renderers/ofoverlay/src/main/java/org/opendaylight/groupbasedpolicy/renderer/ofoverlay/statistics/ReadGbpFlowCacheTask.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.groupbasedpolicy.renderer.ofoverlay.statistics;
   9
  10 import static com.google.common.base.Preconditions.checkNotNull;
  11
  12 import java.lang.reflect.Type;
  13 import java.math.BigInteger;
  14 import java.util.Date;
  15 import java.util.List;
  16
  17 import javax.ws.rs.core.MultivaluedMap;
  18
  19 import org.opendaylight.groupbasedpolicy.api.StatisticsManager;
  20 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.statistics.flowcache.FlowCacheData;
  21 import org.opendaylight.groupbasedpolicy.renderer.ofoverlay.statistics.util.SFlowQueryParams;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 import com.google.gson.Gson;
  26 import com.google.gson.reflect.TypeToken;
  27 import com.sun.jersey.core.util.MultivaluedMapImpl;
  28
  29 public class ReadGbpFlowCacheTask implements Runnable {
  30
  31     private static final Logger LOG = LoggerFactory.getLogger(ReadGbpFlowCacheTask.class);
  32
  33     private static final Type LIST_OF_FLOW_CACHE_DATA = new TypeToken<List<FlowCacheData>>() {}.getType();
  34     private static final Gson GSON = new Gson();
  35
  36     private final SFlowRTConnection sFlowRTConnection;
  37     private final StatisticsManager statisticsManager;
  38     private final String maxFlows;
  39     private final String minValue;
  40     private final String aggMode;
  41     private final String path;
  42
  43     public ReadGbpFlowCacheTask(String flowCacheName, SFlowRTConnection sFlowRTConnection,
  44             StatisticsManager statisticsManager, Integer maxFlows, Double minValue, String aggMode) {
  45         this.path = "/activeflows/ALL/" + checkNotNull(flowCacheName) + "/json";
  46         this.sFlowRTConnection = checkNotNull(sFlowRTConnection);
  47         this.statisticsManager = checkNotNull(statisticsManager);
  48         this.maxFlows = String.valueOf(checkNotNull(maxFlows));
  49         this.minValue = String.valueOf(checkNotNull(minValue));
  50         this.aggMode = checkNotNull(aggMode);
  51     }
  52
  53     @Override
  54     public void run() {
  55         MultivaluedMap<String, String> params = new MultivaluedMapImpl();
  56         params.add(SFlowQueryParams.MAX_FLOWS, maxFlows);
  57         params.add(SFlowQueryParams.MIN_VALUE, minValue);
  58         params.add(SFlowQueryParams.AGG_MODE, aggMode);
  59         JsonRestClientResponse result = sFlowRTConnection.get(path, params);
  60
  61         if (result != null && result.getJsonResponse() != null) {
  62             List<FlowCacheData> dataList = GSON.fromJson(result.getJsonResponse(), LIST_OF_FLOW_CACHE_DATA);
  63             if (dataList == null) {
  64                 LOG.trace("Empty reply, not processing");
  65                 return;
  66             }
  67             if (LOG.isTraceEnabled()) {
  68                 LOG.trace("Got sFlow reply: {}", result.getJsonResponse());
  69             }
  70
  71             if (result.getStatusCode() < 300) {
  72                 sFlowRTConnection.getExecutor().execute((new ProcessDataTask(sFlowRTConnection.getFlowCache(), dataList,
  73                         BigInteger.valueOf(new Date().getTime()), statisticsManager)));
  74             } else if (result.getStatusCode() < 400) {
  75                 LOG.warn("Status code {}, not processing data. Response: {}", result.getStatusCode(),
  76                         result.getClientResponse().toString());
  77             } else {
  78                 LOG.error("Status code {}, not processing data. Response: {}", result.getStatusCode(),
  79                         result.getClientResponse().toString());
  80             }
  81         }
  82     }
  83 }