Java Code Examples for org.apache.calcite.rel.type.RelDataTypeImpl#proto()

/** Allows a sub-class to return an extension of {@link ModifiableViewTable}
 * by overriding this method. */
protected ModifiableViewTable modifiableViewTable(CalciteResult.AnalyzeViewResult parsed,
    String viewSql, List<String> schemaPath, List<String> viewPath,
    CalciteSchema schema) {
  final JavaTypeFactory typeFactory = (JavaTypeFactory) parsed.typeFactory;
  final Type elementType = typeFactory.getJavaClass(parsed.rowType);
  return new ModifiableViewTable(elementType,
      RelDataTypeImpl.proto(parsed.rowType), viewSql, schemaPath, viewPath,
      parsed.table, Schemas.path(schema.root(), parsed.tablePath),
      parsed.constraint, parsed.columnMapping);
}
 

/** Allows a sub-class to return an extension of {@link ViewTable} by
 * overriding this method. */
protected ViewTable viewTable(CalciteResult.AnalyzeViewResult parsed,
    String viewSql, List<String> schemaPath, List<String> viewPath) {
  final JavaTypeFactory typeFactory = (JavaTypeFactory) parsed.typeFactory;
  final Type elementType = typeFactory.getJavaClass(parsed.rowType);
  return new ViewTable(elementType,
      RelDataTypeImpl.proto(parsed.rowType), viewSql, schemaPath, viewPath);
}
 

@Override
public RelDataType getRowType(RelDataTypeFactory typeFactory) {
    if (getRelDef() == null) {
        return null;
    }
    RelProtoDataType protoRowType = RelDataTypeImpl.proto(getRowType());
    return protoRowType.apply(typeFactory);
}
 

/**
 * new ArrayList<>()
 * Creates a DataTable.
 */
public DataTable(RelDataType rowType, List rows) {
  super();
  this.rowType = Objects.requireNonNull(rowType);
  this.protoRowType = RelDataTypeImpl.proto(rowType);
  this.rows = rows;

}
 

@Override
RelProtoDataType getRelDataType(
		DatabaseMetaData metaData,
		String catalogName,
		String schemaName,
		String tableName
) throws SQLException {
	if (journalledTableKeys.containsKey(tableName)) {
		// 1: Find columns for journal table
		RelDataType relDataType = super
				.getRelDataType(metaData, catalogName, schemaName, journalNameFor(tableName))
				.apply(new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT) {
					@Override
					public RelDataType copyType(RelDataType type) {
						return type;
					}
				});

		RelDataTypeFactory.FieldInfoBuilder fieldInfo = new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT).builder();

		// 2: Filter out journal-implementation columns
		for (RelDataTypeField field : relDataType.getFieldList()) {
			String fieldName = field.getName();
			if (fieldName.equals(versionField) || fieldName.equals(subsequentVersionField)) {
				continue;
			}
			fieldInfo.add(field);
		}

		return RelDataTypeImpl.proto(fieldInfo.build());
	} else {
		return super.getRelDataType(metaData, catalogName, schemaName, tableName);
	}
}
 

public CsvTable create(SchemaPlus schema, String name,
    Map<String, Object> operand, RelDataType rowType) {
  String fileName = (String) operand.get("file");
  final File base =
      (File) operand.get(ModelHandler.ExtraOperand.BASE_DIRECTORY.camelName);
  final Source source = Sources.file(base, fileName);
  final RelProtoDataType protoRowType =
      rowType != null ? RelDataTypeImpl.proto(rowType) : null;
  return new CsvScannableTable(source, protoRowType);
}
 

@Override public Table create(SchemaPlus schema, String tableName, Map operand,
    RelDataType rowType) {
  final RedisSchema redisSchema = schema.unwrap(RedisSchema.class);
  final RelProtoDataType protoRowType =
      rowType != null ? RelDataTypeImpl.proto(rowType) : null;
  return RedisTable.create(redisSchema, tableName, operand, protoRowType);
}
 

/** Executes a {@code CREATE MATERIALIZED VIEW} command. */
public void execute(SqlCreateMaterializedView create,
    CalcitePrepare.Context context) {
  final Pair<CalciteSchema, String> pair = schema(context, true, create.name);
  if (pair.left.plus().getTable(pair.right) != null) {
    // Materialized view exists.
    if (!create.ifNotExists) {
      // They did not specify IF NOT EXISTS, so give error.
      throw SqlUtil.newContextException(create.name.getParserPosition(),
          RESOURCE.tableExists(pair.right));
    }
    return;
  }
  final SqlNode q = renameColumns(create.columnList, create.query);
  final String sql = q.toSqlString(CalciteSqlDialect.DEFAULT).getSql();
  final List<String> schemaPath = pair.left.path(null);
  final ViewTableMacro viewTableMacro =
      ViewTable.viewMacro(pair.left.plus(), sql, schemaPath,
          context.getObjectPath(), false);
  final TranslatableTable x = viewTableMacro.apply(ImmutableList.of());
  final RelDataType rowType = x.getRowType(context.getTypeFactory());

