opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/TransactionChainProxyTest.java

   1 /*
   2  *
   3  *  Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   4  *
   5  *  This program and the accompanying materials are made available under the
   6  *  terms of the Eclipse Public License v1.0 which accompanies this distribution,
   7  *  and is available at http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  */
  10
  11 package org.opendaylight.controller.cluster.datastore;
  12
  13 import static org.junit.Assert.assertEquals;
  14 import static org.junit.Assert.fail;
  15 import static org.mockito.Matchers.anyObject;
  16 import static org.mockito.Matchers.eq;
  17 import static org.mockito.Matchers.isA;
  18 import static org.mockito.Mockito.doReturn;
  19 import static org.mockito.Mockito.mock;
  20 import static org.mockito.Mockito.never;
  21 import static org.mockito.Mockito.timeout;
  22 import static org.mockito.Mockito.times;
  23 import static org.mockito.Mockito.verify;
  24 import static org.opendaylight.controller.cluster.datastore.TransactionProxy.TransactionType.READ_WRITE;
  25 import static org.opendaylight.controller.cluster.datastore.TransactionProxy.TransactionType.WRITE_ONLY;
  26 import akka.actor.ActorRef;
  27 import java.util.concurrent.CountDownLatch;
  28 import java.util.concurrent.TimeUnit;
  29 import java.util.concurrent.atomic.AtomicReference;
  30 import org.junit.Assert;
  31 import org.junit.Test;
  32 import org.opendaylight.controller.cluster.datastore.messages.BatchedModifications;
  33 import org.opendaylight.controller.cluster.datastore.modification.WriteModification;
  34 import org.opendaylight.controller.cluster.datastore.shardstrategy.DefaultShardStrategy;
  35 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
  36 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  37 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  38 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  39 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransaction;
  40 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
  41 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  42 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  43 import scala.concurrent.Promise;
  44
  45 public class TransactionChainProxyTest extends AbstractTransactionProxyTest {
  46
  47     @SuppressWarnings("resource")
  48     @Test
  49     public void testNewReadOnlyTransaction() throws Exception {
  50
  51      DOMStoreTransaction dst = new TransactionChainProxy(mockActorContext).newReadOnlyTransaction();
  52          Assert.assertTrue(dst instanceof DOMStoreReadTransaction);
  53
  54     }
  55
  56     @SuppressWarnings("resource")
  57     @Test
  58     public void testNewReadWriteTransaction() throws Exception {
  59         DOMStoreTransaction dst = new TransactionChainProxy(mockActorContext).newReadWriteTransaction();
  60         Assert.assertTrue(dst instanceof DOMStoreReadWriteTransaction);
  61
  62     }
  63
  64     @SuppressWarnings("resource")
  65     @Test
  66     public void testNewWriteOnlyTransaction() throws Exception {
  67         DOMStoreTransaction dst = new TransactionChainProxy(mockActorContext).newWriteOnlyTransaction();
  68         Assert.assertTrue(dst instanceof DOMStoreWriteTransaction);
  69
  70     }
  71
  72     @Test
  73     public void testClose() throws Exception {
  74         new TransactionChainProxy(mockActorContext).close();
  75
  76         verify(mockActorContext, times(1)).broadcast(anyObject());
  77     }
  78
  79     @Test
  80     public void testTransactionChainsHaveUniqueId(){
  81         TransactionChainProxy one = new TransactionChainProxy(mock(ActorContext.class));
  82         TransactionChainProxy two = new TransactionChainProxy(mock(ActorContext.class));
  83
  84         Assert.assertNotEquals(one.getTransactionChainId(), two.getTransactionChainId());
  85     }
  86
  87     @Test
  88     public void testRateLimitingUsedInReadWriteTxCreation(){
  89         TransactionChainProxy txChainProxy = new TransactionChainProxy(mockActorContext);
  90
  91         txChainProxy.newReadWriteTransaction();
  92
  93         verify(mockActorContext, times(1)).acquireTxCreationPermit();
  94     }
  95
  96     @Test
  97     public void testRateLimitingUsedInWriteOnlyTxCreation(){
  98         TransactionChainProxy txChainProxy = new TransactionChainProxy(mockActorContext);
  99
 100         txChainProxy.newWriteOnlyTransaction();
 101
 102         verify(mockActorContext, times(1)).acquireTxCreationPermit();
 103     }
 104
 105
 106     @Test
 107     public void testRateLimitingNotUsedInReadOnlyTxCreation(){
 108         TransactionChainProxy txChainProxy = new TransactionChainProxy(mockActorContext);
 109
 110         txChainProxy.newReadOnlyTransaction();
 111
 112         verify(mockActorContext, times(0)).acquireTxCreationPermit();
 113     }
 114
 115     /**
 116      * Tests 2 successive chained write-only transactions and verifies the second transaction isn't
 117      * initiated until the first one completes its read future.
