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1Z0-900 exam Dumps Source : Java EE 7 Application Developer
Test Code : 1Z0-900
Test Name : Java EE 7 Application Developer
Vendor Name : Oracle
Q&A : 69 Real Questions
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Oracle Java EE 7 Application
Eclipse GlassFish 5.1 has been launched, and in contrast to the modest boost in edition quantity might suggest, this truly marks an immense milestone — not just for the GlassFish challenge itself, but for Java EE and moving Jakarta EE forward much more.
a glance on the history of GlassFish
GlassFish goes returned an extended approach. It started with the Kiva commercial enterprise Server, a Java utility server that was launched in January 1996 (for comparison, Java 1.0 itself changed into additionally released in that month!)
A 12 months later, Netscape acquired Kiva, and the Kiva enterprise Server became known as Netscape utility Server (NAS), which had its own pre-J2EE proprietary Java web APIs (such because the AppLogic framework, which was like Servlets and DAE for DB entry). NAS 2.1, which changed into attainable from early 1998, was a particularly well-known version. software servers have been reasonably expensive returned then, as Netscape application Server became round $35,000 per CPU.
In 1999, sun and Netscape (later AOL) formed an alliance, and Netscape software Server four, which was launched later that 12 months, included aid for an early edition of J2EE (Servlets, EJBs, JSPs, and JDBC). as an instance, JSP help changed into for the early edition 0.92.
Netscape utility Server 4 changed into chosen by the alliance to proceed development on as an alternative of merging it with the NetDynamics 5.01 software server solar had acquired previous. The name become once again changed, this time into iPlanet software Server (iAS). It changed into a part of the iPlanet suite of items jointly developed by using solar and AOL (Netscape).
iAS edition 6, from across the yr 2000, changed into a J2EE 1.2-suitable server, helping things comparable to Servlets 2.2, EJB 1.1, JSP 1.1 (in keeping with Jasper), and JTA 1.0 (in response to the Encina transaction display screen).
For edition 7, the identify become as soon as once more modified, now in full to "Stanford institution network Open net atmosphere application Server," aka solar ONE utility Server (S1AS, or SOAS). S1AS 7 turned into made obtainable for no cost when it become released in late 2002, although it became nevertheless closed source. It included a modified Tomcat four, which has an extended history as well. version 8 as soon as once more noticed a name exchange, when it grew to be solar Java system application Server (SJSAS) eight, which become J2EE 1.4 compatible. around this time duration, solar had also split off a derived version called the J2EE SDK (Reference Implementation, or RI), which became practically the core of the full software server, but in a while, this grew to become the Platform edition of SJSAS and the pure RI changed into only made accessible for TCK trying out.
Open-supply GlassFish challenge
In 2005, the open-supply GlassFish mission became begun, which was essentially fashioned via the donation of the source code for SJSAS 9 through solar and the TopLink persistence source code via Oracle (for the new JPA implementation in EE 5). In might also 2006, the Java EE 5-compatible and wholly open-source GlassFish 1.0 changed into launched. After some intermediate types, an important re-architectured version of GlassFish changed into launched in December 2009, GlassFish three.0. in the GlassFish source code internally, there are nevertheless many references to "V3," which refers to this important milestone.
Payara Server Is Born
After Oracle obtained sun, it still launched a version 3.1 of GlassFish in early 2011 with production points corresponding to clustering and load balancing, however after that unlock, it got surprisingly silent. In November 2013, Oracle announced they'd nevertheless guide the open source GlassFish but ended industrial aid. In authentic open-supply trend, this resulted in the Payara Server, which begun as a fork of GlassFish and added business help, common worm fixes, and common component updates. GlassFish 4 turned into launched to guide Java EE 7, but from a server structure aspect of view, it changed into a comparatively minor update, with broadly speaking the add-ons being up to date to their EE 7 models.
