private List<FieldDeclaration> prepareFields() {
List<FieldDeclaration> fields = Lists.create();
// shufles
for (ShuffleModel.Segment segment : shuffle.getSegments()) {
SimpleName shuffleName = names.create("shuffle");
shuffleNames.put(segment, shuffleName);
Name shuffleTypeName = segment.getCompiled().getCombineOutputType().getQualifiedName();
fields.add(
factory.newFieldDeclaration(
null,
new AttributeBuilder(factory).Private().toAttributes(),
importer.toType(shuffleTypeName),
shuffleName,
null));
}
// rendezvous
for (ReduceUnit unit : reduceUnits) {
if (unit.canCombine() == false) {
continue;
}
Fragment first = unit.getFragments().get(0);
SimpleName rendezvousName = names.create("combine");
rendezvousNames.put(first, rendezvousName);
fields.add(
factory.newFieldDeclaration(
null,
new AttributeBuilder(factory).Private().toAttributes(),
importer.toType(first.getCompiled().getQualifiedName()),
rendezvousName,
null));
}
return fields;
}
private MethodDeclaration createSetup() {
Map<FlowElementInput, Segment> segments = Maps.create();
List<Statement> statements = Lists.create();
// shuffle outputs
for (Map.Entry<ShuffleModel.Segment, SimpleName> entry : shuffleNames.entrySet()) {
ShuffleModel.Segment segment = entry.getKey();
SimpleName name = entry.getValue();
Name shuffleTypeName = segment.getCompiled().getCombineOutputType().getQualifiedName();
statements.add(
new ExpressionBuilder(factory, factory.newThis())
.field(name)
.assignFrom(
new TypeBuilder(factory, importer.toType(shuffleTypeName))
.newObject(context)
.toExpression())
.toStatement());
segments.put(segment.getPort(), segment);
}
// rendezvous
for (Map.Entry<Fragment, SimpleName> entry : rendezvousNames.entrySet()) {
Fragment fragment = entry.getKey();
Type rendezvousType = importer.toType(fragment.getCompiled().getQualifiedName());
List<Expression> arguments = Lists.create();
for (FlowElementInput input : fragment.getInputPorts()) {
Segment segment = segments.get(input);
assert segment != null;
SimpleName shuffleName = shuffleNames.get(segment);
assert shuffleName != null;
arguments.add(
new ExpressionBuilder(factory, factory.newThis()).field(shuffleName).toExpression());
}
SimpleName name = entry.getValue();
statements.add(
new ExpressionBuilder(factory, factory.newThis())
.field(name)
.assignFrom(
new TypeBuilder(factory, rendezvousType).newObject(arguments).toExpression())
.toStatement());
}
return factory.newMethodDeclaration(
null,
new AttributeBuilder(factory).annotation(t(Override.class)).Public().toAttributes(),
Collections.<TypeParameterDeclaration>emptyList(),
t(void.class),
factory.newSimpleName("setup"),
Collections.singletonList(
factory.newFormalParameterDeclaration(
factory.newNamedType(factory.newSimpleName("Context")), context)),
0,
Arrays.asList(t(IOException.class), t(InterruptedException.class)),
factory.newBlock(statements));
}
private void compile(Fragment fragment, StageModel stage) throws IOException {
if (fragment.isRendezvous()) {
CompiledType compiled =
new ReduceFragmentEmitter(environment)
.emit(fragment, stage.getShuffleModel(), stage.getStageBlock());
fragment.setCompiled(compiled);
} else {
CompiledType compiled =
new MapFragmentEmitter(environment).emit(fragment, stage.getStageBlock());
fragment.setCompiled(compiled);
}
}
/** グループごとの最小値を求めるテスト。 */
@Test
public void withParameter() {
List<StageModel> stages = compile(GroupSortFlowWithParameter.class);
StageModel stage = stages.get(0);
Assume.assumeThat(stage.getReduceUnits().size(), is(1));
