/*
* 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.svremover;
import javax.inject.Named;
import org.apache.drill.common.types.TypeProtos.MajorType;
import org.apache.drill.common.types.Types;
import org.apache.drill.exec.exception.SchemaChangeException;
import org.apache.drill.exec.ops.FragmentContext;
import org.apache.drill.exec.record.RecordBatch;
import org.apache.drill.exec.record.VectorWrapper;
import org.apache.drill.exec.record.selection.SelectionVector4;
import org.apache.drill.exec.vector.AllocationHelper;
public abstract class CopierTemplate4 implements Copier{
static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(CopierTemplate4.class);
private SelectionVector4 sv4;
private RecordBatch outgoing;
@Override
public void setupRemover(FragmentContext context, RecordBatch incoming, RecordBatch outgoing) throws SchemaChangeException{
this.outgoing = outgoing;
this.sv4 = incoming.getSelectionVector4();
doSetup(context, incoming, outgoing);
}
@Override
public int copyRecords(int index, int recordCount) throws SchemaChangeException {
for(VectorWrapper<?> out : outgoing){
MajorType type = out.getField().getType();
if (!Types.isFixedWidthType(type) || Types.isRepeated(type)) {
out.getValueVector().allocateNew();
} else {
AllocationHelper.allocate(out.getValueVector(), recordCount, 1);
}
}
int outgoingPosition = 0;
for(int svIndex = index; svIndex < index + recordCount; svIndex++, outgoingPosition++){
int deRefIndex = sv4.get(svIndex);
doEval(deRefIndex, outgoingPosition);
}
return outgoingPosition;
}
public abstract void doSetup(@Named("context") FragmentContext context,
@Named("incoming") RecordBatch incoming,
@Named("outgoing") RecordBatch outgoing)
throws SchemaChangeException;
public abstract void doEval(@Named("inIndex") int inIndex,
@Named("outIndex") int outIndex)
throws SchemaChangeException;
}