opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DatastoreContext.java

   1 /*
   2  * Copyright (c) 2014 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
   9 package org.opendaylight.controller.cluster.datastore;
  10
  11 import akka.util.Timeout;
  12 import com.google.common.annotations.VisibleForTesting;
  13 import com.google.common.base.Preconditions;
  14 import com.google.common.collect.Sets;
  15 import java.util.Set;
  16 import java.util.concurrent.TimeUnit;
  17 import org.apache.commons.lang3.text.WordUtils;
  18 import org.opendaylight.controller.cluster.common.actor.AkkaConfigurationReader;
  19 import org.opendaylight.controller.cluster.common.actor.FileAkkaConfigurationReader;
  20 import org.opendaylight.controller.cluster.raft.ConfigParams;
  21 import org.opendaylight.controller.cluster.raft.DefaultConfigParamsImpl;
  22 import org.opendaylight.controller.cluster.raft.PeerAddressResolver;
  23 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  24 import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStoreConfigProperties;
  25 import scala.concurrent.duration.Duration;
  26 import scala.concurrent.duration.FiniteDuration;
  27
  28 /**
  29  * Contains contextual data for a data store.
  30  *
  31  * @author Thomas Pantelis
  32  */
  33 public class DatastoreContext {
  34     public static final String METRICS_DOMAIN = "org.opendaylight.controller.cluster.datastore";
  35
  36     public static final Duration DEFAULT_SHARD_TRANSACTION_IDLE_TIMEOUT = Duration.create(10, TimeUnit.MINUTES);
  37     public static final int DEFAULT_OPERATION_TIMEOUT_IN_MS = 5000;
  38     public static final int DEFAULT_SHARD_TX_COMMIT_TIMEOUT_IN_SECONDS = 30;
  39     public static final int DEFAULT_JOURNAL_RECOVERY_BATCH_SIZE = 1000;
  40     public static final int DEFAULT_SNAPSHOT_BATCH_COUNT = 20000;
  41     public static final int DEFAULT_HEARTBEAT_INTERVAL_IN_MILLIS = 500;
  42     public static final int DEFAULT_ISOLATED_LEADER_CHECK_INTERVAL_IN_MILLIS = DEFAULT_HEARTBEAT_INTERVAL_IN_MILLIS * 10;
  43     public static final int DEFAULT_SHARD_TX_COMMIT_QUEUE_CAPACITY = 50000;
  44     public static final Timeout DEFAULT_SHARD_INITIALIZATION_TIMEOUT = new Timeout(5, TimeUnit.MINUTES);
  45     public static final Timeout DEFAULT_SHARD_LEADER_ELECTION_TIMEOUT = new Timeout(30, TimeUnit.SECONDS);
  46     public static final boolean DEFAULT_PERSISTENT = true;
  47     public static final FileAkkaConfigurationReader DEFAULT_CONFIGURATION_READER = new FileAkkaConfigurationReader();
  48     public static final int DEFAULT_SHARD_SNAPSHOT_DATA_THRESHOLD_PERCENTAGE = 12;
  49     public static final int DEFAULT_SHARD_ELECTION_TIMEOUT_FACTOR = 2;
  50     public static final int DEFAULT_TX_CREATION_INITIAL_RATE_LIMIT = 100;
  51     public static final String UNKNOWN_DATA_STORE_TYPE = "unknown";
  52     public static final int DEFAULT_SHARD_BATCHED_MODIFICATION_COUNT = 1000;
  53     public static final long DEFAULT_SHARD_COMMIT_QUEUE_EXPIRY_TIMEOUT_IN_MS = TimeUnit.MILLISECONDS.convert(2, TimeUnit.MINUTES);
  54     public static final int DEFAULT_SHARD_SNAPSHOT_CHUNK_SIZE = 2048000;
  55
  56     private static final Set<String> globalDatastoreTypes = Sets.newConcurrentHashSet();
  57
  58     private InMemoryDOMDataStoreConfigProperties dataStoreProperties;
  59     private Duration shardTransactionIdleTimeout = DatastoreContext.DEFAULT_SHARD_TRANSACTION_IDLE_TIMEOUT;
  60     private long operationTimeoutInMillis = DEFAULT_OPERATION_TIMEOUT_IN_MS;
  61     private String dataStoreMXBeanType;
  62     private int shardTransactionCommitTimeoutInSeconds = DEFAULT_SHARD_TX_COMMIT_TIMEOUT_IN_SECONDS;
