southbound/southbound-impl/src/main/java/org/opendaylight/ovsdb/southbound/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.southbound.reconciliation.connection;
   9
  10 import java.net.UnknownHostException;
  11 import java.util.concurrent.atomic.AtomicInteger;
  12 import org.opendaylight.ovsdb.lib.OvsdbClient;
  13 import org.opendaylight.ovsdb.southbound.OvsdbConnectionManager;
  14 import org.opendaylight.ovsdb.southbound.reconciliation.ReconciliationManager;
  15 import org.opendaylight.ovsdb.southbound.reconciliation.ReconciliationTask;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  17 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  18 import org.opendaylight.yangtools.yang.binding.DataObject;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 public class ConnectionReconciliationTask extends ReconciliationTask {
  24
  25     private static final Logger LOG = LoggerFactory.getLogger(ConnectionReconciliationTask.class);
  26
  27     private static final int RETRY_INTERVAL_FACTOR = 10000;
  28     private static final int MAX_ATTEMPT = 10;
  29
  30     private AtomicInteger connectionAttempt = new AtomicInteger(0);
  31
  32     public ConnectionReconciliationTask(ReconciliationManager reconciliationManager, OvsdbConnectionManager
  33             connectionManager, InstanceIdentifier<?> nodeIid, DataObject configData) {
  34         super(reconciliationManager, connectionManager, nodeIid, configData);
  35
  36     }
  37
  38     @Override
  39     public boolean reconcileConfiguration(OvsdbConnectionManager connectionManager) {
  40         boolean result = false;
  41         connectionAttempt.incrementAndGet();
  42         InstanceIdentifier<Node> ndIid = (InstanceIdentifier<Node>) nodeIid;
  43         OvsdbNodeAugmentation ovsdbNode = (OvsdbNodeAugmentation)configData;
  44
  45         LOG.info("Retry({}) connection to Ovsdb Node {} ", connectionAttempt.get(), ovsdbNode.getConnectionInfo());
  46         OvsdbClient client = null;
  47         try {
  48             client = connectionManager.connect(ndIid, ovsdbNode);
  49             if (client != null) {
  50                 LOG.info("Successfully connected to Ovsdb Node {} ", ovsdbNode.getConnectionInfo());
  51                 result = true;
  52             } else {
  53                 LOG.warn("Connection retry({}) failed for {}.",
  54                         connectionAttempt.get(), ovsdbNode.getConnectionInfo());
  55             }
  56         } catch (UnknownHostException e) {
  57             LOG.warn("Connection retry({}) failed with exception. ",connectionAttempt.get(), e);
  58         }
  59         return result;
  60     }
  61
  62     @Override
  63     public void doRetry(boolean wasLastAttemptSuccessful) {
  64
  65         if (!wasLastAttemptSuccessful && connectionAttempt.get() <= MAX_ATTEMPT) {
  66             reconciliationManager.enqueueForRetry(ConnectionReconciliationTask.this);
  67         } else {
  68             reconciliationManager.dequeue(this);
  69         }
  70     }
  71
  72     @Override
  73     public void checkReadinessAndProcess() {
  74         reconciliationManager.enqueue(this);
  75     }
  76
  77     @Override
  78     public long retryDelayInMills() {
  79         return connectionAttempt.get() * RETRY_INTERVAL_FACTOR;
  80     }
  81 }