org.apache.hadoop.hive.ql.exec.vector.VectorReduceSinkOperator Maven / Gradle / Ivy
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package org.apache.hadoop.hive.ql.exec.vector;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hive.ql.CompilationOpContext;
import org.apache.hadoop.hive.ql.exec.ReduceSinkOperator;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.ql.plan.OperatorDesc;
import org.apache.hadoop.hive.ql.plan.ReduceSinkDesc;
import org.apache.hadoop.hive.ql.plan.VectorDesc;
import org.apache.hadoop.hive.ql.plan.VectorReduceSinkDesc;
import org.apache.hadoop.hive.serde2.objectinspector.StructObjectInspector;
import com.google.common.annotations.VisibleForTesting;
public class VectorReduceSinkOperator extends ReduceSinkOperator
implements VectorizationOperator {
private static final long serialVersionUID = 1L;
private VectorizationContext vContext;
private VectorReduceSinkDesc vectorDesc;
// The above members are initialized by the constructor and must not be
// transient.
//---------------------------------------------------------------------------
private transient boolean firstBatch;
private transient VectorExtractRow vectorExtractRow;
protected transient Object[] singleRow;
public VectorReduceSinkOperator(CompilationOpContext ctx,
OperatorDesc conf, VectorizationContext vContext, VectorDesc vectorDesc)
throws HiveException {
this(ctx);
ReduceSinkDesc desc = (ReduceSinkDesc) conf;
this.conf = desc;
this.vContext = vContext;
this.vectorDesc = (VectorReduceSinkDesc) vectorDesc;
}
/** Kryo ctor. */
@VisibleForTesting
public VectorReduceSinkOperator() {
super();
}
public VectorReduceSinkOperator(CompilationOpContext ctx) {
super(ctx);
}
@Override
public VectorizationContext getInputVectorizationContext() {
return vContext;
}
@Override
protected void initializeOp(Configuration hconf) throws HiveException {
// We need a input object inspector that is for the row we will extract out of the
// vectorized row batch, not for example, an original inspector for an ORC table, etc.
inputObjInspectors[0] =
VectorizedBatchUtil.convertToStandardStructObjectInspector((StructObjectInspector) inputObjInspectors[0]);
// Call ReduceSinkOperator with new input inspector.
super.initializeOp(hconf);
firstBatch = true;
}
@Override
public void process(Object data, int tag) throws HiveException {
VectorizedRowBatch batch = (VectorizedRowBatch) data;
if (firstBatch) {
vectorExtractRow = new VectorExtractRow();
vectorExtractRow.init((StructObjectInspector) inputObjInspectors[0], vContext.getProjectedColumns());
singleRow = new Object[vectorExtractRow.getCount()];
firstBatch = false;
}
// VectorizedBatchUtil.debugDisplayBatch( batch, "VectorReduceSinkOperator processOp ");
if (batch.selectedInUse) {
int selected[] = batch.selected;
for (int logical = 0 ; logical < batch.size; logical++) {
int batchIndex = selected[logical];
vectorExtractRow.extractRow(batch, batchIndex, singleRow);
super.process(singleRow, tag);
}
} else {
for (int batchIndex = 0 ; batchIndex < batch.size; batchIndex++) {
vectorExtractRow.extractRow(batch, batchIndex, singleRow);
super.process(singleRow, tag);
}
}
}
@Override
public VectorDesc getVectorDesc() {
return vectorDesc;
}
}