|By Deepak Vohra, Ajay Vohra||
|August 8, 2005 12:00 PM EDT||
The JBoss open source application server is commonly used in the development phase of a J2EE project. In the production phase the commercial BEA WebLogic server is preferred because of its enhanced set of features. Without modifications, an application developed in JBoss does not deploy in WebLogic server.
The deployment descriptors for the WebLogic server are different from the JBoss deployment descriptors. An application may be migrated to WebLogic by converting the vendor-specific deployment descriptors to WebLogic. In this tutorial an EJB application developed in JBoss will be migrated to WebLogic with MySQL as the database.
Download and install the BEA WebLogic server (www.bea.com/framework.jsp?CNT=overview.htm &FP=/content/products/weblogic/server). Create a server domain. Download the MySQL JDBC driver JAR file (www.mysql.com/products/connector/j/) and the MySQL database server (www.mysql.com/products/mysql/). Develop a Java application or obtain an XSLT utility to transform the JBoss deployment descriptors to WebLogic deployment descriptors with an XSLT.
Without deployment descriptor conversions, an application developed for JBoss does not deploy in WebLogic. In this tutorial, we will migrate an example entity EJB application developed in JBoss to WebLogic by converting the JBoss deployment descriptors to WebLogic deployment descriptors.
The example application consists of a Catalog entity EJB. The EJB's bean class (CatalogBean.java) is shown in Listing 1. The remote interface (Catalog.java) and home interface (CatalogHome.java) are shown in Listing 2 and Listing 3. The entity EJB classes do not need to be modified for deploying a JBoss EJB application to WebLogic. Only the deployment descriptors for an EJB are required to be modified.
Configuring WebLogic JDBC
In this section a JDBC connection will be configured with the MySQL database from the WebLogic server. First a JDBC Connection Pool is configured and subsequently a JNDI data source to access the JDBC connection pool is configured. Add the MySQL database driver JAR file, mysql-connector-java-3.0.16-ga-bin.jar, to the CLASSPATH variable of the examples server. The CLASSPATH variable for the WebLogic server is set in the <BEA>\user_projects\domains\mydomain\startWebLogic script. Double-click on the startWebLogic script file to start the WebLogic examples server. The server gets started on port 7001. Login to the WebLogic Administration Console with the URL http://localhost:7001/console. The login page for the Administration Console gets displayed. In the login page specify user name and password and log in to the administration console.
In the administration console select the Services>JDBC node. To configure a JDBC connection pool, right-click on the Connection Pools node and select Configure a new JDBCConnectionPool. In the Choose database frame displayed select MySQL as the Database Type. Select MySQL's Driver (Type 4) as the Database Driver. Click on the Continue button. Specify the connection properties for the JDBC connection. In the Database Name field specify test, the example MySQL database. In the Host Name field specify localhost. In the Database User Name field specify root. A password is not required to login to MySQL database with the root username, but the WebLogic server requires a password to be specified. Specify the password for the user name. Click on the Continue button.
In the Test database connection frame, the MySQL driver com.mysql.jdbc.Driver is specified in the Driver Classname field. The MySQL driver is used to establish a connection with the MySQL database. In the URL field specify jdbc:mysql://localhost/test as the connection URL for the database. To test the JDBC connection to the database click on the Test Driver Configuration button. If a connection gets established with the database, a "connection successful" message gets displayed. In the Create and deploy frame, select the server on which the connection pool is to be deployed. Click on the Create and deploy button to deploy the JDBC connection pool on the server. The configured connection gets deployed on the examples server and a node for the connection pool gets added to the JDBC>Connection Pools node. To modify the configuration of the connection pool, select the connection pool node and modify the settings in the different tabs: General, Target and Deploy, Monitoring, Control, Testing, Connections.
Next, configure a data source in the WebLogic server. Right-click on the Services>JDBC node and select Configure a new JDBCTxDataSource. Specify a data source name. In the JNDI Name field specify a JNDI name for the data source - MySQLDS for example. Click on the Continue button. In the Connect to connection pool frame, select a connection pool from the list of connection pools. Select the connection pool that was configured in the previous section and click on the Continue button. In the Target the data source frame select a server as the target server for the data source. Click on the Create button. The configured data source gets deployed on the examples server and a node for the data source gets added to the Data Sources node. To modify the data source select the data source node and modify the settings in the different tabs: Configuration, Target, and Deploy. The data source is available with the JNDI name MySQLDS, which was specified in the data source configuration.
