public Object instance(Object[] parameters, Object[] localProducts) {
if (this.collectionKind == CollectionKind.ARRAY) {
Object array =
Array.newInstance(
this.collectionArgumentType.getComponentType(),
this.collectionContentFactories.size());
for (int i = 0; i < this.collectionContentFactories.size(); i++) {
Array.set(
array, i, this.collectionContentFactories.get(i).instance(parameters, localProducts));
}
return array;
} else if (this.collectionKind == CollectionKind.LIST) {
List<Object> list = new ArrayList<Object>();
for (LocalFactory contentFactory : this.collectionContentFactories) {
list.add(contentFactory.instance(parameters, localProducts));
}
return list;
} else if (this.collectionKind == CollectionKind.SET) {
Set<Object> set = new HashSet<Object>();
for (LocalFactory contentFactory : this.collectionContentFactories) {
set.add(contentFactory.instance(parameters, localProducts));
}
return set;
}
return null;
}
protected GlobalFactory<?> buildGlobalFactory(Container container, FactoryDefinition definition) {
GlobalFactoryBase globalFactory = null;
LocalFactory instantiationFactory = buildLocalFactoryRecursively(container, definition);
definition.setLocalProductType(definition.getName(), instantiationFactory.getReturnType());
if (definition.isNewInstance() || definition.isLocalizedMap()) {
globalFactory = new GlobalNewInstanceFactory();
} else if (definition.isSingleton()) {
globalFactory = new GlobalSingletonFactory();
} else if (definition.isThreadSingleton()) {
globalFactory = new GlobalThreadSingletonFactory();
} else if (definition.isFlyweight()) {
globalFactory = new GlobalFlyweightFactory();
}
int namedLocalProductCount = definition.getNamedLocalProductCount();
globalFactory.setLocalProductCount(namedLocalProductCount);
/*
* todo optimize this... so far all global factories have at least 1
* named local product (the returned product)... but far from all global
* factories actually reference it from life cycle phases.
*/
if (definition.getNamedLocalProductCount() > 0) {
instantiationFactory = new LocalProductProducerFactory(instantiationFactory, 0);
}
globalFactory.setLocalInstantiationFactory(instantiationFactory);
if (definition.getPhaseFactories() != null && definition.getPhaseFactories().size() > 0) {
for (String phase : definition.getPhaseFactories().keySet()) {
List<FactoryDefinition> phaseFactories = definition.getPhaseFactories().get(phase);
globalFactory.setPhase(phase, buildLocalFactories(container, phaseFactories));
}
}
return globalFactory;
}
protected LocalFactory buildLocalFactoryRecursively(
Container container, FactoryDefinition definition) {
LocalFactory factory = null;
try {
List<LocalFactory> argumentFactories =
buildLocalFactories(container, definition.getInstantiationArgFactories());
// todo get this from castings in factory definition. Casting will
// force a specific return type.
