/**
* 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.hadoop.hive.ql.io.orc;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.hadoop.hive.ql.exec.vector.BytesColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.ColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.DecimalColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.DoubleColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.ListColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.LongColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.MapColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.StructColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.TimestampColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.UnionColumnVector;
import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch;
import org.apache.hadoop.hive.serde2.io.ByteWritable;
import org.apache.hadoop.hive.serde2.io.DateWritable;
import org.apache.hadoop.hive.serde2.io.DoubleWritable;
import org.apache.hadoop.hive.serde2.io.HiveCharWritable;
import org.apache.hadoop.hive.serde2.io.HiveDecimalWritable;
import org.apache.hadoop.hive.serde2.io.HiveVarcharWritable;
import org.apache.hadoop.hive.serde2.io.ShortWritable;
import org.apache.hadoop.hive.serde2.io.TimestampWritable;
import org.apache.hadoop.io.BooleanWritable;
import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.io.FloatWritable;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.orc.TypeDescription;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class RecordReaderImpl extends org.apache.orc.impl.RecordReaderImpl
implements RecordReader {
static final Logger LOG = LoggerFactory.getLogger(RecordReaderImpl.class);
private final VectorizedRowBatch batch;
private int rowInBatch;
private long baseRow;
protected RecordReaderImpl(ReaderImpl fileReader,
Reader.Options options) throws IOException {
super(fileReader, options);
batch = this.schema.createRowBatch();
rowInBatch = 0;
}
/**
* If the current batch is empty, get a new one.
* @return true if we have rows available.
* @throws IOException
*/
boolean ensureBatch() throws IOException {
if (rowInBatch >= batch.size) {
baseRow = super.getRowNumber();
rowInBatch = 0;
return super.nextBatch(batch);
}
return true;
}
public VectorizedRowBatch createRowBatch() {
return this.schema.createRowBatch();
}
@Override
public long getRowNumber() {
return baseRow + rowInBatch;
}
@Override
public boolean hasNext() throws IOException {
return ensureBatch();
}
@Override
public void seekToRow(long row) throws IOException {
if (row >= baseRow && row < baseRow + batch.size) {
rowInBatch = (int) (row - baseRow);
} else {
super.seekToRow(row);
batch.size = 0;
ensureBatch();
}
}
@Override
public Object next(Object previous) throws IOException {
if (!ensureBatch()) {
return null;
}
if (schema.getCategory() == TypeDescription.Category.STRUCT) {
OrcStruct result;
List<TypeDescription> children = schema.getChildren();
int numberOfChildren = children.size();
if (previous == null || previous.getClass() != OrcStruct.class) {
result = new OrcStruct(numberOfChildren);
previous = result;
} else {
result = (OrcStruct) previous;
if (result.getNumFields() != numberOfChildren) {
result.setNumFields(numberOfChildren);
}
}
for(int i=0; i < numberOfChildren; ++i) {
result.setFieldValue(i, nextValue(batch.cols[i], rowInBatch,
children.get(i), result.getFieldValue(i)));
}
} else {
previous = nextValue(batch.cols[0], rowInBatch, schema, previous);
}
rowInBatch += 1;
return previous;
}
@Override
public boolean nextBatch(VectorizedRowBatch theirBatch) throws IOException {
// If the user hasn't been reading by row, use the fast path.