ReduceUnit reduce = stage.getReduceUnits().get(0);
Fragment fragment = reduce.getFragments().get(0);
Name name = fragment.getCompiled().getQualifiedName();
ClassLoader loader = start();
PortMapper mapper = new PortMapper(fragment);
MockResult<Ex1> r1 = mapper.add("r1", new Ex1Copier());
MockResult<Ex1> r2 = mapper.add("r2", new Ex1Copier());
@SuppressWarnings("unchecked")
Rendezvous<Writable> f = (Rendezvous<Writable>) create(loader, name, mapper.toArguments());
Segment segment = stage.getShuffleModel().findSegment(fragment.getInputPorts().get(0));
SegmentedWritable value = createShuffleValue(loader, stage);
Ex1 ex1 = new Ex1();
f.begin();
ex1.setValue(50);
setShuffleValue(segment, value, ex1);
f.process(value);
ex1.setValue(100);
setShuffleValue(segment, value, ex1);
f.process(value);
ex1.setValue(101);
setShuffleValue(segment, value, ex1);
f.process(value);
ex1.setValue(150);
setShuffleValue(segment, value, ex1);
f.process(value);
f.end();
assertThat(r1.getResults().size(), is(2));
assertThat(r2.getResults().size(), is(2));
assertThat(r1.getResults().get(0).getValue(), is(50));
assertThat(r1.getResults().get(1).getValue(), is(100));
assertThat(r2.getResults().get(0).getValue(), is(101));
assertThat(r2.getResults().get(1).getValue(), is(150));
}
/** 単純なテスト。 */
@Test
public void simple() {
List<StageModel> stages = compile(BranchFlowSimple.class);
Fragment fragment = stages.get(0).getMapUnits().get(0).getFragments().get(0);
Name name = fragment.getCompiled().getQualifiedName();
ClassLoader loader = start();
PortMapper mapper = new PortMapper(fragment);
MockResult<Ex1> high = mapper.create("high");
MockResult<Ex1> low = mapper.create("low");
MockResult<Ex1> stop = mapper.create("stop");
@SuppressWarnings("unchecked")
Result<Ex1> f = (Result<Ex1>) create(loader, name, mapper.toArguments());
Ex1 ex1 = new Ex1();
ex1.setValue(-100);
f.add(ex1);
assertThat(high.getResults().size(), is(0));
assertThat(low.getResults().size(), is(0));
assertThat(stop.getResults().size(), is(1));
assertThat(stop.getResults().get(0), is(ex1));
stop.getResults().clear();
ex1.setValue(0);
f.add(ex1);
assertThat(high.getResults().size(), is(0));
assertThat(low.getResults().size(), is(0));
assertThat(stop.getResults().size(), is(1));
assertThat(stop.getResults().get(0), is(ex1));
stop.getResults().clear();
ex1.setValue(1);
f.add(ex1);
assertThat(high.getResults().size(), is(0));
assertThat(low.getResults().size(), is(1));
assertThat(stop.getResults().size(), is(0));
assertThat(low.getResults().get(0), is(ex1));
low.getResults().clear();
ex1.setValue(50);
f.add(ex1);
assertThat(high.getResults().size(), is(0));
assertThat(low.getResults().size(), is(1));
assertThat(stop.getResults().size(), is(0));
assertThat(low.getResults().get(0), is(ex1));
low.getResults().clear();
ex1.setValue(100);
f.add(ex1);
assertThat(high.getResults().size(), is(0));
assertThat(low.getResults().size(), is(1));
assertThat(stop.getResults().size(), is(0));
assertThat(low.getResults().get(0), is(ex1));
low.getResults().clear();
ex1.setValue(101);
f.add(ex1);
assertThat(high.getResults().size(), is(1));
assertThat(low.getResults().size(), is(0));
assertThat(stop.getResults().size(), is(0));
assertThat(high.getResults().get(0), is(ex1));
high.getResults().clear();
ex1.setValue(150);
f.add(ex1);
assertThat(high.getResults().size(), is(1));
assertThat(low.getResults().size(), is(0));
assertThat(stop.getResults().size(), is(0));
assertThat(high.getResults().get(0), is(ex1));
high.getResults().clear();
}