Example #1
0
  /**
   * 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;
  }
Example #2
0
  /**
   * 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;
  }