if (rowInBatch >= batch.size) {
return super.nextBatch(theirBatch);
}
copyIntoBatch(theirBatch, batch, rowInBatch);
rowInBatch += theirBatch.size;
return theirBatch.size > 0;
}
@Override
public void close() throws IOException {
super.close();
// free the memory for the column vectors
batch.cols = null;
}
/* Routines for stubbing into Writables */
static BooleanWritable nextBoolean(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
BooleanWritable result;
if (previous == null || previous.getClass() != BooleanWritable.class) {
result = new BooleanWritable();
} else {
result = (BooleanWritable) previous;
}
result.set(((LongColumnVector) vector).vector[row] != 0);
return result;
} else {
return null;
}
}
static ByteWritable nextByte(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
ByteWritable result;
if (previous == null || previous.getClass() != ByteWritable.class) {
result = new ByteWritable();
} else {
result = (ByteWritable) previous;
}
result.set((byte) ((LongColumnVector) vector).vector[row]);
return result;
} else {
return null;
}
}
static ShortWritable nextShort(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
ShortWritable result;
if (previous == null || previous.getClass() != ShortWritable.class) {
result = new ShortWritable();
} else {
result = (ShortWritable) previous;
}
result.set((short) ((LongColumnVector) vector).vector[row]);
return result;
} else {
return null;
}
}
static IntWritable nextInt(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
IntWritable result;
if (previous == null || previous.getClass() != IntWritable.class) {
result = new IntWritable();
} else {
result = (IntWritable) previous;
}
result.set((int) ((LongColumnVector) vector).vector[row]);
return result;
} else {
return null;
}
}
static LongWritable nextLong(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
LongWritable result;
if (previous == null || previous.getClass() != LongWritable.class) {
result = new LongWritable();
} else {
result = (LongWritable) previous;
}
result.set(((LongColumnVector) vector).vector[row]);
return result;
} else {
return null;
}
}
static FloatWritable nextFloat(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
FloatWritable result;
if (previous == null || previous.getClass() != FloatWritable.class) {
result = new FloatWritable();
} else {
result = (FloatWritable) previous;
}
result.set((float) ((DoubleColumnVector) vector).vector[row]);
return result;
} else {
return null;
}
}
static DoubleWritable nextDouble(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
DoubleWritable result;
if (previous == null || previous.getClass() != DoubleWritable.class) {
result = new DoubleWritable();
} else {
result = (DoubleWritable) previous;
}
result.set(((DoubleColumnVector) vector).vector[row]);
return result;
} else {
return null;
}
}
static Text nextString(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
Text result;
if (previous == null || previous.getClass() != Text.class) {
result = new Text();
} else {
result = (Text) previous;
}
BytesColumnVector bytes = (BytesColumnVector) vector;
result.set(bytes.vector[row], bytes.start[row], bytes.length[row]);
return result;
} else {
return null;
}
}
static HiveCharWritable nextChar(ColumnVector vector,
int row,
int size,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
HiveCharWritable result;
if (previous == null || previous.getClass() != HiveCharWritable.class) {
result = new HiveCharWritable();
} else {
result = (HiveCharWritable) previous;
}
BytesColumnVector bytes = (BytesColumnVector) vector;
result.set(bytes.toString(row), size);
return result;
} else {
return null;
}
}
static HiveVarcharWritable nextVarchar(ColumnVector vector,
int row,
int size,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
HiveVarcharWritable result;
if (previous == null || previous.getClass() != HiveVarcharWritable.class) {
result = new HiveVarcharWritable();
} else {
result = (HiveVarcharWritable) previous;
}
BytesColumnVector bytes = (BytesColumnVector) vector;
result.set(bytes.toString(row), size);
return result;
} else {
return null;
}
}
static BytesWritable nextBinary(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
BytesWritable result;
if (previous == null || previous.getClass() != BytesWritable.class) {
result = new BytesWritable();
} else {
result = (BytesWritable) previous;
