Examples with ConfigurationException com.google.inject.ConfigurationException used on opensource projects

Example 51 with ConfigurationException

use of com.google.inject.ConfigurationException in project guice by google.

the class BoundFieldModuleTest method testBindingSuperTypeAccessSubType.

public void testBindingSuperTypeAccessSubType() {
    final Integer testValue = 1024;
    Object instance = new Object() {

        @Bind(to = Number.class)
        private Integer anInt = testValue;
    };
    BoundFieldModule module = BoundFieldModule.of(instance);
    Injector injector = Guice.createInjector(module);
    try {
        injector.getInstance(Integer.class);
        fail();
    } catch (ConfigurationException e) {
        assertContains(e.getMessage(), "No injectable constructor for type Integer.");
    }
}

Example 52 with ConfigurationException

use of com.google.inject.ConfigurationException in project guice by google.

the class InjectionPoint method getInjectionPoints.

/**
 * Returns an ordered, immutable set of injection points for the given type. Members in
 * superclasses come before members in subclasses. Within a class, fields come before methods.
 * Overridden methods are filtered out. The order of fields/methods within a class is consistent
 * but undefined.
 *
 * @param statics true is this method should return static members, false for instance members
 * @param errors used to record errors
 */
private static Set<InjectionPoint> getInjectionPoints(final TypeLiteral<?> type, boolean statics, Errors errors) {
    InjectableMembers injectableMembers = new InjectableMembers();
    OverrideIndex overrideIndex = null;
    List<TypeLiteral<?>> hierarchy = hierarchyFor(type);
    int topIndex = hierarchy.size() - 1;
    for (int i = topIndex; i >= 0; i--) {
        if (overrideIndex != null && i < topIndex) {
            // Knowing the position within the hierarchy helps us make optimizations.
            if (i == 0) {
                overrideIndex.position = Position.BOTTOM;
            } else {
                overrideIndex.position = Position.MIDDLE;
            }
        }
        TypeLiteral<?> current = hierarchy.get(i);
        for (Field field : getDeclaredFields(current)) {
            if (Modifier.isStatic(field.getModifiers()) == statics) {
                Annotation atInject = getAtInject(field);
                if (atInject != null) {
                    InjectableField injectableField = new InjectableField(current, field, atInject);
                    if (injectableField.jsr330 && Modifier.isFinal(field.getModifiers())) {
                        errors.cannotInjectFinalField(field);
                    }
                    injectableMembers.add(injectableField);
                }
            }
        }
        for (Method method : getDeclaredMethods(current)) {
            if (isEligibleForInjection(method, statics)) {
                Annotation atInject = getAtInject(method);
                if (atInject != null) {
                    InjectableMethod injectableMethod = new InjectableMethod(current, method, atInject);
                    if (checkForMisplacedBindingAnnotations(method, errors) || !isValidMethod(injectableMethod, errors)) {
                        if (overrideIndex != null) {
                            boolean removed = overrideIndex.removeIfOverriddenBy(method, false, injectableMethod);
                            if (removed) {
                                logger.log(Level.WARNING, "Method: {0} is not a valid injectable method (" + "because it either has misplaced binding annotations " + "or specifies type parameters) but is overriding a method that is " + "valid. Because it is not valid, the method will not be injected. " + "To fix this, make the method a valid injectable method.", method);
                            }
                        }
                        continue;
                    }
                    if (statics) {
                        injectableMembers.add(injectableMethod);
                    } else {
                        if (overrideIndex == null) {
                            /*
                 * Creating the override index lazily means that the first type in the hierarchy
                 * with injectable methods (not necessarily the top most type) will be treated as
                 * the TOP position and will enjoy the same optimizations (no checks for overridden
                 * methods, etc.).
                 */
                            overrideIndex = new OverrideIndex(injectableMembers);
                        } else {
                            // Forcibly remove the overridden method, otherwise we'll inject
                            // it twice.
                            overrideIndex.removeIfOverriddenBy(method, true, injectableMethod);
                        }
                        overrideIndex.add(injectableMethod);
                    }
                } else {
                    if (overrideIndex != null) {
                        boolean removed = overrideIndex.removeIfOverriddenBy(method, false, null);
                        if (removed) {
                            logger.log(Level.WARNING, "Method: {0} is not annotated with @Inject but " + "is overriding a method that is annotated with @javax.inject.Inject." + "Because it is not annotated with @Inject, the method will not be " + "injected. To fix this, annotate the method with @Inject.", method);
                        }
                    }
                }
            }
        }
    }
    if (injectableMembers.isEmpty()) {
        return Collections.emptySet();
    }
    ImmutableSet.Builder<InjectionPoint> builder = ImmutableSet.builder();
    for (InjectableMember im = injectableMembers.head; im != null; im = im.next) {
        try {
            builder.add(im.toInjectionPoint());
        } catch (ConfigurationException ignorable) {
            if (!im.optional) {
                errors.merge(ignorable.getErrorMessages());
            }
        }
    }
    return builder.build();
}

Example 53 with ConfigurationException

use of com.google.inject.ConfigurationException in project guice by google.

the class InjectionPoint method forConstructorOf.

