luoyuxia commented on code in PR #22994: URL: https://github.com/apache/flink/pull/22994#discussion_r1264997800
########## flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/operations/PlannerCallProcedureOperation.java: ########## @@ -0,0 +1,352 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.table.planner.operations; + +import org.apache.flink.core.execution.JobClient; +import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment; +import org.apache.flink.table.api.DataTypes; +import org.apache.flink.table.api.ResultKind; +import org.apache.flink.table.api.TableConfig; +import org.apache.flink.table.api.TableException; +import org.apache.flink.table.api.ValidationException; +import org.apache.flink.table.api.config.ExecutionConfigOptions; +import org.apache.flink.table.api.internal.ResultProvider; +import org.apache.flink.table.api.internal.TableResultImpl; +import org.apache.flink.table.api.internal.TableResultInternal; +import org.apache.flink.table.catalog.ObjectIdentifier; +import org.apache.flink.table.catalog.ResolvedSchema; +import org.apache.flink.table.data.GenericRowData; +import org.apache.flink.table.data.RowData; +import org.apache.flink.table.data.conversion.DataStructureConverter; +import org.apache.flink.table.data.conversion.DataStructureConverters; +import org.apache.flink.table.operations.CallProcedureOperation; +import org.apache.flink.table.operations.Operation; +import org.apache.flink.table.operations.OperationUtils; +import org.apache.flink.table.planner.functions.casting.RowDataToStringConverterImpl; +import org.apache.flink.table.procedure.DefaultProcedureContext; +import org.apache.flink.table.procedure.ProcedureContext; +import org.apache.flink.table.procedures.Procedure; +import org.apache.flink.table.procedures.ProcedureDefinition; +import org.apache.flink.table.types.DataType; +import org.apache.flink.table.types.extraction.ExtractionUtils; +import org.apache.flink.table.types.logical.utils.LogicalTypeChecks; +import org.apache.flink.table.types.utils.DataTypeUtils; +import org.apache.flink.table.utils.print.RowDataToStringConverter; +import org.apache.flink.types.Row; +import org.apache.flink.util.CloseableIterator; + +import java.lang.reflect.Array; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.time.ZoneId; +import java.util.Arrays; +import java.util.Collections; +import java.util.Iterator; +import java.util.LinkedHashMap; +import java.util.List; +import java.util.Map; +import java.util.Optional; + +import static org.apache.flink.table.types.extraction.ExtractionUtils.isAssignable; + +/** Wrapper for valid call procedure operation generated by Planner. */ +public class PlannerCallProcedureOperation implements CallProcedureOperation { + + private final ObjectIdentifier procedureIdentifier; + private final Procedure procedure; + + /** The internal represent for input arguments. */ + private final Object[] internalInputArguments; + + private final DataType[] inputTypes; + private final DataType outputType; + + public PlannerCallProcedureOperation( + ObjectIdentifier procedureIdentifier, + Procedure procedure, + Object[] internalInputArguments, + DataType[] inputTypes, + DataType outputType) { + this.procedureIdentifier = procedureIdentifier; + this.procedure = procedure; + this.internalInputArguments = internalInputArguments; + this.inputTypes = inputTypes; + this.outputType = outputType; + } + + @Override + public TableResultInternal execute(Context ctx) { + TableConfig tableConfig = ctx.getTableConfig(); + ClassLoader userClassLoader = ctx.getResourceManager().getUserClassLoader(); + + // get the class for the args + Class<?>[] argumentClz = new Class[1 + inputTypes.length]; + argumentClz[0] = ProcedureContext.class; + for (int i = 0; i < inputTypes.length; i++) { + argumentClz[i + 1] = inputTypes[i].getConversionClass(); + } + + // get the value for the args + Object[] argumentVal = new Object[1 + internalInputArguments.length]; + StreamExecutionEnvironment env = + StreamExecutionEnvironment.getExecutionEnvironment(tableConfig.getConfiguration()); + argumentVal[0] = new DefaultProcedureContext(env); + for (int i = 0; i < internalInputArguments.length; i++) { + argumentVal[i + 1] = + toExternal(internalInputArguments[i], inputTypes[i], userClassLoader); + } + + // call the procedure, get result + Object procedureResult = callProcedure(procedure, argumentClz, argumentVal); + + // get result converter + ZoneId zoneId = tableConfig.getLocalTimeZone(); + DataType tableResultType = outputType; + // if is not composite type, wrap it to composited type + if (!LogicalTypeChecks.isCompositeType(outputType.getLogicalType())) { + tableResultType = DataTypes.ROW(DataTypes.FIELD("result", tableResultType)); + } + + ResolvedSchema resultSchema = DataTypeUtils.expandCompositeTypeToSchema(tableResultType); + RowDataToStringConverter rowDataToStringConverter = + new RowDataToStringConverterImpl( + tableResultType, + zoneId, + userClassLoader, + tableConfig + .get(ExecutionConfigOptions.TABLE_EXEC_LEGACY_CAST_BEHAVIOUR) + .isEnabled()); + // create DataStructure converters + DataStructureConverter<Object, Object> converter = + DataStructureConverters.getConverter(outputType); + converter.open(userClassLoader); + + return TableResultImpl.builder() + .resultProvider( + new CallProcedureResultProvider( + converter, rowDataToStringConverter, procedureResult)) + .schema(resultSchema) + .resultKind(ResultKind.SUCCESS_WITH_CONTENT) + .build(); + } + + private Object toExternal(Object internalValue, DataType inputType, ClassLoader classLoader) { + if (!(DataTypeUtils.isInternal(inputType))) { + // if the expected input type of the procedure is not internal type, + // which means the converted Flink internal value doesn't + // match the expected input type, then we need to convert the Flink + // internal value to external value + DataStructureConverter<Object, Object> converter = + DataStructureConverters.getConverter(inputType); + converter.open(classLoader); + return converter.toExternal(internalValue); + } else { + return internalValue; + } + } + + private Object callProcedure(Procedure procedure, Class<?>[] inputClz, Object[] inputArgs) { + String callMethodName = ProcedureDefinition.PROCEDURE_CALL; + + final List<Method> methods = + ExtractionUtils.collectMethods(procedure.getClass(), callMethodName); + Optional<Method> optionalCallMethod = + methods.stream() + .filter( + method -> + ExtractionUtils.isInvokable(method, inputClz) + && method.getReturnType().isArray() + && isAssignable( + outputType.getConversionClass(), + method.getReturnType().getComponentType(), + true)) + .findAny(); Review Comment: I would like to use the first method, but print a warning log to user. -- This is an automated message from the Apache Git Service. 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