  63     private int shardTransactionCommitQueueCapacity = DEFAULT_SHARD_TX_COMMIT_QUEUE_CAPACITY;
  64     private Timeout shardInitializationTimeout = DEFAULT_SHARD_INITIALIZATION_TIMEOUT;
  65     private Timeout shardLeaderElectionTimeout = DEFAULT_SHARD_LEADER_ELECTION_TIMEOUT;
  66     private boolean persistent = DEFAULT_PERSISTENT;
  67     private AkkaConfigurationReader configurationReader = DEFAULT_CONFIGURATION_READER;
  68     private long transactionCreationInitialRateLimit = DEFAULT_TX_CREATION_INITIAL_RATE_LIMIT;
  69     private final DefaultConfigParamsImpl raftConfig = new DefaultConfigParamsImpl();
  70     private String dataStoreName = UNKNOWN_DATA_STORE_TYPE;
  71     private LogicalDatastoreType logicalStoreType = LogicalDatastoreType.OPERATIONAL;
  72     private int shardBatchedModificationCount = DEFAULT_SHARD_BATCHED_MODIFICATION_COUNT;
  73     private boolean writeOnlyTransactionOptimizationsEnabled = true;
  74     private long shardCommitQueueExpiryTimeoutInMillis = DEFAULT_SHARD_COMMIT_QUEUE_EXPIRY_TIMEOUT_IN_MS;
  75     private boolean transactionDebugContextEnabled = false;
  76     private String shardManagerPersistenceId;
  77
  78     public static Set<String> getGlobalDatastoreTypes() {
  79         return globalDatastoreTypes;
  80     }
  81
  82     private DatastoreContext() {
  83         setShardJournalRecoveryLogBatchSize(DEFAULT_JOURNAL_RECOVERY_BATCH_SIZE);
  84         setSnapshotBatchCount(DEFAULT_SNAPSHOT_BATCH_COUNT);
  85         setHeartbeatInterval(DEFAULT_HEARTBEAT_INTERVAL_IN_MILLIS);
  86         setIsolatedLeaderCheckInterval(DEFAULT_ISOLATED_LEADER_CHECK_INTERVAL_IN_MILLIS);
  87         setSnapshotDataThresholdPercentage(DEFAULT_SHARD_SNAPSHOT_DATA_THRESHOLD_PERCENTAGE);
  88         setElectionTimeoutFactor(DEFAULT_SHARD_ELECTION_TIMEOUT_FACTOR);
  89         setShardSnapshotChunkSize(DEFAULT_SHARD_SNAPSHOT_CHUNK_SIZE);
  90     }
  91
  92     private DatastoreContext(DatastoreContext other) {
  93         this.dataStoreProperties = other.dataStoreProperties;
  94         this.shardTransactionIdleTimeout = other.shardTransactionIdleTimeout;
  95         this.operationTimeoutInMillis = other.operationTimeoutInMillis;
  96         this.dataStoreMXBeanType = other.dataStoreMXBeanType;
  97         this.shardTransactionCommitTimeoutInSeconds = other.shardTransactionCommitTimeoutInSeconds;
  98         this.shardTransactionCommitQueueCapacity = other.shardTransactionCommitQueueCapacity;
  99         this.shardInitializationTimeout = other.shardInitializationTimeout;
 100         this.shardLeaderElectionTimeout = other.shardLeaderElectionTimeout;
 101         this.persistent = other.persistent;
 102         this.configurationReader = other.configurationReader;
 103         this.transactionCreationInitialRateLimit = other.transactionCreationInitialRateLimit;
 104         this.dataStoreName = other.dataStoreName;
 105         this.logicalStoreType = other.logicalStoreType;
 106         this.shardBatchedModificationCount = other.shardBatchedModificationCount;
 107         this.writeOnlyTransactionOptimizationsEnabled = other.writeOnlyTransactionOptimizationsEnabled;
 108         this.shardCommitQueueExpiryTimeoutInMillis = other.shardCommitQueueExpiryTimeoutInMillis;
 109         this.transactionDebugContextEnabled = other.transactionDebugContextEnabled;
 110         this.shardManagerPersistenceId = other.shardManagerPersistenceId;
 111
 112         setShardJournalRecoveryLogBatchSize(other.raftConfig.getJournalRecoveryLogBatchSize());
 113         setSnapshotBatchCount(other.raftConfig.getSnapshotBatchCount());
 114         setHeartbeatInterval(other.raftConfig.getHeartBeatInterval().toMillis());
 115         setIsolatedLeaderCheckInterval(other.raftConfig.getIsolatedCheckIntervalInMillis());
