Examples of com.couchbase.client.vbucket.config.Config

Package com.couchbase.client.vbucket.config

Examples of com.couchbase.client.vbucket.config.Config

com.couchbase.client.vbucket.config.Config
A Config.

  /**
   * Updates the current list of seed nodes with a current one from the stored
   * configuration.
   */
  private void updateSeedNodes() {
    Config config = this.config.get().getConfig();


    List<String> clusterNodes = config.getRestEndpoints();
    if (!clusterNodes.isEmpty()) {
      List<URI> newNodes = new ArrayList<URI>();
      for (String clusterNode : clusterNodes) {
        try {
          newNodes.add(new URI(clusterNode));

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    return observeFuture;
  }


  private Map<MemcachedNode, ObserveResponse> observe(final String key,
    final long cas, final boolean toMaster, final boolean toReplica) {
    Config cfg = ((CouchbaseConnectionFactory) connFactory).getVBucketConfig();
    VBucketNodeLocator locator = (VBucketNodeLocator) mconn.getLocator();


    final int vb = locator.getVBucketIndex(key);
    List<MemcachedNode> bcastNodes = new ArrayList<MemcachedNode>();


    if (toMaster) {
      MemcachedNode primary = locator.getPrimary(key);
      if (primary != null) {
        bcastNodes.add(primary);
      }
    }


    if (toReplica) {
      for (int i = 0; i < cfg.getReplicasCount(); i++) {
        MemcachedNode replica = locator.getReplica(key, i);
        if (replica != null) {
          bcastNodes.add(replica);
        }
      }

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    }
    return shutdownResult;
  }


  private void checkObserveReplica(String key, int numPersist, int numReplica) {
    Config cfg = ((CouchbaseConnectionFactory) connFactory).getVBucketConfig();
    VBucketNodeLocator locator = (VBucketNodeLocator) mconn.getLocator();


    if(numReplica > 0) {
      int vBucketIndex = locator.getVBucketIndex(key);
      int currentReplicaNum = cfg.getReplica(vBucketIndex, numReplica-1);
      if (currentReplicaNum < 0) {
        throw new ObservedException("Currently, there is no replica node "
          + "available for the given replication index (" + numReplica + ").");
      }
    }


    int replicaCount = Math.min(locator.getAll().size() - 1, cfg.getReplicasCount());
    if (numReplica > replicaCount) {
      throw new ObservedException("Requested replication to " + numReplica
          + " node(s), but only " + replicaCount + " are available.");
    } else if (numPersist > replicaCount + 1) {
      throw new ObservedException("Requested persistence to " + (numPersist + 1)

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   * {@inheritDoc}
   */
  @Override
  public MemcachedNode getPrimary(String k) {
    TotalConfig totConfig = fullConfig.get();
    Config config = totConfig.getConfig();
    Map<String, MemcachedNode> nodesMap = totConfig.getNodesMap();
    int vbucket = config.getVbucketByKey(k);
    int serverNumber = config.getMaster(vbucket);


    if(serverNumber == -1) {
      getLogger().warn("The key "+ k +" pointed to vbucket "+ vbucket
        + ", for which no server is responsible in the cluster map (-1). This "
        + "can be an indication that either no replica is defined for a "
        + "failed server or more nodes have been failed over than replicas "
        + "defined.");
      return null;
    }


    String server = config.getServer(serverNumber);
    // choose appropriate MemcachedNode according to config data
    MemcachedNode pNode = nodesMap.get(server);
    if (pNode == null) {
      getLogger().error("The node locator does not have a primary for key"
        + " %s.  Wanted vbucket %s which should be on server %s.", k,

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   * @return the node where the given replica exists
   * @throws RuntimeException when no replica is defined for the given key
   */
  public MemcachedNode getReplica(String key, int index) {
    TotalConfig totConfig = fullConfig.get();
    Config config = totConfig.getConfig();
    Map<String, MemcachedNode> nodesMap = totConfig.getNodesMap();
    int vbucket = config.getVbucketByKey(key);
    int serverNumber = config.getReplica(vbucket, index);


    if(serverNumber == -1) {
      getLogger().warn("The key " + key + " pointed to vbucket "
        + vbucket + ", for which no server is responsible in the cluster map."
        + "This can be an indication that either no replica is defined for a "
        + "failed server or more nodes have been failed over than replicas "
        + "defined.");
      return null;
    }


    String server = config.getServer(serverNumber);
    MemcachedNode pNode = nodesMap.get(server);
    return pNode;
  }

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    return pNode;
  }


  public MemcachedNode getServerByIndex(int k) {
    TotalConfig totConfig = fullConfig.get();
    Config config = totConfig.getConfig();
    Map<String, MemcachedNode> nodesMap = totConfig.getNodesMap();


    String server = config.getServer(k);
    // choose appropriate MemcachedNode according to config data
    return nodesMap.get(server);
  }

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    throw new UnsupportedOperationException("Must be updated with a config");
  }


  public void updateLocator(final Collection<MemcachedNode> nodes,
      final Config newconf) {
    Config current = fullConfig.get().getConfig();


    ConfigDifference compareTo = current.compareTo(newconf);


    if (compareTo.isSequenceChanged() || compareTo.getVbucketsChanges() > 0
      || current.getCouchServers().size() != newconf.getCouchServers().size()) {
      getLogger().debug("Updating configuration, received updated configuration"
        + " with significant changes.");
      fullConfig.set(new TotalConfig(newconf,
              fillNodesEntries(newconf, nodes)));
    } else {

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   *
   * @param key the key
   * @return vbucket index
   */
  public int getVBucketIndex(String key) {
    Config config = fullConfig.get().getConfig();
    return config.getVbucketByKey(key);
  }

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   * @param key the key to check for.
   * @return a list of currently usable replica indexes.
   */
  public List<Integer> getReplicaIndexes(String key) {
    TotalConfig totConfig = fullConfig.get();
    Config config = totConfig.getConfig();
    int vbucket = config.getVbucketByKey(key);
    VBucket bucket = config.getVbuckets().get(vbucket);
    List<Integer> indexes = new ArrayList<Integer>();
    for (int i = 0; i < VBucket.MAX_REPLICAS; i++) {
      if (bucket.getReplica(i) != VBucket.REPLICA_NOT_USED) {
        indexes.add(i);
      }

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   * @param key the key to check for.
   * @return true if there is a master assigned for the key.
   */
  public boolean hasActiveMaster(String key) {
    TotalConfig totConfig = fullConfig.get();
    Config config = totConfig.getConfig();
    int vbucket = config.getVbucketByKey(key);
    VBucket bucket = config.getVbuckets().get(vbucket);
    return bucket.getMaster() != -1;
  }

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Related Classes of com.couchbase.client.vbucket.config.Config

com.couchbase.client.CouchbaseClient

com.couchbase.client.CouchbaseConnectionFactory

com.couchbase.client.vbucket.ConfigurationProviderHTTP

com.couchbase.client.vbucket.provider.BucketConfigurationProvider

com.couchbase.client.vbucket.VBucketNodeLocator

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