Example usage for com.google.common.reflect Invokable isAnnotationPresent

Introduction

In this page you can find the example usage for com.google.common.reflect Invokable isAnnotationPresent.

Prototype

default boolean isAnnotationPresent(Class<? extends Annotation> annotationClass) 

Source Link

Document

Returns true if an annotation for the specified type is present on this element, else false.

Usage

From source file:org.jclouds.aws.filters.FormSignerUtils.java

private static Optional<String> getAnnotatedApiVersion(Invocation invocation) {
    final Invokable<?, ?> invokable = invocation.getInvokable();
    if (invokable.isAnnotationPresent(ApiVersionOverride.class)) {
        return Optional.fromNullable(invokable.getAnnotation(ApiVersionOverride.class).value());
    } else {/*  w  w w  .  j  a  va 2 s  . co m*/
        final Class<?> owner = invokable.getOwnerType().getRawType();
        if (owner.isAnnotationPresent(ApiVersionOverride.class)) {
            return Optional.fromNullable(owner.getAnnotation(ApiVersionOverride.class).value());
        }
    }
    return Optional.absent();
}

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From source file:org.jclouds.rest.internal.TransformerForRequest.java

@SuppressWarnings({ "unchecked" })
private static Key<? extends Function<HttpResponse, ?>> getJsonParserKeyForMethod(Invokable<?, ?> invoked) {
    ParameterizedType parserType;
    if (invoked.isAnnotationPresent(Unwrap.class)) {
        parserType = newParameterizedType(UnwrapOnlyJsonValue.class, getReturnTypeFor(invoked.getReturnType()));
    } else {/*from  w w w  .j  a va2  s  . c  o m*/
        parserType = newParameterizedType(ParseJson.class, getReturnTypeFor(invoked.getReturnType()));
    }
    return (Key<? extends Function<HttpResponse, ?>>) Key.get(parserType);
}

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From source file:org.jclouds.rest.internal.TransformerForRequest.java

@SuppressWarnings("unchecked")
private static Key<? extends Function<HttpResponse, ?>> getJAXBParserKeyForMethod(Invokable<?, ?> invoked) {
    Optional<Type> configuredReturnVal = Optional.absent();
    if (invoked.isAnnotationPresent(JAXBResponseParser.class)) {
        Type configuredClass = invoked.getAnnotation(JAXBResponseParser.class).value();
        configuredReturnVal = configuredClass.equals(NullType.class) ? Optional.<Type>absent()
                : Optional.<Type>of(configuredClass);
    }/*ww  w  .  j  a  va 2s.  c  o  m*/
    Type returnVal = configuredReturnVal.or(getReturnTypeFor(invoked.getReturnType()));
    Type parserType = newParameterizedType(ParseXMLWithJAXB.class, returnVal);
    return (Key<? extends Function<HttpResponse, ?>>) Key.get(parserType);
}

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From source file:org.jclouds.rest.binders.BindMapToStringPayload.java

@SuppressWarnings("unchecked")
@Override//from   w w w  . j  av a  2  s . co m
public <R extends HttpRequest> R bindToRequest(R request, Map<String, Object> postParams) {
    checkNotNull(postParams, "postParams");
    GeneratedHttpRequest r = GeneratedHttpRequest.class.cast(checkNotNull(request, "request"));
    Invokable<?, ?> invoked = r.getInvocation().getInvokable();
    checkArgument(invoked.isAnnotationPresent(Payload.class),
            "method %s must have @Payload annotation to use this binder", invoked);
    String payload = invoked.getAnnotation(Payload.class).value();
    if (postParams.size() > 0) {
        payload = urlDecode(expand(payload, postParams));
    }
    return (R) request.toBuilder().payload(payload).build();
}

---

From source file:org.jclouds.rest.config.ReadAnnotationsAndProperties.java

@Override
public Optional<Long> getTimeoutNanos(Invocation in) {
    String commandName = getCommandName(in);
    Optional<Long> defaultMillis = fromNullable(timeouts.get("default"));
    Optional<Long> timeoutMillis = fromNullable(timeouts.get(commandName));
    Invokable<?, ?> invoked = in.getInvokable();
    if (invoked.isAnnotationPresent(Named.class)) {
        timeoutMillis = timeoutMillis.or(defaultMillis);
    } else {//from   ww  w  .  j ava 2  s .co  m
        // TODO: remove old logic once Named annotations are on all methods
        String className = invoked.getOwnerType().getRawType().getSimpleName().replace("AsyncClient", "Client")
                .replace("AsyncApi", "Api");
        timeoutMillis = timeoutMillis.or(fromNullable(timeouts.get(className))).or(defaultMillis);
    }
    if (timeoutMillis.isPresent())
        return Optional.of(MILLISECONDS.toNanos(timeoutMillis.get()));
    return Optional.absent();
}

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From source file:org.jclouds.rest.config.ReadAnnotationsAndProperties.java

