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);
}
/**
* 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);
}
}