/**
* 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.drill.exec.physical.impl.sort;
import java.util.List;
import org.apache.drill.exec.record.BatchSchema.SelectionVectorMode;
import org.apache.drill.exec.record.RecordBatch;
import org.apache.drill.exec.record.TransferPair;
import org.apache.drill.exec.record.VectorAccessible;
import org.apache.drill.exec.record.VectorContainer;
import org.apache.drill.exec.record.VectorWrapper;
import org.apache.drill.exec.record.selection.SelectionVector2;
import org.apache.drill.exec.vector.ValueVector;
import com.google.common.collect.Lists;
/**
* Holds the data for a particular record batch for later manipulation.
*/
public class RecordBatchData {
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(RecordBatchData.class);
private SelectionVector2 sv2;
private int recordCount;
VectorContainer container = new VectorContainer();
public RecordBatchData(VectorAccessible batch){
List<ValueVector> vectors = Lists.newArrayList();
if (batch instanceof RecordBatch && batch.getSchema().getSelectionVectorMode() == SelectionVectorMode.TWO_BYTE) {
this.sv2 = ((RecordBatch)batch).getSelectionVector2().clone();
} else {
this.sv2 = null;
}
for(VectorWrapper<?> v : batch){
if(v.isHyper()) throw new UnsupportedOperationException("Record batch data can't be created based on a hyper batch.");
TransferPair tp = v.getValueVector().getTransferPair();
tp.transfer();
vectors.add(tp.getTo());
}
container.addCollection(vectors);
recordCount = batch.getRecordCount();
container.setRecordCount(recordCount);
container.buildSchema(batch.getSchema().getSelectionVectorMode());
}
public void canonicalize() {
SelectionVectorMode mode = container.getSchema().getSelectionVectorMode();
container = VectorContainer.canonicalize(container);
container.buildSchema(mode);
}
public int getRecordCount(){
return recordCount;
}
public List<ValueVector> getVectors() {
List<ValueVector> vectors = Lists.newArrayList();
for (VectorWrapper w : container) {
vectors.add(w.getValueVector());
}
return vectors;
}
public void setSv2(SelectionVector2 sv2) {
this.sv2 = sv2;
this.recordCount = sv2.getCount();
this.container.buildSchema(SelectionVectorMode.TWO_BYTE);
}
public SelectionVector2 getSv2() {
return sv2;
}
public VectorContainer getContainer() {
return container;
}
}