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Huge Enterprise Systems Architecture Design with Java EE

Rakuten Group, Inc.
Rakuten Group, Inc.

The document outlines key aspects of enterprise systems architecture design using Java EE, touching on its specifications, application design, and the roles of various components like JSF, EJB, and CDI. It emphasizes the suitability of Java EE for large-scale, mission-critical systems and the importance of modern development practices, including the use of IDEs and security measures. Moreover, it provides a historical perspective on Java EE specifications and recommendations for selecting appropriate application servers.

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@HirofumiIwasaki 1 Huge Enterprise Systems Architecture Design with Java EE Oct 22, 2016 Hirofumi Iwasaki Group Manager, Rakuten Card Co., Ltd.
@HirofumiIwasaki 2 Speaker Biography  Hirofumi Iwasaki – Group Manager – New System Technology Group, New System Development Department, Rakuten Card Co., Ltd. (seconded from Rakuten, Inc.)  Carrier – 17 Years of experience in planning, designing and implementation of Japanese financial, manufacturing and public enterprise system with emphasis in Java EE and .NET enterprise middleware.  Opus, Lectures, etc. – Conferences: JavaOne 2015, 2014, Oracle OpenWorld 2014, Java Day Tokyo 2016 - 2014, JJUG CCC Spring & Fall (2014), WebLogic roundtable (2012-2013), Rakuten Tech Conference 2016 – 2013, etc. – Book: デベロッパーのキャリアと働き方を語ろうVol.1 (2016) – Magazine: 日経コンピュータ 2015年8月号 @IT (2005-2010), CIO Magazine (2009), IT Architect (2005-2009), Web+DB Press (2005), Java World (2001-2004), etc.
@HirofumiIwasaki 3 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
@HirofumiIwasaki 4 About the Enterprise Systems  Enterprise systems (ES) are large-scale application software packages that support business processes, information flows, reporting, and data analytics in complex organizations. -(from Wikipedia "Enterprise Systems")
@HirofumiIwasaki 5 Enterprise Software on Enterprise Systems  Enterprise software, also known as enterprise application software (EAS), is computer software used to satisfy the needs of an organization rather than individual users. Such organizations would include businesses, schools, interest-based user groups, clubs, charities, or governments.[1] Enterprise software is an integral part of a (computer-based) information system. Enterprise Systems Enterprise Software
@HirofumiIwasaki 6 Non-Functional Requirements of Enterprise Software Enterprise Software ACID Transaction Management Distributed Transaction Management Efficient Database & MQ Connectivity Variety of Communication Protocols Frameworks of Web Systems and Mobile Apps Efficient Development Environment Security Management, etc.
@HirofumiIwasaki 7 Custom? or Packaged? on Enterprise Systems Packaging Software Approach Custom Software Approach  For strong area of the enterprise.  Specialties of the competitiveness, depends on each industries.  For non strong area of the enterprise.  E.g. HR, accounting, information sharing systems, etc.
@HirofumiIwasaki 8 Custom? or Packaged? on Enterprise Systems Packaging Software Approach Custom Software Approach  For strong area of the enterprise.  Specialties of the competitiveness, depends on each industries.  For non strong area of the enterprise.  E.g. HR, accounting, information sharing systems, etc.
@HirofumiIwasaki 9 For Start Making Custom Enterprise Software Maturity for Huge Mission Critical Systems OpenStandard,CommunityPower Microsoft .NET Framework Java EE Open Source Platform like PHP, etc. Vendor Locked-In Platform, like ABAP, etc.
@HirofumiIwasaki 10 For Start Making Custom Enterprise Software Maturity for Huge Mission Critical Systems OpenStandard,CommunityPower Microsoft .NET Framework Java EE Open Source Platform like PHP, etc. Vendor Locked-In Platform, like ABAP, etc.
@HirofumiIwasaki 11 Summary: Select Java EE for Enterprise Apps is even better platform for  Huge, mission critical systems.  Vendor free.  Larger community power.  Amount of engineers.
@HirofumiIwasaki 12 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
@HirofumiIwasaki 13 Java EE Overview  Java EE = Java Platform, Enterprise Edition  Java specification for enterprise systems, not light weight systems. – For other matured mission critical systems. – Especially for financial industry systems.