Converting the JBoss EJB Application
In the previous section the WebLogic server was configured with the MySQL database. In this section we'll convert the JBoss EJB application to a WebLogic EJB application, which involves converting the deployment descriptors. A JBoss entity EJB application consists of the EJB deployment descriptors (ejb-jar.xml, jboss.xml, and jbosscmp-jdbc.xml), the bean class (CatalogBean.java), the remote interface (Catalog.java), and the home interface (CatalogHome.java). To deploy the entity EJB in the JBoss server, an EJB JAR file is created; this EJB JAR file has the structure:
What does it look like when you have access to cloud infrastructure and platform under the same roof? Let’s talk about the different layers of Technology as a Service: who cares, what runs where, and how does it all fit together. In his session at 18th Cloud Expo, Phil Jackson, Lead Technology Evangelist at SoftLayer, an IBM company, spoke about the picture being painted by IBM Cloud and how the tools being crafted can help fill the gaps in your IT infrastructure.
Jul. 23, 2016 10:45 AM EDT Reads: 1,945
"C2M is our digital transformation and IoT platform. We've had C2M on the market for almost three years now and it has a comprehensive set of functionalities that it brings to the market," explained Mahesh Ramu, Vice President, IoT Strategy and Operations at Plasma, in this SYS-CON.tv interview at @ThingsExpo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 23, 2016 10:00 AM EDT Reads: 1,025
"delaPlex is a software development company. We do team-based outsourcing development," explained Mark Rivers, COO and Co-founder of delaPlex Software, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 23, 2016 10:00 AM EDT Reads: 1,876
Whether your IoT service is connecting cars, homes, appliances, wearable, cameras or other devices, one question hangs in the balance – how do you actually make money from this service? The ability to turn your IoT service into profit requires the ability to create a monetization strategy that is flexible, scalable and working for you in real-time. It must be a transparent, smoothly implemented strategy that all stakeholders – from customers to the board – will be able to understand and comprehe...
Jul. 23, 2016 09:45 AM EDT Reads: 1,719
Traditional IT, great for stable systems of record, is struggling to cope with newer, agile systems of engagement requirements coming straight from the business. In his session at 18th Cloud Expo, William Morrish, General Manager of Product Sales at Interoute, outlined ways of exploiting new architectures to enable both systems and building them to support your existing platforms, with an eye for the future. Technologies such as Docker and the hyper-convergence of computing, networking and sto...
Jul. 23, 2016 09:45 AM EDT Reads: 948
SYS-CON Events announced today that LeaseWeb USA, a cloud Infrastructure-as-a-Service (IaaS) provider, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. LeaseWeb is one of the world's largest hosting brands. The company helps customers define, develop and deploy IT infrastructure tailored to their exact business needs, by combining various kinds cloud solutions.
Jul. 23, 2016 09:15 AM EDT Reads: 995
The cloud market growth today is largely in public clouds. While there is a lot of spend in IT departments in virtualization, these aren’t yet translating into a true “cloud” experience within the enterprise. What is stopping the growth of the “private cloud” market? In his general session at 18th Cloud Expo, Nara Rajagopalan, CEO of Accelerite, explored the challenges in deploying, managing, and getting adoption for a private cloud within an enterprise. What are the key differences between wh...
Jul. 23, 2016 09:00 AM EDT Reads: 1,911
It’s 2016: buildings are smart, connected and the IoT is fundamentally altering how control and operating systems work and speak to each other. Platforms across the enterprise are networked via inexpensive sensors to collect massive amounts of data for analytics, information management, and insights that can be used to continuously improve operations. In his session at @ThingsExpo, Brian Chemel, Co-Founder and CTO of Digital Lumens, will explore: The benefits sensor-networked systems bring to ...
Jul. 23, 2016 08:15 AM EDT Reads: 1,430
SYS-CON Events announced today the Enterprise IoT Bootcamp, being held November 1-2, 2016, in conjunction with 19th Cloud Expo | @ThingsExpo at the Santa Clara Convention Center in Santa Clara, CA. Combined with real-world scenarios and use cases, the Enterprise IoT Bootcamp is not just based on presentations but with hands-on demos and detailed walkthroughs. We will introduce you to a variety of real world use cases prototyped using Arduino, Raspberry Pi, BeagleBone, Spark, and Intel Edison. Y...
