/**
* 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.util;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hive.ql.CompilationOpContext;
import org.apache.hadoop.hive.ql.exec.Operator;
import org.apache.hadoop.hive.ql.metadata.HiveException;
import org.apache.hadoop.hive.ql.plan.OperatorDesc;
import org.apache.hadoop.hive.ql.plan.api.OperatorType;
/**
* Operator that captures output emitted by parent.
* Used in unit test only.
*/
public class FakeCaptureOutputOperator extends Operator<FakeCaptureOutputDesc>
implements Serializable {
private static final long serialVersionUID = 1L;
public interface OutputInspector {
public void inspectRow(Object row, int tag) throws HiveException;
}
private OutputInspector outputInspector;
public void setOutputInspector(OutputInspector outputInspector) {
this.outputInspector = outputInspector;
}
public OutputInspector getOutputInspector() {
return outputInspector;
}
private transient List<Object> rows;
public static FakeCaptureOutputOperator addCaptureOutputChild(CompilationOpContext ctx,
Operator<? extends OperatorDesc> op) {
FakeCaptureOutputOperator out = new FakeCaptureOutputOperator(ctx);
List<Operator<? extends OperatorDesc>> listParents =
new ArrayList<Operator<? extends OperatorDesc>>(1);
listParents.add(op);
out.setParentOperators(listParents);
List<Operator<? extends OperatorDesc>> listChildren =
new ArrayList<Operator<? extends OperatorDesc>>(1);
listChildren.add(out);
op.setChildOperators(listChildren);
return out;
}
public List<Object> getCapturedRows() {
return rows;
}
/** Kryo ctor. */
protected FakeCaptureOutputOperator() {
super();
}
public FakeCaptureOutputOperator(CompilationOpContext ctx) {
super(ctx);
}
@Override
public void initializeOp(Configuration conf) throws HiveException {
super.initializeOp(conf);
rows = new ArrayList<Object>();
}
@Override
public void process(Object row, int tag) throws HiveException {
rows.add(row);
if (null != outputInspector) {
outputInspector.inspectRow(row, tag);
}
}
@Override
public OperatorType getType() {
return null;
}
@Override
public String getName() {
return FakeCaptureOutputOperator.getOperatorName();
}
public static String getOperatorName() {
return "FAKE_CAPTURE";
}
}