  // Table does not exist. Create it.
  final MaterializedViewTable table =
      new MaterializedViewTable(pair.right, RelDataTypeImpl.proto(rowType));
  pair.left.add(pair.right, table);
  populate(create.name, create.query, context);
  table.key =
      MaterializationService.instance().defineMaterialization(pair.left, null,
          sql, schemaPath, pair.right, true, true);
}
 

RelProtoDataType getRelDataType(DatabaseMetaData metaData, String catalogName,
    String schemaName, String tableName) throws SQLException {
  final ResultSet resultSet =
      metaData.getColumns(catalogName, schemaName, tableName, null);

  // Temporary type factory, just for the duration of this method. Allowable
  // because we're creating a proto-type, not a type; before being used, the
  // proto-type will be copied into a real type factory.
  final RelDataTypeFactory typeFactory =
      new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
  final RelDataTypeFactory.Builder fieldInfo = typeFactory.builder();
  while (resultSet.next()) {
    final String columnName = resultSet.getString(4);
    final int dataType = resultSet.getInt(5);
    final String typeString = resultSet.getString(6);
    final int precision;
    final int scale;
    switch (SqlType.valueOf(dataType)) {
    case TIMESTAMP:
    case TIME:
      precision = resultSet.getInt(9); // SCALE
      scale = 0;
      break;
    default:
      precision = resultSet.getInt(7); // SIZE
      scale = resultSet.getInt(9); // SCALE
      break;
    }
    RelDataType sqlType =
        sqlType(typeFactory, dataType, precision, scale, typeString);
    boolean nullable = resultSet.getInt(11) != DatabaseMetaData.columnNoNulls;
    fieldInfo.add(columnName, sqlType).nullable(nullable);
  }
  resultSet.close();
  return RelDataTypeImpl.proto(fieldInfo.build());
}
 

/** Allows a sub-class to return an extension of {@link ModifiableViewTable}
 * by overriding this method. */
protected ModifiableViewTable modifiableViewTable(CalcitePrepare.AnalyzeViewResult parsed,
    String viewSql, List<String> schemaPath, List<String> viewPath,
    CalciteSchema schema) {
  final JavaTypeFactory typeFactory = (JavaTypeFactory) parsed.typeFactory;
  final Type elementType = typeFactory.getJavaClass(parsed.rowType);
  return new ModifiableViewTable(elementType,
      RelDataTypeImpl.proto(parsed.rowType), viewSql, schemaPath, viewPath,
      parsed.table, Schemas.path(schema.root(), parsed.tablePath),
      parsed.constraint, parsed.columnMapping);
}
 

/** Allows a sub-class to return an extension of {@link ViewTable} by
 * overriding this method. */
protected ViewTable viewTable(CalcitePrepare.AnalyzeViewResult parsed,
    String viewSql, List<String> schemaPath, List<String> viewPath) {
  final JavaTypeFactory typeFactory = (JavaTypeFactory) parsed.typeFactory;
  final Type elementType = typeFactory.getJavaClass(parsed.rowType);
  return new ViewTable(elementType,
      RelDataTypeImpl.proto(parsed.rowType), viewSql, schemaPath, viewPath);
}
 

@Test void testLoadSorted() {
  final JavaTypeFactoryImpl typeFactory =
      new JavaTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
  final RelDataType rowType =
      typeFactory.builder()
          .add("empid", typeFactory.createType(int.class))
          .add("deptno", typeFactory.createType(int.class))
          .add("name", typeFactory.createType(String.class))
          .build();
  final Enumerable<Object[]> enumerable =
      Linq4j.asEnumerable(
          Arrays.asList(
              new Object[]{100, 10, "Bill"},
              new Object[]{200, 20, "Eric"},
              new Object[]{150, 10, "Sebastian"},
              new Object[]{160, 10, "Theodore"}));
  final ColumnLoader<Object[]> loader =
      new ColumnLoader<Object[]>(typeFactory, enumerable,
          RelDataTypeImpl.proto(rowType), null);
  checkColumn(
      loader.representationValues.get(0),
      ArrayTable.RepresentationType.BIT_SLICED_PRIMITIVE_ARRAY,
      "Column(representation=BitSlicedPrimitiveArray(ordinal=0, bitCount=8, primitive=INT, signed=false), value=[100, 150, 160, 200, 0, 0, 0, 0])");
  checkColumn(
      loader.representationValues.get(1),
      ArrayTable.RepresentationType.BIT_SLICED_PRIMITIVE_ARRAY,
      "Column(representation=BitSlicedPrimitiveArray(ordinal=1, bitCount=5, primitive=INT, signed=false), value=[10, 10, 10, 20, 0, 0, 0, 0, 0, 0, 0, 0])");
  checkColumn(
      loader.representationValues.get(2),
      ArrayTable.RepresentationType.OBJECT_ARRAY,
      "Column(representation=ObjectArray(ordinal=2), value=[Bill, Sebastian, Theodore, Eric])");
}
 

