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[FLINK-21531][table][hive] Introduce pluggable Parser
This closes apache#15050
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72 changes: 72 additions & 0 deletions
72
...nnector-hive/src/main/java/org/apache/flink/table/planner/delegation/hive/HiveParser.java
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| /* | ||
| * 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:https://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. | ||
| */ | ||
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|
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| package org.apache.flink.table.planner.delegation.hive; | ||
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| import org.apache.flink.table.api.TableSchema; | ||
| import org.apache.flink.table.catalog.CatalogManager; | ||
| import org.apache.flink.table.operations.Operation; | ||
| import org.apache.flink.table.planner.calcite.CalciteParser; | ||
| import org.apache.flink.table.planner.calcite.FlinkPlannerImpl; | ||
| import org.apache.flink.table.planner.calcite.SqlExprToRexConverter; | ||
| import org.apache.flink.table.planner.delegation.ParserImpl; | ||
| import org.apache.flink.table.planner.delegation.PlannerContext; | ||
| import org.apache.flink.table.planner.plan.FlinkCalciteCatalogReader; | ||
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| import org.apache.calcite.tools.FrameworkConfig; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import java.util.List; | ||
| import java.util.function.Function; | ||
| import java.util.function.Supplier; | ||
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| /** A Parser that uses Hive's planner to parse a statement. */ | ||
| public class HiveParser extends ParserImpl { | ||
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| private static final Logger LOG = LoggerFactory.getLogger(HiveParser.class); | ||
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| private final PlannerContext plannerContext; | ||
| private final FlinkCalciteCatalogReader catalogReader; | ||
| private final FrameworkConfig frameworkConfig; | ||
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| HiveParser( | ||
| CatalogManager catalogManager, | ||
| Supplier<FlinkPlannerImpl> validatorSupplier, | ||
| Supplier<CalciteParser> calciteParserSupplier, | ||
| Function<TableSchema, SqlExprToRexConverter> sqlExprToRexConverterCreator, | ||
| PlannerContext plannerContext) { | ||
| super( | ||
| catalogManager, | ||
| validatorSupplier, | ||
| calciteParserSupplier, | ||
| sqlExprToRexConverterCreator); | ||
| this.plannerContext = plannerContext; | ||
| this.catalogReader = | ||
| plannerContext.createCatalogReader( | ||
| false, | ||
| catalogManager.getCurrentCatalog(), | ||
| catalogManager.getCurrentDatabase()); | ||
| this.frameworkConfig = plannerContext.createFrameworkConfig(); | ||
| } | ||
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| @Override | ||
| public List<Operation> parse(String statement) { | ||
| return super.parse(statement); | ||
| } | ||
| } |
72 changes: 72 additions & 0 deletions
72
...-hive/src/main/java/org/apache/flink/table/planner/delegation/hive/HiveParserFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| /* | ||
| * 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:https://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. | ||
| */ | ||
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| package org.apache.flink.table.planner.delegation.hive; | ||
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| import org.apache.flink.table.api.SqlDialect; | ||
| import org.apache.flink.table.api.config.TableConfigOptions; | ||
| import org.apache.flink.table.catalog.CatalogManager; | ||
| import org.apache.flink.table.delegation.Parser; | ||
| import org.apache.flink.table.descriptors.DescriptorProperties; | ||
| import org.apache.flink.table.planner.calcite.SqlExprToRexConverterFactory; | ||
| import org.apache.flink.table.planner.delegation.ParserFactory; | ||
| import org.apache.flink.table.planner.delegation.PlannerContext; | ||
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| import java.util.Collections; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
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| /** A Parser factory that creates {@link HiveParser}. */ | ||
| public class HiveParserFactory implements ParserFactory { | ||
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| @Override | ||
| public Parser create(CatalogManager catalogManager, PlannerContext plannerContext) { | ||
| SqlExprToRexConverterFactory sqlExprToRexConverterFactory = | ||
| plannerContext::createSqlExprToRexConverter; | ||
| return new HiveParser( | ||
| catalogManager, | ||
| () -> | ||
| plannerContext.createFlinkPlanner( | ||
| catalogManager.getCurrentCatalog(), | ||
| catalogManager.getCurrentDatabase()), | ||
| plannerContext::createCalciteParser, | ||
| tableSchema -> | ||
| sqlExprToRexConverterFactory.create( | ||
| plannerContext.getTypeFactory().buildRelNodeRowType(tableSchema)), | ||
| plannerContext); | ||
| } | ||
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| @Override | ||
| public Map<String, String> optionalContext() { | ||
| DescriptorProperties properties = new DescriptorProperties(); | ||
| return properties.asMap(); | ||
| } | ||
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| @Override | ||
| public Map<String, String> requiredContext() { | ||
| DescriptorProperties properties = new DescriptorProperties(); | ||
| properties.putString( | ||
| TableConfigOptions.TABLE_SQL_DIALECT.key(), SqlDialect.HIVE.name().toLowerCase()); | ||
| return properties.asMap(); | ||
| } | ||
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| @Override | ||
| public List<String> supportedProperties() { | ||
| return Collections.singletonList(TableConfigOptions.TABLE_SQL_DIALECT.key()); | ||
| } | ||
| } |
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