| /**
* 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.ref.rops;
import com.google.common.collect.Lists;
import org.apache.drill.common.expression.ExpressionPosition;
import org.apache.drill.common.expression.FieldReference;
import org.apache.drill.common.expression.SchemaPath;
import org.apache.drill.common.logical.data.WindowFrame;
import org.apache.drill.exec.ref.RecordIterator;
import org.apache.drill.exec.ref.RecordPointer;
import org.apache.drill.exec.ref.TestUtils;
import org.junit.Test;
import java.io.IOException;
import java.util.List;
import static junit.framework.Assert.assertEquals;
public class WindowFrameROPTest {
final String input = "" +
"{id: 0}" +
"{id: 1}" +
"{id: 2}" +
"{id: 3}" +
"{id: 4}";
@Test
public void windowShouldWorkWithBefore() throws IOException {
WindowFrameROP rop = new WindowFrameROP(new WindowFrame(null, null, -2L, 0L));
RecordIterator incoming = TestUtils.jsonToRecordIterator("test", input);
rop.setInput(incoming);
RecordIterator out = rop.getOutput();
List<WindowObj> windows = Lists.newArrayList(
new WindowObj(0, 0, 0),
new WindowObj(1, 0, 0),
new WindowObj(1, 1, 1),
new WindowObj(2, 0, 0),
new WindowObj(2, 1, 1),
new WindowObj(2, 2, -1),
new WindowObj(3, 1, 0),
new WindowObj(3, 2, 1),
new WindowObj(3, 3, -1),
new WindowObj(4, 2, 0),
new WindowObj(4, 3, 1),
new WindowObj(4, 4, -1)
);
verifyWindowOrder(windows, out);
}
@Test
public void windowShouldWorkWithAfter() throws IOException {
WindowFrameROP rop = new WindowFrameROP(new WindowFrame(null, null, 0L, 2L));
RecordIterator incoming = TestUtils.jsonToRecordIterator("test", input);
rop.setInput(incoming);
RecordIterator out = rop.getOutput();
List<WindowObj> windows = Lists.newArrayList(
new WindowObj(0, 0, 0),
new WindowObj(0, 1, 1),
new WindowObj(0, 2, -1),
new WindowObj(1, 1, 0),
new WindowObj(1, 2, 1),
new WindowObj(1, 3, -1),
new WindowObj(2, 2, 0),
new WindowObj(2, 3, 1),
new WindowObj(2, 4, -1),
new WindowObj(3, 3, 0),
new WindowObj(3, 4, 1),
new WindowObj(4, 4, 0)
);
verifyWindowOrder(windows, out);
}
@Test
public void windowShouldWorkWithBeforeAndAfter() throws IOException {
WindowFrameROP rop = new WindowFrameROP(new WindowFrame(null, null, -2L, 2L));
RecordIterator incoming = TestUtils.jsonToRecordIterator("test", input);
rop.setInput(incoming);
RecordIterator out = rop.getOutput();
List<WindowObj> windows = Lists.newArrayList(
new WindowObj(0, 0, 0),
new WindowObj(0, 1, 1),
new WindowObj(0, 2, -1),
new WindowObj(1, 0, 0),
new WindowObj(1, 1, 1),
new WindowObj(1, 2, -1),
new WindowObj(1, 3, 2),
new WindowObj(2, 0, 0),
new WindowObj(2, 1, 1),
new WindowObj(2, 2, -1),
new WindowObj(2, 3, 2),
new WindowObj(2, 4, -2),
new WindowObj(3, 1, 0),
new WindowObj(3, 2, 1),
new WindowObj(3, 3, -1),
new WindowObj(3, 4, 2),
new WindowObj(4, 2, 0),
new WindowObj(4, 3, 1),
new WindowObj(4, 4, -1)
);
verifyWindowOrder(windows, out);
}
@Test
public void windowShouldNotCrossWithin() throws IOException {
String withinInput = "" +
"{id: 0, v: 0}" +
"{id: 1, v: 1}" +
"{id: 2, v: 2}" +
"{id: 3, v: 3}" +
"{id: 4, v: 4}";
WindowFrameROP rop = new WindowFrameROP(new WindowFrame(new FieldReference("test.v", ExpressionPosition.UNKNOWN), null, -2L, 2L));
RecordIterator incoming = TestUtils.jsonToRecordIterator("test", withinInput);
rop.setInput(incoming);
RecordIterator out = rop.getOutput();
List<WindowObj> windows = Lists.newArrayList(
new WindowObj(0, 0, 0),
