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Polymorphic binary arithmetic scalar functions (apache#14089)
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66 changes: 66 additions & 0 deletions
66
...src/main/java/org/apache/pinot/common/function/scalar/arithmetic/MinusScalarFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| /** | ||
| * 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.pinot.common.function.scalar.arithmetic; | ||
|
|
||
| import java.util.EnumMap; | ||
| import java.util.Map; | ||
| import org.apache.pinot.common.function.FunctionInfo; | ||
| import org.apache.pinot.common.utils.DataSchema.ColumnDataType; | ||
| import org.apache.pinot.spi.annotations.ScalarFunction; | ||
|
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| @ScalarFunction(names = {"sub", "minus"}) | ||
| public class MinusScalarFunction extends PolymorphicBinaryArithmeticScalarFunction { | ||
|
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| private static final Map<ColumnDataType, FunctionInfo> TYPE_FUNCTION_INFO_MAP = new EnumMap<>(ColumnDataType.class); | ||
|
|
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| static { | ||
| try { | ||
| TYPE_FUNCTION_INFO_MAP.put(ColumnDataType.LONG, | ||
| new FunctionInfo(MinusScalarFunction.class.getMethod("longMinus", long.class, long.class), | ||
| MinusScalarFunction.class, false)); | ||
| TYPE_FUNCTION_INFO_MAP.put(ColumnDataType.DOUBLE, | ||
| new FunctionInfo(MinusScalarFunction.class.getMethod("doubleMinus", double.class, double.class), | ||
| MinusScalarFunction.class, false)); | ||
| } catch (NoSuchMethodException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
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| @Override | ||
| protected FunctionInfo functionInfoForType(ColumnDataType argumentType) { | ||
| FunctionInfo functionInfo = TYPE_FUNCTION_INFO_MAP.get(argumentType); | ||
|
|
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| // Fall back to double based comparison by default | ||
| return functionInfo != null ? functionInfo : TYPE_FUNCTION_INFO_MAP.get(ColumnDataType.DOUBLE); | ||
| } | ||
|
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| @Override | ||
| public String getName() { | ||
| return "minus"; | ||
| } | ||
|
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| public static long longMinus(long a, long b) { | ||
| return a - b; | ||
| } | ||
|
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| public static double doubleMinus(double a, double b) { | ||
| return a - b; | ||
| } | ||
| } |
66 changes: 66 additions & 0 deletions
66
.../src/main/java/org/apache/pinot/common/function/scalar/arithmetic/MultScalarFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| /** | ||
| * 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.pinot.common.function.scalar.arithmetic; | ||
|
|
||
| import java.util.EnumMap; | ||
| import java.util.Map; | ||
| import org.apache.pinot.common.function.FunctionInfo; | ||
| import org.apache.pinot.common.utils.DataSchema.ColumnDataType; | ||
| import org.apache.pinot.spi.annotations.ScalarFunction; | ||
|
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|
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| @ScalarFunction(names = {"mult", "times"}) | ||
| public class MultScalarFunction extends PolymorphicBinaryArithmeticScalarFunction { | ||
|
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| private static final Map<ColumnDataType, FunctionInfo> TYPE_FUNCTION_INFO_MAP = new EnumMap<>(ColumnDataType.class); | ||
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| static { | ||
| try { | ||
| TYPE_FUNCTION_INFO_MAP.put(ColumnDataType.LONG, | ||
| new FunctionInfo(MultScalarFunction.class.getMethod("longMult", long.class, long.class), | ||
| MultScalarFunction.class, false)); | ||
| TYPE_FUNCTION_INFO_MAP.put(ColumnDataType.DOUBLE, | ||
| new FunctionInfo(MultScalarFunction.class.getMethod("doubleMult", double.class, double.class), | ||
| MultScalarFunction.class, false)); | ||
| } catch (NoSuchMethodException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
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| @Override | ||
| protected FunctionInfo functionInfoForType(ColumnDataType argumentType) { | ||
| FunctionInfo functionInfo = TYPE_FUNCTION_INFO_MAP.get(argumentType); | ||
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| // Fall back to double based comparison by default | ||
| return functionInfo != null ? functionInfo : TYPE_FUNCTION_INFO_MAP.get(ColumnDataType.DOUBLE); | ||
| } | ||
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| @Override | ||
| public String getName() { | ||
| return "mult"; | ||
| } | ||
|
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| public static long longMult(long a, long b) { | ||
| return a * b; | ||
| } | ||
|
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| public static double doubleMult(double a, double b) { | ||