GlassFish Is Transferred to the Eclipse foundation
Late 2015/early 2016, it turns into quieter on the GlassFish front, and several articles appeared questioning Oracle's hobby in Java EE, peculiarly GlassFish. In August 2017, Oracle indeed announced that they didn't need to be primarily responsible for Java EE and GlassFish anymore. a little later, Oracle introduced that Java EE and all of the GlassFish code (GlassFish itself and all its constituent accessories) could be transferred to the Eclipse foundation. The identify of the task would turn into "EE4J," and in early 2018, the source code begins transferring to the "eclipse-ee4j" repo on GitHub.
As part of the deal between Oracle and Eclipse, it has decided to unencumber GlassFish 5.1, which is absolutely built by way of the Eclipse company from the transferred and relicensed components it is thoroughly Java EE eight certified.
Payara functions Involvement
Altogether, this transfer has taken lots of work. Payara features (the business in addition to people working for Payara) have supported this procedure from its early degrees. It included help from the preliminary cleansing of a couple of initiatives for the vetting of the switch. for example, in the Mojarra mission, there became rather somewhat of historic code and different artifacts that had been removed one after the other, as they would have been elaborate to vet. After the naked supply code transfer, several adjustments were essential to make the projects cleanly construct and later on to make them work on the Eclipse Jenkins situations (https://jenkins.eclipse.org). For this to occur, a huge number of jobs needed to be created, for every task to construct, stage, and finally to release them to Maven imperative. The element tracker at https://wiki.eclipse.org/Eclipse_GlassFish_5.1_Components_Release_Tracker gives some idea of which initiatives had been worried.
Payara in particular contributed to the transfer of the following API tasks and their associated implementations:
Altogether, it become a superb adventure working on this switch, however now and then, it was additionally fairly a bit of labor, chiefly when, in the starting, it wasn't clear in any respect the way to proceed with definite issues.
Now, despite the fact, this work is ultimately performed! GlassFish is thoroughly constructed on the Eclipse infrastructure, and today's unlock by using Eclipse marks yet another principal step in GlassFish's long adventure, starting at Kiva, passing via NetScape, starting to be up at sun, passing via Oracle, and now touchdown at Eclipse.
One Step closer to Jakarta EE 9
but it's now not only about GlassFish itself. With this switch accomplished, and each GlassFish and its components obtainable by the use of the Jakarta Maven coordinates, we are one main step nearer to beginning the work for Jakarta EE 9.
GlassFish 5.1 may also be downloaded here: https://tasks.eclipse.org/tasks/ee4j.glassfish/downloads
The implementation accessories are available from the org.glassfish Maven coordinates as before: https://repo1.maven.org/maven2/org/glassfish/leading/distributions/glassfish/5.1.0
The API jars now live under the brand new Jakarta Maven coordinates: https://repo1.maven.org/maven2/jakarta/
We at Payara would want to thank all companions from Jakarta EE who helped with the transfer. particular thanks go to Dmitry Kornilov for his tireless volume of help and suggestions on every occasion we acquired caught on whatever. Thanks, Dmitry!
The application is purchasable on Github
The utility is a revamped/remodeled edition of the current Java SE primarily based tutorial (personnel app). It was packaged as an Uber JAR together with the runtime (Tomcat)
We don’t deserve to be religious in regards to the deliver-you-personal-runtime mantra anymore, Java EE 7 (applied by Weblogic) container is supplied by means of Oracle software Container Cloud — now, all you need is a (truly) slim warfare file
light-weight Java EE warfare
Java EE requisites
To set the context, listed here are one of the crucial details round which Java EE components were used
JPA is used as a substitute of the DataSource APIs (and express JDBC code)
EJB is used as the facade layer to have interaction with the underlying facts store (Oracle DB the usage of JPA)
rest API provided using the de-facto JAX-RS standard
Servlet serves because the controller layer
CDI is used for Dependency Injection — injecting the EJB reference into the Servlet as well the JAX-RS endpoint
JSPs used as is (stay unchanged from the normal utility)
gaining access to Oracle Database Cloud to your Java EE software
Its very simple to entry Oracle Database Cloud (or Oracle MySQL Cloud) through your Java EE utility. customarily, you can deserve to setup records Sources in an app server dealer particular manner — you don’t should do this right here!
