Tech

Spring Modulith 1.0 Gains Production-Readiness, IDE Support and Improved Testability – InfoQ.com

Published

1 year ago

August 30, 2023

Spring Modulith 1.0 was promoted from its experimental status and became a fully supported Spring project. It structures Spring Boot 3 applications through modules and events using conventions and optional configuration. That module structure is now visible in IDEs like Spring Tool Suite and Visual Studio Code through actuators. The Event Publication Registry (EPR) persists event completion faster. And Integration Tests Scenarios ease testing events.

Spring Modulith modules exist because Java packages are not hierarchical. In the sample below, Java’s default visibility already hides the example.inventory.SomethingInventoryInternal class from other packages. But the example.order.internal package must be public so example.order can access it. That makes it visible to all other packages.

└─  src/main/java
   ├─  example
   |  └─  Application.java
   ├─  example.inventory
   |  ├─  InventoryManagement.java
   |  └─  SomethingInventoryInternal.java
   ├─  example.order
   |  └─  OrderManagement.java
   └─  example.order.internal
      └─  SomethingOrderInternal.java

Spring Modulith modules neither use the Java Platform Module System (JPMS) nor generate code. Instead, each direct sub-package of the main package is simply a module by default. That’s inventory and order in the example above. All public types in the package make up the module API. Crucially, Spring Modulith considers sub-packages internal to the module. That solves the problem of the public example.order.internal package described above.

Java still compiles when modules access other modules’ internal packages. But the Spring Modulith test ApplicationModules.of(Application.class).verify() will fail then. Spring Modulith uses ArchUnit to detect such violations.

Spring Modulith encourages using Spring Framework application events for communication between modules. Spring Modulith enhances these events with the EPR, guaranteeing event delivery. So even if a module receiving the event crashes or the entire application does, the registry still delivers the event when the module or application runs again.

The EPR stores events with JPA, JDBC, and MongoDB. The latter one gained automatically configured transactions in this release. An application with Spring Modulith can use modules and events together or each feature alone.

Until now, asynchronous transaction event listeners required three annotations:

@Component
class InventoryManagement 

  @Async
  @Transactional(propagation = Propagation.REQUIRES_NEW)
  @TransactionalEventListener
  void on(OrderCompleted event)  /*…*/

The new @ApplicationModuleListener shortcut in version 1.0 simplifies that:

@Component
class InventoryManagement 

  @ApplicationModuleListener
  void on(OrderCompleted event)  /*…*/

Testing asynchronous transactional code can be challenging. That’s where the new Integration Test Scenarios help. They can be injected into Java tests and allow to define both the start of an event-driven test and its expected results. Furthermore, these scenarios can customize execution details and define additional event tests.

jMolecules defines annotations for architectures, such as Domain-Driven Design (@ValueObject or @Repository, for example) or Hexagonal Architecture (like @Port and @Adapter). Spring Modulith 1.0 detects jMolecules annotations and generates application documentation that groups classes by their annotated role, such as “Port” or “Adapter”.

VMware announced the upcoming Spring Modulith 1.1 at Spring One in August 2023. This new version requires Spring Boot 3.2, which will be released on November 23, 2023. Version 1.1 will support additional databases for event persistence, such as Neo4J, to better align with Spring Data. And it can automatically send events to external destinations. That’s helpful when at least some of the events are of interest to other applications. Version 1.1 will support Kafka, AMQP, and potentially Redis as external event destinations.

Oliver Drotbohm, Staff 2 Engineer at VMware and the driving force behind Spring Modulith, spoke to InfoQ about Spring Modulith.

InfoQ: Spring Modulith has been out for ten months. How has the feedback been so far?

Oliver Drotbohm: The feedback at conferences and in online communities has been overwhelmingly positive. The primary aspect that made folks slightly hesitant was the fact that the project was considered experimental until its release a few days ago. We’re looking forward to how the community will adopt it with that impediment removed.

InfoQ: How do you define success for Spring Modulith? And how do you measure it?

Drotbohm: As with all Spring projects, we are monitoring the Maven Central download numbers, of course, because those are skewed in either direction. Still, the trends in the number’s development are usually a good indicator of the usage growth rate of an individual project. We also have numbers from start.spring.io. Given that Spring Modulith’s primary target is new applications, those will hopefully give us a good impression as well. Other than that, GitHub stars, definitely as well.

InfoQ: Spring Tool Suite and VS Code can read the module structure. What are your plans for also supporting IntelliJ and Eclipse?

Drotbohm: Eclipse is supported via the STS plugins. For IDEA, we’re in touch with the development team, and they’re currently looking into it.

InfoQ: Spring Modulith currently has two core abstractions – modules and events. What other abstractions do you envision in future versions – if any?

Drotbohm: The two abstractions actually serve the two fundamental activities in software architecture as described by Neil Ford and Mark Richards in “Software Architecture — The Hard Parts“: “pulling things apart,” i.e., defining an application’s functional decomposition, and “putting them back together,” by defining a programming model for the decomposed individual parts to interact eventually. The application modules concept helps to implement functional structure within a code base, including means to make sure that things that are supposed to stay apart actually do. The event-based application integration programming model we recommend allows those modules to still interact in an eventually consistent way.