new WindowObj(1, 1, 0),
new WindowObj(2, 2, 0),
new WindowObj(3, 3, 0),
new WindowObj(4, 4, 0)
);
verifyWindowOrder(windows, out);
}
@Test
public void windowShouldNotCrossWithins() throws IOException {
String withinInput = "" +
"{id: 0, v: 0}" +
"{id: 1, v: 0}" +
"{id: 2, v: 1}" +
"{id: 3, v: 1}" +
"{id: 4, v: 2}";
WindowFrameROP rop = new WindowFrameROP(new WindowFrame(new FieldReference("test.v", ExpressionPosition.UNKNOWN), null, -1L, 2L));
RecordIterator incoming = TestUtils.jsonToRecordIterator("test", withinInput);
rop.setInput(incoming);
RecordIterator out = rop.getOutput();
List<WindowObj> windows = Lists.newArrayList(
new WindowObj(0, 0, 0),
new WindowObj(0, 1, 1),
new WindowObj(1, 0, 0),
new WindowObj(1, 1, 1),
new WindowObj(2, 2, 0),
new WindowObj(2, 3, 1),
new WindowObj(3, 2, 0),
new WindowObj(3, 3, 1),
new WindowObj(4, 4, 0)
);
verifyWindowOrder(windows, out);
}
@Test
public void windowShouldNotCrossWithinAndRange() throws IOException {
String withinInput = "" +
"{id: 0, v: 0}" +
"{id: 1, v: 0}" +
"{id: 2, v: 0}" +
"{id: 3, v: 0}" +
"{id: 4, v: 1}" +
"{id: 5, v: 1}" +
"{id: 6, v: 2}";
WindowFrameROP rop = new WindowFrameROP(new WindowFrame(new FieldReference("test.v", ExpressionPosition.UNKNOWN), null, -1L, 3L));
RecordIterator incoming = TestUtils.jsonToRecordIterator("test", withinInput);
rop.setInput(incoming);
RecordIterator out = rop.getOutput();
List<WindowObj> windows = Lists.newArrayList(
new WindowObj(0, 0, 0),
new WindowObj(0, 1, 1),
new WindowObj(0, 2, -1),
new WindowObj(0, 3, 2),
new WindowObj(1, 0, 0),
new WindowObj(1, 1, 1),
new WindowObj(1, 2, -1),
new WindowObj(1, 3, 2),
new WindowObj(2, 1, 0),
new WindowObj(2, 2, 1),
new WindowObj(2, 3, -1),
new WindowObj(3, 2, 0),
new WindowObj(3, 3, 1),
new WindowObj(4, 4, 0),
new WindowObj(4, 5, 1),
new WindowObj(5, 4, 0),
new WindowObj(5, 5, 1),
new WindowObj(6, 6, 0)
);
verifyWindowOrder(windows, out);
}
private void verifyWindowOrder(List<WindowObj> expectedIds, RecordIterator out) {
verifyWindowOrder(expectedIds, out, new SchemaPath("ref.segment", ExpressionPosition.UNKNOWN), new SchemaPath("ref.position", ExpressionPosition.UNKNOWN));
}
private void verifyWindowOrder(List<WindowObj> expectedIds, RecordIterator out, SchemaPath segment, SchemaPath position) {
RecordIterator.NextOutcome outcome = out.next();
RecordPointer pointer = out.getRecordPointer();
int count = 0;
SchemaPath id = new SchemaPath("test.id", ExpressionPosition.UNKNOWN);
int expectedSize = expectedIds.size();
while (outcome != RecordIterator.NextOutcome.NONE_LEFT) {
count += 1;
WindowObj windowObj = expectedIds.get(count - 1);
//System.out.println(windowObj);
assertEquals("Id mismatch", windowObj.id, pointer.getField(id).getAsNumeric().getAsInt());
assertEquals("Window id mismatch", windowObj.windowId, pointer.getField(segment).getAsNumeric().getAsInt());
assertEquals("Position mismatch", windowObj.position, pointer.getField(position).getAsNumeric().getAsInt());
outcome = out.next();
}
assertEquals(expectedSize, count);
}
private class WindowObj {
int id;
int position;
int windowId;
private WindowObj(int windowId, int id, int position) {
this.id = id;
this.position = position;
this.windowId = windowId;
}
@Override
public String toString() {
return "WindowObj{" +
"id=" + id +
", position=" + position +
", windowId=" + windowId +
'}';
}
}
}
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