/**
* Tries to find a reference for an injected {@link AutoBound} data binder.
*
* @return the data binder reference or null if not found.
*/
private static DataBinderRef lookupAutoBoundBinder(final InjectableInstance<?> inst) {
Statement dataBinderRef = null;
MetaClass dataModelType = null;
InjectUtil.BeanMetric beanMetric =
InjectUtil.getFilteredBeanMetric(
inst.getInjectionContext(), inst.getInjector().getInjectedType(), AutoBound.class);
final Collection<Object> allInjectors = beanMetric.getAllInjectors();
if (allInjectors.size() > 1) {
throw new GenerationException(
"Multiple @AutoBound data binders injected in " + inst.getEnclosingType());
} else if (allInjectors.size() == 1) {
final Object injectorElement = allInjectors.iterator().next();
if (injectorElement instanceof MetaConstructor || injectorElement instanceof MetaMethod) {
final MetaParameter mp = beanMetric.getConsolidatedMetaParameters().iterator().next();
assertTypeIsDataBinder(mp.getType());
dataModelType = (MetaClass) mp.getType().getParameterizedType().getTypeParameters()[0];
dataBinderRef = inst.getInjectionContext().getInlineBeanReference(mp);
inst.ensureMemberExposed();
} else {
final MetaField field = (MetaField) allInjectors.iterator().next();
assertTypeIsDataBinder(field.getType());
dataModelType = (MetaClass) field.getType().getParameterizedType().getTypeParameters()[0];
dataBinderRef =
Stmt.invokeStatic(
inst.getInjectionContext().getProcessingContext().getBootstrapClass(),
PrivateAccessUtil.getPrivateFieldInjectorName(field),
Variable.get(inst.getInjector().getInstanceVarName()));
inst.getInjectionContext().addExposedField(field, PrivateAccessType.Both);
}
} else {
final MetaClass declaringClass = inst.getInjector().getInjectedType();
for (final MetaField field : declaringClass.getFields()) {
if (field.isAnnotationPresent(AutoBound.class)) {
assertTypeIsDataBinder(field.getType());
dataModelType = (MetaClass) field.getType().getParameterizedType().getTypeParameters()[0];
dataBinderRef =
Stmt.invokeStatic(
inst.getInjectionContext().getProcessingContext().getBootstrapClass(),
PrivateAccessUtil.getPrivateFieldInjectorName(field),
Variable.get(inst.getInjector().getInstanceVarName()));
inst.getInjectionContext().addExposedField(field, PrivateAccessType.Both);
break;
}
}
}
return (dataBinderRef != null) ? new DataBinderRef(dataModelType, dataBinderRef) : null;
}
/**
* Tries to find a data binder reference for an injected {@link Model}.
*
* @param inst the injectable instance
* @return the data binder reference or null if not found.
*/
private static DataBinderRef lookupBinderForModel(final InjectableInstance<?> inst) {
Statement dataBinderRef;
MetaClass dataModelType;
InjectUtil.BeanMetric beanMetric =
InjectUtil.getFilteredBeanMetric(
inst.getInjectionContext(), inst.getInjector().getInjectedType(), Model.class);
if (!beanMetric.getAllInjectors().isEmpty()) {
final Collection<Object> allInjectors = beanMetric.getAllInjectors();
if (allInjectors.size() > 1) {
throw new GenerationException("Multiple @Models injected in " + inst.getEnclosingType());
} else if (allInjectors.size() == 1) {
final Object injectorElement = allInjectors.iterator().next();
if (injectorElement instanceof MetaConstructor || injectorElement instanceof MetaMethod) {
final MetaParameter mp = beanMetric.getConsolidatedMetaParameters().iterator().next();
dataModelType = mp.getType();
assertTypeIsBindable(dataModelType);
dataBinderRef = inst.getTransientValue(TRANSIENT_BINDER_VALUE, DataBinder.class);
inst.ensureMemberExposed();
} else {
final MetaField field = (MetaField) allInjectors.iterator().next();
dataModelType = field.getType();
assertTypeIsBindable(dataModelType);
dataBinderRef = inst.getTransientValue(TRANSIENT_BINDER_VALUE, DataBinder.class);
inst.getInjectionContext().addExposedField(field, PrivateAccessType.Both);
}
return new DataBinderRef(dataModelType, dataBinderRef);
}
} else {
List<MetaField> modelFields =
inst.getInjector().getInjectedType().getFieldsAnnotatedWith(Model.class);
if (!modelFields.isEmpty()) {
throw new GenerationException(
"Found one or more fields annotated with @Model but missing @Inject "
+ modelFields.toString());
}
List<MetaParameter> modelParameters =
inst.getInjector().getInjectedType().getParametersAnnotatedWith(Model.class);
if (!modelParameters.isEmpty()) {
throw new GenerationException(
"Found one or more constructor or method parameters annotated with @Model but missing @Inject "
+ modelParameters.toString());
}
}
return null;
}