@HirofumiIwasaki 14 Java EE Spec & App Servers  Java EE specification is managed by Java community process (JCP).  Many vendors are making Java EE app server not only for commercial usage but also for free. Specification Java EE App Servers
@HirofumiIwasaki 15 History of Java EE Specification 1999 2001 2003 2006 2009 2013 2017 J2EE 1.2 (Dec, 1999) J2EE 1.3 (Sep, 2001) J2EE 1.4 (Nov, 2003) Java EE 5 (May, 2006) Java EE 6 (May, 2006) Project JPE Java EE 7 (June, 2013)
@HirofumiIwasaki 16 1999 2001 2003 2006 2009 2013 Java EE 7 Svrs J2EE 1.2 Servers Pre-J2EE J2EE 1.3 Servers J2EE 1.4 Servers Java EE 5 Servers Java EE 6 Servers 2017 History of Java EE Spec Servers
@HirofumiIwasaki 17 Combination of Java EE and Java SE J2EE 1.2 (1999) J2EE 1.3 (2001) J2EE 1.4 (2003) Java EE 5 (2006) Java EE 6 (2009) Java EE 7 (2013) J2SE 1.2 (1998) J2SE 1.3 (2000) J2SE 1.4 (2002) J2SE 5 (2004) Java SE 6 (2006) Java SE 7 (2011) Java SE 8 (2014) One EE specification, with latest SE version Java EE 7 relies on SE 7 Sun Microsystems Oracle
@HirofumiIwasaki 18 Enterprise Systems Web Front End Business Logic Back End
@HirofumiIwasaki 19 Enterprise Systems and Java EE Specifications JSF Servlet Web Front End Business Logic JTA CDI EJB Back End JDBCRMI- IIOP JAX- RS JPA JMS JAX- WS Web Socket JBatch Java Mail
@HirofumiIwasaki 20 Standardization History of Java EE J2EE 1.2 J2EE 1.3 J2EE 1.4 Java EE 5 Java EE 6 Java EE 7 Java EE 8 JDBC EJB/JTA/XA/IIOP Servlet/JSP JMS RMI SOAP JPA JSF/Facelet REST CDI JavaBatch Project JPE or earlier WebSocket … … WebLogic Hibernate Spring Framework
@HirofumiIwasaki 21 New Specs of Java EE J2EE 1.2 J2EE 1.3 J2EE 1.4 Java EE 5 Java EE 6 Java EE 7 Java EE 8 JDBC EJB JSP JMS RMI SOAP JPA JSF/Facelet REST CDI JavaBatch Project JPE or earlier WebSocket EJBEntityBean JSP … …
@HirofumiIwasaki 22 2017: Java EE 8 – Now RevisingOriginalPlan: FinalRelease: H12017 RevisedPlan: FinalRelease: Q32017 Early Draft Public Review Propos ed Final Draft Final Release 2016 2017 Q3, 2017 1H, 2017, canceled Public Survey Propos ed Final Draft Final Release
@HirofumiIwasaki 23 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
@HirofumiIwasaki 24 Application Design with Java EE: Keywords App Server and Version Vendor Selection Java EE Version Commercial or Free Product Roadmap
@HirofumiIwasaki 25 Rich Clients Web Presentation Business Logic (no presentations) Typical Enterprise Systems DBs MQ Connection Other Servers EMail MTA Call Call Call Call Call Call Data Access Messaging
@HirofumiIwasaki 26 Rich Clients Web Presentation Business Logic (no presentations) Typical Usage of Java EE 7 JPA EJBJSF DBs Java FX JTA Automatic Transaction JMS MQ Connection RMI-IIOP Other Servers EMail MTAJavaMail JAX Call Call Call Call Call Call Data Access Messaging CDI
@HirofumiIwasaki 27 Use Latest Product, Latest Spec I'll start my new project with Java EE. Which version should use? Use latest product version, with latest Java EE specification. Because latest version is free of EOL, greater APIs for ease of development.
@HirofumiIwasaki 28 GlassFish & Payara WebLogic WebSphere JBoss Japan Group App Engine Copy Java EE World and Others Apache Group Google Interstage Cosminexus Microsoft .NET
@HirofumiIwasaki 29 Details of Java EE Application Servers Vendor App Server EE 1.4 (2003-) EE 5 (2006-) EE 6 (2009-) EE 7 (2013-) Open Source GlassFish / Payara - 2.x 3.x 4.x Oracle WebLogic 9.x 10.x 12.1 12.2 IBM WebSphere 5.1-6.x 7.0 8.5 8.5.5 Red Hat JBoss 4.x 5.1 6.0 7.0 Red Hat WildFly - - - 8.0-10.0 Hitachi Cosminexus 7.x 8.x 9.x 10.0 TmaxSoft JEUS 5.0 6.0 7.0 8.0 Fujitsu Interstage 9.0,9.1 9.2-11.0 11.1 - Apache Geronimo - 2.x 3.x - Apache TomEE - - 1.x -
@HirofumiIwasaki 30 Commercial or Free? Is heavily SLA required? Is open source required? Some supports required? Select Commercial Products Select Free Products Is there few initial cost limitation? Is DIY acceptable?Is long running upgrading path required? WebLogic WebSphere JBoss Cosminexus /Payara
@HirofumiIwasaki 31 Summary: Select Your Appropriate Server Select the appropriate Java EE server.  Vendor  Applied Java EE version  Free or Commercial  Commercial support required or not
@HirofumiIwasaki 32 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
@HirofumiIwasaki 33 IDE: Keywords IDE or Not Repository Building System Productivity Development Standard
@HirofumiIwasaki 34 In 1990’s – early 2000’s “Great Engineers” never use such IDEs! Instead, they use text editor! *Is Japanese special habit not to use IDEs?
@HirofumiIwasaki 35 “Great Engineer” never use such IDEs! Instead, use text editor! We’re now living in 2010’s NEVER Not good for productivity on enterprise development. Apply the latest technologies! *Is Japanese special habit not to use IDEs?
@HirofumiIwasaki 36 Over 10,000 classes in real large systems Crazy amount of source codes!
