Package org.jboss.errai.codegen.framework.meta

Examples of org.jboss.errai.codegen.framework.meta.MetaClass

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        sb.append(",");
        hasEncoded = true;
      }

      MetaField metaField = MetaClassFactory.get(field);
      MetaClass targetType = GenUtil.getPrimitiveWrapper(metaField.getType());

      if (!context.hasProvidedOrGeneratedMarshaller(targetType.getFullyQualifiedName())) {
        throw new NoAvailableMarshallerException(targetType.getFullyQualifiedName());
      }

      sb.append("\"" + field.getName() + "\" : ");
      sb.append(Stmt.loadVariable(MarshallingUtil.getVarName(targetType.getFullyQualifiedName()))
              .invoke("marshall", valueAccessorFor(MetaClassFactory.get(field)), Stmt.loadVariable("a1")));
    }

    sb.append("}");
    builder.append(Stmt.nestedCall(sb).invoke("toString"));
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          = {Inject.class, com.google.inject.Inject.class};

  private static final AtomicInteger counter = new AtomicInteger(0);

  public static ConstructionStrategy getConstructionStrategy(final Injector injector, final InjectionContext ctx) {
    final MetaClass type = injector.getInjectedType();

    final List<MetaConstructor> constructorInjectionPoints = scanForConstructorInjectionPoints(type);
    final List<InjectionTask> injectionTasks = scanForTasks(injector, ctx, type);
    final List<MetaMethod> postConstructTasks = scanForPostConstruct(type);

    if (!constructorInjectionPoints.isEmpty()) {
      if (constructorInjectionPoints.size() > 1) {
        throw new InjectionFailure("more than one constructor in "
                + type.getFullyQualifiedName() + " is marked as the injection point!");
      }

      final MetaConstructor constructor = constructorInjectionPoints.get(0);

      for (Class<? extends Annotation> a : ctx.getDecoratorAnnotationsBy(ElementType.TYPE)) {
        if (type.isAnnotationPresent(a)) {
          DecoratorTask task = new DecoratorTask(injector, type, ctx.getDecorator(a));
          injectionTasks.add(task);
        }
      }

      return new ConstructionStrategy() {
        @Override
        public void generateConstructor() {
          Statement[] parameterStatements = resolveInjectionDependencies(constructor.getParameters(), ctx, constructor);

          IOCProcessingContext processingContext = ctx.getProcessingContext();

          processingContext.append(
                  Stmt.declareVariable(type)
                          .asFinal()
                          .named(injector.getVarName())
                          .initializeWith(Stmt
                                  .newObject(type)
                                  .withParameters(parameterStatements))
          );

          handleInjectionTasks(ctx, injectionTasks);

          doPostConstruct(ctx, injector, postConstructTasks);
        }
      };
    }
    else {
      // field injection
      if (!hasDefaultConstructor(type))
        throw new InjectionFailure("there is no default constructor for type: " + type.getFullyQualifiedName());

      return new ConstructionStrategy() {
        @Override
        public void generateConstructor() {
          IOCProcessingContext processingContext = ctx.getProcessingContext();
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    if (metadata == null) {
      metadata = processingContext.getQualifyingMetadataFactory().createDefaultMetadata();
    }

    //todo: figure out why I was doing this.
    MetaClass erased = type.getErased();
    List<Injector> injs = injectors.get(erased);
    List<Injector> matching = new ArrayList<Injector>();

    if (injs != null) {
      for (Injector inj : injs) {
        if (inj.matches(type.getParameterizedType(), metadata)) {
          matching.add(inj);
        }
      }
    }

    if (matching.isEmpty()) {
      throw new InjectionFailure(erased);
    }
    else if (matching.size() > 1) {
      throw new InjectionFailure("ambiguous injection type (multiple injectors resolved): " + erased
              .getFullyQualifiedName() + (metadata == null ? "" : metadata.toString()));
    }
    else {
      return matching.get(0);
    }
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  public Injector getInjector(Class<?> injectorType) {
    return getInjector(MetaClassFactory.get(injectorType));
  }

  public Injector getInjector(MetaClass type) {
    MetaClass erased = type.getErased();
    if (!injectors.containsKey(erased)) {
      throw new InjectionFailure("could not resolve type for injection: " + erased.getFullyQualifiedName());
    }
    List<Injector> injectorList = new ArrayList<Injector>(injectors.get(erased));

