codegen.templates.NullableValueVectors Maven / Gradle / Ivy
/**
* 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.
*/
import org.apache.drill.exec.vector.BaseDataValueVector;
import org.apache.drill.exec.vector.NullableVectorDefinitionSetter;
import java.lang.Override;
import java.lang.UnsupportedOperationException;
<@pp.dropOutputFile />
<#list vv.types as type>
<#list type.minor as minor>
<#assign className = "Nullable${minor.class}Vector" />
<#assign valuesName = "${minor.class}Vector" />
<#assign friendlyType = (minor.friendlyType!minor.boxedType!type.boxedType) />
<@pp.changeOutputFile name="/org/apache/drill/exec/vector/${className}.java" />
<#include "/@includes/license.ftl" />
package org.apache.drill.exec.vector;
<#include "/@includes/vv_imports.ftl" />
/**
* Nullable${minor.class} implements a vector of values which could be null. Elements in the vector
* are first checked against a fixed length vector of boolean values. Then the element is retrieved
* from the base class (if not null).
*
* NB: this class is automatically generated from ${.template_name} and ValueVectorTypes.tdd using FreeMarker.
*/
@SuppressWarnings("unused")
public final class ${className} extends BaseDataValueVector implements <#if type.major == "VarLen">VariableWidth<#else>FixedWidthVector, NullableVector{
private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(${className}.class);
private final FieldReader reader = new Nullable${minor.class}ReaderImpl(Nullable${minor.class}Vector.this);
private final MaterializedField bitsField = MaterializedField.create("$bits$", Types.required(MinorType.UINT1));
private final UInt1Vector bits = new UInt1Vector(bitsField, allocator);
private final ${valuesName} values = new ${minor.class}Vector(field, allocator);
private final Mutator mutator = new Mutator();
private final Accessor accessor = new Accessor();
public ${className}(MaterializedField field, BufferAllocator allocator) {
super(field, allocator);
}
@Override
public FieldReader getReader(){
return reader;
}
@Override
public int getValueCapacity(){
return Math.min(bits.getValueCapacity(), values.getValueCapacity());
}
@Override
public DrillBuf[] getBuffers(boolean clear) {
final DrillBuf[] buffers = ObjectArrays.concat(bits.getBuffers(false), values.getBuffers(false), DrillBuf.class);
if (clear) {
for (final DrillBuf buffer:buffers) {
buffer.retain(1);
}
clear();
}
return buffers;
}
@Override
public void close() {
bits.close();
values.close();
super.close();
}
@Override
public void clear() {
bits.clear();
values.clear();
super.clear();
}
@Override
public int getBufferSize(){
return values.getBufferSize() + bits.getBufferSize();
}
@Override
public int getBufferSizeFor(final int valueCount) {
if (valueCount == 0) {
return 0;
}
return values.getBufferSizeFor(valueCount)
+ bits.getBufferSizeFor(valueCount);
}
@Override
public DrillBuf getBuffer() {
return values.getBuffer();
}
@Override
public ${valuesName} getValuesVector() {
return values;
}
@Override
public void setInitialCapacity(int numRecords) {
bits.setInitialCapacity(numRecords);
values.setInitialCapacity(numRecords);
}
@Override
public SerializedField.Builder getMetadataBuilder() {
return super.getMetadataBuilder()
.addChild(bits.getMetadata())
.addChild(values.getMetadata());
}
@Override
public void allocateNew() {
if(!allocateNewSafe()){
throw new OutOfMemoryException("Failure while allocating buffer.");
}
}
@Override
public boolean allocateNewSafe() {
/* Boolean to keep track if all the memory allocations were successful
* Used in the case of composite vectors when we need to allocate multiple
* buffers for multiple vectors. If one of the allocations failed we need to
* clear all the memory that we allocated
*/
boolean success = false;
try {
success = values.allocateNewSafe() && bits.allocateNewSafe();
} finally {
if (!success) {
clear();
}
}
bits.zeroVector();
mutator.reset();
accessor.reset();
return success;
}
<#if type.major == "VarLen">
@Override
public void allocateNew(int totalBytes, int valueCount) {
try {
values.allocateNew(totalBytes, valueCount);
bits.allocateNew(valueCount);
} catch(DrillRuntimeException e) {
clear();
throw e;
}
bits.zeroVector();
mutator.reset();
accessor.reset();