@HirofumiIwasaki 37 Manage tons of codes with modern IDE
@HirofumiIwasaki 38 Summary: modern IDE for Java EE
@HirofumiIwasaki 39 De-Facto standard building tool  Determined with “pom.xml”  Automatic library downloading  Ease of use, script not supported  Determined with “build.gradle”  Automatic library downloading  Complex scripting supported
@HirofumiIwasaki 40 Three major IDEs support Maven in default setting *Additional plugin required * * “New Project” Dialogs:
@HirofumiIwasaki 41 “Special Project Files” are not required anymore with Maven Maven Project are used by these three IDEs
@HirofumiIwasaki 42 Summary: recommendation to make Java EE project Make project with , Enjoy programming with (Choose anything you want)
@HirofumiIwasaki 43 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
@HirofumiIwasaki 44 Web Front-End: Keywords Security JavaServer Faces (JSF) Page Flow HTTP Facelet Post Back
@HirofumiIwasaki 45 Rich Clients Web Presentation Business Logic (no presentations) Typical usage of Java EE 7 JPA EJBJSF DBs Java FX JTA Automatic Transaction JMS MQ Connection RMI-IIOP Other Servers EMail MTAJavaMail JAX Call Call Call Call Call Call Data Access Messaging CDI
@HirofumiIwasaki 46 Selection of the front-end frameworks of server side Java  JavaServer Faces – Genuine Java EE front-end framework – Many additional components like “PrimeFaces”. – View-based operation – Security countermeasures already implemented like XSS, XSRF.
@HirofumiIwasaki 47 <Facelet> View 1 Backing1 - fields + load() + action() <Facelet> View 2 Backing2 - fields + load() + action() <Facelet> View 3 Backing3 - fields + load() + action() Front View & Backing Bean Per View Operation
@HirofumiIwasaki 48 Paradigm Changes: From 2000's to 2010's <<JSP>> View1 <<JSP>> View 2 Action1 + action() <<JSP>> View 3 Action2 + action() ActionForm1 - fields + validate() ActionForm2 - fields + validate() Operate Action Build Next View Operate Action Build Next View <Facelet> View 1 Backing1 - fields + load() + action() <Facelet> View 2 Backing2 - fields + load() + action() <Facelet> View 3 Backing3 - fields + load() + action() Front View & Backing Bean 1.x
@HirofumiIwasaki 49 Older JSP vs. New Facelet JavaServer Pages Facelet Compile Java Servlet Work HTML Rendering HTML Rendering Real-time Interpreting & Work No Compile, Rapid Dev. Re-Deploy & Compile Harmful Dev. Procs Check Fix Fix Reload
@HirofumiIwasaki 50 Security Countermeasures and JSF Cross Site Scripting (XSS) Cross Site Request Forgery (CSRF) Output values to HTML with escaping. Requirement Output one time token for next page transitions. JSF Automatically operated Automatically operated
@HirofumiIwasaki 51 Summary: Recommendation for the Java EE 7 Front-End Use For your web front-end, Implement with Facelet.
@HirofumiIwasaki 52 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
@HirofumiIwasaki 53 Business Logic: Keywords Enterprise JavaBeans (EJB) Context and Dependency Injection (CDI) JBatch Transaction Management Container Managed Transaction (CMT)
@HirofumiIwasaki 54 Rich Clients Web Presentation Business Logic (no presentations) Typical usage of Java EE 7 JPA EJBJSF DBs Java FX JTA Automatic Transaction JMS MQ Connection RMI-IIOP Other Servers EMail MTAJavaMail JAX Call Call Call Call Call Call Data Access Messaging CDI
@HirofumiIwasaki 55 Two Solutions for Realtime Logics: EJB or CDI For Heavy & Mission-Critical Business Logics CDIEJB Context and Dependency Injection For Light-weight Logics, Rapid, Ease of Development
@HirofumiIwasaki 56 Review: What’s EJB? Why EJB? EJBClient 1. Remote Invocation EJB 2. Automatic Transaction Management Database (BEGIN) (COMMIT) EJB EJB EJB EJB Instance Pool Activate 3. Instance Pooling for Faster Operation RMI-IIOP SOAP REST Web Socket EJB Client 4. Security Management
@HirofumiIwasaki 57 Review: CDI – Light Version of EJB CDIClient 1. Remote Invocation CDI 2. Automatic Transaction Management Database (BEGIN) (COMMIT) EJB EJB Instance Pool Activate 3. Instance Pooling for Faster Operation RMI-IIOP SOAP REST Web Socket Client 4. Security Management Few Functions, Faster Deployment
@HirofumiIwasaki 58 POJO Java EE ServerJava EE Server Java Batch How Design the Batch Logics? Choice 1: Use EJB/CDI, Call via EJB/CDI Remote from Outside EJB Batch Batch Kicker Call Choice 2: Use Java Batch Framework, Call from Outside Batch Kicker Call Choice 3: Micro Service (Java EE 9 style) Batch Kicker Call Full automatic transaction, Able to use embedded server. If the standard templates suitable for your app, try it. Not released yet, but you can try with Payara Micro now.