}
BytesColumnVector bytes = (BytesColumnVector) vector;
result.set(bytes.vector[row], bytes.start[row], bytes.length[row]);
return result;
} else {
return null;
}
}
static HiveDecimalWritable nextDecimal(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
HiveDecimalWritable result;
if (previous == null || previous.getClass() != HiveDecimalWritable.class) {
result = new HiveDecimalWritable();
} else {
result = (HiveDecimalWritable) previous;
}
result.set(((DecimalColumnVector) vector).vector[row]);
return result;
} else {
return null;
}
}
static DateWritable nextDate(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
DateWritable result;
if (previous == null || previous.getClass() != DateWritable.class) {
result = new DateWritable();
} else {
result = (DateWritable) previous;
}
int date = (int) ((LongColumnVector) vector).vector[row];
result.set(date);
return result;
} else {
return null;
}
}
static TimestampWritable nextTimestamp(ColumnVector vector,
int row,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
TimestampWritable result;
if (previous == null || previous.getClass() != TimestampWritable.class) {
result = new TimestampWritable();
} else {
result = (TimestampWritable) previous;
}
TimestampColumnVector tcv = (TimestampColumnVector) vector;
result.setInternal(tcv.time[row], tcv.nanos[row]);
return result;
} else {
return null;
}
}
static OrcStruct nextStruct(ColumnVector vector,
int row,
TypeDescription schema,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
OrcStruct result;
List<TypeDescription> childrenTypes = schema.getChildren();
int numChildren = childrenTypes.size();
if (previous == null || previous.getClass() != OrcStruct.class) {
result = new OrcStruct(numChildren);
} else {
result = (OrcStruct) previous;
result.setNumFields(numChildren);
}
StructColumnVector struct = (StructColumnVector) vector;
for(int f=0; f < numChildren; ++f) {
result.setFieldValue(f, nextValue(struct.fields[f], row,
childrenTypes.get(f), result.getFieldValue(f)));
}
return result;
} else {
return null;
}
}
static OrcUnion nextUnion(ColumnVector vector,
int row,
TypeDescription schema,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
OrcUnion result;
List<TypeDescription> childrenTypes = schema.getChildren();
if (previous == null || previous.getClass() != OrcUnion.class) {
result = new OrcUnion();
} else {
result = (OrcUnion) previous;
}
UnionColumnVector union = (UnionColumnVector) vector;
byte tag = (byte) union.tags[row];
result.set(tag, nextValue(union.fields[tag], row, childrenTypes.get(tag),
result.getObject()));
return result;
} else {
return null;
}
}
static ArrayList<Object> nextList(ColumnVector vector,
int row,
TypeDescription schema,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
ArrayList<Object> result;
if (previous == null || previous.getClass() != ArrayList.class) {
result = new ArrayList<>();
} else {
result = (ArrayList<Object>) previous;
}
ListColumnVector list = (ListColumnVector) vector;
int length = (int) list.lengths[row];
int offset = (int) list.offsets[row];
result.ensureCapacity(length);
int oldLength = result.size();
int idx = 0;
TypeDescription childType = schema.getChildren().get(0);
while (idx < length && idx < oldLength) {
result.set(idx, nextValue(list.child, offset + idx, childType,
result.get(idx)));
idx += 1;
}
if (length < oldLength) {
result.subList(length,result.size()).clear();
} else if (oldLength < length) {
while (idx < length) {
result.add(nextValue(list.child, offset + idx, childType, null));
idx += 1;
}
}
return result;
} else {
return null;
}
}
static HashMap<Object,Object> nextMap(ColumnVector vector,
int row,
TypeDescription schema,
Object previous) {
if (vector.isRepeating) {
row = 0;
}
if (vector.noNulls || !vector.isNull[row]) {
MapColumnVector map = (MapColumnVector) vector;
int length = (int) map.lengths[row];
int offset = (int) map.offsets[row];
TypeDescription keyType = schema.getChildren().get(0);
TypeDescription valueType = schema.getChildren().get(1);
HashMap<Object,Object> result;
if (previous == null || previous.getClass() != HashMap.class) {
result = new HashMap<Object,Object>(length);
} else {
result = (HashMap<Object,Object>) previous;
// I couldn't think of a good way to reuse the keys and value objects
// without even more allocations, so take the easy and safe approach.