 118      */
 119     @Test
 120     public void testChainedWriteOnlyTransactions() throws Exception {
 121         dataStoreContextBuilder.writeOnlyTransactionOptimizationsEnabled(true);
 122
 123         TransactionChainProxy txChainProxy = new TransactionChainProxy(mockActorContext);
 124
 125         ActorRef txActorRef1 = setupActorContextWithoutInitialCreateTransaction(getSystem());
 126
 127         Promise<Object> batchedReplyPromise1 = akka.dispatch.Futures.promise();
 128         doReturn(batchedReplyPromise1.future()).when(mockActorContext).executeOperationAsync(
 129                 eq(actorSelection(txActorRef1)), isA(BatchedModifications.class));
 130
 131         DOMStoreWriteTransaction writeTx1 = txChainProxy.newWriteOnlyTransaction();
 132
 133         NormalizedNode<?, ?> writeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 134         writeTx1.write(TestModel.TEST_PATH, writeNode1);
 135
 136         writeTx1.ready();
 137
 138         verify(mockActorContext, times(1)).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 139
 140         verifyOneBatchedModification(txActorRef1, new WriteModification(TestModel.TEST_PATH, writeNode1), true);
 141
 142         ActorRef txActorRef2 = setupActorContextWithoutInitialCreateTransaction(getSystem());
 143
 144         expectBatchedModifications(txActorRef2, 1);
 145
 146         final NormalizedNode<?, ?> writeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
 147
 148         final DOMStoreWriteTransaction writeTx2 = txChainProxy.newWriteOnlyTransaction();
 149
 150         final AtomicReference<Exception> caughtEx = new AtomicReference<>();
 151         final CountDownLatch write2Complete = new CountDownLatch(1);
 152         new Thread() {
 153             @Override
 154             public void run() {
 155                 try {
 156                     writeTx2.write(TestModel.OUTER_LIST_PATH, writeNode2);
 157                 } catch (Exception e) {
 158                     caughtEx.set(e);
 159                 } finally {
 160                     write2Complete.countDown();
 161                 }
 162             }
 163         }.start();
 164
 165         assertEquals("Tx 2 write should've completed", true, write2Complete.await(5, TimeUnit.SECONDS));
 166
 167         if(caughtEx.get() != null) {
 168             throw caughtEx.get();
 169         }
 170
 171         try {
 172             verify(mockActorContext, times(1)).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 173         } catch (AssertionError e) {
 174             fail("Tx 2 should not have initiated until the Tx 1's ready future completed");
 175         }
 176
 177         batchedReplyPromise1.success(readyTxReply(txActorRef1.path().toString()).value().get().get());
 178
 179         // Tx 2 should've proceeded to find the primary shard.
 180         verify(mockActorContext, timeout(5000).times(2)).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 181     }
 182
 183     /**
 184      * Tests 2 successive chained read-write transactions and verifies the second transaction isn't
 185      * initiated until the first one completes its read future.