@HirofumiIwasaki 59 Summary: Recommendation for the Java EE 7 Front-End Use for your real-time logics, Consider batch logics design. CDI
@HirofumiIwasaki 60 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
@HirofumiIwasaki 61 Data Access: Keywords Java Persistence API (JPA) Data Access Object (DAO) JDBC Auto Generation Java Persistence Query Language (JPQL)
@HirofumiIwasaki 62 Rich Clients Web Presentation Business Logic (no presentations) Typical usage of Java EE 7 JPA EJBJSF DBs Java FX JTA Automatic Transaction JMS MQ Connection RMI-IIOP Other Servers EMail MTAJavaMail JAX Call Call Call Call Call Call Messaging Data Access CDI
@HirofumiIwasaki 63 About JPA – Java Persistence API Java Persistence API (from Java EE 5)
@HirofumiIwasaki 64 JPA – Simple Database Mapper Relational Database (E-R Diagram) One by One JPA Entity (Class Diagram) Auto Generate With Bean Validation
@HirofumiIwasaki 65 JPA – Simple Database Mapper JPA Entity JPA Data Access Object (DAO) Auto CRUD to Database Access to RDB
@HirofumiIwasaki 66 public List<Member> findMemberByName(String name) { String queryString = "SELECT a FROM Member m " + "WHERE m.name = LOWER(:name)"; Query query = getEntityManager().createQuery(queryString); query.setParameter("name", name); List<Member> result = query.getResultList(); } JPA Custom Queries – JPQL and Criteria Query JPQL: Criteria Query: public List<Member> findMemberByName(String name) { CriteriaBuilder builder = this.em.getCriteriaBuilder(); CriteriaQuery query = builder.createQuery(); Root<Member> member = query.from(Member.class); query.select(member); query.where(builder.equal(member.get(”name"), name)); List<Member> result = this.em.createQuery(query).getResultList(); }
@HirofumiIwasaki 67 JTA Transaction Management Java EE Application EJB Business Logic Why You Should Not Use Raw JDBC in Java EE? Java EE Application Server Java VM Connection Pool EJB Object Pool Thread Pool Self-Managed JDBC Connection JPA Entity Manager JNDI JDBC Driver Manager RAW ? ? No Global Transaction No Connection Management
@HirofumiIwasaki 68 Combination with EJB Session Bean Business Logic (no presentations) JPA EJB DBs JTA Automatic Transaction Call Full automatic transaction management with EJB session bean JPA entity manager automatically join the CMT of EJB Data Access
@HirofumiIwasaki 69 Summary: Use JPA, Instead of Raw JDBC. Apply JPA ordinarily for data, within the EJB / CDI Container Managed Transaction (CMT)
@HirofumiIwasaki 70 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
@HirofumiIwasaki 71 Connectivity: Keywords RMI over IIOP (RMI-IIOP) Web Services JAX-WS Web Socket + JSON Remote Method Invocation (RMI) REST + JSON Global Transaction (XA)
@HirofumiIwasaki 72 Review: What’s EJB? Why EJB? EJBClient 1. Remote Invocation EJB 2. Automatic Transaction Management Database (BEGIN) (COMMIT) EJB EJB EJB EJB Instance Pool Activate 3. Instance Pooling for Faster Operation RMI-IIOP SOAP REST Web Socket EJB Client 4. Security Management
@HirofumiIwasaki 73 Supported protocols of Java EE 7 (EJB) Protocol Supported From Annotation Client Stub Value Marshaling Global Transaction RMI-IIOP J2EE 1.2 @Remote in remote interface Remote interface with auto generate Auto XA Supported SOAP Java EE 5 @WebService Auto generate in development Auto N/A REST Java EE 6 @GET, @POST, etc. (Nothing special) Work with JSON or something (string base) N/A Web Socket Java EE 7 @ServerEndpoint @ClientEndpoint with auto generate Work with JSON or something (string base) N/A
@HirofumiIwasaki 74 Global Transaction Management with XA Protocol For heavy transaction: consider RMI-IIOP EJB Session BeanClient RMI-IIOP Other System’s EJB Database Other Enterprise Information Systems IIOP AUTO BEGIN AUTO COMMIT
@HirofumiIwasaki 75 For light-weight usage: consider Web Socket / REST + JSON Local Transaction Management EJB Session BeanClient Web Socket or REST Database AUTO BEGIN AUTO COMMIT Ultra-Fast, Ease of Dev.
@HirofumiIwasaki 76 EJB Session Bean with RMI-IIOP and Web Socket @Stateless @Remote @ServerEndpoint(value = "/memberlogic") public class MemberLogic implements MemberLogicRemote { @OnMessage public String register(String message, Session session) { // WRITE TRANSACTIONAL LOGICS HERE! return xxxx; } } EJB RMI-IIOP Web Socket Some Clients Transactional Processing for RMI-IIOP for Web Socket for RMI-IIOP for Web Socket
@HirofumiIwasaki 77 Summary: Recommendation of Protocols Select the RMI-IIOP for heavy transactional distributed systems. Select the Web Socket or REST for system that requires light-weight and faster speed.
@HirofumiIwasaki 78 Summary Enterprise systems require many mission critical basement. Java EE is one of the best platform on the aspect of the vendor free. Consider many critical points when Java EE design & development start.
@HirofumiIwasaki 79 Contact Hirofumi Iwasaki (@HirofumiIwasaki)
Huge Enterprise Systems Architecture Design with Java EE
We’re Hiring!! Rakuten.Careers

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Huge Enterprise Systems Architecture Design with Java EE

  • 1. @HirofumiIwasaki 1 Huge Enterprise Systems Architecture Design with Java EE Oct 22, 2016 Hirofumi Iwasaki Group Manager, Rakuten Card Co., Ltd.
