hwvtepsouthbound/hwvtepsouthbound-impl/src/main/java/org/opendaylight/ovsdb/hwvtepsouthbound/reconciliation/connection/ConnectionReconciliationTask.java

   1 /*
   2  * Copyright (c) 2016 Brocade Communications 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.ovsdb.hwvtepsouthbound.reconciliation.connection;
   9
  10 import org.opendaylight.ovsdb.hwvtepsouthbound.reconciliation.ReconciliationManager;
  11 import org.opendaylight.ovsdb.hwvtepsouthbound.reconciliation.ReconciliationTask;
  12 import org.opendaylight.ovsdb.lib.OvsdbClient;
  13 import org.opendaylight.ovsdb.hwvtepsouthbound.HwvtepConnectionManager;
  14 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  15 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  16 import org.opendaylight.yangtools.yang.binding.DataObject;
  17 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 import java.net.UnknownHostException;
  22 import java.util.concurrent.atomic.AtomicInteger;
  23
  24 /**
  25  * Copied from org.opendaylight.ovsdb.southbound.reconciliation.connection.ConnectionReconciliationTask
  26  *
  27  * Created by Anil Vishnoi (avishnoi@Brocade.com) on 3/9/16.
  28  */
  29 public class ConnectionReconciliationTask extends ReconciliationTask {
  30
  31     private static final Logger LOG = LoggerFactory.getLogger(ConnectionReconciliationTask.class);
  32
  33     private static final int RETRY_INTERVAL_FACTOR = 10000;
  34     private static final int MAX_ATTEMPT = 10;
  35
  36     private AtomicInteger connectionAttempt = new AtomicInteger(0);
  37
  38     public ConnectionReconciliationTask(ReconciliationManager reconciliationManager, HwvtepConnectionManager
  39             connectionManager, InstanceIdentifier<?> nodeIid, DataObject configData) {
  40         super(reconciliationManager, connectionManager, nodeIid, configData);
  41
  42     }
  43
  44     @Override
  45     public boolean reconcileConfiguration(HwvtepConnectionManager connectionManager) {
  46         boolean result = false;
  47         connectionAttempt.incrementAndGet();
  48         InstanceIdentifier<Node> nIid = (InstanceIdentifier<Node>) nodeIid;
  49         HwvtepGlobalAugmentation hwvtepNode = (HwvtepGlobalAugmentation)configData;
  50
  51         LOG.info("Retry({}) connection to Ovsdb Node {} ", connectionAttempt.get(), hwvtepNode.getConnectionInfo());
  52         OvsdbClient client = null;
  53         try {
  54             client = connectionManager.connect(nIid, hwvtepNode);
  55             if (client != null) {
  56                 LOG.info("Successfully connected to Hwvtep Node {} ", hwvtepNode.getConnectionInfo());
  57                 result = true;
  58             } else {
  59                 LOG.warn("Connection retry({}) failed for {}.",
  60                         connectionAttempt.get(), hwvtepNode.getConnectionInfo());
  61             }
  62         } catch (UnknownHostException e) {
  63             LOG.warn("Connection retry({}) failed with exception. ",connectionAttempt.get(), e);
  64         }
  65         return result;
  66     }
  67
  68     @Override
  69     public void doRetry(boolean wasLastAttemptSuccessful) {
  70
  71         if( !wasLastAttemptSuccessful && connectionAttempt.get() <= MAX_ATTEMPT ) {
  72             reconciliationManager.enqueueForRetry(ConnectionReconciliationTask.this);
  73         } else {
  74             reconciliationManager.dequeue(this);
  75         }
  76     }
  77
  78     @Override
  79     public void checkReadinessAndProcess() {
  80         reconciliationManager.enqueue(this);
  81     }
  82
  83     @Override
  84     public long retryDelayInMills() {
  85         return connectionAttempt.get() * RETRY_INTERVAL_FACTOR;
  86     }
  87 }