private MethodDeclaration createGetter(Segment segment) {
assert segment != null;
String methodName = Naming.getShuffleValueGetter(segment.getPortId());
List<Statement> statements = new ArrayList<Statement>();
statements.add(
factory.newIfStatement(
new ExpressionBuilder(factory, factory.newThis())
.field(SEGMENT_ID_FIELD_NAME)
.apply(InfixOperator.NOT_EQUALS, v(segment.getPortId()))
.toExpression(),
new TypeBuilder(factory, t(AssertionError.class)).newObject().toThrowStatement(),
null));
statements.add(
new ExpressionBuilder(factory, factory.newThis())
.field(createPropertyName(segment))
.toReturnStatement());
return factory.newMethodDeclaration(
new JavadocBuilder(factory)
.text(
"{0}#{1}のモデルオブジェクトを返す。",
segment.getPort().getOwner().getDescription().getName(),
segment.getPort().getDescription().getName())
.toJavadoc(),
new AttributeBuilder(factory).Public().toAttributes(),
t(segment.getTarget().getType()),
factory.newSimpleName(methodName),
Collections.<FormalParameterDeclaration>emptyList(),
statements);
}
private TypeDeclaration createType() {
SimpleName name = factory.newSimpleName(Naming.getCombineClass());
importer.resolvePackageMember(name);
List<TypeBodyDeclaration> members = Lists.create();
members.addAll(prepareFields());
members.add(createSetup());
members.add(createCleanup());
members.add(createGetRendezvous());
return factory.newClassDeclaration(
new JavadocBuilder(factory)
.text("ステージ{0}の処理を担当するコンバイナープログラム。", shuffle.getStageBlock().getStageNumber())
.toJavadoc(),
new AttributeBuilder(factory)
.annotation(t(SuppressWarnings.class), v("deprecation"))
.Public()
.Final()
.toAttributes(),
name,
Collections.<TypeParameterDeclaration>emptyList(),
importer.resolve(
factory.newParameterizedType(
Models.toType(factory, SegmentedCombiner.class),
Arrays.asList(
importer.toType(shuffle.getCompiled().getKeyTypeName()),
importer.toType(shuffle.getCompiled().getValueTypeName())))),
Collections.<Type>emptyList(),
members);
}
/**
* 指定のシャッフル値から特定セグメントの値を設定する。
*
* @param segment 対象のセグメント
* @param value 対象のシャッフル値
* @return セグメントの値
*/
protected Object getShuffleValue(Segment segment, SegmentedWritable value) {
String name = Naming.getShuffleValueGetter(segment.getPortId());
try {
Method method = value.getClass().getMethod(name);
return method.invoke(value);
} catch (Exception e) {
throw new AssertionError(e);
}
}
/**
* 指定のシャッフルキーに値を設定する。
*
* @param segment 対象のセグメント
* @param key キー
* @param toSet 設定する値
*/
protected void setShuffleKey(Segment segment, SegmentedWritable key, Object toSet) {
String name = Naming.getShuffleKeySetter(segment.getPortId());
try {
Method method = key.getClass().getMethod(name, toSet.getClass());
method.invoke(key, toSet);
} catch (Exception e) {
throw new AssertionError(e);
}
}
private TypeDeclaration createType() {
SimpleName name = factory.newSimpleName(Naming.getReduceClass());
importer.resolvePackageMember(name);
return factory.newClassDeclaration(
new JavadocBuilder(factory).text("エピローグ用のレデューサー。").toJavadoc(),
new AttributeBuilder(factory).Public().toAttributes(),
name,
Collections.<TypeParameterDeclaration>emptyList(),
importer.toType(SlotSorter.class),
Collections.<Type>emptyList(),
Arrays.asList(createSlotNames(), createSlotObjects()));
}
private TypeDeclaration createType() {
SimpleName name = factory.newSimpleName(Naming.getShuffleValueClass());
importer.resolvePackageMember(name);
List<TypeBodyDeclaration> members = new ArrayList<TypeBodyDeclaration>();
members.addAll(createSegmentDistinction());
members.addAll(createProperties());