  • 2. @HirofumiIwasaki 2 Speaker Biography  Hirofumi Iwasaki – Group Manager – New System Technology Group, New System Development Department, Rakuten Card Co., Ltd. (seconded from Rakuten, Inc.)  Carrier – 17 Years of experience in planning, designing and implementation of Japanese financial, manufacturing and public enterprise system with emphasis in Java EE and .NET enterprise middleware.  Opus, Lectures, etc. – Conferences: JavaOne 2015, 2014, Oracle OpenWorld 2014, Java Day Tokyo 2016 - 2014, JJUG CCC Spring & Fall (2014), WebLogic roundtable (2012-2013), Rakuten Tech Conference 2016 – 2013, etc. – Book: デベロッパーのキャリアと働き方を語ろうVol.1 (2016) – Magazine: 日経コンピュータ 2015年8月号 @IT (2005-2010), CIO Magazine (2009), IT Architect (2005-2009), Web+DB Press (2005), Java World (2001-2004), etc.
  • 3. @HirofumiIwasaki 3 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
  • 4. @HirofumiIwasaki 4 About the Enterprise Systems  Enterprise systems (ES) are large-scale application software packages that support business processes, information flows, reporting, and data analytics in complex organizations. -(from Wikipedia "Enterprise Systems")
  • 5. @HirofumiIwasaki 5 Enterprise Software on Enterprise Systems  Enterprise software, also known as enterprise application software (EAS), is computer software used to satisfy the needs of an organization rather than individual users. Such organizations would include businesses, schools, interest-based user groups, clubs, charities, or governments.[1] Enterprise software is an integral part of a (computer-based) information system. Enterprise Systems Enterprise Software
  • 6. @HirofumiIwasaki 6 Non-Functional Requirements of Enterprise Software Enterprise Software ACID Transaction Management Distributed Transaction Management Efficient Database & MQ Connectivity Variety of Communication Protocols Frameworks of Web Systems and Mobile Apps Efficient Development Environment Security Management, etc.
  • 7. @HirofumiIwasaki 7 Custom? or Packaged? on Enterprise Systems Packaging Software Approach Custom Software Approach  For strong area of the enterprise.  Specialties of the competitiveness, depends on each industries.  For non strong area of the enterprise.  E.g. HR, accounting, information sharing systems, etc.
  • 8. @HirofumiIwasaki 8 Custom? or Packaged? on Enterprise Systems Packaging Software Approach Custom Software Approach  For strong area of the enterprise.  Specialties of the competitiveness, depends on each industries.  For non strong area of the enterprise.  E.g. HR, accounting, information sharing systems, etc.
  • 9. @HirofumiIwasaki 9 For Start Making Custom Enterprise Software Maturity for Huge Mission Critical Systems OpenStandard,CommunityPower Microsoft .NET Framework Java EE Open Source Platform like PHP, etc. Vendor Locked-In Platform, like ABAP, etc.
  • 10. @HirofumiIwasaki 10 For Start Making Custom Enterprise Software Maturity for Huge Mission Critical Systems OpenStandard,CommunityPower Microsoft .NET Framework Java EE Open Source Platform like PHP, etc. Vendor Locked-In Platform, like ABAP, etc.
  • 11. @HirofumiIwasaki 11 Summary: Select Java EE for Enterprise Apps is even better platform for  Huge, mission critical systems.  Vendor free.  Larger community power.  Amount of engineers.
  • 12. @HirofumiIwasaki 12 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
  • 13. @HirofumiIwasaki 13 Java EE Overview  Java EE = Java Platform, Enterprise Edition  Java specification for enterprise systems, not light weight systems. – For other matured mission critical systems. – Especially for financial industry systems.
  • 14. @HirofumiIwasaki 14 Java EE Spec & App Servers  Java EE specification is managed by Java community process (JCP).  Many vendors are making Java EE app server not only for commercial usage but also for free. Specification Java EE App Servers
  • 15. @HirofumiIwasaki 15 History of Java EE Specification 1999 2001 2003 2006 2009 2013 2017 J2EE 1.2 (Dec, 1999) J2EE 1.3 (Sep, 2001) J2EE 1.4 (Nov, 2003) Java EE 5 (May, 2006) Java EE 6 (May, 2006) Project JPE Java EE 7 (June, 2013)
  • 16. @HirofumiIwasaki 16 1999 2001 2003 2006 2009 2013 Java EE 7 Svrs J2EE 1.2 Servers Pre-J2EE J2EE 1.3 Servers J2EE 1.4 Servers Java EE 5 Servers Java EE 6 Servers 2017 History of Java EE Spec Servers
