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[FLINK-16200][table-planner] Refactor CustomizedConvertRule
This closes apache#16691.
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442 changes: 7 additions & 435 deletions
442
...main/java/org/apache/flink/table/planner/expressions/converter/CustomizedConvertRule.java
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48 changes: 48 additions & 0 deletions
48
.../java/org/apache/flink/table/planner/expressions/converter/converters/ArrayConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| /* | ||
| * 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.expressions.converter.converters; | ||
|
|
||
| import org.apache.flink.table.expressions.CallExpression; | ||
| import org.apache.flink.table.functions.BuiltInFunctionDefinitions; | ||
| import org.apache.flink.table.planner.expressions.converter.CallExpressionConvertRule; | ||
| import org.apache.flink.table.planner.functions.sql.FlinkSqlOperatorTable; | ||
|
|
||
| import org.apache.calcite.rel.type.RelDataType; | ||
| import org.apache.calcite.rex.RexNode; | ||
|
|
||
| import java.util.List; | ||
|
|
||
| import static org.apache.flink.table.planner.expressions.converter.ExpressionConverter.toRexNodes; | ||
|
|
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| /** Conversion for {@link BuiltInFunctionDefinitions#ARRAY}. */ | ||
| class ArrayConverter extends CustomizedConverter { | ||
| @Override | ||
| public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) { | ||
| List<RexNode> childrenRexNode = toRexNodes(context, call.getChildren()); | ||
| RelDataType relDataType = | ||
| context.getTypeFactory() | ||
| .createFieldTypeFromLogicalType(call.getOutputDataType().getLogicalType()); | ||
| return context.getRelBuilder() | ||
| .getRexBuilder() | ||
| .makeCall( | ||
| relDataType, | ||
| FlinkSqlOperatorTable.ARRAY_VALUE_CONSTRUCTOR, | ||
| childrenRexNode); | ||
| } | ||
| } |
40 changes: 40 additions & 0 deletions
40
...ain/java/org/apache/flink/table/planner/expressions/converter/converters/AsConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.flink.table.planner.expressions.converter.converters; | ||
|
|
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| import org.apache.flink.table.expressions.CallExpression; | ||
| import org.apache.flink.table.expressions.ValueLiteralExpression; | ||
| import org.apache.flink.table.functions.BuiltInFunctionDefinitions; | ||
| import org.apache.flink.table.planner.expressions.converter.CallExpressionConvertRule; | ||
|
|
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| import org.apache.calcite.rex.RexNode; | ||
|
|
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| import static org.apache.flink.table.planner.expressions.converter.ExpressionConverter.extractValue; | ||
|
|
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| /** Conversion for {@link BuiltInFunctionDefinitions#AS}. */ | ||
| class AsConverter extends CustomizedConverter { | ||
| @Override | ||
| public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) { | ||
| checkArgumentNumber(call, 2); | ||
| String name = | ||
| extractValue((ValueLiteralExpression) call.getChildren().get(1), String.class); | ||
| RexNode child = context.toRexNode(call.getChildren().get(0)); | ||
| return context.getRelBuilder().alias(child, name); | ||
| } | ||
| } |
51 changes: 51 additions & 0 deletions
51
...ava/org/apache/flink/table/planner/expressions/converter/converters/BetweenConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| /* | ||
| * 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.expressions.converter.converters; | ||
|
|
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| import org.apache.flink.table.expressions.CallExpression; | ||
| import org.apache.flink.table.functions.BuiltInFunctionDefinitions; | ||
| import org.apache.flink.table.planner.expressions.converter.CallExpressionConvertRule; | ||
| import org.apache.flink.table.planner.functions.sql.FlinkSqlOperatorTable; | ||
|
|
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| import org.apache.calcite.rex.RexNode; | ||
|
|
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| import java.util.List; | ||
|
|
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| import static org.apache.flink.table.planner.expressions.converter.ExpressionConverter.toRexNodes; | ||
|
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| /** Conversion for {@link BuiltInFunctionDefinitions#BETWEEN}. */ | ||
| class BetweenConverter extends CustomizedConverter { | ||
