/*
* 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.
*/
<@pp.dropOutputFile />
<#list decimalaggrtypes1.aggrtypes as aggrtype>
<@pp.changeOutputFile name="/org/apache/drill/exec/expr/fn/impl/gaggr/Decimal${aggrtype.className}Functions.java" />
<#include "/@includes/license.ftl" />
<#-- A utility class that is used to generate java code for aggr functions for decimal data type that maintain a single -->
<#-- running counter to hold the result. This includes: MIN, MAX, COUNT. -->
/*
* This class is automatically generated from AggrTypeFunctions1.tdd using FreeMarker.
*/
package org.apache.drill.exec.expr.fn.impl.gaggr;
<#include "/@includes/vv_imports.ftl" />
import org.apache.drill.exec.expr.DrillAggFunc;
import org.apache.drill.exec.expr.annotations.FunctionTemplate;
import org.apache.drill.exec.expr.annotations.FunctionTemplate.FunctionScope;
import org.apache.drill.exec.expr.annotations.Output;
import org.apache.drill.exec.expr.annotations.Param;
import org.apache.drill.exec.expr.annotations.Workspace;
import javax.inject.Inject;
import io.netty.buffer.DrillBuf;
import org.apache.drill.exec.expr.holders.*;
import org.apache.drill.exec.record.RecordBatch;
import io.netty.buffer.ByteBuf;
/*
* This class is generated using freemarker and the ${.template_name} template.
*/
@SuppressWarnings("unused")
public class Decimal${aggrtype.className}Functions {
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(${aggrtype.className}Functions.class);
<#list aggrtype.types as type>
@FunctionTemplate(name = "${aggrtype.funcName}",
scope = FunctionTemplate.FunctionScope.POINT_AGGREGATE,
<#if aggrtype.funcName == "sum"> returnType = FunctionTemplate.ReturnType.DECIMAL_SUM_AGGREGATE
<#else>returnType = FunctionTemplate.ReturnType.DECIMAL_AGGREGATE</#if>)
public static class ${type.inputType}${aggrtype.className} implements DrillAggFunc{
@Param ${type.inputType}Holder in;
<#if aggrtype.funcName == "sum">
@Inject DrillBuf buffer;
@Workspace ObjectHolder value;
@Workspace IntHolder outputScale;
<#elseif type.outputType.endsWith("Sparse")>
@Inject DrillBuf buffer;
@Workspace IntHolder scale;
@Workspace IntHolder precision;
@Workspace ObjectHolder value;
<#else>
@Workspace ${type.runningType}Holder value;
</#if>
@Output ${type.outputType}Holder out;
public void setup() {
<#if aggrtype.funcName == "count">
value = new ${type.runningType}Holder();
value.value = 0;
<#elseif aggrtype.funcName == "max" || aggrtype.funcName == "min">
<#if type.outputType.endsWith("Sparse")>
scale.value = 0;
precision.value = 0;
value = new ObjectHolder();
//${type.runningType}Holder tmp = new ${type.runningType}Holder();
byte[] byteArray = new byte[${type.runningType}Holder.WIDTH];
org.apache.drill.exec.util.Text tmp = new org.apache.drill.exec.util.Text(byteArray);
value.obj = tmp;
<#if aggrtype.funcName == "max">
for (int i = 0; i < ${type.runningType}Holder.nDecimalDigits; i++) {
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setInteger(tmp.getBytes(), i, 0xFFFFFFFF);
}
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setSign(tmp.getBytes(), true);
<#elseif aggrtype.funcName == "min">
for (int i = 0; i < ${type.runningType}Holder.nDecimalDigits; i++) {
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setInteger(tmp.getBytes(), i, 0x7FFFFFFF);
}
// Set sign to be positive so initial value is maximum
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setSign(tmp.getBytes(), false);
</#if>
<#elseif type.outputType == "Decimal9" || type.outputType == "Decimal18">
value = new ${type.runningType}Holder();
value.value = ${type.initValue};
</#if>
<#elseif aggrtype.funcName == "sum">
buffer = buffer.reallocIfNeeded(${type.outputType}Holder.WIDTH);
value = new ObjectHolder();
value.obj = java.math.BigDecimal.ZERO;
outputScale = new IntHolder();
outputScale.value = Integer.MIN_VALUE;
</#if>
}
@Override
public void add() {
<#if type.inputType?starts_with("Nullable")>
sout: {
if (in.isSet == 0) {
// processing nullable input and the value is null, so don't do anything...