  • 17. @HirofumiIwasaki 17 Combination of Java EE and Java SE J2EE 1.2 (1999) J2EE 1.3 (2001) J2EE 1.4 (2003) Java EE 5 (2006) Java EE 6 (2009) Java EE 7 (2013) J2SE 1.2 (1998) J2SE 1.3 (2000) J2SE 1.4 (2002) J2SE 5 (2004) Java SE 6 (2006) Java SE 7 (2011) Java SE 8 (2014) One EE specification, with latest SE version Java EE 7 relies on SE 7 Sun Microsystems Oracle
  • 18. @HirofumiIwasaki 18 Enterprise Systems Web Front End Business Logic Back End
  • 19. @HirofumiIwasaki 19 Enterprise Systems and Java EE Specifications JSF Servlet Web Front End Business Logic JTA CDI EJB Back End JDBCRMI- IIOP JAX- RS JPA JMS JAX- WS Web Socket JBatch Java Mail
  • 20. @HirofumiIwasaki 20 Standardization History of Java EE J2EE 1.2 J2EE 1.3 J2EE 1.4 Java EE 5 Java EE 6 Java EE 7 Java EE 8 JDBC EJB/JTA/XA/IIOP Servlet/JSP JMS RMI SOAP JPA JSF/Facelet REST CDI JavaBatch Project JPE or earlier WebSocket … … WebLogic Hibernate Spring Framework
  • 21. @HirofumiIwasaki 21 New Specs of Java EE J2EE 1.2 J2EE 1.3 J2EE 1.4 Java EE 5 Java EE 6 Java EE 7 Java EE 8 JDBC EJB JSP JMS RMI SOAP JPA JSF/Facelet REST CDI JavaBatch Project JPE or earlier WebSocket EJBEntityBean JSP … …
  • 22. @HirofumiIwasaki 22 2017: Java EE 8 – Now RevisingOriginalPlan: FinalRelease: H12017 RevisedPlan: FinalRelease: Q32017 Early Draft Public Review Propos ed Final Draft Final Release 2016 2017 Q3, 2017 1H, 2017, canceled Public Survey Propos ed Final Draft Final Release
  • 23. @HirofumiIwasaki 23 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
  • 24. @HirofumiIwasaki 24 Application Design with Java EE: Keywords App Server and Version Vendor Selection Java EE Version Commercial or Free Product Roadmap
  • 25. @HirofumiIwasaki 25 Rich Clients Web Presentation Business Logic (no presentations) Typical Enterprise Systems DBs MQ Connection Other Servers EMail MTA Call Call Call Call Call Call Data Access Messaging
  • 26. @HirofumiIwasaki 26 Rich Clients Web Presentation Business Logic (no presentations) Typical Usage of Java EE 7 JPA EJBJSF DBs Java FX JTA Automatic Transaction JMS MQ Connection RMI-IIOP Other Servers EMail MTAJavaMail JAX Call Call Call Call Call Call Data Access Messaging CDI
  • 27. @HirofumiIwasaki 27 Use Latest Product, Latest Spec I'll start my new project with Java EE. Which version should use? Use latest product version, with latest Java EE specification. Because latest version is free of EOL, greater APIs for ease of development.
  • 28. @HirofumiIwasaki 28 GlassFish & Payara WebLogic WebSphere JBoss Japan Group App Engine Copy Java EE World and Others Apache Group Google Interstage Cosminexus Microsoft .NET
  • 29. @HirofumiIwasaki 29 Details of Java EE Application Servers Vendor App Server EE 1.4 (2003-) EE 5 (2006-) EE 6 (2009-) EE 7 (2013-) Open Source GlassFish / Payara - 2.x 3.x 4.x Oracle WebLogic 9.x 10.x 12.1 12.2 IBM WebSphere 5.1-6.x 7.0 8.5 8.5.5 Red Hat JBoss 4.x 5.1 6.0 7.0 Red Hat WildFly - - - 8.0-10.0 Hitachi Cosminexus 7.x 8.x 9.x 10.0 TmaxSoft JEUS 5.0 6.0 7.0 8.0 Fujitsu Interstage 9.0,9.1 9.2-11.0 11.1 - Apache Geronimo - 2.x 3.x - Apache TomEE - - 1.x -
  • 30. @HirofumiIwasaki 30 Commercial or Free? Is heavily SLA required? Is open source required? Some supports required? Select Commercial Products Select Free Products Is there few initial cost limitation? Is DIY acceptable?Is long running upgrading path required? WebLogic WebSphere JBoss Cosminexus /Payara
  • 31. @HirofumiIwasaki 31 Summary: Select Your Appropriate Server Select the appropriate Java EE server.  Vendor  Applied Java EE version  Free or Commercial  Commercial support required or not
  • 32. @HirofumiIwasaki 32 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
  • 33. @HirofumiIwasaki 33 IDE: Keywords IDE or Not Repository Building System Productivity Development Standard
  • 34. @HirofumiIwasaki 34 In 1990’s – early 2000’s “Great Engineers” never use such IDEs! Instead, they use text editor! *Is Japanese special habit not to use IDEs?
  • 35. @HirofumiIwasaki 35 “Great Engineer” never use such IDEs! Instead, use text editor! We’re now living in 2010’s NEVER Not good for productivity on enterprise development. Apply the latest technologies! *Is Japanese special habit not to use IDEs?
  • 36. @HirofumiIwasaki 36 Over 10,000 classes in real large systems Crazy amount of source codes!