    Iterator<Injector> iter = injectorList.iterator();
    Injector inj;

    if (injectorList.size() > 1) {
      while (iter.hasNext()) {
        inj = iter.next();

        if (type.getParameterizedType() != null) {
          if (inj.getQualifyingTypeInformation() != null) {
            if (!type.getParameterizedType().isAssignableFrom(inj.getQualifyingTypeInformation())) {
              iter.remove();
            }
          }
        }
        else if (inj.getQualifyingTypeInformation() == null) {
          iter.remove();
        }
      }
    }

    if (injectorList.size() > 1) {
      throw new InjectionFailure("ambiguous injection type (multiple injectors resolved): "
              + erased.getFullyQualifiedName());
    }
    else if (injectorList.isEmpty()) {
      throw new InjectionFailure("could not resolve type for injection: " + erased.getFullyQualifiedName());
    }

    return injectorList.get(0);
  }
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    /**
     * Ensure the the container generates a stub to internally expose the field if it's private.
     */
    decContext.ensureMemberExposed();

    /**
     * Get an instance of the message bus.
     */
    final MetaClass busClass = MetaClassFactory.get(decContext.getInjectionContext()
            .getProcessingContext().loadClassType(MessageBus.class));

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              final Annotation aInstance = clazz.getAnnotation(aClass);

              entry.addProcessingDelegate(new ProcessingDelegate<MetaClass>() {
                @Override
                public boolean process() {
                  final MetaClass type = MetaClassFactory.get(clazz);
                  injectorFactory.addType(type);

                  Injector injector = injectorFactory.getInjectionContext().getInjector(type);
                  final InjectableInstance injectableInstance
                          = getTypeInjectedInstance(aInstance, type, injector, injectorFactory.getInjectionContext());
                  return entry.handler.handle(injectableInstance, aInstance, context);
                }

                public String toString() {
                  return clazz.getName();
                }
              });
            }
          }
          break;

          case METHOD: {
            Set<Method> methods = scanner.getMethodsAnnotatedWith(aClass, context.getPackageFilter());

            for (Method method : methods) {
              final Annotation aInstance = method.getAnnotation(aClass);

              final MetaClass type = MetaClassFactory.get(method.getDeclaringClass());
              final MetaMethod metaMethod = MetaClassFactory.get(method);

              entry.addProcessingDelegate(new ProcessingDelegate<MetaField>() {
                @Override
                public boolean process() {
                  injectorFactory.addType(type);
                  Injector injector = injectorFactory.getInjectionContext().getInjector(type);
                  final InjectableInstance injectableInstance
                          = getMethodInjectedInstance(aInstance, metaMethod, injector,
                          injectorFactory.getInjectionContext());
                  return entry.handler.handle(injectableInstance, aInstance, context);
                }

                public String toString() {
                  return type.getFullyQualifiedName();
                }
              });

            }
          }

          case FIELD: {
            Set<Field> fields = scanner.getFieldsAnnotatedWith(aClass, context.getPackageFilter());

            for (Field method : fields) {
              final Annotation aInstance = method.getAnnotation(aClass);

              final MetaClass type = MetaClassFactory.get(method.getDeclaringClass());
              final MetaField metaField = MetaClassFactory.get(method);

              entry.addProcessingDelegate(new ProcessingDelegate<MetaField>() {
                @Override
                public boolean process() {
                  injectorFactory.addType(type);
                  Injector injector = injectorFactory.getInjectionContext().getInjector(type);
                  final InjectableInstance injectableInstance
                          = InjectableInstance.getFieldInjectedInstance(aInstance, metaField, injector,
                          injectorFactory.getInjectionContext());
                  return entry.handler.handle(injectableInstance, aInstance, context);
                }

                public String toString() {
                  return type.getFullyQualifiedName();
                }
              });
            }
          }
        }
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                    || annoClass.isAnnotationPresent(NormalScope.class)) {
              continue TypeScan;
            }
          }
         
          MetaClass metaClass = GWTClass.newInstance(type);

          if (injectorFactory.hasType(metaClass)) {
            continue;
          }
         
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  private static Logger log = LoggerFactory.getLogger("errai-ioc");


  public static ConstructionStrategy getConstructionStrategy(final Injector injector, final InjectionContext ctx) {
    final MetaClass type = injector.getInjectedType();

    final List<MetaConstructor> constructorInjectionPoints = scanForConstructorInjectionPoints(type);
    final List<InjectionTask> injectionTasks = scanForTasks(injector, ctx, type);
    final List<MetaMethod> postConstructTasks = scanForPostConstruct(type);

    for (Class<? extends Annotation> a : ctx.getDecoratorAnnotationsBy(ElementType.TYPE)) {
      if (type.isAnnotationPresent(a)) {
        DecoratorTask task = new DecoratorTask(injector, type, ctx.getDecorator(a));
        injectionTasks.add(task);
      }
    }

    if (!constructorInjectionPoints.isEmpty()) {
      if (constructorInjectionPoints.size() > 1) {
        throw new InjectionFailure("more than one constructor in "
                + type.getFullyQualifiedName() + " is marked as the injection point!");
      }

      final MetaConstructor constructor = constructorInjectionPoints.get(0);

      return new ConstructionStrategy() {
        @Override
        public void generateConstructor(ConstructionStatusCallback callback) {
          Statement[] parameterStatements = resolveInjectionDependencies(constructor.getParameters(), ctx, constructor);
          if (injector.isSingleton() && injector.isInjected()) return;