}
public void reset() {
bits.zeroVector();
mutator.reset();
accessor.reset();
super.reset();
}
@Override
public int getByteCapacity(){
return values.getByteCapacity();
}
@Override
public int getCurrentSizeInBytes(){
return values.getCurrentSizeInBytes();
}
<#else>
@Override
public void allocateNew(int valueCount) {
try {
values.allocateNew(valueCount);
bits.allocateNew(valueCount+1);
} catch(OutOfMemoryException e) {
clear();
throw e;
}
bits.zeroVector();
mutator.reset();
accessor.reset();
}
@Override
public void reset() {
bits.zeroVector();
mutator.reset();
accessor.reset();
super.reset();
}
/**
* {@inheritDoc}
*/
@Override
public void zeroVector() {
bits.zeroVector();
values.zeroVector();
}
@Override
public void load(SerializedField metadata, DrillBuf buffer) {
clear();
// the bits vector is the first child (the order in which the children are added in getMetadataBuilder is significant)
final SerializedField bitsField = metadata.getChild(0);
bits.load(bitsField, buffer);
final int capacity = buffer.capacity();
final int bitsLength = bitsField.getBufferLength();
final SerializedField valuesField = metadata.getChild(1);
values.load(valuesField, buffer.slice(bitsLength, capacity - bitsLength));
}
@Override
public TransferPair getTransferPair(BufferAllocator allocator){
return new TransferImpl(getField(), allocator);
}
@Override
public TransferPair getTransferPair(String ref, BufferAllocator allocator){
return new TransferImpl(getField().withPath(ref), allocator);
}
@Override
public TransferPair makeTransferPair(ValueVector to) {
return new TransferImpl((Nullable${minor.class}Vector) to);
}
public void transferTo(Nullable${minor.class}Vector target){
bits.transferTo(target.bits);
values.transferTo(target.values);
<#if type.major == "VarLen">
target.mutator.lastSet = mutator.lastSet;
clear();
}
public void splitAndTransferTo(int startIndex, int length, Nullable${minor.class}Vector target) {
bits.splitAndTransferTo(startIndex, length, target.bits);
values.splitAndTransferTo(startIndex, length, target.values);
<#if type.major == "VarLen">
target.mutator.lastSet = length - 1;
}
private class TransferImpl implements TransferPair {
Nullable${minor.class}Vector to;
public TransferImpl(MaterializedField field, BufferAllocator allocator){
to = new Nullable${minor.class}Vector(field, allocator);
}
public TransferImpl(Nullable${minor.class}Vector to){
this.to = to;
}
@Override
public Nullable${minor.class}Vector getTo(){
return to;
}
@Override
public void transfer(){
transferTo(to);
}
@Override
public void splitAndTransfer(int startIndex, int length) {
splitAndTransferTo(startIndex, length, to);
}
@Override
public void copyValueSafe(int fromIndex, int toIndex) {
to.copyFromSafe(fromIndex, toIndex, Nullable${minor.class}Vector.this);
}
}
@Override
public Accessor getAccessor(){
return accessor;
}
@Override
public Mutator getMutator(){
return mutator;
}
public ${minor.class}Vector convertToRequiredVector(){
${minor.class}Vector v = new ${minor.class}Vector(getField().getOtherNullableVersion(), allocator);
if (v.data != null) {
v.data.release(1);
}
v.data = values.data;
v.data.retain(1);
clear();
return v;
}
public void copyFrom(int fromIndex, int thisIndex, Nullable${minor.class}Vector from){
final Accessor fromAccessor = from.getAccessor();
if (!fromAccessor.isNull(fromIndex)) {
mutator.set(thisIndex, fromAccessor.get(fromIndex));
}
}
public void copyFromSafe(int fromIndex, int thisIndex, ${minor.class}Vector from){
<#if type.major == "VarLen">
mutator.fillEmpties(thisIndex);
values.copyFromSafe(fromIndex, thisIndex, from);
bits.getMutator().setSafe(thisIndex, 1);
}
public void copyFromSafe(int fromIndex, int thisIndex, Nullable${minor.class}Vector from){
<#if type.major == "VarLen">
mutator.fillEmpties(thisIndex);
bits.copyFromSafe(fromIndex, thisIndex, from.bits);
values.copyFromSafe(fromIndex, thisIndex, from.values);
}
public final class Accessor extends BaseDataValueVector.BaseAccessor <#if type.major = "VarLen">implements VariableWidthVector.VariableWidthAccessor {
final UInt1Vector.Accessor bAccessor = bits.getAccessor();
final ${valuesName}.Accessor vAccessor = values.getAccessor();
/**
* Get the element at the specified position.