/**
 * Returns a new injection point for the injectable constructor of {@code type}.
 *
 * <p>If {@code atInjectRequired} is true, the constructor must be annotated with {@code @Inject}.
 * If {@code atInjectRequired} is false, either a {@code @Inject} annotated constructor or a
 * non-private no arg constructor is required to be defined by the class corresponding to {@code
 * type}.
 *
 * @param type a concrete type with exactly one constructor annotated {@code @Inject}, or a
 *     no-arguments constructor that is not private.
 * @param atInjectRequired whether the constructor must be annotated with {@code Inject}.
 * @throws ConfigurationException if there is no injectable constructor, more than one injectable
 *     constructor, or if parameters of the injectable constructor are malformed, such as a
 *     parameter with multiple binding annotations.
 * @since 5.0
 */
public static InjectionPoint forConstructorOf(TypeLiteral<?> type, boolean atInjectRequired) {
    Class<?> rawType = getRawType(type.getType());
    Errors errors = new Errors(rawType);
    List<Constructor<?>> atInjectConstructors = Arrays.stream(rawType.getDeclaredConstructors()).filter(constructor -> constructor.isAnnotationPresent(Inject.class) || constructor.isAnnotationPresent(javax.inject.Inject.class)).collect(Collectors.toList());
    Constructor<?> injectableConstructor = null;
    atInjectConstructors.stream().filter(constructor -> constructor.isAnnotationPresent(Inject.class)).filter(constructor -> constructor.getAnnotation(Inject.class).optional()).forEach(errors::optionalConstructor);
    if (atInjectConstructors.size() > 1) {
        errors.tooManyConstructors(rawType);
    } else {
        injectableConstructor = Iterables.getOnlyElement(atInjectConstructors, null);
        if (injectableConstructor != null) {
            checkForMisplacedBindingAnnotations(injectableConstructor, errors);
        }
    }
    if (atInjectRequired && injectableConstructor == null) {
        errors.atInjectRequired(type);
    }
    errors.throwConfigurationExceptionIfErrorsExist();
    if (injectableConstructor != null) {
        return new InjectionPoint(type, injectableConstructor);
    }
    // If no annotated constructor is found, look for a no-arg constructor instead.
    try {
        Constructor<?> noArgConstructor = rawType.getDeclaredConstructor();
        // Disallow private constructors on non-private classes (unless they have @Inject)
        if (Modifier.isPrivate(noArgConstructor.getModifiers()) && !Modifier.isPrivate(rawType.getModifiers())) {
            errors.missingConstructor(type);
            throw new ConfigurationException(errors.getMessages());
        }
        checkForMisplacedBindingAnnotations(noArgConstructor, errors);
        return new InjectionPoint(type, noArgConstructor);
    } catch (NoSuchMethodException e) {
        errors.missingConstructor(type);
        throw new ConfigurationException(errors.getMessages());
    }
}

Example 54 with ConfigurationException

use of com.google.inject.ConfigurationException in project guice by google.

the class InjectionPoint method forInstanceMethodsAndFields.

/**
 * Returns all instance method and field injection points on {@code type}.
 *
 * @return a possibly empty set of injection points. The set has a specified iteration order. All
 *     fields are returned and then all methods. Within the fields, supertype fields are returned
 *     before subtype fields. Similarly, supertype methods are returned before subtype methods.
 * @throws ConfigurationException if there is a malformed injection point on {@code type}, such as
 *     a field with multiple binding annotations. The exception's {@link
 *     ConfigurationException#getPartialValue() partial value} is a {@code Set<InjectionPoint>} of
 *     the valid injection points.
 */
public static Set<InjectionPoint> forInstanceMethodsAndFields(TypeLiteral<?> type) {
    Errors errors = new Errors();
    Set<InjectionPoint> result = getInjectionPoints(type, false, errors);
    if (errors.hasErrors()) {
        throw new ConfigurationException(errors.getMessages()).withPartialValue(result);
    }
    return result;
}

Example 55 with ConfigurationException

use of com.google.inject.ConfigurationException in project guice by google.

the class ModuleRewriterTest method testRewriteBindings.

public void testRewriteBindings() {
    // create a module the binds String.class and CharSequence.class
    Module module = new AbstractModule() {

        @Override
        protected void configure() {
            bind(String.class).toInstance("Pizza");
            bind(CharSequence.class).toInstance("Wine");
        }
    };
    // record the elements from that module
    List<Element> elements = Elements.getElements(module);
    // create a rewriter that rewrites the binding to 'Wine' with a binding to 'Beer'
    List<Element> rewritten = Lists.newArrayList();
    for (Element element : elements) {
        element = element.acceptVisitor(new DefaultElementVisitor<Element>() {

            @Override
            public <T> Element visit(Binding<T> binding) {
                T target = binding.acceptTargetVisitor(Elements.<T>getInstanceVisitor());
                if ("Wine".equals(target)) {
                    return null;
                } else {
                    return binding;
                }
            }
        });
        if (element != null) {
            rewritten.add(element);
        }
    }
    // create a module from the original list of elements and the rewriter
    Module rewrittenModule = Elements.getModule(rewritten);
    // the wine binding is dropped
    Injector injector = Guice.createInjector(rewrittenModule);
    try {
        injector.getInstance(CharSequence.class);
        fail();
    } catch (ConfigurationException expected) {
    }
}