Jul. 23, 2016 08:00 AM EDT Reads: 1,232
Large scale deployments present unique planning challenges, system commissioning hurdles between IT and OT and demand careful system hand-off orchestration. In his session at @ThingsExpo, Jeff Smith, Senior Director and a founding member of Incenergy, will discuss some of the key tactics to ensure delivery success based on his experience of the last two years deploying Industrial IoT systems across four continents.
Jul. 23, 2016 08:00 AM EDT Reads: 1,386
Much of IT terminology is often misused and misapplied. Modernization and transformation are two such terms. They are often used interchangeably even though they mean different things and have very different connotations. Indeed, it is somewhat safe to assume that in IT any transformative effort is likely to also have a modernizing effect, and thus, we can see these as levels of improvement efforts. However, many businesses are being led to believe if they don’t transform now they risk becoming ...
Jul. 23, 2016 08:00 AM EDT Reads: 1,040
SYS-CON Events announced today that Venafi, the Immune System for the Internet™ and the leading provider of Next Generation Trust Protection, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Venafi is the Immune System for the Internet™ that protects the foundation of all cybersecurity – cryptographic keys and digital certificates – so they can’t be misused by bad guys in attacks...
Jul. 23, 2016 07:45 AM EDT Reads: 1,043
Identity is in everything and customers are looking to their providers to ensure the security of their identities, transactions and data. With the increased reliance on cloud-based services, service providers must build security and trust into their offerings, adding value to customers and improving the user experience. Making identity, security and privacy easy for customers provides a unique advantage over the competition.
Jul. 23, 2016 07:45 AM EDT Reads: 949
Jul. 23, 2016 07:30 AM EDT Reads: 2,009
"Tintri was started in 2008 with the express purpose of building a storage appliance that is ideal for virtualized environments. We support a lot of different hypervisor platforms from VMware to OpenStack to Hyper-V," explained Dan Florea, Director of Product Management at Tintri, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Jul. 23, 2016 07:15 AM EDT Reads: 1,769
"There's a growing demand from users for things to be faster. When you think about all the transactions or interactions users will have with your product and everything that is between those transactions and interactions - what drives us at Catchpoint Systems is the idea to measure that and to analyze it," explained Leo Vasiliou, Director of Web Performance Engineering at Catchpoint Systems, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York Ci...
Jul. 23, 2016 07:15 AM EDT Reads: 1,835
For basic one-to-one voice or video calling solutions, WebRTC has proven to be a very powerful technology. Although WebRTC’s core functionality is to provide secure, real-time p2p media streaming, leveraging native platform features and server-side components brings up new communication capabilities for web and native mobile applications, allowing for advanced multi-user use cases such as video broadcasting, conferencing, and media recording.
Jul. 23, 2016 06:45 AM EDT Reads: 569
IoT generates lots of temporal data. But how do you unlock its value? You need to discover patterns that are repeatable in vast quantities of data, understand their meaning, and implement scalable monitoring across multiple data streams in order to monetize the discoveries and insights. Motif discovery and deep learning platforms are emerging to visualize sensor data, to search for patterns and to build application that can monitor real time streams efficiently. In his session at @ThingsExpo, ...
Jul. 23, 2016 06:30 AM EDT Reads: 641
There will be new vendors providing applications, middleware, and connected devices to support the thriving IoT ecosystem. This essentially means that electronic device manufacturers will also be in the software business. Many will be new to building embedded software or robust software. This creates an increased importance on software quality, particularly within the Industrial Internet of Things where business-critical applications are becoming dependent on products controlled by software. Qua...
Jul. 23, 2016 05:15 AM EDT Reads: 1,175
SYS-CON Events has announced today that Roger Strukhoff has been named conference chair of Cloud Expo and @ThingsExpo 2016 Silicon Valley. The 19th Cloud Expo and 6th @ThingsExpo will take place on November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. "The Internet of Things brings trillions of dollars of opportunity to developers and enterprise IT, no matter how you measure it," stated Roger Strukhoff. "More importantly, it leverages the power of devices and the Interne...
Jul. 23, 2016 04:30 AM EDT Reads: 1,932