2 * Copyright (c) 2016 Brocade Communications Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.ovsdb.southbound.reconciliation;
10 import com.google.common.base.Preconditions;
11 import org.opendaylight.ovsdb.southbound.OvsdbConnectionManager;
12 import org.opendaylight.ovsdb.southbound.reconciliation.connection.ConnectionReconciliationTask;
13 import org.opendaylight.yangtools.yang.binding.DataObject;
14 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
15 import org.slf4j.Logger;
16 import org.slf4j.LoggerFactory;
19 * Abstract implementation of a reconciliation task. Each new type of
20 * resource configuration reconciliation task should extend this class
21 * and implement the abstract methods.
23 public abstract class ReconciliationTask implements Runnable {
25 private static final Logger LOG = LoggerFactory.getLogger(ReconciliationTask.class);
27 protected final ReconciliationManager reconciliationManager;
28 protected final OvsdbConnectionManager connectionManager;
29 protected final InstanceIdentifier<?> nodeIid;
30 protected final DataObject configData;
32 protected ReconciliationTask(ReconciliationManager reconciliationManager, OvsdbConnectionManager connectionManager,
33 InstanceIdentifier<?> nodeIid,
34 DataObject configData) {
35 Preconditions.checkNotNull(reconciliationManager, "Reconciliation manager must not be null");
36 Preconditions.checkNotNull(connectionManager, "Connection manager must not be null");
37 Preconditions.checkNotNull(nodeIid, "Node Iid must not be null");
38 this.reconciliationManager = reconciliationManager;
39 this.connectionManager = connectionManager;
40 this.nodeIid = nodeIid;
41 this.configData = configData;
45 * Method contains task reconciliation logic. Please refer to
46 * {@link ConnectionReconciliationTask#reconcileConfiguration(OvsdbConnectionManager)}
48 * @param connectionManager Connection manager to get connection instance of the device
49 * @return True if reconciliation was successful, else false
51 public abstract boolean reconcileConfiguration(OvsdbConnectionManager connectionManager);
54 * Extended task should implement the logic that decides whether retry for the task
55 * is required or not. If retry is required but it does not requires any delay, submit
56 * the task immediately using {@link ReconciliationManager#enqueue(ReconciliationTask)}.
57 * If retry requires delay, use {@link ReconciliationManager#enqueueForRetry(ReconciliationTask)}
58 * and specify the delay using {@link #retryDelayInMills()}.
59 * If data store operation is required to decide if the task need retry, please implement
60 * it as an async operation and submit the task on the callback of the future.
62 * Note:Please do not write blocking data store operations
63 * {@link ConnectionReconciliationTask#doRetry(boolean)}
65 * @param wasPreviousAttemptSuccessful Status of the previous attempt
67 public abstract void doRetry(boolean wasPreviousAttemptSuccessful);
70 * Extended task should implement the logic that check the readiness of the task
71 * for execution. If task is ready for the execution, submit it for immediate
72 * execution using {@link ReconciliationManager#enqueue(ReconciliationTask)}.
73 * If task is not ready for execution yet, enqueue it again for delayed execution
74 * using {@link ReconciliationManager#enqueueForRetry(ReconciliationTask)}.
75 * To check the readiness of the task, if the data store operation is required, please
76 * implement it as an async operation and submit the task on the callback of the future.
78 * Note:Please do not write blocking data store operations
79 * {@link ConnectionReconciliationTask#doRetry(boolean)}
82 public abstract void checkReadinessAndProcess();
85 * Method returns the time interval for retrying the failed task.
86 * {@link ReconciliationTask#doRetry(boolean)}
89 public abstract long retryDelayInMills();
93 boolean status = this.reconcileConfiguration(connectionManager);
98 public boolean equals(Object obj) {
102 if (obj == null || getClass() != obj.getClass()) {
106 ReconciliationTask that = (ReconciliationTask) obj;
108 return nodeIid.equals(that.nodeIid);
112 public int hashCode() {
113 return getClass().hashCode() + nodeIid.hashCode();
118 public String toString() {
119 return "ReconciliationTask{ type=" + getClass().toString() + ", nodeIid=" + nodeIid + '}';