@SuppressWarnings({"unchecked", "rawtypes"})
static Generator<Object> createMultiplicityWrapper(
ComponentDescriptor instance, Generator<?> generator, BeneratorContext context) {
String container = instance.getContainer();
if (container == null) {
Generator<Long> longCountGenerator =
DescriptorUtil.createDynamicCountGenerator(instance, 1L, 1L, true, context);
NonNullGenerator<Integer> countGenerator =
WrapperFactory.asNonNullGenerator(
new AsIntegerGeneratorWrapper<Number>((Generator) longCountGenerator));
return new SimplifyingSingleSourceArrayGenerator(generator, countGenerator);
}
// handle container
Generator<Long> longCountGenerator;
if (instance.getLocalType().getSource() != null)
longCountGenerator =
DescriptorUtil.createDynamicCountGenerator(instance, null, null, true, context);
else
longCountGenerator =
DescriptorUtil.createDynamicCountGenerator(instance, 1L, 1L, true, context);
NonNullGenerator<Integer> countGenerator =
WrapperFactory.asNonNullGenerator(
new AsIntegerGeneratorWrapper<Number>((Generator) longCountGenerator));
if ("array".equals(container))
return new SingleSourceArrayGenerator(
generator, generator.getGeneratedType(), countGenerator);
else if ("list".equals(container))
return new SingleSourceCollectionGenerator(generator, ArrayList.class, countGenerator);
else if ("set".equals(container))
return new SingleSourceCollectionGenerator(generator, HashSet.class, countGenerator);
else if ("map".equals(container)) return (Generator<Object>) generator;
else throw new SyntaxError("Not a supported container", container);
}
protected static ComponentBuilder<?> createScriptBuilder(
ComponentDescriptor component, BeneratorContext context) {
TypeDescriptor type = component.getTypeDescriptor();
if (type == null) return null;
String scriptText = type.getScript();
if (scriptText == null) return null;
Script script = ScriptUtil.parseScriptText(scriptText);
Generator<?> generator = new ScriptGenerator(script);
generator =
DescriptorUtil.createConvertingGenerator(component.getTypeDescriptor(), generator, context);
return builderFromGenerator(generator, component, context);
}
private static ComponentBuilder<?> builderFromGenerator(
Generator<?> source, ComponentDescriptor descriptor, BeneratorContext context) {
boolean nullability = DescriptorUtil.isNullable(descriptor, context);
Double nullQuota = descriptor.getNullQuota();
if (nullQuota != null && nullQuota != 0)
source = context.getGeneratorFactory().applyNullSettings(source, nullability, nullQuota);
TypeDescriptor typeDescriptor = descriptor.getTypeDescriptor();
String scope = (typeDescriptor != null ? typeDescriptor.getScope() : null);
if (descriptor instanceof ArrayElementDescriptor) {
int index = ((ArrayElementDescriptor) descriptor).getIndex();
return new ArrayElementBuilder(index, source, scope);
} else return new PlainEntityComponentBuilder(descriptor.getName(), source, scope);
}
@SuppressWarnings({"unchecked", "rawtypes"})
static ComponentBuilder<?> createReferenceBuilder(
ReferenceDescriptor descriptor, BeneratorContext context) {
SimpleTypeDescriptor typeDescriptor = (SimpleTypeDescriptor) descriptor.getTypeDescriptor();
// check uniqueness
boolean unique = DescriptorUtil.isUnique(descriptor, context);
Uniqueness uniqueness = (unique ? Uniqueness.SIMPLE : Uniqueness.NONE);
// do I only need to generate nulls?
if (DescriptorUtil.isNullable(descriptor, context)
&& DescriptorUtil.shouldNullifyEachNullable(descriptor, context))
return builderFromGenerator(createNullGenerator(descriptor, context), descriptor, context);
// TODO use SimpleTypeGeneratorFactory?
Generator<?> generator = null;
generator = DescriptorUtil.getGeneratorByName(typeDescriptor, context);
if (generator == null)
generator = SimpleTypeGeneratorFactory.createScriptGenerator(typeDescriptor);
if (generator == null)
generator = SimpleTypeGeneratorFactory.createConstantGenerator(typeDescriptor, context);
if (generator == null)
generator =
SimpleTypeGeneratorFactory.createValuesGenerator(typeDescriptor, uniqueness, context);
// get distribution
Distribution distribution =
FactoryUtil.getDistribution(
typeDescriptor.getDistribution(), descriptor.getUniqueness(), false, context);
// check source
if (generator == null) {
// check target type
String targetTypeName = descriptor.getTargetType();
ComplexTypeDescriptor targetType =
(ComplexTypeDescriptor) context.getDataModel().getTypeDescriptor(targetTypeName);
if (targetType == null) throw new ConfigurationError("Type not defined: " + targetTypeName);
// check targetComponent
String targetComponent = descriptor.getTargetComponent();
// check source
String sourceName = typeDescriptor.getSource();
if (sourceName == null) throw new ConfigurationError("'source' is not set for " + descriptor);
Object sourceObject = context.get(sourceName);
if (sourceObject instanceof StorageSystem) {
StorageSystem sourceSystem = (StorageSystem) sourceObject;
String selector = typeDescriptor.getSelector();
String subSelector = typeDescriptor.getSubSelector();
boolean subSelect = !StringUtil.isEmpty(subSelector);
String selectorToUse = (subSelect ? subSelector : selector);
if (isIndividualSelector(selectorToUse)) {
generator = new DataSourceGenerator(sourceSystem.query(selectorToUse, true, context));
} else {
generator =
new DataSourceGenerator(
sourceSystem.queryEntityIds(
targetTypeName,
selectorToUse,
context)); // TODO v0.7.2 query by targetComponent
if (selectorToUse == null && distribution == null)
if (context.isDefaultOneToOne()) distribution = new ExpandSequence();
else distribution = SequenceManager.RANDOM_SEQUENCE;
}
if (subSelect) generator = WrapperFactory.applyHeadCycler(generator);
} else throw new ConfigurationError("Not a supported source type: " + sourceName);
}
// apply distribution if necessary
if (distribution != null)
generator = new DistributingGenerator(generator, distribution, unique);
// check multiplicity
generator = ComponentBuilderFactory.createMultiplicityWrapper(descriptor, generator, context);
if (LOGGER.isDebugEnabled()) LOGGER.debug("Created " + generator);
// check 'cyclic' config
generator = DescriptorUtil.wrapWithProxy(generator, typeDescriptor);
return builderFromGenerator(generator, descriptor, context);
}