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Example 1 with FIELD_NAME_ELEMENT_CLASS

use of org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_ELEMENT_CLASS in project flink by apache.

the class DataTypeJsonDeserializer method deserializeClass.

private static DataType deserializeClass(LogicalType logicalType, @Nullable JsonNode parentNode, SerdeContext serdeContext) {
    if (parentNode == null) {
        return DataTypes.of(logicalType);
    }
    final DataType dataType;
    switch(logicalType.getTypeRoot()) {
        case ARRAY:
        case MULTISET:
            final DataType elementDataType = deserializeClass(logicalType.getChildren().get(0), parentNode.get(FIELD_NAME_ELEMENT_CLASS), serdeContext);
            dataType = new CollectionDataType(logicalType, elementDataType);
            break;
        case MAP:
            final MapType mapType = (MapType) logicalType;
            final DataType keyDataType = deserializeClass(mapType.getKeyType(), parentNode.get(FIELD_NAME_KEY_CLASS), serdeContext);
            final DataType valueDataType = deserializeClass(mapType.getValueType(), parentNode.get(FIELD_NAME_VALUE_CLASS), serdeContext);
            dataType = new KeyValueDataType(mapType, keyDataType, valueDataType);
            break;
        case ROW:
        case STRUCTURED_TYPE:
            final List<String> fieldNames = LogicalTypeChecks.getFieldNames(logicalType);
            final List<LogicalType> fieldTypes = LogicalTypeChecks.getFieldTypes(logicalType);
            final ArrayNode fieldNodes = (ArrayNode) parentNode.get(FIELD_NAME_FIELDS);
            final Map<String, JsonNode> fieldNodesByName = new HashMap<>();
            if (fieldNodes != null) {
                fieldNodes.forEach(fieldNode -> fieldNodesByName.put(fieldNode.get(FIELD_NAME_FIELD_NAME).asText(), fieldNode));
            }
            final List<DataType> fieldDataTypes = IntStream.range(0, fieldNames.size()).mapToObj(i -> {
                final String fieldName = fieldNames.get(i);
                final LogicalType fieldType = fieldTypes.get(i);
                return deserializeClass(fieldType, fieldNodesByName.get(fieldName), serdeContext);
            }).collect(Collectors.toList());
            dataType = new FieldsDataType(logicalType, fieldDataTypes);
            break;
        case DISTINCT_TYPE:
            final DistinctType distinctType = (DistinctType) logicalType;
            dataType = deserializeClass(distinctType.getSourceType(), parentNode, serdeContext);
            break;
        default:
            dataType = DataTypes.of(logicalType);
    }
    if (!parentNode.has(FIELD_NAME_CONVERSION_CLASS)) {
        return dataType;
    }
    final Class<?> conversionClass = loadClass(parentNode.get(FIELD_NAME_CONVERSION_CLASS).asText(), serdeContext, String.format("conversion class of data type '%s'", dataType));
    return dataType.bridgedTo(conversionClass);
}
Also used : IntStream(java.util.stream.IntStream) FIELD_NAME_ELEMENT_CLASS(org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_ELEMENT_CLASS) DataType(org.apache.flink.table.types.DataType) KeyValueDataType(org.apache.flink.table.types.KeyValueDataType) FIELD_NAME_VALUE_CLASS(org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_VALUE_CLASS) JsonParser(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonParser) HashMap(java.util.HashMap) JsonNode(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode) MapType(org.apache.flink.table.types.logical.MapType) ArrayNode(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ArrayNode) DeserializationContext(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.DeserializationContext) FIELD_NAME_FIELD_NAME(org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_FIELD_NAME) FIELD_NAME_CONVERSION_CLASS(org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_CONVERSION_CLASS) FIELD_NAME_FIELDS(org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_FIELDS) FieldsDataType(org.apache.flink.table.types.FieldsDataType) Map(java.util.Map) FIELD_NAME_KEY_CLASS(org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_KEY_CLASS) Nullable(javax.annotation.Nullable) DataTypes(org.apache.flink.table.api.DataTypes) IOException(java.io.IOException) Collectors(java.util.stream.Collectors) List(java.util.List) FIELD_NAME_TYPE(org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_TYPE) CollectionDataType(org.apache.flink.table.types.CollectionDataType) DistinctType(org.apache.flink.table.types.logical.DistinctType) LogicalType(org.apache.flink.table.types.logical.LogicalType) JsonSerdeUtil.loadClass(org.apache.flink.table.planner.plan.nodes.exec.serde.JsonSerdeUtil.loadClass) Internal(org.apache.flink.annotation.Internal) StdDeserializer(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.deser.std.StdDeserializer) LogicalTypeChecks(org.apache.flink.table.types.logical.utils.LogicalTypeChecks) FieldsDataType(org.apache.flink.table.types.FieldsDataType) HashMap(java.util.HashMap) CollectionDataType(org.apache.flink.table.types.CollectionDataType) KeyValueDataType(org.apache.flink.table.types.KeyValueDataType) LogicalType(org.apache.flink.table.types.logical.LogicalType) JsonNode(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode) MapType(org.apache.flink.table.types.logical.MapType) DistinctType(org.apache.flink.table.types.logical.DistinctType) DataType(org.apache.flink.table.types.DataType) KeyValueDataType(org.apache.flink.table.types.KeyValueDataType) FieldsDataType(org.apache.flink.table.types.FieldsDataType) CollectionDataType(org.apache.flink.table.types.CollectionDataType) ArrayNode(org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ArrayNode)

Aggregations

IOException (java.io.IOException)1 HashMap (java.util.HashMap)1 List (java.util.List)1 Map (java.util.Map)1 Collectors (java.util.stream.Collectors)1 IntStream (java.util.stream.IntStream)1 Nullable (javax.annotation.Nullable)1 Internal (org.apache.flink.annotation.Internal)1 JsonParser (org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonParser)1 DeserializationContext (org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.DeserializationContext)1 JsonNode (org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode)1 StdDeserializer (org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.deser.std.StdDeserializer)1 ArrayNode (org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.node.ArrayNode)1 DataTypes (org.apache.flink.table.api.DataTypes)1 FIELD_NAME_CONVERSION_CLASS (org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_CONVERSION_CLASS)1 FIELD_NAME_ELEMENT_CLASS (org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_ELEMENT_CLASS)1 FIELD_NAME_FIELDS (org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_FIELDS)1 FIELD_NAME_FIELD_NAME (org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_FIELD_NAME)1 FIELD_NAME_KEY_CLASS (org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_KEY_CLASS)1 FIELD_NAME_TYPE (org.apache.flink.table.planner.plan.nodes.exec.serde.DataTypeJsonSerializer.FIELD_NAME_TYPE)1