 116         setSnapshotDataThresholdPercentage(other.raftConfig.getSnapshotDataThresholdPercentage());
 117         setElectionTimeoutFactor(other.raftConfig.getElectionTimeoutFactor());
 118         setCustomRaftPolicyImplementation(other.raftConfig.getCustomRaftPolicyImplementationClass());
 119         setShardSnapshotChunkSize(other.raftConfig.getSnapshotChunkSize());
 120         setPeerAddressResolver(other.raftConfig.getPeerAddressResolver());
 121     }
 122
 123     public static Builder newBuilder() {
 124         return new Builder(new DatastoreContext());
 125     }
 126
 127     public static Builder newBuilderFrom(DatastoreContext context) {
 128         return new Builder(new DatastoreContext(context));
 129     }
 130
 131     public InMemoryDOMDataStoreConfigProperties getDataStoreProperties() {
 132         return dataStoreProperties;
 133     }
 134
 135     public Duration getShardTransactionIdleTimeout() {
 136         return shardTransactionIdleTimeout;
 137     }
 138
 139     public String getDataStoreMXBeanType() {
 140         return dataStoreMXBeanType;
 141     }
 142
 143     public long getOperationTimeoutInMillis() {
 144         return operationTimeoutInMillis;
 145     }
 146
 147     public ConfigParams getShardRaftConfig() {
 148         return raftConfig;
 149     }
 150
 151     public int getShardTransactionCommitTimeoutInSeconds() {
 152         return shardTransactionCommitTimeoutInSeconds;
 153     }
 154
 155     public int getShardTransactionCommitQueueCapacity() {
 156         return shardTransactionCommitQueueCapacity;
 157     }
 158
 159     public Timeout getShardInitializationTimeout() {
 160         return shardInitializationTimeout;
 161     }
 162
 163     public Timeout getShardLeaderElectionTimeout() {
 164         return shardLeaderElectionTimeout;
 165     }
 166
 167     public boolean isPersistent() {
 168         return persistent;
 169     }
 170
 171     public AkkaConfigurationReader getConfigurationReader() {
 172         return configurationReader;
 173     }
 174
 175     public long getShardElectionTimeoutFactor(){
 176         return raftConfig.getElectionTimeoutFactor();
 177     }
 178
 179     public String getDataStoreName(){
 180         return dataStoreName;
 181     }
 182
 183     public LogicalDatastoreType getLogicalStoreType() {
 184         return logicalStoreType;
 185     }
 186
 187     /**
 188      * @deprecated Use {@link #getDataStoreName()} or {@link #getLogicalStoreType()} instead.
 189      */
 190     @Deprecated
 191     public String getDataStoreType(){
 192         return getDataStoreName();
 193     }
 194
 195     public long getTransactionCreationInitialRateLimit() {
 196         return transactionCreationInitialRateLimit;
 197     }
 198
 199     public String getShardManagerPersistenceId() {
 200         return shardManagerPersistenceId;
 201     }
 202
 203     private void setPeerAddressResolver(PeerAddressResolver resolver) {
 204         raftConfig.setPeerAddressResolver(resolver);
 205     }
 206
 207     private void setHeartbeatInterval(long shardHeartbeatIntervalInMillis){
 208         raftConfig.setHeartBeatInterval(new FiniteDuration(shardHeartbeatIntervalInMillis,
 209                 TimeUnit.MILLISECONDS));
 210     }
 211
 212     private void setShardJournalRecoveryLogBatchSize(int shardJournalRecoveryLogBatchSize){
 213         raftConfig.setJournalRecoveryLogBatchSize(shardJournalRecoveryLogBatchSize);
 214     }
 215
 216
 217     private void setIsolatedLeaderCheckInterval(long shardIsolatedLeaderCheckIntervalInMillis) {
 218         raftConfig.setIsolatedLeaderCheckInterval(
 219                 new FiniteDuration(shardIsolatedLeaderCheckIntervalInMillis, TimeUnit.MILLISECONDS));
