/*
* Copyright (c) 2013 Big Switch Networks, Inc.
*
* Licensed under the Eclipse Public License, Version 1.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.eclipse.org/legal/epl-v10.html
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package org.sdnplatform.core.web;
import org.restlet.resource.Get;
import org.restlet.resource.ServerResource;
import org.sdnplatform.linkdiscovery.ILinkDiscoveryService;
import org.sdnplatform.linkdiscovery.internal.EventHistoryTopologyCluster;
import org.sdnplatform.linkdiscovery.internal.LinkDiscoveryManager;
import org.sdnplatform.util.EventHistory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author subrata
*
*/
public class EventHistoryTopologyClusterResource extends ServerResource {
// TODO - Move this to the LinkDiscovery rest API
protected 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;
}
}