result.clear();
}
for(int e=0; e < length; ++e) {
result.put(nextValue(map.keys, e + offset, keyType, null),
nextValue(map.values, e + offset, valueType, null));
}
return result;
} else {
return null;
}
}
static Object nextValue(ColumnVector vector,
int row,
TypeDescription schema,
Object previous) {
switch (schema.getCategory()) {
case BOOLEAN:
return nextBoolean(vector, row, previous);
case BYTE:
return nextByte(vector, row, previous);
case SHORT:
return nextShort(vector, row, previous);
case INT:
return nextInt(vector, row, previous);
case LONG:
return nextLong(vector, row, previous);
case FLOAT:
return nextFloat(vector, row, previous);
case DOUBLE:
return nextDouble(vector, row, previous);
case STRING:
return nextString(vector, row, previous);
case CHAR:
return nextChar(vector, row, schema.getMaxLength(), previous);
case VARCHAR:
return nextVarchar(vector, row, schema.getMaxLength(), previous);
case BINARY:
return nextBinary(vector, row, previous);
case DECIMAL:
return nextDecimal(vector, row, previous);
case DATE:
return nextDate(vector, row, previous);
case TIMESTAMP:
return nextTimestamp(vector, row, previous);
case STRUCT:
return nextStruct(vector, row, schema, previous);
case UNION:
return nextUnion(vector, row, schema, previous);
case LIST:
return nextList(vector, row, schema, previous);
case MAP:
return nextMap(vector, row, schema, previous);
default:
throw new IllegalArgumentException("Unknown type " + schema);
}
}
/* Routines for copying between VectorizedRowBatches */
void copyLongColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
LongColumnVector lsource = (LongColumnVector) source;
LongColumnVector ldest = (LongColumnVector) destination;
ldest.isRepeating = lsource.isRepeating;
ldest.noNulls = lsource.noNulls;
if (source.isRepeating) {
ldest.isNull[0] = lsource.isNull[0];
ldest.vector[0] = lsource.vector[0];
} else {
if (!lsource.noNulls) {
for(int r=0; r < length; ++r) {
ldest.isNull[r] = lsource.isNull[sourceOffset + r];
ldest.vector[r] = lsource.vector[sourceOffset + r];
}
} else {
for (int r = 0; r < length; ++r) {
ldest.vector[r] = lsource.vector[sourceOffset + r];
}
}
}
}
void copyDoubleColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
DoubleColumnVector castedSource = (DoubleColumnVector) source;
DoubleColumnVector castedDestination = (DoubleColumnVector) destination;
if (source.isRepeating) {
castedDestination.isRepeating = true;
castedDestination.noNulls = castedSource.noNulls;
castedDestination.isNull[0] = castedSource.isNull[0];
castedDestination.vector[0] = castedSource.vector[0];
} else {
if (!castedSource.noNulls) {
castedDestination.noNulls = true;
for(int r=0; r < length; ++r) {
castedDestination.isNull[r] = castedSource.isNull[sourceOffset + r];
}
}
for(int r=0; r < length; ++r) {
castedDestination.vector[r] = castedSource.vector[sourceOffset + r];
}
}
}
void copyTimestampColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
TimestampColumnVector castedSource = (TimestampColumnVector) source;
TimestampColumnVector castedDestination = (TimestampColumnVector) destination;
castedDestination.isRepeating = castedSource.isRepeating;
castedDestination.noNulls = castedSource.noNulls;
if (source.isRepeating) {
castedDestination.isNull[0] = castedSource.isNull[0];
castedDestination.time[0] = castedSource.time[0];
castedDestination.nanos[0] = castedSource.nanos[0];
} else {
if (!castedSource.noNulls) {
castedDestination.noNulls = true;
for(int r=0; r < length; ++r) {
castedDestination.isNull[r] = castedSource.isNull[sourceOffset + r];
castedDestination.time[r] = castedSource.time[sourceOffset + r];
castedDestination.nanos[r] = castedSource.nanos[sourceOffset + r];
}
} else {
for (int r = 0; r < length; ++r) {
castedDestination.time[r] = castedSource.time[sourceOffset + r];
castedDestination.nanos[r] = castedSource.nanos[sourceOffset + r];
}
}
}
}
void copyDecimalColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
DecimalColumnVector castedSource = (DecimalColumnVector) source;
DecimalColumnVector castedDestination = (DecimalColumnVector) destination;
castedDestination.isRepeating = castedSource.isRepeating;