 220     }
 221
 222     private void setElectionTimeoutFactor(long shardElectionTimeoutFactor) {
 223         raftConfig.setElectionTimeoutFactor(shardElectionTimeoutFactor);
 224     }
 225
 226     private void setCustomRaftPolicyImplementation(String customRaftPolicyImplementation) {
 227         raftConfig.setCustomRaftPolicyImplementationClass(customRaftPolicyImplementation);
 228     }
 229
 230     private void setSnapshotDataThresholdPercentage(int shardSnapshotDataThresholdPercentage) {
 231         raftConfig.setSnapshotDataThresholdPercentage(shardSnapshotDataThresholdPercentage);
 232     }
 233
 234     private void setSnapshotBatchCount(long shardSnapshotBatchCount) {
 235         raftConfig.setSnapshotBatchCount(shardSnapshotBatchCount);
 236     }
 237
 238     private void setShardSnapshotChunkSize(int shardSnapshotChunkSize) {
 239         raftConfig.setSnapshotChunkSize(shardSnapshotChunkSize);
 240     }
 241
 242     public int getShardBatchedModificationCount() {
 243         return shardBatchedModificationCount;
 244     }
 245
 246     public boolean isWriteOnlyTransactionOptimizationsEnabled() {
 247         return writeOnlyTransactionOptimizationsEnabled;
 248     }
 249
 250     public long getShardCommitQueueExpiryTimeoutInMillis() {
 251         return shardCommitQueueExpiryTimeoutInMillis;
 252     }
 253
 254     public boolean isTransactionDebugContextEnabled() {
 255         return transactionDebugContextEnabled;
 256     }
 257
 258     public int getShardSnapshotChunkSize() {
 259         return raftConfig.getSnapshotChunkSize();
 260     }
 261
 262     public static class Builder {
 263         private final DatastoreContext datastoreContext;
 264         private int maxShardDataChangeExecutorPoolSize =
 265                 InMemoryDOMDataStoreConfigProperties.DEFAULT_MAX_DATA_CHANGE_EXECUTOR_POOL_SIZE;
 266         private int maxShardDataChangeExecutorQueueSize =
 267                 InMemoryDOMDataStoreConfigProperties.DEFAULT_MAX_DATA_CHANGE_EXECUTOR_QUEUE_SIZE;
 268         private int maxShardDataChangeListenerQueueSize =
 269                 InMemoryDOMDataStoreConfigProperties.DEFAULT_MAX_DATA_CHANGE_LISTENER_QUEUE_SIZE;
 270         private int maxShardDataStoreExecutorQueueSize =
 271                 InMemoryDOMDataStoreConfigProperties.DEFAULT_MAX_DATA_STORE_EXECUTOR_QUEUE_SIZE;
 272
 273         private Builder(DatastoreContext datastoreContext) {
 274             this.datastoreContext = datastoreContext;
 275
 276             if(datastoreContext.getDataStoreProperties() != null) {
 277                 maxShardDataChangeExecutorPoolSize =
 278                         datastoreContext.getDataStoreProperties().getMaxDataChangeExecutorPoolSize();
 279                 maxShardDataChangeExecutorQueueSize =
 280                         datastoreContext.getDataStoreProperties().getMaxDataChangeExecutorQueueSize();
 281                 maxShardDataChangeListenerQueueSize =
 282                         datastoreContext.getDataStoreProperties().getMaxDataChangeListenerQueueSize();
 283                 maxShardDataStoreExecutorQueueSize =
 284                         datastoreContext.getDataStoreProperties().getMaxDataStoreExecutorQueueSize();
 285             }
 286         }
 287
 288         public Builder boundedMailboxCapacity(int boundedMailboxCapacity) {
 289             // TODO - this is defined in the yang DataStoreProperties but not currently used.
 290             return this;
 291         }
 292
 293         public Builder enableMetricCapture(boolean enableMetricCapture) {
 294             // TODO - this is defined in the yang DataStoreProperties but not currently used.
