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/**
* 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.exec.vector;
import java.sql.Timestamp;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import org.apache.hadoop.hive.common.type.HiveChar;
import org.apache.hadoop.hive.common.type.HiveDecimal;
import org.apache.hadoop.hive.common.type.HiveVarchar;
import org.apache.hadoop.hive.ql.metadata.HiveException;
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.HiveIntervalDayTimeWritable;
import org.apache.hadoop.hive.serde2.io.HiveIntervalYearMonthWritable;
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.hive.serde2.objectinspector.ObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector;
import org.apache.hadoop.hive.serde2.objectinspector.PrimitiveObjectInspector.PrimitiveCategory;
import org.apache.hadoop.hive.serde2.objectinspector.StructField;
import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector;
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.hadoop.io.Writable;
import org.apache.hive.common.util.DateUtils;
/**
* This class is used as a static factory for VectorColumnAssign.
* Is capable of building assigners from expression nodes or from object inspectors.
*/
public class VectorColumnAssignFactory {
private static abstract class VectorColumnAssignVectorBase
implements VectorColumnAssign {
protected VectorizedRowBatch outBatch;
protected T outCol;
protected void copyValue(T in, int srcIndex, int destIndex) throws HiveException {
throw new HiveException("Internal error: should not reach here");
}
@SuppressWarnings("unchecked")
@Override
public void assignVectorValue(VectorizedRowBatch inBatch, int batchIndex,
int valueColumnIndex, int destIndex) throws HiveException {
T in = (T) inBatch.cols[valueColumnIndex];
if (in.isRepeating) {
if (in.noNulls) {
copyValue(in, 0, destIndex);
}
else {
assignNull(destIndex);
}
}
else {
int srcIndex = inBatch.selectedInUse ? inBatch.selected[batchIndex] : batchIndex;
if (in.noNulls || !in.isNull[srcIndex]) {
copyValue(in, srcIndex, destIndex);
}
else {
assignNull(destIndex);
}
}
}
public VectorColumnAssign init(VectorizedRowBatch out, T cv) {
this.outBatch = out;
this.outCol = cv;
return this;
}
protected void assignNull(int index) {
VectorizedBatchUtil.setNullColIsNullValue(outCol, index);
}
@Override
public void reset() {
}
@Override
public void assignObjectValue(Object value, int destIndex) throws HiveException {
throw new HiveException("Internal error: should not reach here");
}
}
private static abstract class VectorLongColumnAssign
extends VectorColumnAssignVectorBase {
protected void assignLong(long value, int destIndex) {
outCol.vector[destIndex] = value;
}
}
private static abstract class VectorDoubleColumnAssign
extends VectorColumnAssignVectorBase {
protected void assignDouble(double value, int destIndex) {
outCol.vector[destIndex] = value;
}
}
private static abstract class VectorBytesColumnAssign
extends VectorColumnAssignVectorBase {
byte[] pad = new byte[BytesColumnVector.DEFAULT_BUFFER_SIZE];
int padUsed = 0;
protected void assignBytes(byte[] buffer, int start, int length, int destIndex) {
if (padUsed + length <= pad.length) {
System.arraycopy(buffer, start,
pad, padUsed, length);
outCol.vector[destIndex] = pad;
outCol.start[destIndex] = padUsed;
outCol.length[destIndex] = length;
padUsed += length;
}
else {
outCol.vector[destIndex] = Arrays.copyOfRange(buffer,
start, length);
outCol.start[destIndex] = 0;
outCol.length[destIndex] = length;
}
}
@Override
public void reset() {
super.reset();
padUsed = 0;
}
}
private static abstract class VectorDecimalColumnAssign
extends VectorColumnAssignVectorBase {
protected void assignDecimal(HiveDecimal value, int index) {
outCol.set(index, value);
}
protected void assignDecimal(HiveDecimalWritable hdw, int index) {
outCol.set(index, hdw);
}
}
public static VectorColumnAssign[] buildAssigners(VectorizedRowBatch outputBatch)
throws HiveException {
VectorColumnAssign[] vca = new VectorColumnAssign[outputBatch.cols.length];
for(int i=0; i columnMap,
List outputColumnNames) throws HiveException {
StructObjectInspector soi = (StructObjectInspector) outputOI;
VectorColumnAssign[] vcas = new VectorColumnAssign[outputColumnNames.size()];
for (int i=0; i
