| /* |
| * 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.codegen |
| |
| import org.apache.flink.table.api.TableEnvironment |
| import org.apache.flink.table.api.types.{DataTypes, TypeConverters} |
| import org.apache.flink.table.calcite.FlinkTypeFactory |
| import org.apache.flink.table.dataformat.{BaseRow, GenericRow} |
| import org.apache.flink.table.runtime.io.ValuesInputFormat |
| import org.apache.flink.table.typeutils.{BaseRowTypeInfo, TypeUtils} |
| |
| import com.google.common.collect.ImmutableList |
| import org.apache.calcite.rel.`type`.RelDataType |
| import org.apache.calcite.rex.RexLiteral |
| |
| import scala.collection.JavaConversions._ |
| |
| object ValuesCodeGenerator { |
| |
| def generatorInputFormat( |
| tableEnv: TableEnvironment, |
| rowType: RelDataType, |
| tuples: ImmutableList[ImmutableList[RexLiteral]], |
| description: String): ValuesInputFormat = { |
| val config = tableEnv.getConfig |
| val outputType = FlinkTypeFactory.toInternalRowType(rowType) |
| |
| val ctx = CodeGeneratorContext(config) |
| val exprGenerator = new ExprCodeGenerator(ctx, false, config.getNullCheck) |
| // generate code for every record |
| val generatedRecords = tuples.map { r => |
| exprGenerator.generateResultExpression( |
| r.map(exprGenerator.generateExpression), outputType, classOf[GenericRow]) |
| } |
| |
| // generate input format |
| val generatedFunction = InputFormatCodeGenerator.generateValuesInputFormat( |
| ctx, |
| description, |
| generatedRecords.map(_.code), |
| outputType) |
| |
| new ValuesInputFormat( |
| generatedFunction.name, |
| generatedFunction.code, |
| TypeConverters.toBaseRowTypeInfo(outputType) |
| ) |
| } |
| |
| } |