| /* |
| * 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.beam.sdk.extensions.sql.impl; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import org.apache.beam.sdk.extensions.sql.BeamSqlTable; |
| import org.apache.beam.sdk.extensions.sql.impl.rel.BeamIOSinkRel; |
| import org.apache.beam.sdk.extensions.sql.impl.rel.BeamIOSourceRel; |
| import org.apache.beam.sdk.extensions.sql.impl.utils.CalciteUtils; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.ImmutableMap; |
| import org.apache.calcite.adapter.java.AbstractQueryableTable; |
| import org.apache.calcite.linq4j.QueryProvider; |
| import org.apache.calcite.linq4j.Queryable; |
| import org.apache.calcite.plan.RelOptCluster; |
| import org.apache.calcite.plan.RelOptTable; |
| import org.apache.calcite.prepare.Prepare; |
| import org.apache.calcite.rel.RelNode; |
| import org.apache.calcite.rel.core.TableModify; |
| import org.apache.calcite.rel.type.RelDataType; |
| import org.apache.calcite.rel.type.RelDataTypeFactory; |
| import org.apache.calcite.rex.RexNode; |
| import org.apache.calcite.schema.ModifiableTable; |
| import org.apache.calcite.schema.SchemaPlus; |
| import org.apache.calcite.schema.TranslatableTable; |
| |
| /** Adapter from {@link BeamSqlTable} to a calcite Table. */ |
| public class BeamCalciteTable extends AbstractQueryableTable |
| implements ModifiableTable, TranslatableTable { |
| private final BeamSqlTable beamTable; |
| private final Map<String, String> pipelineOptions; |
| |
| BeamCalciteTable(BeamSqlTable beamTable, Map<String, String> pipelineOptions) { |
| super(Object[].class); |
| this.beamTable = beamTable; |
| this.pipelineOptions = pipelineOptions; |
| } |
| |
| public static BeamCalciteTable of(BeamSqlTable table) { |
| return new BeamCalciteTable(table, ImmutableMap.of()); |
| } |
| |
| @Override |
| public RelDataType getRowType(RelDataTypeFactory typeFactory) { |
| return CalciteUtils.toCalciteRowType(this.beamTable.getSchema(), typeFactory); |
| } |
| |
| @Override |
| public RelNode toRel(RelOptTable.ToRelContext context, RelOptTable relOptTable) { |
| return new BeamIOSourceRel(context.getCluster(), relOptTable, beamTable, pipelineOptions); |
| } |
| |
| @Override |
| public <T> Queryable<T> asQueryable( |
| QueryProvider queryProvider, SchemaPlus schema, String tableName) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public Collection getModifiableCollection() { |
| return null; |
| } |
| |
| @Override |
| public TableModify toModificationRel( |
| RelOptCluster cluster, |
| RelOptTable table, |
| Prepare.CatalogReader catalogReader, |
| RelNode child, |
| TableModify.Operation operation, |
| List<String> updateColumnList, |
| List<RexNode> sourceExpressionList, |
| boolean flattened) { |
| return new BeamIOSinkRel( |
| cluster, |
| table, |
| catalogReader, |
| child, |
| operation, |
| updateColumnList, |
| sourceExpressionList, |
| flattened, |
| beamTable, |
| pipelineOptions); |
| } |
| } |