| package net.floodlightcontroller.core.web; |
| |
| import net.floodlightcontroller.util.EventHistory; |
| import net.onrc.onos.ofcontroller.linkdiscovery.ILinkDiscoveryService; |
| import net.onrc.onos.ofcontroller.linkdiscovery.internal.EventHistoryTopologyLink; |
| 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 EventHistoryTopologyLinkResource extends ServerResource { |
| // TODO - Move this to the DeviceManager Rest API |
| protected static Logger log = |
| LoggerFactory.getLogger(EventHistoryTopologyLinkResource.class); |
| |
| @Get("json") |
| public EventHistory<EventHistoryTopologyLink> 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 linkDiscoveryManager = |
| (LinkDiscoveryManager)getContext().getAttributes(). |
| get(ILinkDiscoveryService.class.getCanonicalName()); |
| if (linkDiscoveryManager != null) { |
| return new EventHistory<EventHistoryTopologyLink>( |
| linkDiscoveryManager.evHistTopologyLink, count); |
| } |
| |
| return null; |
| } |
| } |