  • 37. @HirofumiIwasaki 37 Manage tons of codes with modern IDE
  • 39. @HirofumiIwasaki 39 De-Facto standard building tool  Determined with “pom.xml”  Automatic library downloading  Ease of use, script not supported  Determined with “build.gradle”  Automatic library downloading  Complex scripting supported
  • 40. @HirofumiIwasaki 40 Three major IDEs support Maven in default setting *Additional plugin required * * “New Project” Dialogs:
  • 41. @HirofumiIwasaki 41 “Special Project Files” are not required anymore with Maven Maven Project are used by these three IDEs
  • 42. @HirofumiIwasaki 42 Summary: recommendation to make Java EE project Make project with , Enjoy programming with (Choose anything you want)
  • 43. @HirofumiIwasaki 43 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
  • 44. @HirofumiIwasaki 44 Web Front-End: Keywords Security JavaServer Faces (JSF) Page Flow HTTP Facelet Post Back
  • 45. @HirofumiIwasaki 45 Rich Clients Web Presentation Business Logic (no presentations) Typical usage of Java EE 7 JPA EJBJSF DBs Java FX JTA Automatic Transaction JMS MQ Connection RMI-IIOP Other Servers EMail MTAJavaMail JAX Call Call Call Call Call Call Data Access Messaging CDI
  • 46. @HirofumiIwasaki 46 Selection of the front-end frameworks of server side Java  JavaServer Faces – Genuine Java EE front-end framework – Many additional components like “PrimeFaces”. – View-based operation – Security countermeasures already implemented like XSS, XSRF.
  • 47. @HirofumiIwasaki 47 <Facelet> View 1 Backing1 - fields + load() + action() <Facelet> View 2 Backing2 - fields + load() + action() <Facelet> View 3 Backing3 - fields + load() + action() Front View & Backing Bean Per View Operation
  • 48. @HirofumiIwasaki 48 Paradigm Changes: From 2000's to 2010's <<JSP>> View1 <<JSP>> View 2 Action1 + action() <<JSP>> View 3 Action2 + action() ActionForm1 - fields + validate() ActionForm2 - fields + validate() Operate Action Build Next View Operate Action Build Next View <Facelet> View 1 Backing1 - fields + load() + action() <Facelet> View 2 Backing2 - fields + load() + action() <Facelet> View 3 Backing3 - fields + load() + action() Front View & Backing Bean 1.x
  • 49. @HirofumiIwasaki 49 Older JSP vs. New Facelet JavaServer Pages Facelet Compile Java Servlet Work HTML Rendering HTML Rendering Real-time Interpreting & Work No Compile, Rapid Dev. Re-Deploy & Compile Harmful Dev. Procs Check Fix Fix Reload
  • 50. @HirofumiIwasaki 50 Security Countermeasures and JSF Cross Site Scripting (XSS) Cross Site Request Forgery (CSRF) Output values to HTML with escaping. Requirement Output one time token for next page transitions. JSF Automatically operated Automatically operated
  • 51. @HirofumiIwasaki 51 Summary: Recommendation for the Java EE 7 Front-End Use For your web front-end, Implement with Facelet.
  • 52. @HirofumiIwasaki 52 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
  • 53. @HirofumiIwasaki 53 Business Logic: Keywords Enterprise JavaBeans (EJB) Context and Dependency Injection (CDI) JBatch Transaction Management Container Managed Transaction (CMT)
  • 54. @HirofumiIwasaki 54 Rich Clients Web Presentation Business Logic (no presentations) Typical usage of Java EE 7 JPA EJBJSF DBs Java FX JTA Automatic Transaction JMS MQ Connection RMI-IIOP Other Servers EMail MTAJavaMail JAX Call Call Call Call Call Call Data Access Messaging CDI
  • 55. @HirofumiIwasaki 55 Two Solutions for Realtime Logics: EJB or CDI For Heavy & Mission-Critical Business Logics CDIEJB Context and Dependency Injection For Light-weight Logics, Rapid, Ease of Development
  • 56. @HirofumiIwasaki 56 Review: What’s EJB? Why EJB? EJBClient 1. Remote Invocation EJB 2. Automatic Transaction Management Database (BEGIN) (COMMIT) EJB EJB EJB EJB Instance Pool Activate 3. Instance Pooling for Faster Operation RMI-IIOP SOAP REST Web Socket EJB Client 4. Security Management
  • 57. @HirofumiIwasaki 57 Review: CDI – Light Version of EJB CDIClient 1. Remote Invocation CDI 2. Automatic Transaction Management Database (BEGIN) (COMMIT) EJB EJB Instance Pool Activate 3. Instance Pooling for Faster Operation RMI-IIOP SOAP REST Web Socket Client 4. Security Management Few Functions, Faster Deployment
  • 58. @HirofumiIwasaki 58 POJO Java EE ServerJava EE Server Java Batch How Design the Batch Logics? Choice 1: Use EJB/CDI, Call via EJB/CDI Remote from Outside EJB Batch Batch Kicker Call Choice 2: Use Java Batch Framework, Call from Outside Batch Kicker Call Choice 3: Micro Service (Java EE 9 style) Batch Kicker Call Full automatic transaction, Able to use embedded server. If the standard templates suitable for your app, try it. Not released yet, but you can try with Payara Micro now.