Class<?>[] forcedArgumentTypes = getForcedArgumentTypes(argumentFactories, definition);
if (definition.isConstructorFactory()) { // constructor factory
factory =
builder.createConstructorFactory(
definition.getIdentifierOwnerClass(), argumentFactories, forcedArgumentTypes);
} else if (definition.isStaticMethodFactory()) {
// method invocation factory
factory =
builder.createStaticMethodFactory(
definition.getIdentifier(),
definition.getIdentifierOwnerClass(),
argumentFactories,
forcedArgumentTypes);
} else if (definition.isInstanceMethodFactory()) {
LocalFactory methodInvocationTargetFactory =
buildLocalFactoryRecursively(container, definition.getIdentifierTargetFactory());
factory =
builder.createInstanceMethodFactory(
definition.getIdentifier(),
methodInvocationTargetFactory,
argumentFactories,
forcedArgumentTypes);
} else if (definition.isInstanceFieldFactory()) {
LocalFactory fieldTargetFactory =
buildLocalFactoryRecursively(container, definition.getIdentifierTargetFactory());
factory = builder.createFieldFactory(definition.getIdentifier(), fieldTargetFactory);
} else if (definition.isStaticFieldFactory()) {
factory =
builder.createFieldFactory(
definition.getIdentifier(), definition.getIdentifierOwnerClass());
} else if (definition.isInstanceFieldAssignmentFactory()) {
LocalFactory assignmentTargetFactory =
buildLocalFactoryRecursively(container, definition.getIdentifierTargetFactory());
factory =
builder.createFieldAssignmentFactory(
definition.getIdentifier(), assignmentTargetFactory, argumentFactories.get(0));
} else if (definition.isStaticFieldAssignmentFactory()) {
factory =
builder.createFieldAssignmentFactory(
definition.getIdentifier(),
definition.getIdentifierOwnerClass(),
argumentFactories.get(0));
} else if (definition.isFactoryCallFactory()) { // existing factory
// reference
if (container.getFactory(definition.getIdentifier()) == null)
throw new ParserException(
"ScriptFactoryBuilder",
"UNKNOWN_FACTORY",
"Error in factory definition ["
+ definition.getRoot().getName()
+ "]: Unknown Factory: "
+ definition.getIdentifier());
factory =
new InputAdaptingFactory(
container.getFactory(definition.getIdentifier()), argumentFactories);
} else if (definition.isFactoryFactory()) {
factory = new FactoryFactory(container, definition.getIdentifier());
} else if (definition.isCollectionFactory()) {
factory = new CollectionFactory(argumentFactories);
} else if (definition.isMapFactory()) {
List<LocalFactory> keyFactories =
buildLocalFactories(container, definition.getInstantiationArgKeyFactories());
factory = new MapFactory(keyFactories, argumentFactories);
if (definition.isLocalizedMap()) {
((MapFactory) factory).setFactoryMap(true);
GlobalFactory<?> localeFactory = container.getFactory("locale");
if (localeFactory == null) {
new ParserException(
"ScriptFactoryBuilder",
"NO_LOCALE_FACTORY_FOUND",
"Error in factory definition "
+ definition.getRoot().getName()
+ ": No 'locale' factory found. "
+ "A 'locale' factory must be present in order to use localized resource factories");
}
factory = new LocalizedResourceFactory(factory, localeFactory);
}
} else if (definition.isValueFactory()) { // value factory
if (isString(definition.getIdentifier()))
factory =
new ValueFactory(
definition.getIdentifier().substring(1, definition.getIdentifier().length() - 1));
else if ("null".equals(definition.getIdentifier())) {
factory = new ValueFactory(null);
} else factory = new ValueFactory(definition.getIdentifier());
} else if (definition.isInputParameterFactory()) { // input
// consuming
// factory
factory = new InputConsumerFactory(Integer.parseInt(definition.getIdentifier()));
} else if (definition.isLocalProductFactory()) {
factory =
new LocalProductConsumerFactory(
definition.getLocalProductType(), definition.getLocalProductIndex());
}
// only local factories with a name (named local factories) can be
// something else than "new instance"
// factories.
if (definition.isNamedLocalFactory()) {
if (definition.isSingleton()) {
factory = new LocalSingletonFactory(factory);
} else if (definition.isThreadSingleton()) {
factory = new LocalThreadSingletonFactory(factory);
} else if (definition.isFlyweight()) {
factory = new LocalFlyweightFactory(factory);
}
factory = new LocalProductProducerFactory(factory, definition.getLocalProductIndex());
definition.setLocalProductType(definition.getName(), factory.getReturnType());
}
return factory;
} catch (ContainerException e) {
if (e.getCode().indexOf("ScriptFactoryBuilder") == -1) {
e.addInfo(
"ScriptFactoryBuilder",
"ERROR_CREATING_FACTORY",
"Error in factory definition " + definition.getRoot().getName());
}
throw e;
}
}