All you want is to declare dependency on Oracle Database Cloud as a service binding within the deployment.json along with the JNDI identify of the information source. this may create the required Weblogic information supply on the fly — which is referenced within the JPA persistence.xml
“memory”: “2G”,“instances”: 1,“services”: [ “type”: “DBAAS”,“name”: “OracleDBOnCloud”,“username”: <DB user>,“password”: <DB password>,“properties”: “jndi-name”: “jdbc/dbcs”]
<?xml version=”1.0" encoding=”UTF-eight" standalone=”no”?><persistencexmlns=”http://xmlns.jcp.org/xml/ns/persistence"xmlns:xsi=”http://www.w3.org/2001/XMLSchema-illustration" version=”2.1" xsi:schemaLocation=”http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"><persistence-unit name=”employees_PU” transaction-type=”JTA”><jta-records-supply>jdbc/dbcs</jta-facts-source><exclude-unlisted-courses>false</exclude-unlisted-classes><homes/></persistence-unit></persistence>
greater details within the documentation
Gartner App Platform report Calls Java EE obsolete
Researchers at Gartner dropped something of a bomb on the business Java neighborhood simply before the vacations within the variety of a new report by which analysts claim, among other issues, that Java EE is fading from relevance and those accountable for modernizing business application infrastructure should "increase a technique to deal with the obsolescence of Java EE and other three-tier software frameworks."
Entitled "Market ebook for utility platforms," the document changed into authored with the aid of veteran business watcher Anne Thomas and contributing analyst Aashish Gupta. As Gartner defines them, software systems give runtime environments for app good judgment and control the life cycle of an app or app element. and that they usually include development, monitoring, administration, and admin tools.
in their record, Thomas and Gupta allege that Java EE has not kept pace with architectural trends and digital company initiatives requiring new aspects and capabilities in software systems. these chargeable for modernizing app infrastructure, they suggest, should "maintain Java EE servers for existing legacy functions, however use lighter-weight Java frameworks for digital company software building initiatives or evaluate different language structures."
The analysts factor to a decline in business Java EE platform revenues in 2015 as evidence of "a transparent shift in the application platform market." They are expecting fewer than 35 p.c of all new business applications to be deployed in Java EE app servers by 2019.
The document's authors do permit that Java is still the trade's most accepted programming language, however declare that Java developers are demonstrating a transparent preference for lightweight frameworks over Java EE. They also renowned Oracle's effort to produce a brand new version of Java EE with "long-past due elements," but argue that, by the point Java EE eight is launched in late 2017, it'll already be two or three years at the back of the instances.
"Java EE is not a suitable framework for constructing cloud-native applications," they conclude. "Even Oracle and IBM appreciate this fact. both providers have shifted their strategic utility platform investments to PaaS and really good platform applied sciences."
I heard from lots of people within the enterprise Java neighborhood about this report. Reza Rahman, the former Oracle Java EE evangelist now leading the Java EE Guardians, spoke of he discovered the first-class of the analysis and evaluation in the file "shocking."
"essentially the most surprising is just how obsolete Gartner's views of Java EE are," he informed me. "they're obviously speakme about know-how from the J2EE period, ancient-faculty WebLogic and WebSphere, and ignoring every little thing that has took place within the evolution of Java EE since version 5. For years now, americans had been demonstrating at conferences in entrance of heaps of americans how Java EE is one of the best structures available. however Gartner appears to have decided to brush apart all that, ignoring all the work vendors have put into the platform. The WebSphere Liberty Profile, for example, is vastly different from the WebSphere of the J2EE days; you couldn't get a more light-weight runtime if you tried."
Rahman reminded me that the Java EE Guardians curate "surveys from relied on sources" on their net web page that music Java EE developments. "those surveys show that Java EE and its APIs continue to be probably the most established within the trade," he talked about. "The claims that Gartner is making are in fact opposite to the normal statistics that we now have."
