/*
* Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
* license agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial agreement.
*/
package io.crate.planner.projection;
import com.google.common.collect.ImmutableList;
import io.crate.metadata.FunctionIdent;
import io.crate.metadata.FunctionInfo;
import io.crate.operation.aggregation.impl.CountAggregation;
import io.crate.planner.RowGranularity;
import io.crate.planner.symbol.Aggregation;
import io.crate.planner.symbol.DataTypeSymbol;
import io.crate.planner.symbol.Reference;
import io.crate.planner.symbol.Symbol;
import io.crate.types.DataType;
import io.crate.types.DataTypes;
import org.elasticsearch.common.io.stream.BytesStreamInput;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.junit.Test;
import java.util.Arrays;
import static io.crate.testing.TestingHelpers.createReference;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
public class GroupProjectionTest {
@Test
public void testStreaming() throws Exception {
GroupProjection p = new GroupProjection();
p.keys(
ImmutableList.<DataTypeSymbol>of(
createReference("foo", DataTypes.STRING),
createReference("bar", DataTypes.SHORT)
));
p.values(ImmutableList.<Aggregation>of());
BytesStreamOutput out = new BytesStreamOutput();
Projection.toStream(p, out);
BytesStreamInput in = new BytesStreamInput(out.bytes());
GroupProjection p2 = (GroupProjection) Projection.fromStream(in);
assertEquals(p, p2);
}
@Test
public void testStreaming2() throws Exception {
Reference nameRef = createReference("name", DataTypes.STRING);
GroupProjection groupProjection = new GroupProjection();
groupProjection.keys(Arrays.<DataTypeSymbol>asList(nameRef));
groupProjection.values(Arrays.asList(
new Aggregation(
new FunctionInfo(new FunctionIdent(CountAggregation.NAME, ImmutableList.<DataType>of()), DataTypes.LONG),
ImmutableList.<Symbol>of(),
Aggregation.Step.PARTIAL,
Aggregation.Step.FINAL
)
));
BytesStreamOutput out = new BytesStreamOutput();
Projection.toStream(groupProjection, out);
BytesStreamInput in = new BytesStreamInput(out.bytes());
GroupProjection p2 = (GroupProjection) Projection.fromStream(in);
assertThat(p2.keys.size(), is(1));
assertThat(p2.values().size(), is(1));
}
@Test
public void testStreamingGranularity() throws Exception {
GroupProjection p = new GroupProjection();
p.keys(
ImmutableList.<DataTypeSymbol>of(
createReference("foo", DataTypes.STRING),
createReference("bar", DataTypes.SHORT)
));
p.values(ImmutableList.<Aggregation>of());
p.setRequiredGranularity(RowGranularity.SHARD);
BytesStreamOutput out = new BytesStreamOutput();
Projection.toStream(p, out);
BytesStreamInput in = new BytesStreamInput(out.bytes());
GroupProjection p2 = (GroupProjection) Projection.fromStream(in);
assertEquals(p, p2);
}
}