  • 59. @HirofumiIwasaki 59 Summary: Recommendation for the Java EE 7 Front-End Use for your real-time logics, Consider batch logics design. CDI
  • 60. @HirofumiIwasaki 60 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
  • 61. @HirofumiIwasaki 61 Data Access: Keywords Java Persistence API (JPA) Data Access Object (DAO) JDBC Auto Generation Java Persistence Query Language (JPQL)
  • 62. @HirofumiIwasaki 62 Rich Clients Web Presentation Business Logic (no presentations) Typical usage of Java EE 7 JPA EJBJSF DBs Java FX JTA Automatic Transaction JMS MQ Connection RMI-IIOP Other Servers EMail MTAJavaMail JAX Call Call Call Call Call Call Messaging Data Access CDI
  • 63. @HirofumiIwasaki 63 About JPA – Java Persistence API Java Persistence API (from Java EE 5)
  • 64. @HirofumiIwasaki 64 JPA – Simple Database Mapper Relational Database (E-R Diagram) One by One JPA Entity (Class Diagram) Auto Generate With Bean Validation
  • 65. @HirofumiIwasaki 65 JPA – Simple Database Mapper JPA Entity JPA Data Access Object (DAO) Auto CRUD to Database Access to RDB
  • 66. @HirofumiIwasaki 66 public List<Member> findMemberByName(String name) { String queryString = "SELECT a FROM Member m " + "WHERE m.name = LOWER(:name)"; Query query = getEntityManager().createQuery(queryString); query.setParameter("name", name); List<Member> result = query.getResultList(); } JPA Custom Queries – JPQL and Criteria Query JPQL: Criteria Query: public List<Member> findMemberByName(String name) { CriteriaBuilder builder = this.em.getCriteriaBuilder(); CriteriaQuery query = builder.createQuery(); Root<Member> member = query.from(Member.class); query.select(member); query.where(builder.equal(member.get(”name"), name)); List<Member> result = this.em.createQuery(query).getResultList(); }
  • 67. @HirofumiIwasaki 67 JTA Transaction Management Java EE Application EJB Business Logic Why You Should Not Use Raw JDBC in Java EE? Java EE Application Server Java VM Connection Pool EJB Object Pool Thread Pool Self-Managed JDBC Connection JPA Entity Manager JNDI JDBC Driver Manager RAW ? ? No Global Transaction No Connection Management
  • 68. @HirofumiIwasaki 68 Combination with EJB Session Bean Business Logic (no presentations) JPA EJB DBs JTA Automatic Transaction Call Full automatic transaction management with EJB session bean JPA entity manager automatically join the CMT of EJB Data Access
  • 69. @HirofumiIwasaki 69 Summary: Use JPA, Instead of Raw JDBC. Apply JPA ordinarily for data, within the EJB / CDI Container Managed Transaction (CMT)
  • 70. @HirofumiIwasaki 70 Agenda 1. Enterprise Systems and its Features 2. Java EE Specifications for Enterprise Systems 3. Java EE Applying Points for Real Enterprise Systems a) Start Application Design with Java EE b) Specify IDE for Modern Development Style c) Web Front-End with JSF d) Business Logic with EJB or CDI e) Data Access with JPA f) Connectivity with RMI-IIOP, REST and WebSocket
  • 71. @HirofumiIwasaki 71 Connectivity: Keywords RMI over IIOP (RMI-IIOP) Web Services JAX-WS Web Socket + JSON Remote Method Invocation (RMI) REST + JSON Global Transaction (XA)
  • 72. @HirofumiIwasaki 72 Review: What’s EJB? Why EJB? EJBClient 1. Remote Invocation EJB 2. Automatic Transaction Management Database (BEGIN) (COMMIT) EJB EJB EJB EJB Instance Pool Activate 3. Instance Pooling for Faster Operation RMI-IIOP SOAP REST Web Socket EJB Client 4. Security Management
  • 73. @HirofumiIwasaki 73 Supported protocols of Java EE 7 (EJB) Protocol Supported From Annotation Client Stub Value Marshaling Global Transaction RMI-IIOP J2EE 1.2 @Remote in remote interface Remote interface with auto generate Auto XA Supported SOAP Java EE 5 @WebService Auto generate in development Auto N/A REST Java EE 6 @GET, @POST, etc. (Nothing special) Work with JSON or something (string base) N/A Web Socket Java EE 7 @ServerEndpoint @ClientEndpoint with auto generate Work with JSON or something (string base) N/A
  • 74. @HirofumiIwasaki 74 Global Transaction Management with XA Protocol For heavy transaction: consider RMI-IIOP EJB Session BeanClient RMI-IIOP Other System’s EJB Database Other Enterprise Information Systems IIOP AUTO BEGIN AUTO COMMIT
  • 75. @HirofumiIwasaki 75 For light-weight usage: consider Web Socket / REST + JSON Local Transaction Management EJB Session BeanClient Web Socket or REST Database AUTO BEGIN AUTO COMMIT Ultra-Fast, Ease of Dev.
  • 76. @HirofumiIwasaki 76 EJB Session Bean with RMI-IIOP and Web Socket @Stateless @Remote @ServerEndpoint(value = "/memberlogic") public class MemberLogic implements MemberLogicRemote { @OnMessage public String register(String message, Session session) { // WRITE TRANSACTIONAL LOGICS HERE! return xxxx; } } EJB RMI-IIOP Web Socket Some Clients Transactional Processing for RMI-IIOP for Web Socket for RMI-IIOP for Web Socket
  • 77. @HirofumiIwasaki 77 Summary: Recommendation of Protocols Select the RMI-IIOP for heavy transactional distributed systems. Select the Web Socket or REST for system that requires light-weight and faster speed.
  • 78. @HirofumiIwasaki 78 Summary Enterprise systems require many mission critical basement. Java EE is one of the best platform on the aspect of the vendor free. Consider many critical points when Java EE design & development start.