 186      */
 187     @Test
 188     public void testChainedReadWriteTransactions() throws Exception {
 189         TransactionChainProxy txChainProxy = new TransactionChainProxy(mockActorContext);
 190
 191         ActorRef txActorRef1 = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
 192
 193         expectBatchedModifications(txActorRef1, 1);
 194
 195         Promise<Object> readyReplyPromise1 = akka.dispatch.Futures.promise();
 196         doReturn(readyReplyPromise1.future()).when(mockActorContext).executeOperationAsync(
 197                 eq(actorSelection(txActorRef1)), isA(BatchedModifications.class));
 198
 199         DOMStoreWriteTransaction writeTx1 = txChainProxy.newReadWriteTransaction();
 200
 201         NormalizedNode<?, ?> writeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 202         writeTx1.write(TestModel.TEST_PATH, writeNode1);
 203
 204         writeTx1.ready();
 205
 206         verifyOneBatchedModification(txActorRef1, new WriteModification(TestModel.TEST_PATH, writeNode1), true);
 207
 208         String tx2MemberName = "tx2MemberName";
 209         doReturn(tx2MemberName).when(mockActorContext).getCurrentMemberName();
 210         ActorRef shardActorRef2 = setupActorContextWithoutInitialCreateTransaction(getSystem());
 211         ActorRef txActorRef2 = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE,
 212                 DataStoreVersions.CURRENT_VERSION, tx2MemberName, shardActorRef2);
 213
 214         expectBatchedModifications(txActorRef2, 1);
 215
 216         final NormalizedNode<?, ?> writeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
 217
 218         final DOMStoreWriteTransaction writeTx2 = txChainProxy.newReadWriteTransaction();
 219
 220         final AtomicReference<Exception> caughtEx = new AtomicReference<>();
 221         final CountDownLatch write2Complete = new CountDownLatch(1);
 222         new Thread() {
 223             @Override
 224             public void run() {
 225                 try {
 226                     writeTx2.write(TestModel.OUTER_LIST_PATH, writeNode2);
 227                 } catch (Exception e) {
 228                     caughtEx.set(e);
 229                 } finally {
 230                     write2Complete.countDown();
 231                 }
 232             }
 233         }.start();
 234
 235         assertEquals("Tx 2 write should've completed", true, write2Complete.await(5, TimeUnit.SECONDS));
 236
 237         if(caughtEx.get() != null) {
 238             throw caughtEx.get();
 239         }
 240
 241         try {
 242             verify(mockActorContext, never()).executeOperationAsync(eq(getSystem().actorSelection(shardActorRef2.path())),
 243                     eqCreateTransaction(tx2MemberName, READ_WRITE));
 244         } catch (AssertionError e) {
 245             fail("Tx 2 should not have initiated until the Tx 1's ready future completed");
 246         }
 247
 248         readyReplyPromise1.success(readyTxReply(txActorRef1.path().toString()).value().get().get());
 249
 250         verify(mockActorContext, timeout(5000)).executeOperationAsync(eq(getSystem().actorSelection(shardActorRef2.path())),
 251                 eqCreateTransaction(tx2MemberName, READ_WRITE));
 252     }
 253
 254     @Test(expected=IllegalStateException.class)
 255     public void testChainedWriteTransactionsWithPreviousTxNotReady() throws Exception {
 256         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY);
 257
 258         expectBatchedModifications(actorRef, 1);
 259
 260         TransactionChainProxy txChainProxy = new TransactionChainProxy(mockActorContext);
 261
 262         DOMStoreWriteTransaction writeTx1 = txChainProxy.newWriteOnlyTransaction();
 263
 264         NormalizedNode<?, ?> writeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 265         writeTx1.write(TestModel.TEST_PATH, writeNode1);
 266
 267         NormalizedNode<?, ?> writeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
 268
 269         txChainProxy.newWriteOnlyTransaction();
 270     }
 271 }