Examples with Errors org.elasticsearch.common.inject.internal.Errors used on opensource projects

Example 11 with Errors

use of org.elasticsearch.common.inject.internal.Errors in project elasticsearch by elastic.

the class InjectorImpl method createJustInTimeBinding.

/**
     * Returns a new just-in-time binding created by resolving {@code key}. The strategies used to
     * create just-in-time bindings are:
     * <ol>
     * <li>Internalizing Providers. If the requested binding is for {@code Provider<T>}, we delegate
     * to the binding for {@code T}.
     * <li>Converting constants.
     * <li>ImplementedBy and ProvidedBy annotations. Only for unannotated keys.
     * <li>The constructor of the raw type. Only for unannotated keys.
     * </ol>
     *
     * @throws org.elasticsearch.common.inject.internal.ErrorsException
     *          if the binding cannot be created.
     */
<T> BindingImpl<T> createJustInTimeBinding(Key<T> key, Errors errors) throws ErrorsException {
    if (state.isBlacklisted(key)) {
        throw errors.childBindingAlreadySet(key).toException();
    }
    // Handle cases where T is a Provider<?>.
    if (isProvider(key)) {
        // These casts are safe. We know T extends Provider<X> and that given Key<Provider<X>>,
        // createProviderBinding() will return BindingImpl<Provider<X>>.
        @SuppressWarnings("unchecked") BindingImpl binding = createProviderBinding((Key) key, errors);
        return binding;
    }
    // Handle cases where T is a MembersInjector<?>
    if (isMembersInjector(key)) {
        // These casts are safe. T extends MembersInjector<X> and that given Key<MembersInjector<X>>,
        // createMembersInjectorBinding() will return BindingImpl<MembersInjector<X>>.
        @SuppressWarnings("unchecked") BindingImpl binding = createMembersInjectorBinding((Key) key, errors);
        return binding;
    }
    // Try to convert a constant string binding to the requested type.
    BindingImpl<T> convertedBinding = convertConstantStringBinding(key, errors);
    if (convertedBinding != null) {
        return convertedBinding;
    }
    // If the key has an annotation...
    if (key.hasAnnotationType()) {
        // Look for a binding without annotation attributes or return null.
        if (key.hasAttributes()) {
            try {
                Errors ignored = new Errors();
                return getBindingOrThrow(key.withoutAttributes(), ignored);
            } catch (ErrorsException ignored) {
            // throw with a more appropriate message below
            }
        }
        throw errors.missingImplementation(key).toException();
    }
    Object source = key.getTypeLiteral().getRawType();
    BindingImpl<T> binding = createUnitializedBinding(key, Scoping.UNSCOPED, source, errors);
    initializeBinding(binding, errors);
    return binding;
}