 295             return this;
 296         }
 297
 298
 299         public Builder shardTransactionIdleTimeout(long timeout, TimeUnit unit) {
 300             datastoreContext.shardTransactionIdleTimeout = Duration.create(timeout, unit);
 301             return this;
 302         }
 303
 304         public Builder shardTransactionIdleTimeoutInMinutes(long timeout) {
 305             return shardTransactionIdleTimeout(timeout, TimeUnit.MINUTES);
 306         }
 307
 308         public Builder operationTimeoutInSeconds(int operationTimeoutInSeconds) {
 309             datastoreContext.operationTimeoutInMillis = TimeUnit.SECONDS.toMillis(operationTimeoutInSeconds);
 310             return this;
 311         }
 312
 313         public Builder operationTimeoutInMillis(long operationTimeoutInMillis) {
 314             datastoreContext.operationTimeoutInMillis = operationTimeoutInMillis;
 315             return this;
 316         }
 317
 318         public Builder dataStoreMXBeanType(String dataStoreMXBeanType) {
 319             datastoreContext.dataStoreMXBeanType = dataStoreMXBeanType;
 320             return this;
 321         }
 322
 323         public Builder shardTransactionCommitTimeoutInSeconds(int shardTransactionCommitTimeoutInSeconds) {
 324             datastoreContext.shardTransactionCommitTimeoutInSeconds = shardTransactionCommitTimeoutInSeconds;
 325             return this;
 326         }
 327
 328         public Builder shardJournalRecoveryLogBatchSize(int shardJournalRecoveryLogBatchSize) {
 329             datastoreContext.setShardJournalRecoveryLogBatchSize(shardJournalRecoveryLogBatchSize);
 330             return this;
 331         }
 332
 333         public Builder shardSnapshotBatchCount(int shardSnapshotBatchCount) {
 334             datastoreContext.setSnapshotBatchCount(shardSnapshotBatchCount);
 335             return this;
 336         }
 337
 338         public Builder shardSnapshotDataThresholdPercentage(int shardSnapshotDataThresholdPercentage) {
 339             datastoreContext.setSnapshotDataThresholdPercentage(shardSnapshotDataThresholdPercentage);
 340             return this;
 341         }
 342
 343         public Builder shardHeartbeatIntervalInMillis(int shardHeartbeatIntervalInMillis) {
 344             datastoreContext.setHeartbeatInterval(shardHeartbeatIntervalInMillis);
 345             return this;
 346         }
 347
 348         public Builder shardTransactionCommitQueueCapacity(int shardTransactionCommitQueueCapacity) {
 349             datastoreContext.shardTransactionCommitQueueCapacity = shardTransactionCommitQueueCapacity;
 350             return this;
 351         }
 352
 353         public Builder shardInitializationTimeout(long timeout, TimeUnit unit) {
 354             datastoreContext.shardInitializationTimeout = new Timeout(timeout, unit);
 355             return this;
 356         }
 357
 358         public Builder shardInitializationTimeoutInSeconds(long timeout) {
 359             return shardInitializationTimeout(timeout, TimeUnit.SECONDS);
 360         }
 361
 362         public Builder shardLeaderElectionTimeout(long timeout, TimeUnit unit) {
 363             datastoreContext.shardLeaderElectionTimeout = new Timeout(timeout, unit);
 364             return this;
 365         }
 366
 367         public Builder shardLeaderElectionTimeoutInSeconds(long timeout) {
 368             return shardLeaderElectionTimeout(timeout, TimeUnit.SECONDS);
 369         }
 370
 371         public Builder configurationReader(AkkaConfigurationReader configurationReader){
 372             datastoreContext.configurationReader = configurationReader;
 373             return this;
 374         }
 375
 376         public Builder persistent(boolean persistent){
 377             datastoreContext.persistent = persistent;
 378             return this;
 379         }
 380
 381         public Builder shardIsolatedLeaderCheckIntervalInMillis(int shardIsolatedLeaderCheckIntervalInMillis) {
 382             datastoreContext.setIsolatedLeaderCheckInterval(shardIsolatedLeaderCheckIntervalInMillis);
 383             return this;
 384         }
 385
 386         public Builder shardElectionTimeoutFactor(long shardElectionTimeoutFactor){
 387             datastoreContext.setElectionTimeoutFactor(shardElectionTimeoutFactor);
 388             return this;
 389         }
 390
 391         public Builder transactionCreationInitialRateLimit(long initialRateLimit){
 392             datastoreContext.transactionCreationInitialRateLimit = initialRateLimit;
 393             return this;
 394         }
 395
 396         /**
 397          * @deprecated Use {@link #logicalStoreType(LogicalDatastoreType)} or {@link #dataStoreName(String)}.