Simon Maple, developer advocate at Java toolmaker ZeroTurnaround, sent me an electronic mail during which he addressed a few of the record's assertions. The claim that "Java EE has not saved tempo with modern architectural trends," for instance, is relatively meaningless, he observed, if you happen to keep in mind that a requisites-primarily based ecosystem like the one supporting Java EE will certainly not be as fast-changing as the non-average options. And for many americans, this is a superb factor.
"A necessities-primarily based approach skill they're capable of choose from a few providers who use the identical model, with confined migration ache," Maple observed. "requisites can additionally give a sustainable future for a know-how as many foremost corporations adopt and guide them."
it's also genuine that Oracle's "12 months of silence on the future of Java EE" changed into a big, non-technical contributor to the platform's recent snail-pace evolution, he observed. however that silence has been broken (thanks in no small part to the Guardians), and the technical gap between Java EE 7 and Java EE eight is closing. more importantly, Oracle has reinforced the future of Java EE with the aid of committing to the birth of both microservices and cloud capabilities in Java 8 and Java 9, and by means of unveiling the roadmap to delivery of Java EE 8 in 2017 and Java EE 9 a 12 months later.
"This refocus to up to date architectural tendencies and sooner paced delivery will put Java EE in a a great deal more desirable position with up to date wants," Maple stated, "notably when paired with specifications. The start of individual JSRs which incorporate the complete Java EE edition can with ease be introduced to utility servers, such as the modular IBM Liberty Profile, without the should look forward to the complete umbrella edition of Java EE 8 or 9. subsequently, it's tons sooner for application servers to bring this price to market than ever before.
For what it's price, inside sources at Oracle tell me that the company is actually (no definitely) going to carry the frequently-delayed Java EE 8 later this year, and, really, is putting the quintessential materials at the back of a 2018 unencumber of Java EE 9. If the latter occurs, it could be a list for any steward of business Java, past and present.
Chicago-based developer, blogger, and author Josh Juneau also thought the record neglected the marked when it talked about "the obsolescence of Java EE."
"The opposite is definitely happening," he observed in an e mail. "besides the fact that children Oracle took a 12 months off and delayed Java EE eight, issues are coming returned on target now, and we should still be seeing real progress in opposition t Java EE 8 quickly. moreover, the document leads one to believe that Java EE isn't located very well for developing microservices or for the cloud. That is not accurate, as there are a number of top notch options for establishing Java EE microservices. The key is that these APIs aren't yet standardized and made part of Java EE relevant. it is k although, as a result of in time we are able to work during the kinks of constructing microservices and standardize on a pretty good API. The identical goes for cloud and configuration.
"Java EE strikes at a slower tempo than options from vendors similar to Pivotal," Juneau introduced, "as it should. The point at the back of Java EE is not to be on the bleeding edge of expertise. fairly, it is to be the use of strong, tried-and-proper general options."
Maple admits that the Gartner analysts' commentary that "Java EE is not a suitable framework for constructing cloud-native purposes" is "an affordable assessment of the latest Java EE place."
"however, the longer term releases of Java EE do accept as true with this a key enviornment of its future route," he introduced. "sadly, the file does not go into any depth on this future route, nor the accelerated pace at which Oracle goals to carry it. I think it's irresponsible now not to mention these, or take them into account when the use of phrases like 'the obsolescence of Java EE.'"
Ondrej Mihályi, a Java EE trainer, consultant, and Senior features Engineer at Payara features in the Czech Republic, sent me an email just before Christmas with his reaction, which all started with "Wow!" and ended with his statement that the Gartner analysts "irresponsibly supply out of date guidance about the Java EE platform."