members.addAll(createAccessors());
members.addAll(createWritables());
return factory.newClassDeclaration(
createJavadoc(),
new AttributeBuilder(factory)
.annotation(t(SuppressWarnings.class), v("deprecation"))
.Public()
.Final()
.toAttributes(),
name,
Collections.<TypeParameterDeclaration>emptyList(),
null,
Collections.singletonList(t(SegmentedWritable.class)),
members);
}
private TypeDeclaration createType() {
SimpleName name = factory.newSimpleName(Naming.getShuffleGroupingComparatorClass());
importer.resolvePackageMember(name);
List<TypeBodyDeclaration> members = new ArrayList<TypeBodyDeclaration>();
members.add(createCompareBytes());
members.add(createCompareObjects());
members.add(ShuffleEmiterUtil.createCompareInts(factory));
members.add(ShuffleEmiterUtil.createPortToElement(factory, model));
return factory.newClassDeclaration(
createJavadoc(),
new AttributeBuilder(factory)
.annotation(t(SuppressWarnings.class), v("rawtypes"))
.Public()
.toAttributes(),
name,
Collections.<TypeParameterDeclaration>emptyList(),
null,
Collections.singletonList(
importer.resolve(
factory.newParameterizedType(
t(RawComparator.class), Collections.singletonList(keyType)))),
members);
}
private MethodDeclaration createSetter(Segment segment) {
assert segment != null;
String methodName = Naming.getShuffleValueSetter(segment.getPortId());
DataClass type = segment.getTarget();
SimpleName argument = factory.newSimpleName("model"); // $NON-NLS-1$
List<Statement> statements = Lists.create();
statements.add(
new ExpressionBuilder(factory, factory.newThis())
.field(factory.newSimpleName(SEGMENT_ID_FIELD_NAME))
.assignFrom(v(segment.getPortId()))
.toStatement());
statements.add(
type.assign(
new ExpressionBuilder(factory, factory.newThis())
.field(createPropertyName(segment))
.toExpression(),
argument));
return factory.newMethodDeclaration(
new JavadocBuilder(factory)
.text(
"Sets a data model object for " //$NON-NLS-1$
+ "the successing operator input <code>{0}#{1}</code>.", //$NON-NLS-1$
segment.getPort().getOwner().getDescription().getName(),
segment.getPort().getDescription().getName())
.param(argument)
.text("the target data model object") // $NON-NLS-1$
.toJavadoc(),
new AttributeBuilder(factory).Public().toAttributes(),
t(void.class),
factory.newSimpleName(methodName),
Collections.singletonList(
factory.newFormalParameterDeclaration(t(type.getType()), argument)),
statements);
}
private MethodDeclaration createSetter(Segment segment) {
assert segment != null;
String methodName = Naming.getShuffleValueSetter(segment.getPortId());
DataClass type = segment.getTarget();
SimpleName argument = factory.newSimpleName("model");
List<Statement> statements = new ArrayList<Statement>();
statements.add(
new ExpressionBuilder(factory, factory.newThis())
.field(factory.newSimpleName(SEGMENT_ID_FIELD_NAME))
.assignFrom(v(segment.getPortId()))
.toStatement());
statements.add(
type.assign(
new ExpressionBuilder(factory, factory.newThis())
.field(createPropertyName(segment))
.toExpression(),
argument));
return factory.newMethodDeclaration(
new JavadocBuilder(factory)
.text(
"{0}#{1}で使用するモデルオブジェクトを設定する。",
segment.getPort().getOwner().getDescription().getName(),
segment.getPort().getDescription().getName())
.param(argument)
.text("設定するモデルオブジェクト")
.toJavadoc(),
new AttributeBuilder(factory).Public().toAttributes(),
t(void.class),
factory.newSimpleName(methodName),
Collections.singletonList(
factory.newFormalParameterDeclaration(t(type.getType()), argument)),
statements);
}