/**
* Returns first vlan in vlanRange that is free in given interface of given router, and it's not
* in given suggestedVLANs. After this call, returned vlan is already included in suggestedVLANs.
*
* @param phyElement
* @param phyIface
* @param suggestedVLANs
* @return
* @return first vlan in vlanRange that is free in given interface of given router, and it's not
* in given suggestedVLANs
* @throws VCPENetworkManagerException if there is no available vlan in specified vlanRange
*/
public static int suggestVLAN(
VCPENetworkElement phyElement, Interface phyIface, SuggestedValues suggestedVLANs)
throws VCPENetworkManagerException {
List<Integer> candidates = getVLANs(phyElement, phyIface);
Integer selectedVlan = null;
for (Integer vlan : candidates) {
if (!suggestedVLANs.isAlreadySuggested(
VCPENetworkModelHelper.generatePhysicalInterfaceKey(phyElement, phyIface), vlan)) {
if (IsFreeChecker.isVLANFree(
null,
phyElement.getName(),
Integer.toString(vlan),
phyIface.getPhysicalInterfaceName())) {
selectedVlan = vlan;
break;
}
}
}
if (selectedVlan == null)
throw new VCPENetworkManagerException(
"Unable to find an available vlan for interface "
+ VCPENetworkModelHelper.generatePhysicalInterfaceKey(phyElement, phyIface));
suggestedVLANs.markAsSuggested(
VCPENetworkModelHelper.generatePhysicalInterfaceKey(phyElement, phyIface), selectedVlan);
return selectedVlan;
}
public static int suggestVLANWithPreference(
VCPENetworkElement phyElement,
Interface phyIface,
SuggestedValues suggestedVLANs,
int preferredVlan)
throws VCPENetworkManagerException {
if (!suggestedVLANs.isAlreadySuggested(
VCPENetworkModelHelper.generatePhysicalInterfaceKey(phyElement, phyIface), preferredVlan)) {
if (IsFreeChecker.isVLANFree(
null,
phyElement.getName(),
Integer.toString(preferredVlan),
phyIface.getPhysicalInterfaceName())) {
suggestedVLANs.markAsSuggested(
VCPENetworkModelHelper.generatePhysicalInterfaceKey(phyElement, phyIface),
preferredVlan);
return preferredVlan;
}
}
return suggestVLAN(phyElement, phyIface, suggestedVLANs);
}