"They base most of their statements on a really common and ancient-college manner of constructing and operating Java EE purposes in 3-tier architecture, using Oracle WebLogic and IBM WebSphere servers as a reference," he referred to. "there's obviously a whole lot more in Java EE than these two, and even IBM presents another, tremendously modular WebSphere Liberty Profile server as an alternative to their flagship product. different vendors and tasks, like WildFly Swarm, sponsored via red Hat, or Payara Micro, derived from Oracle-sponsored GlassFish Server, prove that Gartner's declare that 'Java EE is a framework for constructing three-tier client/server applications' no longer displays the truth."
Mihályi expands his argument on his blog. He concludes it with this paragraph:
"instead of listening to Gartner, ask architects or experts whom you trust for concepts in accordance with their adventure -- or, with no trouble see for your self and evaluate. in case you explore past the 'common' Java EE servers outlined through Gartner, you are going to realize that Java EE is already relevant for designing cloud-native functions. The Java EE platform, with its full ecosystem, provides bendy easy methods to run purposes and is without difficulty extensible for any present traits, as well as any future tendencies to return."
Others have blogged about this record, together with purple Hat product manager John Clingan on his "middle-Me" weblog. He presents an in depth evaluation of the record, and concludes: "My primary problem with the Gartner document is that it looks to fully ignore the developments that Java EE companies have made beyond the normal Java EE APIs and runtimes, nor point out the MicroProfile efforts to increase microservices APIs for traditional Java EE builders."
Prague-primarily based Java developer Pavel Pscheidl offers "a short reaction to hate on Java EE in Gartner file" on his weblog. (it's in reality now not all that quick, which is good.) In his conclusion, he invitations the Gartner analysts to be part of him for a "quick online speak." "In a count of minutes, i will create a microservice-structure-pushed utility deployable and easily scalable within the cloud," he writes. "The very issue you declare Java EE is not capable of."
I also invited Thomas and Gupta to respond to all this, but haven't yet heard from them. When/if I do, i could will let you know what they must say.
update (1/four/17): Mark Little, vp of engineering at red Hat and JBoss CTO, has posted a thoughtful and interesting take on the Gartner report on his blog. Little allows for that Java EE will probably "move into history" at last, but within the brief-to-medium time period, "it'll evolve and proceed to have an effect on the next technology of technologies, just because the dinosaurs became the birds and points of CORBA evolved into J2EE." however he criticizes the record's lack of evidence for its assertions and failure of perception. Its authors present "one subjective statement after an additional, with no true try and justify them," he writes. And the file "fails miserably to differentiate between Java EE as a standard and the a considerable number of implementations." a further need to examine on this difficulty.
Posted with the aid of John k. Waters on 01/03/2017 at 12:30 PM
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Java EE 7 Application Developer
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The Java Platform Enterprise Edition 8 or Java EE 8 was released last year, along with Java 9 in September 2017. If you are a Java developer or someone who wants to learn Java EE for web development and looking for some courses to kickstart your learning, then you have come to the right place. In this article, I am going to share five awesome Java EE courses that cover both Java EE 7 and Java EE 8. If you are wondering what Java EE is and what Java EE 8 brings into the table, let me give you a brief overview of Java EE.
The Java EE is actually a collection of Java technologies and APIs designed to support "Enterprise" Applications, which can generally be classified as large-scale, distributed, transactional and highly-available applications designed to support mission-critical business requirements.
It contains some of the most popular Java technologies you have heard of, like Servlet, JSP, EJB, JAX-RS, JDBC, JNDI, JMX, Java Mail, JTA, JTS, JAF, XML, etc.
Also, the new version of Java EE 8 brings support for Java Servlet 4.0 API with HTTP/2 support, enhanced JSON support including a new JSON binding API, a new REST Reactive Client API, Asynchronous CDI Events, a new portable Security API, Server-Sent Events support (Client & Server-side), and — most importantly — support for Java SE 8 new features (e.g. Date and Time API, Streams API, and annotations enhancements).
Another important thing to know about Java EE 8 was the last release of Java EE from Oracle, and now, Oracle has moved Java EE to an open-source foundation (Eclipse Foundation) and it's called Jakarta EE.
