/**
* Copyright 2011-2014 Asakusa Framework Team.
*
* Licensed 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 com.asakusafw.compiler.flow.stage;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import java.io.IOException;
import java.util.List;
import org.apache.hadoop.io.Writable;
import org.junit.Test;
import com.asakusafw.compiler.common.Naming;
import com.asakusafw.compiler.flow.JobflowCompilerTestRoot;
import com.asakusafw.compiler.flow.example.SimpleShuffleStage;
import com.asakusafw.compiler.flow.plan.StageBlock;
import com.asakusafw.compiler.flow.plan.StageGraph;
import com.asakusafw.compiler.flow.stage.StageModel.Fragment;
import com.asakusafw.compiler.flow.stage.StageModel.ReduceUnit;
import com.asakusafw.compiler.flow.testing.model.Ex1;
import com.asakusafw.compiler.flow.testing.model.ExSummarized;
import com.asakusafw.runtime.flow.Rendezvous;
import com.asakusafw.runtime.testing.MockResult;
import com.asakusafw.runtime.value.IntOption;
import com.asakusafw.vocabulary.flow.FlowDescription;
/**
* Test for {@link ReduceFragmentEmitter}.
*/
public class ReduceFragmentEmitterTest extends JobflowCompilerTestRoot {
/**
* 単純なシャッフルのテスト。
* @throws Exception 出力に失敗した場合
*/
@SuppressWarnings("deprecation")
@Test
public void simple() throws Exception {
StageModel analyzed = mr(SimpleShuffleStage.class);
ReduceUnit red = analyzed.getReduceUnits().get(0);
assertThat(red.getFragments().size(), is(1));
Fragment fragment = red.getFragments().get(0);
ReduceFragmentEmitter emitter = new ReduceFragmentEmitter(environment);
ShuffleModel shuffle = analyzed.getShuffleModel();
CompiledType name = emitter.emit(fragment, shuffle, analyzed.getStageBlock());
ClassLoader loader = start();
MockResult<ExSummarized> result = MockResult.create();
Rendezvous<Writable> object = createRendezvous(
loader,
name.getQualifiedName(),
result);
Writable key = (Writable) create(loader, shuffle.getCompiled().getKeyTypeName());
Writable value = (Writable) create(loader, shuffle.getCompiled().getValueTypeName());
Ex1 orig = new Ex1();
orig.setValueOption(new IntOption().modify(100));
ExSummarized model = new ExSummarized();
model.setValue(100);
model.setCount(1);
invoke(key, Naming.getShuffleKeySetter(1), model);
invoke(value, Naming.getShuffleValueSetter(1), model);
object.begin();
object.process(value);
object.process(value);
object.process(value);
object.end();
List<ExSummarized> results = result.getResults();
assertThat(results.size(), is(1));
assertThat(results.get(0).getValue(), is(300L));
assertThat(results.get(0).getCount(), is(3L));
}
private StageModel mr(Class<? extends FlowDescription> aClass) throws IOException {
StageGraph graph = jfToStageGraph(aClass);
assertThat(graph.getStages().size(), is(1));
StageBlock target = graph.getStages().get(0);
StageAnalyzer analyzer = new StageAnalyzer(environment);
StageModel analyzed = analyzer.analyze(target, compileShuffle(target));
return analyzed;
}
}