We are currently primarily looking for these two parts to evolve, find out how the community will use them, and how we can react to make them even more useful. The event externalization mechanism currently scheduled for 1.1 M1 reflects that.

InfoQ: In your estimation, what percentage of Spring Modulith applications use modules, and what percentage uses events?

Drotbohm: We’ll have to see what the download numbers for the individual Spring Modulith artifacts will tell. The stats during the experimental phase show a 90/10 split for modules (including the module integration test support) versus events.

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Tech

How to Preorder the PlayStation 5 Pro in Canada

Published

3 days ago

September 10, 2024

Harry Miller

Sony has made it easy for Canadian consumers to preorder the PlayStation 5 Pro in Canada directly from PlayStation’s official website. Here’s how:

Visit the Official Website: Go to direct.playstation.com and navigate to the PS5 Pro section once preorders go live on September 26, 2024.
Create or Log in to Your PlayStation Account: If you don’t have a PlayStation account, you will need to create one. Existing users can simply log in to proceed.
Place Your Preorder: Once logged in, follow the instructions to preorder your PS5 Pro. Ensure you have a valid payment method ready and double-check your shipping information for accuracy.

Preorder Through Major Canadian Retailers

While preordering directly from PlayStation is a popular option, you can also secure your PS5 Pro through trusted Canadian retailers. These retailers are expected to offer preorders on or after September 26:

Best Buy Canada
Walmart Canada
EB Games (GameStop)
Amazon Canada
The Source

Steps to Preorder via Canadian Retailers:

Visit Retailer Websites: Search for “PlayStation 5 Pro” on the website of your preferred retailer starting on September 26.
Create or Log in to Your Account: If you’re shopping online, having an account with the retailer can speed up the preorder process.
Preorder in Store: For those who prefer in-person shopping, check with local stores regarding availability and preorder policies.

3. Sign Up for Notifications

Many retailers and websites offer the option to sign up for notifications when the preorder goes live. If you’re worried about missing out due to high demand, this can be a useful option.

Visit Retailer Sites: Look for a “Notify Me” or “Email Alerts” option and enter your email to stay informed.
Use PlayStation Alerts: Sign up for notifications directly through Sony to be one of the first to know when preorders are available.

4. Prepare for High Demand

Preordering the PS5 Pro is expected to be competitive, with high demand likely to result in quick sellouts, just as with the initial release of the original PS5. To maximize your chances of securing a preorder:

Act Quickly: Be prepared to place your order as soon as preorders open. Timing is key, as stock can run out within minutes.
Double-Check Payment Information: Ensure your credit card or payment method is ready to go. Any delays during the checkout process could result in losing your spot.
Stay Informed: Monitor PlayStation and retailer websites for updates on restocks or additional preorder windows.

Final Thoughts

The PlayStation 5 Pro is set to take gaming to the next level with its enhanced performance, graphics, and new features. Canadian gamers should be ready to act fast when preorders open on September 26, 2024, to secure their console ahead of the holiday season. Whether you choose to preorder through PlayStation’s official website or your preferred retailer, following the steps outlined above will help ensure a smooth and successful preorder experience.

For more details on the PS5 Pro and to preorder, visit direct.playstation.com or stay tuned to updates from major Canadian retailers.

Tech

Introducing the PlayStation 5 Pro: The Next Evolution in Gaming

Published

3 days ago

September 10, 2024

Harry Miller

Since the PlayStation 5 (PS5) launched four years ago, PlayStation has continuously evolved to meet the demands of its players. Today, we are excited to announce the next step in this journey: the PlayStation 5 Pro. Designed for the most dedicated players and game creators, the PS5 Pro brings groundbreaking advancements in gaming hardware, raising the bar for what’s possible.

Key Features of the PS5 Pro

The PS5 Pro comes equipped with several key performance enhancements, addressing the requests of gamers for smoother, higher-quality graphics at a consistent 60 frames per second (FPS). The console’s standout features include:

Upgraded GPU: The PS5 Pro’s GPU boasts 67% more Compute Units than the current PS5, combined with 28% faster memory. This allows for up to 45% faster rendering speeds, ensuring a smoother gaming experience.
Advanced Ray Tracing: Ray tracing capabilities have been significantly enhanced, with reflections and refractions of light being processed at double or triple the speed of the current PS5, creating more dynamic visuals.
AI-Driven Upscaling: Introducing PlayStation Spectral Super Resolution, an AI-based upscaling technology that adds extraordinary detail to images, resulting in sharper image clarity.
Backward Compatibility & Game Boost: More than 8,500 PS4 games playable on PS5 Pro will benefit from PS5 Pro Game Boost, stabilizing or enhancing performance. PS4 games will also see improved resolution on select titles.
VRR & 8K Support: The PS5 Pro supports Variable Refresh Rate (VRR) and 8K gaming for the ultimate visual experience, while also launching with the latest wireless technology, Wi-Fi 7, in supported regions.