          IOCProcessingContext processingContext = ctx.getProcessingContext();

          processingContext.append(
                  Stmt.declareVariable(type)
                          .asFinal()
                          .named(injector.getVarName())
                          .initializeWith(Stmt
                                  .newObject(type)
                                  .withParameters(parameterStatements))
          );
          callback.callback(true);

          handleInjectionTasks(ctx, injectionTasks);

          doPostConstruct(ctx, injector, postConstructTasks);
        }

      };
    }
    else {
      // field injection
      if (!hasDefaultConstructor(type))
        throw new InjectionFailure("there is no public default constructor or suitable injection constructor for type: "
                + type.getFullyQualifiedName());

      return new ConstructionStrategy() {
        @Override
        public void generateConstructor(ConstructionStatusCallback callback) {
          if (injector.isSingleton() && injector.isInjected()) return;
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      if (type.isAnnotationPresent(decorator)) {
        accumulator.add(new InjectionTask(injector, type));
      }
    }

    MetaClass visit = type;

    do {
      for (MetaField field : visit.getDeclaredFields()) {
        if (isInjectionPoint(field)) {
          if (!field.isPublic()) {
            MetaMethod meth = visit.getMethod(ReflectionUtil.getSetter(field.getName()),
                    field.getType());

            if (meth == null) {
              InjectionTask task = new InjectionTask(injector, field);
              accumulator.add(task);
            }
            else {
              InjectionTask task = new InjectionTask(injector, meth);
              task.setField(field);
              accumulator.add(task);
            }

          }
          else {
            accumulator.add(new InjectionTask(injector, field));
          }
        }

        ElementType[] elTypes;
        for (Class<? extends Annotation> a : decorators) {
          elTypes = a.isAnnotationPresent(Target.class) ? a.getAnnotation(Target.class).value()
                  : new ElementType[]{ElementType.FIELD};

          for (ElementType elType : elTypes) {
            switch (elType) {
              case FIELD:
                if (field.isAnnotationPresent(a)) {
                  accumulator.add(new DecoratorTask(injector, field, ctx.getDecorator(a)));
                }
                break;
            }
          }
        }
      }

      for (MetaMethod meth : visit.getDeclaredMethods()) {
        if (isInjectionPoint(meth)) {
          accumulator.add(new InjectionTask(injector, meth));
        }

        ElementType[] elTypes;
        for (Class<? extends Annotation> a : decorators) {
          elTypes = a.isAnnotationPresent(Target.class) ? a.getAnnotation(Target.class).value()
                  : new ElementType[]{ElementType.FIELD};

          for (ElementType elType : elTypes) {
            switch (elType) {
              case METHOD:
                if (meth.isAnnotationPresent(a)) {
                  accumulator.add(new DecoratorTask(injector, meth, ctx.getDecorator(a)));
                }
                break;
              case PARAMETER:
                for (MetaParameter parameter : meth.getParameters()) {
                  if (parameter.isAnnotationPresent(a)) {
                    DecoratorTask task = new DecoratorTask(injector, parameter, ctx.getDecorator(a));
                    task.setMethod(meth);
                    accumulator.add(task);
                  }
                }
            }
          }
        }
      }
    }
    while ((visit = visit.getSuperClass()) != null);

    return accumulator;
  }
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    if (metadata == null) {
      metadata = processingContext.getQualifyingMetadataFactory().createDefaultMetadata();
    }

    //todo: figure out why I was doing this.
    MetaClass erased = type.getErased();
    List<Injector> injs = injectors.get(erased);
    List<Injector> matching = new ArrayList<Injector>();

    if (injs != null) {
      for (Injector inj : injs) {
        if (inj.matches(type.getParameterizedType(), metadata)) {
          matching.add(inj);
        }
      }
    }

    if (matching.isEmpty()) {
      throw new InjectionFailure(erased);
    }
    else if (matching.size() > 1) {
      throw new InjectionFailure("ambiguous injection type (multiple injectors resolved): " + erased
              .getFullyQualifiedName() + (metadata == null ? "" : metadata.toString()));
    }
    else {
      return matching.get(0);
    }
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