*
* @param index position of the value
* @return value of the element, if not null
* @throws NullValueException if the value is null
*/
public <#if type.major == "VarLen">byte[]<#else>${minor.javaType!type.javaType} get(int index) {
if (isNull(index)) {
throw new IllegalStateException("Can't get a null value");
}
return vAccessor.get(index);
}
@Override
public boolean isNull(int index) {
return isSet(index) == 0;
}
public int isSet(int index){
return bAccessor.get(index);
}
<#if type.major == "VarLen">
public long getStartEnd(int index){
return vAccessor.getStartEnd(index);
}
@Override
public int getValueLength(int index) {
return values.getAccessor().getValueLength(index);
}
public void get(int index, Nullable${minor.class}Holder holder){
vAccessor.get(index, holder);
holder.isSet = bAccessor.get(index);
<#if minor.class.startsWith("Decimal")>
holder.scale = getField().getScale();
holder.precision = getField().getPrecision();
}
@Override
public ${friendlyType} getObject(int index) {
if (isNull(index)) {
return null;
}else{
return vAccessor.getObject(index);
}
}
<#if minor.class == "Interval" || minor.class == "IntervalDay" || minor.class == "IntervalYear">
public StringBuilder getAsStringBuilder(int index) {
if (isNull(index)) {
return null;
}else{
return vAccessor.getAsStringBuilder(index);
}
}
@Override
public int getValueCount(){
return bits.getAccessor().getValueCount();
}
public void reset(){}
}
public final class Mutator extends BaseDataValueVector.BaseMutator implements NullableVectorDefinitionSetter<#if type.major = "VarLen">, VariableWidthVector.VariableWidthMutator {
private int setCount;
<#if type.major = "VarLen"> private int lastSet = -1;
private Mutator(){
}
public ${valuesName} getVectorWithValues(){
return values;
}
@Override
public void setIndexDefined(int index){
bits.getMutator().set(index, 1);
}
/**
* Set the variable length element at the specified index to the supplied byte array.
*
* @param index position of the bit to set
* @param bytes array of bytes to write
*/
public void set(int index, <#if type.major == "VarLen">byte[]<#elseif (type.width < 4)>int<#else>${minor.javaType!type.javaType} value) {
setCount++;
final ${valuesName}.Mutator valuesMutator = values.getMutator();
final UInt1Vector.Mutator bitsMutator = bits.getMutator();
<#if type.major == "VarLen">
for (int i = lastSet + 1; i < index; i++) {
valuesMutator.set(i, emptyByteArray);
}
bitsMutator.set(index, 1);
valuesMutator.set(index, value);
<#if type.major == "VarLen">lastSet = index;
}
<#if type.major == "VarLen">
private void fillEmpties(int index){
final ${valuesName}.Mutator valuesMutator = values.getMutator();
for (int i = lastSet; i < index; i++) {
valuesMutator.setSafe(i + 1, emptyByteArray);
}
while(index > bits.getValueCapacity()) {
bits.reAlloc();
}
lastSet = index;
}
@Override
public void setValueLengthSafe(int index, int length) {
values.getMutator().setValueLengthSafe(index, length);
lastSet = index;
}
public void setSafe(int index, byte[] value, int start, int length) {
<#if type.major != "VarLen">
throw new UnsupportedOperationException();
<#else>
fillEmpties(index);
bits.getMutator().setSafe(index, 1);
values.getMutator().setSafe(index, value, start, length);
setCount++;
<#if type.major == "VarLen">lastSet = index;
}
public void setSafe(int index, ByteBuffer value, int start, int length) {
<#if type.major != "VarLen">
throw new UnsupportedOperationException();
<#else>
fillEmpties(index);
bits.getMutator().setSafe(index, 1);
values.getMutator().setSafe(index, value, start, length);
setCount++;
<#if type.major == "VarLen">lastSet = index;