 398          */
 399         @Deprecated
 400         public Builder dataStoreType(String dataStoreType){
 401             return dataStoreName(dataStoreType);
 402         }
 403
 404         public Builder logicalStoreType(LogicalDatastoreType logicalStoreType){
 405             datastoreContext.logicalStoreType = Preconditions.checkNotNull(logicalStoreType);
 406
 407             // Retain compatible naming
 408             switch (logicalStoreType) {
 409             case CONFIGURATION:
 410                 dataStoreName("config");
 411                 break;
 412             case OPERATIONAL:
 413                 dataStoreName("operational");
 414                 break;
 415             default:
 416                 dataStoreName(logicalStoreType.name());
 417             }
 418
 419             return this;
 420         }
 421
 422         public Builder dataStoreName(String dataStoreName){
 423             datastoreContext.dataStoreName = Preconditions.checkNotNull(dataStoreName);
 424             datastoreContext.dataStoreMXBeanType = "Distributed" + WordUtils.capitalize(dataStoreName) + "Datastore";
 425             return this;
 426         }
 427
 428         public Builder shardBatchedModificationCount(int shardBatchedModificationCount) {
 429             datastoreContext.shardBatchedModificationCount = shardBatchedModificationCount;
 430             return this;
 431         }
 432
 433         public Builder writeOnlyTransactionOptimizationsEnabled(boolean value) {
 434             datastoreContext.writeOnlyTransactionOptimizationsEnabled = value;
 435             return this;
 436         }
 437
 438         public Builder shardCommitQueueExpiryTimeoutInMillis(long value) {
 439             datastoreContext.shardCommitQueueExpiryTimeoutInMillis = value;
 440             return this;
 441         }
 442
 443         public Builder shardCommitQueueExpiryTimeoutInSeconds(long value) {
 444             datastoreContext.shardCommitQueueExpiryTimeoutInMillis = TimeUnit.MILLISECONDS.convert(
 445                     value, TimeUnit.SECONDS);
 446             return this;
 447         }
 448
 449         public Builder transactionDebugContextEnabled(boolean value) {
 450             datastoreContext.transactionDebugContextEnabled = value;
 451             return this;
 452         }
 453
 454         public Builder maxShardDataChangeExecutorPoolSize(int maxShardDataChangeExecutorPoolSize) {
 455             this.maxShardDataChangeExecutorPoolSize = maxShardDataChangeExecutorPoolSize;
 456             return this;
 457         }
 458
 459         public Builder maxShardDataChangeExecutorQueueSize(int maxShardDataChangeExecutorQueueSize) {
 460             this.maxShardDataChangeExecutorQueueSize = maxShardDataChangeExecutorQueueSize;
 461             return this;
 462         }
 463
 464         public Builder maxShardDataChangeListenerQueueSize(int maxShardDataChangeListenerQueueSize) {
 465             this.maxShardDataChangeListenerQueueSize = maxShardDataChangeListenerQueueSize;
 466             return this;
 467         }
 468
 469         public Builder maxShardDataStoreExecutorQueueSize(int maxShardDataStoreExecutorQueueSize) {
 470             this.maxShardDataStoreExecutorQueueSize = maxShardDataStoreExecutorQueueSize;
 471             return this;
 472         }
 473
 474         /**
 475          * For unit tests only.
 476          */
 477         @VisibleForTesting
 478         public Builder shardManagerPersistenceId(String id) {
 479             datastoreContext.shardManagerPersistenceId = id;
 480             return this;
 481         }
 482
 483         public DatastoreContext build() {
 484             datastoreContext.dataStoreProperties = InMemoryDOMDataStoreConfigProperties.create(
 485                     maxShardDataChangeExecutorPoolSize, maxShardDataChangeExecutorQueueSize,
 486                     maxShardDataChangeListenerQueueSize, maxShardDataStoreExecutorQueueSize);
 487
 488             if(datastoreContext.dataStoreName != null) {
 489                 globalDatastoreTypes.add(datastoreContext.dataStoreName);
 490             }
 491
 492             return datastoreContext;
 493         }
 494
 495         public Builder customRaftPolicyImplementation(String customRaftPolicyImplementation) {
 496             datastoreContext.setCustomRaftPolicyImplementation(customRaftPolicyImplementation);
 497             return this;
 498         }
 499
 500         public Builder shardSnapshotChunkSize(int shardSnapshotChunkSize) {
 501             datastoreContext.setShardSnapshotChunkSize(shardSnapshotChunkSize);
 502             return this;
 503         }
 504
 505         public Builder shardPeerAddressResolver(PeerAddressResolver resolver) {
 506             datastoreContext.setPeerAddressResolver(resolver);
 507             return this;
 508         }
 509     }
 510 }