| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * 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.onosproject.provider.pcep.tunnel.impl; |
| |
| |
| import org.osgi.service.component.annotations.Reference; |
| import org.osgi.service.component.annotations.ReferenceCardinality; |
| import org.onlab.util.Timer; |
| import org.onosproject.pcep.api.PcepController; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import io.netty.util.Timeout; |
| import io.netty.util.TimerTask; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| /* |
| * Sends Stats Request and collect the tunnel statistics with a time interval. |
| */ |
| public class TunnelStatsCollector implements TimerTask { |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| @Reference(cardinality = ReferenceCardinality.MANDATORY) |
| protected PcepController controller; |
| |
| private int refreshInterval; |
| |
| private String pcepTunnelId; |
| private Timeout timeout; |
| private volatile boolean stopped; |
| |
| |
| /** |
| * Create a tunnel status collector object. |
| * |
| * @param id tunnel whose status data will be collected |
| * @param refreshInterval time interval for collecting statistic |
| */ |
| public TunnelStatsCollector(String id, int refreshInterval) { |
| this.pcepTunnelId = id; |
| this.refreshInterval = refreshInterval; |
| } |
| |
| @Override |
| public void run(Timeout timeout) throws Exception { |
| if (stopped || timeout.isCancelled()) { |
| return; |
| } |
| log.trace("Collecting stats for {}", pcepTunnelId); |
| |
| sendTunnelStatistic(); |
| if (!stopped && !timeout.isCancelled()) { |
| log.trace("Scheduling stats collection in {} seconds for {}", |
| this.refreshInterval, pcepTunnelId); |
| timeout.timer().newTimeout(this, refreshInterval, TimeUnit.SECONDS); |
| } |
| |
| } |
| |
| private void sendTunnelStatistic() { |
| controller.getTunnelStatistics(pcepTunnelId); |
| |
| } |
| |
| synchronized void adjustPollInterval(int pollInterval) { |
| this.refreshInterval = pollInterval; |
| } |
| |
| /** |
| * Starts the collector. |
| */ |
| public synchronized void start() { |
| log.info("Starting Tunnel Stats collection thread for {}", pcepTunnelId); |
| stopped = false; |
| timeout = Timer.newTimeout(this, 1, TimeUnit.SECONDS); |
| } |
| |
| /** |
| * Stops the collector. |
| */ |
| public synchronized void stop() { |
| log.info("Stopping Tunnel Stats collection thread for {}", pcepTunnelId); |
| stopped = true; |
| timeout.cancel(); |
| } |
| } |