| @Override | ||
| public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) { | ||
| checkArgumentNumber(call, 3); | ||
| List<RexNode> childrenRexNode = toRexNodes(context, call.getChildren()); | ||
| RexNode expr = childrenRexNode.get(0); | ||
| RexNode lowerBound = childrenRexNode.get(1); | ||
| RexNode upperBound = childrenRexNode.get(2); | ||
| return context.getRelBuilder() | ||
| .and( | ||
| context.getRelBuilder() | ||
| .call( | ||
| FlinkSqlOperatorTable.GREATER_THAN_OR_EQUAL, | ||
| expr, | ||
| lowerBound), | ||
| context.getRelBuilder() | ||
| .call(FlinkSqlOperatorTable.LESS_THAN_OR_EQUAL, expr, upperBound)); | ||
| } | ||
| } |
44 changes: 44 additions & 0 deletions
44
...n/java/org/apache/flink/table/planner/expressions/converter/converters/CastConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.flink.table.planner.expressions.converter.converters; | ||
|
|
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| import org.apache.flink.table.expressions.CallExpression; | ||
| import org.apache.flink.table.expressions.TypeLiteralExpression; | ||
| import org.apache.flink.table.functions.BuiltInFunctionDefinitions; | ||
| import org.apache.flink.table.planner.expressions.converter.CallExpressionConvertRule; | ||
|
|
||
| import org.apache.calcite.rel.type.RelDataType; | ||
| import org.apache.calcite.rex.RexNode; | ||
|
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| /** Conversion for {@link BuiltInFunctionDefinitions#CAST}. */ | ||
| class CastConverter extends CustomizedConverter { | ||
| @Override | ||
| public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) { | ||
| checkArgumentNumber(call, 2); | ||
|
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| final RexNode child = context.toRexNode(call.getChildren().get(0)); | ||
| final TypeLiteralExpression targetType = (TypeLiteralExpression) call.getChildren().get(1); | ||
| final RelDataType targetRelDataType = | ||
| context.getTypeFactory() | ||
| .createFieldTypeFromLogicalType( | ||
| targetType.getOutputDataType().getLogicalType()); | ||
|
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| return context.getRelBuilder().getRexBuilder().makeAbstractCast(targetRelDataType, child); | ||
| } | ||
| } |
55 changes: 55 additions & 0 deletions
55
.../org/apache/flink/table/planner/expressions/converter/converters/CustomizedConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /* | ||
| * 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.expressions.converter.converters; | ||
|
|
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| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.table.api.TableException; | ||
| import org.apache.flink.table.expressions.CallExpression; | ||
| import org.apache.flink.table.planner.expressions.converter.CallExpressionConvertRule; | ||
| import org.apache.flink.table.planner.expressions.converter.CustomizedConvertRule; | ||
|
|
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| import org.apache.calcite.rex.RexNode; | ||
|
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| /** Customized converter used by {@link CustomizedConvertRule}. */ | ||
| @Internal | ||
| public abstract class CustomizedConverter { | ||
|
|
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| public abstract RexNode convert( | ||
| CallExpression call, CallExpressionConvertRule.ConvertContext context); | ||
|
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| // --------------------------------------------------------------------------------------------- | ||
|
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| protected static void checkArgumentNumber(CallExpression call, int... validArgumentCounts) { | ||
| boolean hasValidArgumentCount = false; | ||
| for (int argumentCount : validArgumentCounts) { | ||
| if (call.getChildren().size() == argumentCount) { | ||
| hasValidArgumentCount = true; | ||
| break; | ||
| } | ||
| } | ||
|
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| checkArgument(call, hasValidArgumentCount); | ||
| } | ||
|
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| protected static void checkArgument(CallExpression call, boolean check) { | ||
| if (!check) { | ||
| throw new TableException("Invalid arguments for call: " + call); | ||
| } | ||
| } | ||
| } |
62 changes: 62 additions & 0 deletions
62
...org/apache/flink/table/planner/expressions/converter/converters/CustomizedConverters.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| /* | ||
