| /* |
| * 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.plan.nodes.calcite |
| |
| import org.apache.calcite.plan.{RelOptCluster, RelTraitSet} |
| import org.apache.calcite.rel.`type`.{RelDataType, RelDataTypeField, RelDataTypeFieldImpl, RelRecordType} |
| import org.apache.calcite.rel.{RelNode, RelWriter, SingleRel} |
| import org.apache.flink.table.calcite.FlinkTypeFactory |
| |
| import scala.collection.JavaConversions._ |
| |
| abstract class WatermarkAssigner( |
| cluster: RelOptCluster, |
| traits: RelTraitSet, |
| inputNode: RelNode, |
| val rowtimeField: String, |
| val watermarkOffset: Long) |
| extends SingleRel(cluster, traits, inputNode) { |
| |
| override def deriveRowType(): RelDataType = { |
| val inputRowType = inputNode.getRowType.asInstanceOf[RelRecordType] |
| val fieldList = inputRowType.getFieldList.map { |
| case f: RelDataTypeField if f.getName.equals(rowtimeField) => |
| new RelDataTypeFieldImpl( |
| rowtimeField, |
| f.getIndex, |
| cluster.getTypeFactory.asInstanceOf[FlinkTypeFactory].createRowtimeIndicatorType()) |
| case f: RelDataTypeField => f |
| } |
| val typeFactory = getCluster.getTypeFactory.asInstanceOf[FlinkTypeFactory] |
| val builder = typeFactory.builder |
| builder.addAll(fieldList) |
| builder.build() |
| } |
| |
| override def explainTerms(pw: RelWriter): RelWriter = { |
| super.explainTerms(pw) |
| .item("fields", getRowType.getFieldNames) |
| .item("rowtimeField", rowtimeField) |
| .item("watermarkOffset", watermarkOffset) |
| } |
| } |