/** As {@link #testLoadSorted()} but column #1 is the unique column, not
 * column #0. The algorithm needs to go back and permute the values of
 * column #0 after it discovers that column #1 is unique and sorts by it. */
@Test void testLoadSorted2() {
  final JavaTypeFactoryImpl typeFactory =
      new JavaTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
  final RelDataType rowType =
      typeFactory.builder()
          .add("deptno", typeFactory.createType(int.class))
          .add("empid", typeFactory.createType(int.class))
          .add("name", typeFactory.createType(String.class))
          .build();
  final Enumerable<Object[]> enumerable =
      Linq4j.asEnumerable(
          Arrays.asList(
              new Object[]{10, 100, "Bill"},
              new Object[]{20, 200, "Eric"},
              new Object[]{30, 150, "Sebastian"},
              new Object[]{10, 160, "Theodore"}));
  final ColumnLoader<Object[]> loader =
      new ColumnLoader<Object[]>(typeFactory, enumerable,
          RelDataTypeImpl.proto(rowType), null);
  // Note that values have been sorted with {20, 200, Eric} last because the
  // value 200 is the highest value of empid, the unique column.
  checkColumn(
      loader.representationValues.get(0),
      ArrayTable.RepresentationType.BIT_SLICED_PRIMITIVE_ARRAY,
      "Column(representation=BitSlicedPrimitiveArray(ordinal=0, bitCount=5, primitive=INT, signed=false), value=[10, 30, 10, 20, 0, 0, 0, 0, 0, 0, 0, 0])");
  checkColumn(
      loader.representationValues.get(1),
      ArrayTable.RepresentationType.BIT_SLICED_PRIMITIVE_ARRAY,
      "Column(representation=BitSlicedPrimitiveArray(ordinal=1, bitCount=8, primitive=INT, signed=false), value=[100, 150, 160, 200, 0, 0, 0, 0])");
  checkColumn(
      loader.representationValues.get(2),
      ArrayTable.RepresentationType.OBJECT_ARRAY,
      "Column(representation=ObjectArray(ordinal=2), value=[Bill, Sebastian, Theodore, Eric])");
}
 

@Override protected ModifiableViewTable modifiableViewTable(
    CalcitePrepare.AnalyzeViewResult parsed, String viewSql,
    List<String> schemaPath, List<String> viewPath, CalciteSchema schema) {
  final JavaTypeFactory typeFactory = (JavaTypeFactory) parsed.typeFactory;
  final Type elementType = typeFactory.getJavaClass(parsed.rowType);
  return new MockModifiableViewTable(elementType,
      RelDataTypeImpl.proto(parsed.rowType), viewSql, schemaPath, viewPath,
      parsed.table, Schemas.path(schema.root(), parsed.tablePath),
      parsed.constraint, parsed.columnMapping);
}
 

RelProtoDataType getRelDataType(String collection) {
  // Temporary type factory, just for the duration of this method. Allowable
  // because we're creating a proto-type, not a type; before being used, the
  // proto-type will be copied into a real type factory.
  final RelDataTypeFactory typeFactory = new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
  final RelDataTypeFactory.Builder fieldInfo = typeFactory.builder();
  Map<String, LukeResponse.FieldInfo> luceneFieldInfoMap = getFieldInfo(collection);

  for(Map.Entry<String, LukeResponse.FieldInfo> entry : luceneFieldInfoMap.entrySet()) {
    LukeResponse.FieldInfo luceneFieldInfo = entry.getValue();

    String luceneFieldType = luceneFieldInfo.getType();
    // SOLR-13414: Luke can return a field definition with no type in rare situations
    if(luceneFieldType == null) {
      continue;
    }

    RelDataType type;
    switch (luceneFieldType) {
      case "string":
        type = typeFactory.createJavaType(String.class);
        break;
      case "tint":
      case "tlong":
      case "int":
      case "long":
      case "pint":
      case "plong":
        type = typeFactory.createJavaType(Long.class);
        break;
      case "tfloat":
      case "tdouble":
      case "float":
      case "double":
      case "pfloat":
      case "pdouble":
        type = typeFactory.createJavaType(Double.class);
        break;
      default:
        type = typeFactory.createJavaType(String.class);
    }

    /*
    EnumSet<FieldFlag> flags = luceneFieldInfo.parseFlags(luceneFieldInfo.getSchema());
    if(flags != null && flags.contains(FieldFlag.MULTI_VALUED)) {
      type = typeFactory.createArrayType(type, -1);
    }
    */

    fieldInfo.add(entry.getKey(), type).nullable(true);
  }
  fieldInfo.add("_query_",typeFactory.createJavaType(String.class));
  fieldInfo.add("score",typeFactory.createJavaType(Double.class));

  return RelDataTypeImpl.proto(fieldInfo.build());
}
 

@Override public void onRegister(RelDataTypeFactory typeFactory) {
  super.onRegister(typeFactory);
  // To simulate getRowType() behavior in ViewTable.
  final RelProtoDataType protoRowType = RelDataTypeImpl.proto(rowType);
  rowType = protoRowType.apply(typeFactory);
}