IBM DevWorks

JVM concurrency: Acting asynchronously with Akka

The actor model, a long-established approach to concurrent programming, gives you an easy way to build applications for high concurrency and scalability. Learn about the actor model and start working in Scala or Java with the Akka implementation of the model.

Use a Liberty JAAS login module for Bluemix single sign-on

This tutorial provides a technique for Liberty-aware authentication with the Bluemix SSO service. Create a sample app that uses the Bluemix SSO service for user login; the Liberty server creates all necessary objects (Subject, Principal, Session) upon successful authentication. A Liberty app can obtain Bluemix SSO capabilities using JAAS authentication with the SSO service so that your authentication mechanism is abstracted from application code.

Create and manage cloud applications with Java

For full, continuous integration, you need to automate deployment of applications in the cloud. This tutorial includes examples that show how to use the Cloud Foundry Java Client Library to automate how you create and manage apps in IBM Bluemix.

Embed rich reports in your applications

In this tutorial, learn how to embed reports in a sample application using the Embeddable Reporting service on Bluemix, IBM's cloud development platform. You'll start with a Liberty for Java application and add the Embeddable Reporting service, the MongoLab service, and the dashDB service. From this starting point, you can begin to embed your own reports into more complex applications.

Translate your Twitter feed

Use the Watson Machine Translation and Watson Language Identification services in IBM Bluemix to translate and normalize content from social media channels such as Twitter in preparation for sentiment analysis.

A year of Bluemix: Top 10 apps

See which Bluemix apps made the dW editorial team's list of favorites. From water conservation to taking on Watson, tracking your fitness, and finding your parked car, this list has a bit of everything.

Rapidly build a rich three-tier web app, Part 2: Build the application tier

In this three-part tutorial, learn how to use IBM Rational Application Developer and IBM Bluemix to rapidly build and host a multi-tier Java Enterprise Edition (JEE) app. Find out how you can save time in each stage: creating the data model and database, generating the data access code using the Java Persistence API (JPA), writing the Enterprise JavaBeans (EJBs) and web services, and using Dojo to create a rich web UI for viewing and modifying the data. When the application is complete, you'll deploy it to IBM Bluemix, the IBM Platform as a Service (PaaS).

Rapidly build a rich three-tier web app, Part 3: Create a rich web UI

In this three-part tutorial, learn how to use IBM Rational Application Developer and IBM Bluemix to rapidly build and host a multi-tier Java Enterprise Edition (JEE) app. Find out how you can save time in each stage: creating the data model and database, generating the data access code using the Java Persistence API (JPA), writing the Enterprise JavaBeans (EJBs) and web services, and using Dojo to create a rich web UI for viewing and modifying the data. When the application is complete, you'll deploy it to IBM Bluemix, the IBM Platform as a Service (PaaS).

Rapidly build a rich three-tier web app, Part 1: Build the database

In this three-part tutorial, learn how to use IBM Rational Application Developer and IBM Bluemix to rapidly build and host a multi-tier Java Enterprise Edition (JEE) app. Find out how you can save time in each stage: creating the data model and database, generating the data access code using the Java Persistence API (JPA), writing the Enterprise JavaBeans (EJBs) and web services, and using Dojo to create a rich web UI for viewing and modifying the data. When the application is complete, you'll deploy it to IBM Bluemix, the IBM Platform as a Service (PaaS).

Going to JavaOne? Take a Break!

If you find yourself looking for a little downtime from all the excitement at JavaOne 2014, look no further. This article sends you in the right direction to rest, refresh, and recharge.

Build a data mining app using Java, Weka, and the dashDB service

The dashDB (formerly known as Analytics Warehouse and BLU Acceleration) service provides data warehousing and analytics as a service on IBM Bluemix. Developers can develop and deploy a heavy-duty analytic application using blazing-fast IBM BLU database technology offered in the cloud. Learn how to develop a data mining application using the Weka statistical analysis tool and leveraging the IBM BLU columnar database.

Unlock your on-premises translated content in the cloud

Enterprise software developers making the transition to cloud computing often ask how they can use the existing translated content in their on-premises databases from the cloud. Find out how to use the Cloud Integration add-on in Bluemix to unlock your translated content from systems of record and access it from the cloud even if the database is behind a secure firewall.

Agile DevOps: Unleash the Chaos Monkey

When would it ever be a good idea to randomly and intentionally try to terminate parts of your software system -- including the hardware it runs on? How about early and often? In this Agile DevOps installment, DevOps expert Paul Duvall describes approaches to creating a Chaos Monkey (as it's been dubbed by Netflix) to ensure that your production infrastructure can recover from inevitable system failures.

Explore MQTT and the Internet of Things service on IBM Bluemix

For interconnecting devices and applications, the Bluemix Internet of Things (IoT) service is simple but powerful, thanks to MQTT (Message Queue Telemetry Transport). In this tutorial, see how MQTT works effectively behind the IoT service, and follow an easy process to build apps using the IoT service with Java and the Node-RED editor.

Integrating FindBugs, CheckStyle and Cobertura with Rational Team Concert build system

This article discusses the integration of quality assurance tools FindBugs, CheckStyle and Cobertura with IBM Rational Team Concert. This integration reduces defect generation when compiling and building an application. It improves the code quality of the application while performing the day-to-day build job. This technique can be used cross-platform with products and applications built on Java technology.

Build a portable Java EE app across Bluemix and private cloud patterns

As a Java developer, you want the “write once, run anywhere” promise of Java. How can you ensure this if you are moving your applications between IBM Bluemix and on-premise cloud environments like SmartCloud Orchestrator or Pure Application System? In this article, we show you how.

Agile DevOps: Continuous software delivery in the cloud

When developers and operations work together in a collaborative manner, they often need one place to manage the software delivery process and pipeline of changes. A Continuous Delivery (CD) platform addresses this need. In this Agile DevOps installment, DevOps expert Paul Duvall lays out how you can use OpenDelivery, an open CD platform.

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