@Override
public String getCommandName(Invocation invocation) {
    Invokable<?, ?> invoked = invocation.getInvokable();
    if (invoked.isAnnotationPresent(Named.class)) {
        return invoked.getAnnotation(Named.class).value();
    } else {//from ww  w.  j  a v  a 2 s.  c o  m
        // TODO: remove old logic once Named annotations are on all methods
        String className = invoked.getOwnerType().getRawType().getSimpleName().replace("AsyncClient", "Client")
                .replace("AsyncApi", "Api");
        return className + "." + invoked.getName();
    }
}

---

From source file:org.jclouds.rest.internal.BlockOnFuture.java

private Optional<Long> timeoutInNanos(Invokable<?, ?> invoked, Map<String, Long> timeouts) {
    Optional<Long> defaultMillis = fromNullable(timeouts.get("default"));
    Optional<Long> timeoutMillis;
    if (invoked.isAnnotationPresent(Named.class)) {
        String commandName = invoked.getAnnotation(Named.class).value();
        timeoutMillis = fromNullable(timeouts.get(commandName)).or(defaultMillis);
    } else {/* ww w.  j  a  v a2 s . c  o  m*/
        // TODO: remove old logic, once Named annotations are present on all methods
        String className = invoked.getOwnerType().getRawType().getSimpleName().replace("AsyncClient", "Client")
                .replace("AsyncApi", "Api");
        timeoutMillis = fromNullable(timeouts.get(className + "." + invoked.getName()))
                .or(fromNullable(timeouts.get(className))).or(defaultMillis);
    }
    if (timeoutMillis.isPresent())
        return Optional.of(TimeUnit.MILLISECONDS.toNanos(timeoutMillis.get()));
    return Optional.absent();
}

---

From source file:org.jclouds.rest.internal.TransformerForRequest.java

@VisibleForTesting
@SuppressWarnings({ "rawtypes", "unchecked" })
public Function<HttpResponse, ?> getTransformerForMethod(Invocation invocation, Injector injector) {
    Invokable<?, ?> invoked = invocation.getInvokable();
    Function<HttpResponse, ?> transformer;
    if (invoked.isAnnotationPresent(SelectJson.class)) {
        Type returnVal = getReturnTypeFor(invoked.getReturnType());
        if (invoked.isAnnotationPresent(OnlyElement.class))
            returnVal = newParameterizedType(Set.class, returnVal);
        transformer = new ParseFirstJsonValueNamed(injector.getInstance(GsonWrapper.class),
                TypeLiteral.get(returnVal), invoked.getAnnotation(SelectJson.class).value());
        if (invoked.isAnnotationPresent(OnlyElement.class))
            transformer = compose(new OnlyElementOrNull(), transformer);
    } else {//  w  w  w .  j  ava2 s.c o m
        transformer = injector.getInstance(getParserOrThrowException(invocation));
    }
    return transformer;
}

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From source file:org.jclouds.rest.internal.DelegatesToInvocationFunction.java

protected Object handle(Invocation invocation) {
    Invokable<?, ?> invokable = invocation.getInvokable();
    if (CLOSE.equals(invokable)) {
        try {/*  www. j a  v a 2s . c o m*/
            injector.getInstance(Closer.class).close();
            return null;
        } catch (Throwable e) {
            throw propagate(e);
        }
    } else if (invokable.isAnnotationPresent(Provides.class)) {
        return lookupValueFromGuice(invokable);
    } else if (invokable.isAnnotationPresent(Delegate.class)) {
        return propagateContextToDelegate(invocation);
    } else {
        return methodInvoker.apply(invocation);
    }
}

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From source file:org.immutables.eventual.Providers.java

private EventualProvider<?> providerFor(Invokable<T, ?> method, Errors methodErrors) {
    Annotation[] annotations = method.getAnnotations();

    verifyMethodAccessibility(methodErrors, method, source);

    @Nullable//w  w w.j a  v  a 2 s. com
    Annotation bindingAnnotation = Annotations.findBindingAnnotation(methodErrors, method, annotations);

    verifyAbsenseOfScopeAnnotation(methodErrors, annotations, source);

    List<Dependency<ListenableFuture<?>>> dependencies = Lists
            .newArrayListWithCapacity(method.getParameters().size());

    for (Parameter parameter : method.getParameters()) {
        dependencies.add(extractDependency(methodErrors, parameter));
    }

    Key<ListenableFuture<?>> bindingKey;
    boolean exposedBinding = method.isAnnotationPresent(Exposed.class);

    if (isVoid(method)) {
        bindingKey = futureKey(TypeToken.of(Boolean.class), new BlackholedAnnotation());
        exposedBinding = false;
    } else {
        bindingKey = futureKey(method.getReturnType(), bindingAnnotation);
    }

    return new EventualProvider<>(method, exposedBinding, dependencies, bindingKey, scopeAnnotation, source);
}

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