castedDestination.noNulls = castedSource.noNulls;
if (source.isRepeating) {
castedDestination.isNull[0] = castedSource.isNull[0];
if (!castedSource.isNull[0]) {
castedDestination.set(0, castedSource.vector[0]);
}
} else {
if (!castedSource.noNulls) {
for(int r=0; r < length; ++r) {
castedDestination.isNull[r] = castedSource.isNull[sourceOffset + r];
if (!castedDestination.isNull[r]) {
castedDestination.set(r, castedSource.vector[r]);
}
}
} else {
for (int r = 0; r < length; ++r) {
castedDestination.set(r, castedSource.vector[r]);
}
}
}
}
void copyBytesColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
BytesColumnVector castedSource = (BytesColumnVector) source;
BytesColumnVector castedDestination = (BytesColumnVector) destination;
castedDestination.isRepeating = castedSource.isRepeating;
castedDestination.noNulls = castedSource.noNulls;
if (source.isRepeating) {
castedDestination.isNull[0] = castedSource.isNull[0];
if (!castedSource.isNull[0]) {
castedDestination.setVal(0, castedSource.vector[0],
castedSource.start[0], castedSource.length[0]);
}
} else {
if (!castedSource.noNulls) {
for(int r=0; r < length; ++r) {
castedDestination.isNull[r] = castedSource.isNull[sourceOffset + r];
if (!castedDestination.isNull[r]) {
castedDestination.setVal(r, castedSource.vector[sourceOffset + r],
castedSource.start[sourceOffset + r],
castedSource.length[sourceOffset + r]);
}
}
} else {
for (int r = 0; r < length; ++r) {
castedDestination.setVal(r, castedSource.vector[sourceOffset + r],
castedSource.start[sourceOffset + r],
castedSource.length[sourceOffset + r]);
}
}
}
}
void copyStructColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
StructColumnVector castedSource = (StructColumnVector) source;
StructColumnVector castedDestination = (StructColumnVector) destination;
castedDestination.isRepeating = castedSource.isRepeating;
castedDestination.noNulls = castedSource.noNulls;
if (source.isRepeating) {
castedDestination.isNull[0] = castedSource.isNull[0];
for(int c=0; c > castedSource.fields.length; ++c) {
copyColumn(castedDestination.fields[c], castedSource.fields[c], 0, 1);
}
} else {
if (!castedSource.noNulls) {
for (int r = 0; r < length; ++r) {
castedDestination.isNull[r] = castedSource.isNull[sourceOffset + r];
}
} else {
for (int c = 0; c > castedSource.fields.length; ++c) {
copyColumn(castedDestination.fields[c], castedSource.fields[c],
sourceOffset, length);
}
}
}
}
void copyUnionColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
UnionColumnVector castedSource = (UnionColumnVector) source;
UnionColumnVector castedDestination = (UnionColumnVector) destination;
castedDestination.isRepeating = castedSource.isRepeating;
castedDestination.noNulls = castedSource.noNulls;
if (source.isRepeating) {
castedDestination.isNull[0] = castedSource.isNull[0];
int tag = castedSource.tags[0];
castedDestination.tags[0] = tag;
if (!castedDestination.isNull[0]) {
copyColumn(castedDestination.fields[tag], castedSource.fields[tag], 0,
1);
}
} else {
if (!castedSource.noNulls) {
for (int r = 0; r < length; ++r) {
castedDestination.isNull[r] = castedSource.isNull[sourceOffset + r];
castedDestination.tags[r] = castedSource.tags[sourceOffset + r];
}
} else {
for(int r=0; r < length; ++r) {
castedDestination.tags[r] = castedSource.tags[sourceOffset + r];
}
}
for(int c=0; c > castedSource.fields.length; ++c) {
copyColumn(castedDestination.fields[c], castedSource.fields[c],
sourceOffset, length);
}
}
}
void copyListColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
ListColumnVector castedSource = (ListColumnVector) source;
ListColumnVector castedDestination = (ListColumnVector) destination;
castedDestination.isRepeating = castedSource.noNulls;
castedDestination.noNulls = castedSource.noNulls;
if (source.isRepeating) {
castedDestination.isNull[0] = castedSource.isNull[0];
castedDestination.offsets[0] = 0;
castedDestination.lengths[0] = castedSource.lengths[0];
copyColumn(castedDestination.child, castedSource.child,
(int) castedSource.offsets[0], (int) castedSource.lengths[0]);
} else {
if (!castedSource.noNulls) {
for (int r = 0; r < length; ++r) {