| * 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.expressions.converter.converters; | ||
|
|
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| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.table.functions.BuiltInFunctionDefinitions; | ||
| import org.apache.flink.table.functions.FunctionDefinition; | ||
| import org.apache.flink.table.planner.expressions.converter.CustomizedConvertRule; | ||
| import org.apache.flink.table.planner.functions.InternalFunctionDefinitions; | ||
|
|
||
| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.Optional; | ||
|
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| /** Registry of customized converters used by {@link CustomizedConvertRule}. */ | ||
| @Internal | ||
| public class CustomizedConverters { | ||
| private static final Map<FunctionDefinition, CustomizedConverter> CONVERTERS = new HashMap<>(); | ||
|
|
||
| static { | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.CAST, new CastConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.REINTERPRET_CAST, new ReinterpretCastConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.IN, new InConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.GET, new GetConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.TRIM, new TrimConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.AS, new AsConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.BETWEEN, new BetweenConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.NOT_BETWEEN, new NotBetweenConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.REPLACE, new ReplaceConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.PLUS, new PlusConverter()); | ||
| CONVERTERS.put( | ||
| BuiltInFunctionDefinitions.TEMPORAL_OVERLAPS, new TemporalOverlapsConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.TIMESTAMP_DIFF, new TimestampDiffConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.ARRAY, new ArrayConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.MAP, new MapConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.ROW, new RowConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.ORDER_ASC, new OrderAscConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.SQRT, new SqrtConverter()); | ||
| CONVERTERS.put(BuiltInFunctionDefinitions.JSON_EXISTS, new JsonExistsConverter()); | ||
| CONVERTERS.put(InternalFunctionDefinitions.THROW_EXCEPTION, new ThrowExceptionConverter()); | ||
| } | ||
|
|
||
| public Optional<CustomizedConverter> getConverter(FunctionDefinition functionDefinition) { | ||
| return Optional.ofNullable(CONVERTERS.get(functionDefinition)); | ||
| } | ||
| } |
46 changes: 46 additions & 0 deletions
46
...in/java/org/apache/flink/table/planner/expressions/converter/converters/GetConverter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| /* | ||
| * 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.expressions.converter.converters; | ||
|
|
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| import org.apache.flink.table.expressions.CallExpression; | ||
| import org.apache.flink.table.expressions.ExpressionUtils; | ||
| import org.apache.flink.table.expressions.ValueLiteralExpression; | ||
| import org.apache.flink.table.functions.BuiltInFunctionDefinitions; | ||
| import org.apache.flink.table.planner.expressions.converter.CallExpressionConvertRule; | ||
|
|
||
| import org.apache.calcite.rex.RexNode; | ||
|
|
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| import java.util.Optional; | ||
|
|
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| import static org.apache.flink.table.planner.expressions.converter.ExpressionConverter.extractValue; | ||
|
|
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| /** Conversion for {@link BuiltInFunctionDefinitions#GET}. */ | ||
| class GetConverter extends CustomizedConverter { | ||
| @Override | ||
| public RexNode convert(CallExpression call, CallExpressionConvertRule.ConvertContext context) { | ||
| checkArgumentNumber(call, 2); | ||
| RexNode child = context.toRexNode(call.getChildren().get(0)); | ||
| ValueLiteralExpression keyLiteral = (ValueLiteralExpression) call.getChildren().get(1); | ||
| Optional<Integer> indexOptional = | ||
| ExpressionUtils.extractValue(keyLiteral, String.class) | ||
| .map(child.getType().getFieldNames()::indexOf); | ||
| int index = indexOptional.orElseGet(() -> extractValue(keyLiteral, Integer.class)); | ||
| return context.getRelBuilder().getRexBuilder().makeFieldAccess(child, index); | ||
| } | ||
| } |
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