opendaylight/md-sal/sal-remoterpc-connector/src/test/java/org/opendaylight/controller/remote/rpc/registry/gossip/BucketStoreTest.java

   1 /*
   2  * Copyright (c) 2014 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.controller.remote.rpc.registry.gossip;
   9
  10 import akka.actor.ActorSystem;
  11 import akka.actor.Address;
  12 import akka.actor.Props;
  13 import akka.testkit.TestActorRef;
  14 import com.typesafe.config.ConfigFactory;
  15 import java.util.HashMap;
  16 import java.util.Map;
  17 import org.junit.AfterClass;
  18 import org.junit.Assert;
  19 import org.junit.BeforeClass;
  20 import org.junit.Test;
  21 import org.opendaylight.controller.remote.rpc.RemoteRpcProviderConfig;
  22 import org.opendaylight.controller.remote.rpc.TerminationMonitor;
  23
  24 public class BucketStoreTest {
  25
  26     /**
  27      * Dummy class to eliminate rawtype warnings.
  28      *
  29      * @author gwu
  30      *
  31      */
  32     private static class T implements Copier<T> {
  33         @Override
  34         public T copy() {
  35             return new T();
  36         }
  37     }
  38
  39     private static ActorSystem system;
  40
  41     @BeforeClass
  42     public static void setup() {
  43
  44         system = ActorSystem.create("opendaylight-rpc", ConfigFactory.load().getConfig("unit-test"));
  45         system.actorOf(Props.create(TerminationMonitor.class), "termination-monitor");
  46     }
  47
  48     @AfterClass
  49     public static void teardown() {
  50         system.shutdown();
  51     }
  52
  53     /**
  54      * Given remote buckets
  55      * Should merge with local copy of remote buckets
  56      */
  57     @Test
  58     public void testReceiveUpdateRemoteBuckets(){
  59
  60         BucketStore<T> store = createStore();
  61
  62         Address localAddress = system.provider().getDefaultAddress();
  63         Bucket<T> localBucket = new BucketImpl<>();
  64
  65         Address a1 = new Address("tcp", "system1");
  66         Address a2 = new Address("tcp", "system2");
  67         Address a3 = new Address("tcp", "system3");
  68
  69         Bucket<T> b1 = new BucketImpl<>();
  70         Bucket<T> b2 = new BucketImpl<>();
  71         Bucket<T> b3 = new BucketImpl<>();
  72
  73         Map<Address, Bucket<T>> remoteBuckets = new HashMap<>(3);
  74         remoteBuckets.put(a1, b1);
  75         remoteBuckets.put(a2, b2);
  76         remoteBuckets.put(a3, b3);
  77         remoteBuckets.put(localAddress, localBucket);
  78
  79         //Given remote buckets
  80         store.receiveUpdateRemoteBuckets(remoteBuckets);
  81
  82         //Should NOT contain local bucket
  83         //Should contain ONLY 3 entries i.e a1, a2, a3
  84         Map<Address, Bucket<T>> remoteBucketsInStore = store.getRemoteBuckets();
  85         Assert.assertFalse("remote buckets contains local bucket", remoteBucketsInStore.containsKey(localAddress));
  86         Assert.assertTrue(remoteBucketsInStore.size() == 3);
  87
  88         //Add a new remote bucket
  89         Address a4 = new Address("tcp", "system4");
  90         Bucket<T> b4 = new BucketImpl<T>();
  91         remoteBuckets.clear();
  92         remoteBuckets.put(a4, b4);
  93         store.receiveUpdateRemoteBuckets(remoteBuckets);
  94
  95         //Should contain a4
  96         //Should contain 4 entries now i.e a1, a2, a3, a4
  97         remoteBucketsInStore = store.getRemoteBuckets();
  98         Assert.assertTrue("Does not contain a4", remoteBucketsInStore.containsKey(a4));
  99         Assert.assertTrue(remoteBucketsInStore.size() == 4);
 100
 101         //Update a bucket
 102         Bucket<T> b3_new = new BucketImpl<T>();
 103         remoteBuckets.clear();
 104         remoteBuckets.put(a3, b3_new);
 105         remoteBuckets.put(a1, null);
 106         remoteBuckets.put(a2, null);
 107         store.receiveUpdateRemoteBuckets(remoteBuckets);
 108
 109         //Should only update a3
 110         remoteBucketsInStore = store.getRemoteBuckets();
 111         Bucket<T> b3_inStore = remoteBucketsInStore.get(a3);
 112         Assert.assertEquals(b3_new.getVersion(), b3_inStore.getVersion());
 113
 114         //Should NOT update a1 and a2
 115         Bucket<T> b1_inStore = remoteBucketsInStore.get(a1);
 116         Bucket<T> b2_inStore = remoteBucketsInStore.get(a2);
 117         Assert.assertEquals(b1.getVersion(), b1_inStore.getVersion());
 118         Assert.assertEquals(b2.getVersion(), b2_inStore.getVersion());
 119         Assert.assertTrue(remoteBucketsInStore.size() == 4);
 120
 121         //Should update versions map
 122         //versions map contains versions for all remote buckets (4).
 123         Map<Address, Long> versionsInStore = store.getVersions();
 124         Assert.assertEquals(4, versionsInStore.size());
 125         Assert.assertEquals(b1.getVersion(), versionsInStore.get(a1));
 126         Assert.assertEquals(b2.getVersion(), versionsInStore.get(a2));
 127         Assert.assertEquals(b3_new.getVersion(), versionsInStore.get(a3));
 128         Assert.assertEquals(b4.getVersion(), versionsInStore.get(a4));
 129
 130         //Send older version of bucket
 131         remoteBuckets.clear();
 132         remoteBuckets.put(a3, b3);
 133         store.receiveUpdateRemoteBuckets(remoteBuckets);
 134
 135         //Should NOT update a3
 136         remoteBucketsInStore = store.getRemoteBuckets();
 137         b3_inStore = remoteBucketsInStore.get(a3);
 138         Assert.assertTrue(b3_inStore.getVersion().longValue() == b3_new.getVersion().longValue());
 139
 140     }
 141
 142     /**
 143      * Create BucketStore actor and returns the underlying instance of BucketStore class.
 144      *
 145      * @return instance of BucketStore class
 146      */
 147     private static BucketStore<T> createStore(){
 148         final Props props = Props.create(BucketStore.class, new RemoteRpcProviderConfig(system.settings().config()));
 149         final TestActorRef<BucketStore<T>> testRef = TestActorRef.create(system, props, "testStore");
 150         return testRef.underlyingActor();
 151     }
 152
 153 }