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Persistence Component: Improve UDF-Based Digest Generation (#2700)
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33 changes: 33 additions & 0 deletions
33
...n/java/org/finos/legend/engine/persistence/components/logicalplan/values/UdfAbstract.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| // Copyright 2024 Goldman Sachs | ||
| // | ||
| // Licensed 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.finos.legend.engine.persistence.components.logicalplan.values; | ||
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| import java.util.List; | ||
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| @org.immutables.value.Value.Immutable | ||
| @org.immutables.value.Value.Style( | ||
| typeAbstract = "*Abstract", | ||
| typeImmutable = "*", | ||
| jdkOnly = true, | ||
| optionalAcceptNullable = true, | ||
| strictBuilder = true | ||
| ) | ||
| public interface UdfAbstract extends Value | ||
| { | ||
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| String udfName(); | ||
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| List<Value> parameters(); | ||
| } |
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58 changes: 58 additions & 0 deletions
58
...s/legend/engine/persistence/components/relational/ansi/sql/visitors/DigestUdfVisitor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| // Copyright 2024 Goldman Sachs | ||
| // | ||
| // Licensed 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.finos.legend.engine.persistence.components.relational.ansi.sql.visitors; | ||
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| import org.finos.legend.engine.persistence.components.logicalplan.datasets.DataType; | ||
| import org.finos.legend.engine.persistence.components.logicalplan.values.DigestUdf; | ||
| import org.finos.legend.engine.persistence.components.logicalplan.values.StringValue; | ||
| import org.finos.legend.engine.persistence.components.logicalplan.values.ToArrayFunction; | ||
| import org.finos.legend.engine.persistence.components.logicalplan.values.Value; | ||
| import org.finos.legend.engine.persistence.components.physicalplan.PhysicalPlanNode; | ||
| import org.finos.legend.engine.persistence.components.relational.sqldom.schemaops.values.Udf; | ||
| import org.finos.legend.engine.persistence.components.transformer.LogicalPlanVisitor; | ||
| import org.finos.legend.engine.persistence.components.transformer.VisitorContext; | ||
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| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
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| public class DigestUdfVisitor implements LogicalPlanVisitor<DigestUdf> | ||
| { | ||
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| @Override | ||
| public VisitorResult visit(PhysicalPlanNode prev, DigestUdf current, VisitorContext context) | ||
| { | ||
| Udf udf = new Udf(context.quoteIdentifier(), current.udfName()); | ||
| prev.push(udf); | ||
| List<Value> columnNameList = new ArrayList<>(); | ||
| List<Value> columnValueList = new ArrayList<>(); | ||
| for (int i = 0; i < current.values().size(); i++) | ||
| { | ||
| columnNameList.add(StringValue.of(current.fieldNames().get(i))); | ||
| columnValueList.add(getColumnValueAsStringType(current.values().get(i), current.fieldTypes().get(i), current.typeConversionUdfNames())); | ||
| } | ||
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| ToArrayFunction toArrayColumnNames = ToArrayFunction.builder().addAllValues(columnNameList).build(); | ||
| ToArrayFunction toArrayColumnValues = ToArrayFunction.builder().addAllValues(columnValueList).build(); | ||
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| return new VisitorResult(udf, Arrays.asList(toArrayColumnNames, toArrayColumnValues)); | ||
| } | ||
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| protected Value getColumnValueAsStringType(Value value, DataType dataType, Map<DataType, String> typeConversionUdfNames) | ||
| { | ||
| throw new IllegalStateException("UDF is unsupported in ANSI sink"); | ||
| } | ||
| } |
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