/*
* 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.operation.aggregation;
import com.google.common.collect.ImmutableList;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.SettableFuture;
import io.crate.types.DataType;
import io.crate.metadata.FunctionIdent;
import io.crate.metadata.Functions;
import io.crate.operation.aggregation.impl.AggregationImplModule;
import io.crate.operation.collect.InputCollectExpression;
import org.elasticsearch.common.inject.AbstractModule;
import org.elasticsearch.common.inject.Injector;
import org.elasticsearch.common.inject.ModulesBuilder;
import org.junit.Before;
import org.junit.Rule;
import org.junit.rules.ExpectedException;
import java.util.List;
import java.util.Map;
public abstract class AggregationTest {
private Map<String, SettableFuture<Object[][]>> nodeResults;
protected List<ListenableFuture<Object[][]>> results;
private Injector injector;
protected Functions functions;
@Rule
public ExpectedException expectedException = ExpectedException.none();
private Object[][] testData;
class AggregationTestModule extends AbstractModule {
@Override
protected void configure() {
bind(Functions.class).asEagerSingleton();
}
}
@Before
public void setUp() throws Exception {
injector = new ModulesBuilder().add(
new AggregationTestModule(),
new AggregationImplModule()
).createInjector();
functions = injector.getInstance(Functions.class);
}
public Object[][] executeAggregation(String name, DataType dataType, Object[][] data) throws Exception {
FunctionIdent fi;
InputCollectExpression[] inputs;
if (dataType != null) {
fi = new FunctionIdent(name, ImmutableList.of(dataType));
inputs = new InputCollectExpression[]{new InputCollectExpression(0)};
} else {
fi = new FunctionIdent(name, ImmutableList.<DataType>of());
inputs = new InputCollectExpression[0];
}
AggregationFunction impl = (AggregationFunction) functions.get(fi);
AggregationState state = impl.newState();
for (Object[] row : data) {
for (InputCollectExpression i : inputs) {
i.setNextRow(row);
}
impl.iterate(state, inputs);
}
return new Object[][]{{state.value()}};
}
}