Пример #1
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  public KsDef toThrift() {
    List<CfDef> cfDefs = new ArrayList<CfDef>();
    for (CFMetaData cfm : cfMetaData().values()) cfDefs.add(cfm.toThrift());
    KsDef ksdef = new KsDef(name, strategyClass.getName(), cfDefs);
    ksdef.setStrategy_options(strategyOptions);
    ksdef.setDurable_writes(durableWrites);

    return ksdef;
  }
Пример #2
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  public RowMutation toSchema(long timestamp) {
    RowMutation rm = new RowMutation(Table.SYSTEM_TABLE, SystemTable.getSchemaKSKey(name));
    ColumnFamily cf = rm.addOrGet(SystemTable.SCHEMA_KEYSPACES_CF);

    cf.addColumn(Column.create(name, timestamp, "name"));
    cf.addColumn(Column.create(durableWrites, timestamp, "durable_writes"));
    cf.addColumn(Column.create(strategyClass.getName(), timestamp, "strategy_class"));
    cf.addColumn(Column.create(json(strategyOptions), timestamp, "strategy_options"));

    for (CFMetaData cfm : cfMetaData.values()) cfm.toSchema(rm, timestamp);

    return rm;
  }
Пример #3
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  public KSMetaData validate() throws ConfigurationException {
    if (!CFMetaData.isNameValid(name))
      throw new ConfigurationException(
          String.format(
              "Invalid keyspace name: shouldn't be empty nor more than %s characters long (got \"%s\")",
              Schema.NAME_LENGTH, name));

    // Attempt to instantiate the ARS, which will throw a ConfigException if the strategy_options
    // aren't fully formed
    TokenMetadata tmd = StorageService.instance.getTokenMetadata();
    IEndpointSnitch eps = DatabaseDescriptor.getEndpointSnitch();
    AbstractReplicationStrategy.createReplicationStrategy(
        name, strategyClass, tmd, eps, strategyOptions);

    for (CFMetaData cfm : cfMetaData.values()) cfm.validate();

    return this;
  }
Пример #4
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  /**
   * Deserialize ColumnFamilies from low-level schema representation, all of them belong to the same
   * keyspace
   *
   * @param row
   * @return map containing name of the ColumnFamily and it's metadata for faster lookup
   */
  public static Map<String, CFMetaData> deserializeColumnFamilies(Row row) {
    if (row.cf == null) return Collections.emptyMap();

    Map<String, CFMetaData> cfms = new HashMap<String, CFMetaData>();
    UntypedResultSet results =
        QueryProcessor.resultify("SELECT * FROM system.schema_columnfamilies", row);
    for (UntypedResultSet.Row result : results) {
      CFMetaData cfm = CFMetaData.fromSchema(result);
      cfms.put(cfm.cfName, cfm);
    }

    for (CFMetaData cfm : cfms.values()) {
      Row columnRow = ColumnDefinition.readSchema(cfm.ksName, cfm.cfName);
      for (ColumnDefinition cd : ColumnDefinition.fromSchema(columnRow, cfm))
        cfm.column_metadata.put(cd.name, cd);
    }

    return cfms;
  }