}
public void setNull(int index){
bits.getMutator().setSafe(index, 0);
}
public void setSkipNull(int index, ${minor.class}Holder holder){
values.getMutator().set(index, holder);
}
public void setSkipNull(int index, Nullable${minor.class}Holder holder){
values.getMutator().set(index, holder);
}
public void set(int index, Nullable${minor.class}Holder holder){
final ${valuesName}.Mutator valuesMutator = values.getMutator();
<#if type.major == "VarLen">
for (int i = lastSet + 1; i < index; i++) {
valuesMutator.set(i, emptyByteArray);
}
bits.getMutator().set(index, holder.isSet);
valuesMutator.set(index, holder);
<#if type.major == "VarLen">lastSet = index;
}
public void set(int index, ${minor.class}Holder holder){
final ${valuesName}.Mutator valuesMutator = values.getMutator();
<#if type.major == "VarLen">
for (int i = lastSet + 1; i < index; i++) {
valuesMutator.set(i, emptyByteArray);
}
bits.getMutator().set(index, 1);
valuesMutator.set(index, holder);
<#if type.major == "VarLen">lastSet = index;
}
public boolean isSafe(int outIndex) {
return outIndex < Nullable${minor.class}Vector.this.getValueCapacity();
}
<#assign fields = minor.fields!type.fields />
public void set(int index, int isSet<#list fields as field><#if field.include!true >, ${field.type} ${field.name}Field ){
final ${valuesName}.Mutator valuesMutator = values.getMutator();
<#if type.major == "VarLen">
for (int i = lastSet + 1; i < index; i++) {
valuesMutator.set(i, emptyByteArray);
}
bits.getMutator().set(index, isSet);
valuesMutator.set(index<#list fields as field><#if field.include!true >, ${field.name}Field);
<#if type.major == "VarLen">lastSet = index;
}
public void setSafe(int index, int isSet<#list fields as field><#if field.include!true >, ${field.type} ${field.name}Field ) {
<#if type.major == "VarLen">
fillEmpties(index);
bits.getMutator().setSafe(index, isSet);
values.getMutator().setSafe(index<#list fields as field><#if field.include!true >, ${field.name}Field);
setCount++;
<#if type.major == "VarLen">lastSet = index;
}
public void setSafe(int index, Nullable${minor.class}Holder value) {
<#if type.major == "VarLen">
fillEmpties(index);
bits.getMutator().setSafe(index, value.isSet);
values.getMutator().setSafe(index, value);
setCount++;
<#if type.major == "VarLen">lastSet = index;
}
public void setSafe(int index, ${minor.class}Holder value) {
<#if type.major == "VarLen">
fillEmpties(index);
bits.getMutator().setSafe(index, 1);
values.getMutator().setSafe(index, value);
setCount++;
<#if type.major == "VarLen">lastSet = index;
}
<#if !(type.major == "VarLen" || minor.class == "Decimal28Sparse" || minor.class == "Decimal38Sparse" || minor.class == "Decimal28Dense" || minor.class == "Decimal38Dense" || minor.class == "Interval" || minor.class == "IntervalDay")>
public void setSafe(int index, ${minor.javaType!type.javaType} value) {
<#if type.major == "VarLen">
fillEmpties(index);
bits.getMutator().setSafe(index, 1);
values.getMutator().setSafe(index, value);
setCount++;
}
@Override
public void setValueCount(int valueCount) {
assert valueCount >= 0;
<#if type.major == "VarLen">
fillEmpties(valueCount);
values.getMutator().setValueCount(valueCount);
bits.getMutator().setValueCount(valueCount);
}
@Override
public void generateTestData(int valueCount){
bits.getMutator().generateTestDataAlt(valueCount);
values.getMutator().generateTestData(valueCount);
<#if type.major = "VarLen">lastSet = valueCount;
setValueCount(valueCount);
}
@Override
public void reset(){
setCount = 0;
<#if type.major = "VarLen">lastSet = -1;
}
}
}
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