Optimized Games & Patches

Game creators have quickly embraced the new technology that comes with the PS5 Pro. Many games will receive free updates to take full advantage of the console’s new features, labeled as PS5 Pro Enhanced. Some of the highly anticipated titles include:

Alan Wake 2
Assassin’s Creed: Shadows
Demon’s Souls
Dragon’s Dogma 2
Final Fantasy 7 Rebirth
Gran Turismo 7
Marvel’s Spider-Man 2
Ratchet & Clank: Rift Apart
Horizon Forbidden West

These updates will allow players to experience their favorite games at a higher fidelity, taking full advantage of the console’s improved graphics and performance.

Design & Compatibility

Maintaining consistency within the PS5 family, the PS5 Pro retains the same height and width as the original PS5 model. Players will also have the option to add an Ultra HD Blu-ray Disc Drive or swap console covers when available.

Additionally, the PS5 Pro is fully compatible with all existing PS5 accessories, including the PlayStation VR2, DualSense Edge, Pulse Elite, and Access controller. This ensures seamless integration into your current gaming setup.

Pricing & Availability

The PS5 Pro will be available starting November 7, 2024, at a manufacturer’s suggested retail price (MSRP) of:

$699.99 USD
$949.99 CAD
£699.99 GBP
€799.99 EUR
¥119,980 JPY

Each PS5 Pro comes with a 2TB SSD, a DualSense wireless controller, and a copy of Astro’s Playroom pre-installed. Pre-orders begin on September 26, 2024, and the console will be available at participating retailers and directly from PlayStation via direct.playstation.com.

The launch of the PS5 Pro marks a new chapter in PlayStation’s commitment to delivering cutting-edge gaming experiences. Whether players choose the standard PS5 or the PS5 Pro, PlayStation aims to provide the best possible gaming experience for everyone.

Preorder your PS5 Pro and step into the next generation of gaming this holiday season.

Tech

Google Unveils AI-Powered Pixel 9 Lineup Ahead of Apple’s iPhone 16 Release

Published

1 month ago

August 13, 2024

Harry Miller

Google has launched its next generation of Pixel phones, setting the stage for a head-to-head competition with Apple as both tech giants aim to integrate more advanced artificial intelligence (AI) features into their flagship devices. The unveiling took place near Google’s Mountain View headquarters, marking an early debut for the Pixel 9 lineup, which is designed to showcase the latest advancements in AI technology.

The Pixel 9 series, although a minor player in global smartphone sales, is a crucial platform for Google to demonstrate the cutting-edge capabilities of its Android operating system. With AI at the core of its strategy, Google is positioning the Pixel 9 phones as vessels for the transformative potential of AI, a trend that is expected to revolutionize the way people interact with technology.

Rick Osterloh, Google’s senior vice president overseeing the Pixel phones, emphasized the company’s commitment to AI, stating, “We are obsessed with the idea that AI can make life easier and more productive for people.” This echoes the narrative Apple is likely to push when it unveils its iPhone 16, which is also expected to feature advanced AI capabilities.

The Pixel 9 lineup will be the first to fully integrate Google’s Gemini AI technology, designed to enhance user experience through more natural, conversational interactions. The Gemini assistant, which features 10 different human-like voices, can perform a wide array of tasks, particularly if users allow access to their emails and documents.

In an on-stage demonstration, the Gemini assistant showcased its ability to generate creative ideas and even analyze images, although it did experience some hiccups when asked to identify a concert poster for singer Sabrina Carpenter.

To support these AI-driven features, Google has equipped the Pixel 9 with a special chip that enables many AI processes to be handled directly on the device. This not only improves performance but also enhances user privacy and security by reducing the need to send data to remote servers.

Google’s aggressive push into AI with the Pixel 9 comes as Apple prepares to unveil its iPhone 16, which is expected to feature its own AI advancements. However, Google’s decision to offer a one-year free subscription to its advanced Gemini Assistant, valued at $240, may pressure Apple to reconsider any plans to charge for its AI services.

The standard Pixel 9 will be priced at $800, a $100 increase from last year, while the Pixel 9 Pro will range between $1,000 and $1,100, depending on the model. Google also announced the next iteration of its foldable Pixel phone, priced at $1,800.

In addition to the new Pixel phones, Google also revealed updates to its Pixel Watch and wireless earbuds, directly challenging Apple’s dominance in the wearable tech market. These products, like the Pixel 9, are designed to integrate seamlessly with Google’s AI-driven ecosystem.

Google’s event took place against the backdrop of a significant legal challenge, with a judge recently ruling that its search engine constitutes an illegal monopoly. This ruling could lead to further court proceedings that may force Google to make significant changes to its business practices, potentially impacting its Android software or other key components of its $2 trillion empire.

Despite these legal hurdles, Google is pressing forward with its vision of an AI-powered future, using its latest devices to showcase what it believes will be the next big leap in technology. As the battle for AI supremacy heats up, consumers can expect both Google and Apple to push the boundaries of what their devices can do, making the choice between them more compelling than ever.