castedDestination.isNull[r] = castedSource.isNull[sourceOffset + r];
}
}
int minOffset = Integer.MAX_VALUE;
int maxOffset = Integer.MIN_VALUE;
for(int r=0; r < length; ++r) {
int childOffset = (int) castedSource.offsets[r + sourceOffset];
int childLength = (int) castedSource.lengths[r + sourceOffset];
castedDestination.offsets[r] = childOffset;
castedDestination.lengths[r] = childLength;
minOffset = Math.min(minOffset, childOffset);
maxOffset = Math.max(maxOffset, childOffset + childLength);
}
if (minOffset <= maxOffset) {
castedDestination.childCount = maxOffset - minOffset + 1;
copyColumn(castedDestination.child, castedSource.child,
minOffset, castedDestination.childCount);
} else {
castedDestination.childCount = 0;
}
}
}
void copyMapColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
MapColumnVector castedSource = (MapColumnVector) source;
MapColumnVector castedDestination = (MapColumnVector) destination;
castedDestination.isRepeating = castedSource.noNulls;
castedDestination.noNulls = castedSource.noNulls;
if (source.isRepeating) {
castedDestination.isNull[0] = castedSource.isNull[0];
castedDestination.offsets[0] = 0;
castedDestination.lengths[0] = castedSource.lengths[0];
copyColumn(castedDestination.keys, castedSource.keys,
(int) castedSource.offsets[0], (int) castedSource.lengths[0]);
copyColumn(castedDestination.values, castedSource.values,
(int) castedSource.offsets[0], (int) castedSource.lengths[0]);
} else {
if (!castedSource.noNulls) {
for (int r = 0; r < length; ++r) {
castedDestination.isNull[r] = castedSource.isNull[sourceOffset + r];
}
}
int minOffset = Integer.MAX_VALUE;
int maxOffset = Integer.MIN_VALUE;
for(int r=0; r < length; ++r) {
int childOffset = (int) castedSource.offsets[r + sourceOffset];
int childLength = (int) castedSource.lengths[r + sourceOffset];
castedDestination.offsets[r] = childOffset;
castedDestination.lengths[r] = childLength;
minOffset = Math.min(minOffset, childOffset);
maxOffset = Math.max(maxOffset, childOffset + childLength);
}
if (minOffset <= maxOffset) {
castedDestination.childCount = maxOffset - minOffset + 1;
copyColumn(castedDestination.keys, castedSource.keys,
minOffset, castedDestination.childCount);
copyColumn(castedDestination.values, castedSource.values,
minOffset, castedDestination.childCount);
} else {
castedDestination.childCount = 0;
}
}
}
void copyColumn(ColumnVector destination,
ColumnVector source,
int sourceOffset,
int length) {
if (source.getClass() == LongColumnVector.class) {
copyLongColumn(destination, source, sourceOffset, length);
} else if (source.getClass() == DoubleColumnVector.class) {
copyDoubleColumn(destination, source, sourceOffset, length);
} else if (source.getClass() == BytesColumnVector.class) {
copyBytesColumn(destination, source, sourceOffset, length);
} else if (source.getClass() == TimestampColumnVector.class) {
copyTimestampColumn(destination, source, sourceOffset, length);
} else if (source.getClass() == DecimalColumnVector.class) {
copyDecimalColumn(destination, source, sourceOffset, length);
} else if (source.getClass() == StructColumnVector.class) {
copyStructColumn(destination, source, sourceOffset, length);
} else if (source.getClass() == UnionColumnVector.class) {
copyUnionColumn(destination, source, sourceOffset, length);
} else if (source.getClass() == ListColumnVector.class) {
copyListColumn(destination, source, sourceOffset, length);
} else if (source.getClass() == MapColumnVector.class) {
copyMapColumn(destination, source, sourceOffset, length);
}
}
/**
* Copy part of a batch into the destination batch.
* @param destination the batch to copy into
* @param source the batch to copy from
* @param sourceStart the row number to start from in the source
* @return the number of rows copied
*/
void copyIntoBatch(VectorizedRowBatch destination,
VectorizedRowBatch source,
int sourceStart) {
int rows = Math.min(source.size - sourceStart, destination.getMaxSize());
for(int c=0; c < source.cols.length; ++c) {
destination.cols[c].reset();
copyColumn(destination.cols[c], source.cols[c], sourceStart, rows);
}
destination.size = rows;
}
}