| package net.floodlightcontroller.core.web; |
| |
| import net.floodlightcontroller.util.EventHistory; |
| import net.onrc.onos.ofcontroller.linkdiscovery.ILinkDiscoveryService; |
| import net.onrc.onos.ofcontroller.linkdiscovery.internal.EventHistoryTopologyCluster; |
| import net.onrc.onos.ofcontroller.linkdiscovery.internal.LinkDiscoveryManager; |
| |
| import org.restlet.resource.Get; |
| import org.restlet.resource.ServerResource; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * @author subrata |
| * |
| */ |
| public class EventHistoryTopologyClusterResource extends ServerResource { |
| // TODO - Move this to the LinkDiscovery rest API |
| protected final static Logger log = |
| LoggerFactory.getLogger(EventHistoryTopologyClusterResource.class); |
| |
| @Get("json") |
| public EventHistory<EventHistoryTopologyCluster> handleEvHistReq() { |
| |
| // Get the event history count. Last <count> events would be returned |
| String evHistCount = (String)getRequestAttributes().get("count"); |
| int count = EventHistory.EV_HISTORY_DEFAULT_SIZE; |
| try { |
| count = Integer.parseInt(evHistCount); |
| } |
| catch(NumberFormatException nFE) { |
| // Invalid input for event count - use default value |
| } |
| |
| LinkDiscoveryManager topoManager = |
| (LinkDiscoveryManager)getContext().getAttributes(). |
| get(ILinkDiscoveryService.class.getCanonicalName()); |
| if (topoManager != null) { |
| return new EventHistory<EventHistoryTopologyCluster>( |
| topoManager.evHistTopologyCluster, count); |
| } |
| |
| return null; |
| } |
| } |