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.ConnectException;
  22 import java.net.UnknownHostException;
  23 import java.util.concurrent.atomic.AtomicInteger;
  24
  25 /**
  26  * Copied from org.opendaylight.ovsdb.southbound.reconciliation.connection.ConnectionReconciliationTask
  27  *
  28  * Created by Anil Vishnoi (avishnoi@Brocade.com) on 3/9/16.
  29  */
  30 public class ConnectionReconciliationTask extends ReconciliationTask {
  31
  32     private static final Logger LOG = LoggerFactory.getLogger(ConnectionReconciliationTask.class);
  33
  34     private static final int RETRY_INTERVAL_FACTOR = 10000;
  35     private static final int MAX_ATTEMPT = 10;
  36
  37     private AtomicInteger connectionAttempt = new AtomicInteger(0);
  38
  39     public ConnectionReconciliationTask(ReconciliationManager reconciliationManager, HwvtepConnectionManager
  40             connectionManager, InstanceIdentifier<?> nodeIid, DataObject configData) {
  41         super(reconciliationManager, connectionManager, nodeIid, configData);
  42
  43     }
  44
  45     @Override
  46     public boolean reconcileConfiguration(HwvtepConnectionManager connectionManager) {
  47         boolean result = false;
  48         connectionAttempt.incrementAndGet();
  49         InstanceIdentifier<Node> nIid = (InstanceIdentifier<Node>) nodeIid;
  50         HwvtepGlobalAugmentation hwvtepNode = (HwvtepGlobalAugmentation)configData;
  51
  52         LOG.info("Retry({}) connection to Ovsdb Node {} ", connectionAttempt.get(), hwvtepNode.getConnectionInfo());
  53         OvsdbClient client = null;
  54         try {
  55             client = connectionManager.connect(nIid, hwvtepNode);
  56             if (client != null) {
  57                 LOG.info("Successfully connected to Hwvtep Node {} ", hwvtepNode.getConnectionInfo());
  58                 result = true;
  59             } else {
  60                 LOG.warn("Connection retry({}) failed for {}.",
  61                         connectionAttempt.get(), hwvtepNode.getConnectionInfo());
  62             }
  63         } catch (UnknownHostException | ConnectException e) {
  64             LOG.warn("Connection retry({}) failed with exception. ",connectionAttempt.get(), e);
  65         }
  66         return result;
  67     }
  68
  69     @Override
  70     public void doRetry(boolean wasLastAttemptSuccessful) {
  71
  72         if( !wasLastAttemptSuccessful && connectionAttempt.get() <= MAX_ATTEMPT ) {
  73             reconciliationManager.enqueueForRetry(ConnectionReconciliationTask.this);
  74         } else {
  75             reconciliationManager.dequeue(this);
  76         }
  77     }
  78
  79     @Override
  80     public void checkReadinessAndProcess() {
  81         reconciliationManager.enqueue(this);
  82     }
  83
  84     @Override
  85     public long retryDelayInMills() {
  86         return connectionAttempt.get() * RETRY_INTERVAL_FACTOR;
  87     }
  88 }