(sourceId + "-" + sinkId);
for (int k = 0; k < path.getLinks().size(); k++) {
int phySourceId = path.getLinks().get(k).getNode1Id();
int phySinkId = path.getLinks().get(k).getNode2Id();
int vSourceId = getVirtualDeviceIdByPhysicalId(phySourceId);
int vSinkId = getVirtualDeviceIdByPhysicalId(phySinkId);
if (!isVirtualNodeAlreadyAdded(vSourceId)) addVirtualDeviceToModel(phySourceId);
if (!isVirtualNodeAlreadyAdded(vSinkId)) addVirtualDeviceToModel(phySinkId);
addVirtualLink(virtualPath, vSourceId, vSinkId);
}
mappingNetworkResult.getNetworkElements().add(virtualPath);
}
}
}
}
private void addPhysicalNetworkElements() {
for (NetworkElement elem : physicalNetworkModel.getNetworkElements())
mappingNetworkResult.getNetworkElements().add(elem);
}