break sout;
}
</#if>
<#if aggrtype.funcName == "count">
value.value++;
<#elseif aggrtype.funcName == "max">
<#if type.outputType.endsWith("Sparse")>
//${type.runningType}Holder tmp = (${type.runningType}Holder) value.obj;
org.apache.drill.exec.util.Text tmp = (org.apache.drill.exec.util.Text) value.obj;
int cmp = org.apache.drill.exec.util.DecimalUtility.compareSparseSamePrecScale(in.buffer, in.start, tmp.getBytes(), tmp.getLength());
if (cmp == 1) {
//in.buffer.getBytes(in.start, tmp.getBytes(), 0, ${type.runningType}Holder.WIDTH);
for (int i = 0; i < ${type.runningType}Holder.nDecimalDigits; i++) {
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setInteger(tmp.getBytes(), i, ${type.runningType}Holder.getInteger(i, in.start, in.buffer));
}
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setSign(tmp.getBytes(), in.getSign(in.start, in.buffer));
scale.value = in.scale;
precision.value = in.precision;
}
<#elseif type.outputType == "Decimal9" || type.outputType == "Decimal18">
value.value = Math.max(value.value, in.value);
</#if>
<#elseif aggrtype.funcName == "min">
<#if type.outputType.endsWith("Sparse")>
//${type.runningType}Holder tmp = (${type.runningType}Holder) value.obj;
org.apache.drill.exec.util.Text tmp = (org.apache.drill.exec.util.Text) value.obj;
int cmp = org.apache.drill.exec.util.DecimalUtility.compareSparseSamePrecScale(in.buffer, in.start, tmp.getBytes(), tmp.getLength());
if (cmp == -1) {
//in.buffer.getBytes(in.start, tmp.getBytes(), 0, ${type.runningType}Holder.WIDTH);
for (int i = 0; i < ${type.runningType}Holder.nDecimalDigits; i++) {
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setInteger(tmp.getBytes(), i, ${type.runningType}Holder.getInteger(i, in.start, in.buffer));
}
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setSign(tmp.getBytes(), in.getSign(in.start, in.buffer));
scale.value = in.scale;
precision.value = in.precision;
}
<#elseif type.outputType == "Decimal9" || type.outputType == "Decimal18">
value.value = Math.min(value.value, in.value);
</#if>
<#elseif aggrtype.funcName == "sum">
<#if type.inputType.endsWith("Decimal9") || type.inputType.endsWith("Decimal18")>
java.math.BigDecimal currentValue = org.apache.drill.exec.util.DecimalUtility.getBigDecimalFromPrimitiveTypes(in.value, in.scale, in.precision);
<#else>
java.math.BigDecimal currentValue = org.apache.drill.exec.util.DecimalUtility.getBigDecimalFromSparse(in.buffer, in.start, in.nDecimalDigits, in.scale);
</#if>
value.obj = ((java.math.BigDecimal)(value.obj)).add(currentValue);
if (outputScale.value == Integer.MIN_VALUE) {
outputScale.value = in.scale;
}
</#if>
<#if type.inputType?starts_with("Nullable")>
} // end of sout block
</#if>
}
@Override
public void output() {
<#if aggrtype.funcName == "count">
out.value = value.value;
<#elseif aggrtype.funcName == "sum">
out.buffer = buffer;
out.start = 0;
out.scale = outputScale.value;
out.precision = 38;
value.obj = ((java.math.BigDecimal) (value.obj)).setScale(out.scale, java.math.BigDecimal.ROUND_HALF_UP);
org.apache.drill.exec.util.DecimalUtility.getSparseFromBigDecimal((java.math.BigDecimal) value.obj, out.buffer, out.start, out.scale, out.precision, out.nDecimalDigits);
<#else>
<#if type.outputType.endsWith("Sparse")>
org.apache.drill.exec.util.Text tmp = (org.apache.drill.exec.util.Text) value.obj;
buffer = buffer.reallocIfNeeded(tmp.getLength());
//buffer.setBytes(0, tmp.getBytes(), 0, tmp.getLength());
for (int i = 0; i < ${type.runningType}Holder.nDecimalDigits; i++) {
${type.runningType}Holder.setInteger(i, org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.getInteger(tmp.getBytes(), i), 0, buffer);
}
out.buffer = buffer;
out.start = 0;
out.setSign(org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.getSign(tmp.getBytes()), out.start, out.buffer);
out.scale = scale.value;
out.precision = precision.value;
<#elseif type.outputType == "Decimal9" || type.outputType == "Decimal18">
out.value = value.value;
out.scale = value.scale;
out.precision = value.precision;
</#if>
</#if>
}
@Override
public void reset() {
<#if aggrtype.funcName == "count">
value.value = 0;
<#elseif aggrtype.funcName == "max" || aggrtype.funcName == "min">
<#if type.outputType.endsWith("Sparse")>
org.apache.drill.exec.util.Text tmp = (org.apache.drill.exec.util.Text) value.obj;
for (int i = 0; i < ${type.runningType}Holder.nDecimalDigits; i++) {
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setInteger(tmp.getBytes(), i, 0xFFFFFFFF);
}
scale.value = 0;
precision.value = 0;
<#if aggrtype.funcName == "min">
// Set sign to be positive so initial value is maximum
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setSign(tmp.getBytes(), false);
<#elseif aggrtype.funcName == "max">
org.apache.drill.exec.expr.fn.impl.ByteFunctionHelpers.setSign(tmp.getBytes(), true);
</#if>
<#elseif type.outputType == "Decimal9" || type.outputType == "Decimal18">
value = new ${type.runningType}Holder();
value.value = ${type.initValue};
</#if>
<#elseif aggrtype.funcName == "sum">
value = new ObjectHolder();
value.obj = java.math.BigDecimal.ZERO;
outputScale = new IntHolder();
outputScale.value = Integer.MIN_VALUE;
</#if>
}
}
</#list>
}
</#list>