Why did this happen? Well, Oracle thought that moving into an open source foundation would increase developers participation, but they wanted to control the Java trademark, hence Java EE becomes Jakarta EE.
Best Java EE Courses for Beginners and Experienced Devs
Until a couple of years ago, I personally liked to read and learn from books, but after I joined a couple of courses on Udemy and Pluarlsight (Netflix for software developers), my perception changed. Now, I start with an online course and then read a book to further solidify my knowledge.
Now that you know what Java EE is, let's get into these courses and help you learn Java EE. If you are a Java developer working in the Java EE space, then you can benefit from these courses.
Java EE 7 Fundamentals
Even though Java EE 8 is the latest version, Java EE 7 is still the most popular Java EE version. Most companies are running their enterprise application on Java EE 6 and Java EE 7 with migration to Java EE 8 slowly taking place.
If you happened to work on the existing Java EE 7 application and wanted to better maintain your application, then this is the perfect course for you.
In this course, you will learn about how the Java EE platform has progressed through its history to the modern platform it is today, the foundations of building a web application in Java EE, and how to interoperate Java EE applications with external services
It's also one of the most comprehensive courses, created by Antonio Goncalves, who is an authority on Java EE space and also the author of best-seller Beginning Java EE 7 book.
The Java EE Course: Build a Java EE App From Scratch
This is a great course for all the developers who love project-based learning — I know I certainly do. As per my personal experience, I learn most when I do a project and apply whatever theory and practical I have learned from the course and that's why I recommend this course.
You will build a full Java EE airline management application from scratch and learn Java EE theory and practice during the process.
You will also learn about resource and dependency injections in Java EE, which is important for writing clean code, which is both easier to extend and test.
Java EE Made Easy: Patterns, Architecture, and Frameworks
This is probably the most popular Java EE course on Udemy, with more than 5000 students already enrolled on it.
The course provides a nice overview of all the Java EE technologies, like JPA, JDBC, ORM, JNDI, EJB, JTA, DTO, VO, JAXB, JAX-RS, JAX-WS, AOP, and the dependency injection.
And, more importantly, you will get an overview of important Java EE patterns, like Front Controller, View Helper, Composite View, Context Object, Intercepting Filter, Domain Model, Facade, DTO/VO, DAO — Data Access Object, and Service Activator.
The patterns are also grouped by the layer they are used in, which makes it easy for you to remember and use them.
Overall, this is a perfect course for someone who is developing a web application with Java EE and wants to understand the big picture, as well as experienced Java developers who want to master Java EE patterns.
Java EE With Vaadin, Spring Boot, and Maven
This is one of the best and most modern Java EE course you will find on Udemy. As the title suggests, the course will teach you quite a few technologies, like Vaadin Framework, Spring, Spring Security, Spring Boot, Maven, JPA, JBoss — WildFly, etc.
But, most importantly, it follows a top-down approach, i.e. it first shows you the project you are going to build and then explains how you will build that by teaching each and every technology involved in creating that project.
Even if you are familiar with Spring and Maven, you will improve your understanding of these platforms.
It's also a CA-comprehensive course, with more than 18 hours of content. You will learn a lot of things like design patterns, best coding practices, and how to create a maintainable, robust software.
As I said at the start of this post, the final project is great and will teach you a lot. It will also give you a chance to apply whatever you have learned from the course.
What's New in Java EE 8
Java EE 8 has brought some really cool features like Servlet 4.0 API, HTTP 2.0 support and a new JSON binding API. Apart from that, it also supports those ultra useful Java SE 8 features, like Stream and new Date and Time API, and there is no better way to learn those feature in quick time than joining this course.
In this course, you'll first learn about the brand new JSON-B, an API for binding Java objects to JSON and vice versa. With very little code, you'll explore how you can generate and consume JSON without any third-party libraries
You will also explore Java's completely new Security API, improving upon the hard-to-use and often container-specific security mechanisms. Additionally, you'll also learn about major updates to Java EE technologies in this release, such as JPA 2.2, CDI 2.0 and JSF 2.3 — all in just under two hours!