| return a * b; | ||
| } | ||
| } |
66 changes: 66 additions & 0 deletions
66
.../src/main/java/org/apache/pinot/common/function/scalar/arithmetic/PlusScalarFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| /** | ||
| * 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.pinot.common.function.scalar.arithmetic; | ||
|
|
||
| import java.util.EnumMap; | ||
| import java.util.Map; | ||
| import org.apache.pinot.common.function.FunctionInfo; | ||
| import org.apache.pinot.common.utils.DataSchema.ColumnDataType; | ||
| import org.apache.pinot.spi.annotations.ScalarFunction; | ||
|
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| @ScalarFunction(names = {"add", "plus"}) | ||
| public class PlusScalarFunction extends PolymorphicBinaryArithmeticScalarFunction { | ||
|
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| private static final Map<ColumnDataType, FunctionInfo> TYPE_FUNCTION_INFO_MAP = new EnumMap<>(ColumnDataType.class); | ||
|
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| static { | ||
| try { | ||
| TYPE_FUNCTION_INFO_MAP.put(ColumnDataType.LONG, | ||
| new FunctionInfo(PlusScalarFunction.class.getMethod("longPlus", long.class, long.class), | ||
| PlusScalarFunction.class, false)); | ||
| TYPE_FUNCTION_INFO_MAP.put(ColumnDataType.DOUBLE, | ||
| new FunctionInfo(PlusScalarFunction.class.getMethod("doublePlus", double.class, double.class), | ||
| PlusScalarFunction.class, false)); | ||
| } catch (NoSuchMethodException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
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| @Override | ||
| protected FunctionInfo functionInfoForType(ColumnDataType argumentType) { | ||
| FunctionInfo functionInfo = TYPE_FUNCTION_INFO_MAP.get(argumentType); | ||
|
|
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| // Fall back to double based comparison by default | ||
| return functionInfo != null ? functionInfo : TYPE_FUNCTION_INFO_MAP.get(ColumnDataType.DOUBLE); | ||
| } | ||
|
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| @Override | ||
| public String getName() { | ||
| return "plus"; | ||
| } | ||
|
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| public static long longPlus(long a, long b) { | ||
| return a + b; | ||
| } | ||
|
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| public static double doublePlus(double a, double b) { | ||
| return a + b; | ||
| } | ||
| } |
67 changes: 67 additions & 0 deletions
67
...he/pinot/common/function/scalar/arithmetic/PolymorphicBinaryArithmeticScalarFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| /** | ||
| * 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.pinot.common.function.scalar.arithmetic; | ||
|
|
||
| import javax.annotation.Nullable; | ||
| import org.apache.pinot.common.function.FunctionInfo; | ||
| import org.apache.pinot.common.function.PinotScalarFunction; | ||
| import org.apache.pinot.common.utils.DataSchema.ColumnDataType; | ||
|
|
||
|
|
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| /** | ||
| * Base class for polymorphic binary arithmetic scalar functions | ||
| */ | ||
| public abstract class PolymorphicBinaryArithmeticScalarFunction implements PinotScalarFunction { | ||
|
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| @Nullable | ||
| @Override | ||
| public FunctionInfo getFunctionInfo(ColumnDataType[] argumentTypes) { | ||
| if (argumentTypes.length != 2) { | ||
| return null; | ||
| } | ||
|
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| return functionInfoForTypes(argumentTypes[0].getStoredType(), argumentTypes[1].getStoredType()); | ||
| } | ||
|
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| @Nullable | ||
| @Override | ||
| public FunctionInfo getFunctionInfo(int numArguments) { | ||
| if (numArguments != 2) { | ||
| return null; | ||
| } | ||
|
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| // For backward compatibility | ||
| return functionInfoForType(ColumnDataType.DOUBLE); | ||
| } | ||
|
|
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| private FunctionInfo functionInfoForTypes(ColumnDataType argumentType1, ColumnDataType argumentType2) { | ||
| if ((argumentType1 == ColumnDataType.LONG || argumentType1 == ColumnDataType.INT) && ( | ||
| argumentType2 == ColumnDataType.LONG || argumentType2 == ColumnDataType.INT)) { | ||
| return functionInfoForType(ColumnDataType.LONG); | ||
| } | ||
|
|
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| // Fall back to double based comparison by default | ||
| return functionInfoForType(ColumnDataType.DOUBLE); | ||
| } | ||
|
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| /** | ||
| * Get the binary arithmetic scalar function's {@link FunctionInfo} for the given argument type. | ||
| */ | ||
| protected abstract FunctionInfo functionInfoForType(ColumnDataType argumentType); | ||
| } |
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