Examples with AsyncFunction org.apache.flink.streaming.api.functions.async.AsyncFunction used on opensource projects

Example 1 with AsyncFunction

use of org.apache.flink.streaming.api.functions.async.AsyncFunction in project flink by apache.

the class CommonExecLookupJoin method createAsyncLookupJoin.

@SuppressWarnings("unchecked")
private StreamOperatorFactory<RowData> createAsyncLookupJoin(RelOptTable temporalTable, ExecNodeConfig config, Map<Integer, LookupJoinUtil.LookupKey> allLookupKeys, AsyncTableFunction<Object> asyncLookupFunction, RelBuilder relBuilder, RowType inputRowType, RowType tableSourceRowType, RowType resultRowType, boolean isLeftOuterJoin) {
    int asyncBufferCapacity = config.get(ExecutionConfigOptions.TABLE_EXEC_ASYNC_LOOKUP_BUFFER_CAPACITY);
    long asyncTimeout = config.get(ExecutionConfigOptions.TABLE_EXEC_ASYNC_LOOKUP_TIMEOUT).toMillis();
    DataTypeFactory dataTypeFactory = ShortcutUtils.unwrapContext(relBuilder).getCatalogManager().getDataTypeFactory();
    LookupJoinCodeGenerator.GeneratedTableFunctionWithDataType<AsyncFunction<RowData, Object>> generatedFuncWithType = LookupJoinCodeGenerator.generateAsyncLookupFunction(config.getTableConfig(), dataTypeFactory, inputRowType, tableSourceRowType, resultRowType, allLookupKeys, LookupJoinUtil.getOrderedLookupKeys(allLookupKeys.keySet()), asyncLookupFunction, StringUtils.join(temporalTable.getQualifiedName(), "."));
    RowType rightRowType = Optional.ofNullable(temporalTableOutputType).map(FlinkTypeFactory::toLogicalRowType).orElse(tableSourceRowType);
    // a projection or filter after table source scan
    GeneratedResultFuture<TableFunctionResultFuture<RowData>> generatedResultFuture = LookupJoinCodeGenerator.generateTableAsyncCollector(config.getTableConfig(), "TableFunctionResultFuture", inputRowType, rightRowType, JavaScalaConversionUtil.toScala(Optional.ofNullable(joinCondition)));
    DataStructureConverter<?, ?> fetcherConverter = DataStructureConverters.getConverter(generatedFuncWithType.dataType());
    AsyncFunction<RowData, RowData> asyncFunc;
    if (existCalcOnTemporalTable) {
        // a projection or filter after table source scan
        GeneratedFunction<FlatMapFunction<RowData, RowData>> generatedCalc = LookupJoinCodeGenerator.generateCalcMapFunction(config.getTableConfig(), JavaScalaConversionUtil.toScala(projectionOnTemporalTable), filterOnTemporalTable, temporalTableOutputType, tableSourceRowType);
        asyncFunc = new AsyncLookupJoinWithCalcRunner(generatedFuncWithType.tableFunc(), (DataStructureConverter<RowData, Object>) fetcherConverter, generatedCalc, generatedResultFuture, InternalSerializers.create(rightRowType), isLeftOuterJoin, asyncBufferCapacity);
    } else {
        // right type is the same as table source row type, because no calc after temporal table
        asyncFunc = new AsyncLookupJoinRunner(generatedFuncWithType.tableFunc(), (DataStructureConverter<RowData, Object>) fetcherConverter, generatedResultFuture, InternalSerializers.create(rightRowType), isLeftOuterJoin, asyncBufferCapacity);
    }
    // when the downstream do not need orderness
    return new AsyncWaitOperatorFactory<>(asyncFunc, asyncTimeout, asyncBufferCapacity, AsyncDataStream.OutputMode.ORDERED);
}