If you prefer the book and want a more comprehensive coverage, then you can also check out the Java EE 8 CookBook, one of my favorite how-to guides to learn Java EE 8.
That's all about some of the best Java EE courses to learn online. If you think Java EE is dead, then you are wrong, it's very much alive and kicking with the new Java EE 8 release. There are also tons of companies using Java EE and they are not going anywhere.
Useful Resources for Programmers
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Top 5 Courses to Learn Spring Boot in 2018
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5 Courses to Learn React Native in 2018
Top 5 Courses to Learn Python in 2018
Thanks for reading this article! If you find these Java EE courses useful, then please share with your friends and colleagues. If you have any questions or feedback, then please drop a note below.
Red Hat, Inc. (NYSE: RHT), the world’s leading provider of open source solutions, today announced that the Red Hat OpenShift Platform-as-a-Service (PaaS) now supports Java Enterprise Edition 6, powered by the company’s JBoss application server, one of the leading open source Java Enterprise Edition (EE) application servers that forms the basis for JBoss Enterprise Application Platform. With this new integration, OpenShift becomes the first PaaS in the industry to deliver Java Enterprise Edition (EE) 6, simplifying how application developers build and deploy Java in the cloud. OpenShift is a free PaaS for developers who leverage open source. Developers looking for a faster on-ramp to the cloud with built-in management and auto-scaling capabilities can use OpenShift so they can focus on coding mobile, social and enterprise applications while leaving stack setup, maintenance and operational concerns to a trusted hosted service. First announced at the Red Hat Summit in May 2011, OpenShift redefined the PaaS space by offering a broad choice of supported languages, frameworks, databases and clouds, including Ruby, Python, Perl, PHP, Java EE, Spring, MySQL, SQLite, MongoDB, MemBase and Memcache, all open source, helping developers avoid getting locked into any particular technology or platform. OpenShift Java EE 6 support is based on JBoss Application Server 7, an open source JBoss Community project. Red Hat’s JBoss application server forms the foundation for the company’s JBoss Enterprise Application Platform 6, the next major release of the application platform, which is scheduled for release in early 2012. JBoss application servers are Java EE-certified, enabling a cloud-ready architecture with a lightweight footprint and dynamic container model to better support multi-core processing and multi-tenancy. The combination of OpenShift with JBoss application server now allows Java EE to be more easily scaled, managed and monitored in the cloud. By delivering JBoss in OpenShift, developers can take advantage of Java EE 6, one of the biggest advancements in Java in over ten years. Java EE 6 includes Content and Dependency Injection (CDI), a standards-based, modern programming framework that makes it easier for developers to build dynamic applications and picks up where some proprietary frameworks left off. CDI offers a more robust set of capabilities including eventing support and typing, delivering optimal flexibility for programmers. Additionally, as an open standard, more vendors support and contribute to the specification, allowing developers to have their choice of programming approaches without vendor lock-in. “While developers and enterprises have long been interested in the time to market advantages offered by PaaS platforms, the difficulty of migrating existing applications to incompatible frameworks has slowed adoption,” said Stephen O’Grady, principal analyst and co-founder of RedMonk. “With EE6 available by integrating the JBoss application server technology, Red Hat’s OpenShift platform is aimed at allowing enterprises to transition their existing Java EE applications and skills to the cloud with zero friction.” “OpenShift today provides differentiation in the industry as the first on-ramp to get Java EE 6 applications into the cloud,” said Brian Stevens, CTO and vice president, Engineering at Red Hat. “With this, Red Hat has solved multi-tenant problems with its expertise in providing full-stack support. Combining our technology expertise from the hypervisor through the operating system and middleware to the cloud, our technology is integrated to allow for easier development of applications with free Java EE in PaaS. This is an efficiency unique to Red Hat through OpenShift today.” To learn more about this announcement, join Red Hat executives for a webcast to be broadcast on August 10, 2011 at 12pm ET. To join the live webcast or to watch the replay, visit http://www-waa-akam.thomson-webcast.net/us/dispatching/?event_id=ae1914cbd89923598c72bce74f924cfb&portal_id=af9b227bf07c733390c2738ee0330646. To access OpenShift, visit https://openshift.redhat.com. To download JBoss application servers, including JBoss Application Server 7, visit http://www.jboss.org. For more information about Red Hat, visit http://www.redhat.com. For more news, more often, visit http://www.press.redhat.com.
What good is an application if its just lying there on your laptop ? It needs to deployed to a place where it can be used — in the modern era, ‘this place’ is the Cloud
In addition to deploying it to the cloud easily, you should also be iterate over the development process to ensure the path from your local development environment to the cloud is hassle free and seamless — continuous integration and deployment can help us achieve this
In this blog, we will
take an existing Java EE 7 application
setup a continuous integration and deployment pipeline using Oracle Developer Cloud service, and,
leverage its integration with Oracle PaaS ecosystem to deploy it to Oracle Application Container Cloud
Here is a another blog which introduces Java EE 7 support on Oracle Application Container Cloud
Create a new project in Developer Cloud Service
More details in the documentation
Import source code into Developer Cloud Service
I already have the sample app source in my Github repo, so let’s just import it
Here is the documentation
You will see the project contents once the import process completes
Build & Deployment configuration
Create a Build Job
Lets configure Developer Cloud to create a build job which will consume our source code, compile and build it and finally convert it into a ZIP file, which can then be pushed to Application Container Cloud
Details in the documentation
New build job
Let’s make sure we point our job to the Git repository
Job to Git repo link
and schedule Git repo polling to pick up any (code) changes we push there
Poll the Git repo for changes
Add a Maven build step
Maven build step
mvn clean install
We need to persist/archive our build artifact (WAR file) for it to be used by for subsequent (deployment) tasks
Archive the WAR
That’s it! Just run the build job now
Time to run
Once the build completes, you can verify that the artifact(s) has been created
Configure the Deployment
Now we can create the deployment job which will push our WAR file to the cloud
Details in the documentation
Start with a new configuration
brand new deployment job
Start with the basic information
Basic deployment info
and then add the details of the deployment descriptors — manifest.json and deployment.json.. nice and easy!
ACCS deployment descriptors
Hit Save and now we’re ready to deploy!
On our way!
The same should be reflected in Application Container Cloud as well
Deployment in progress
Test the application
Access the application endpoint — curl <accs_app_url>/hello e.g. curl https://javaeehelloworld-ocloud109.apaas.us2.oraclecloud.com/hello
You should see a response similar to the following
CI/CD in action
Our application is now deployed, let’s see how the CI/CD works
Clone the code from the Oracle Developer Cloud service Git repository onto your local machine
git clone <git_repo_url>
e.g. git clone https://developer.us2.oraclecloud.com/developer45858-ocloud109/s/developer45858-ocloud109_demo_22222/scm/accs-javaee-hello-world.git
Make a code change and push your changes back to the Git repo
cd accs-javaee-hello-worldgit commit -am "new attribute added" git push -u origin master
You should see the same reflected in Oracle Developer Cloud service
updated Git repo
Thanks to the build which we had previously configured, this will
automatically kick off the build job, and this will
initiate the deployment job and push the service (update in this case) to Oracle Application Container Cloud
Access the application again — curl <accs_app_url>/hello e.g. curl https://javaeehelloworld-ocloud109.apaas.us2.oraclecloud.com/hello
Notice the new attribute (hostname) which was added to the code
That’s it for this blog post ! See how easy it was to setup a CI/CD pipeline for a Java EE application to take it from your laptop -> the cloud
Don’t forget to…
check out the tutorials for Oracle Application Container Cloud — there is something for every runtime!
other blogs on Application Container Cloud
The views expressed in this post are my own and do not necessarily reflect the views of Oracle.
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