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Goal Show case Geronimo open source story

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Presentation on theme: "Goal Show case Geronimo open source story"— Presentation transcript:

0 Inside Apache Geronimo 1.1 - What makes it special?
Rakesh Midha IBM Software Labs, Bangalore

1 Goal Show case Geronimo open source story
Where it fits in Industry and Enterprise How it facilitates easy development and deployment Understand Geronimo 1.1 additions Get you hooked with Geronimo

2 Agenda Geronimo - An Introduction Why Geronimo? What makes it Special?
Where does it fit well? Geronimo Architecture and Components Geronimo 1.1 – Whats New? Getting Started Administration and Configuration Development Enviornment Quick Application Development Getting Involved Summary, Q&A

3 Geronimo - An Introduction

4 What is Apache Geronimo?
Open source J2EE application server project developed by the Apache Software Foundation. Benefits from the efforts of collaborative development by an open community of Java developers worldwide. Apache-licensed open source application server Highly customizable Small footprint Community-driven Apache Geronimo brings together best-in-breed technologies across the broader open source community to support J2EE specifications, including: Apache Tomcat and Jetty for Servlets 2.4 and JSP 2.0 OpenEJB for EJB 2.1 ActiveMQ for JMS 1.1 MX4J for JMX 1.2 TranQL for JDBC Apache Axis for Web Services HOWL (ObjectWeb) for JTA 1.0 Apache Geronimo is licensed under the Apache License, version 2.0, one of the most flexible licenses available for open source software. This license gives you the freedom to use the technology however you wish, build derivative works for distribution, and make code contributions of your choice back to the community. Using Apache Geronimo allows you to benefit from the best of open source while participating in the innovation of open source development. Brings together leading technologies from the broad open source community to support J2EE

5 Apache Geronimo Geronimo
Apache Geronimo an Apache Software Foundation top level project that is aimed at creating a world class, free, application server. It is made up of over 30 best of breed open source packages (some not under the Apache domain). The Geronimo kernel provides the common security, deployment, administration, management, and life-cycle services for these components. Geronimo reached official J2EE 1.4 certification in Milestone 5 in Oct 2005.

6 Geronimo Open Source Packages
Howl JDBM JDom Jetty Juddi Junit Mx4j OpenEJB ActiveIO ActiveMQ Scout Antlr ASM Axis Castor Concurrent Apache Directory TranQl Wsdl4j Xmlbeans Xpp3 Xstream Xfire Derby Pluto Slf4j Oro Servicemix Spring Stax Tomcat Regexp Commons Beanutils Collections Digester El Fileupload I/O Lang Modeler Primitives

7 Geronimo History and Progress
Milestone 3 released Geronimo passes J2EE Certification Test Suite Apache Geronimo Project formed IBM acquires Gluecode Software Milestone 4 released V1.0 Released V1.1 Released V1.2 Released Milestone 5 released, full J2EE certification August 2003 August 2004 May 2005 June 2005 August 2005 Oct 2005 Jan 2006 June 2006 In Plan

8 Why Geronimo?

9 Geronimo – Key Features
J2EE 1.4 Certified Certification from Sun Microsystems in October last year Certified on the Sun JDK 1.4.2, works with JDK 1.5 without CORBA Option for Jetty or Tomcat as a Web Container Geronimo supports both Jetty as well as Tomcat. Separate package for download, available for Jetty and Tomcat. Database Support Comes with Apache Derby database Also supports JDBC enabled databases using a connector framework from TranQL Eclipse Web Tools Project support Integrated development environment for creating, deploying, and debugging directly against Geronimo Runtime customization Advanced micro-kernel architecture enables runtime customization to save systems resources and improve performance Allows for greater flexibility in creating different server personalities in the future Self Explanatory Open Source Databases Cloudscape Embeddable Jar File – Simple & Easy to embed as part of an application. Rich Support of SQL language No Administration Flexibility to run as Embedded Client or on Server MySQL Server based only Not Java - not invisible, not easily embeddable. Need DBA Targeting different market – infrastructure. Classic database server means more cost/complexity Big footprint Not ‘true’ open source Postgres Server based Not pure Java Not silent install, not invisible Not as small Not as standards oriented HSQL (Java) Very small, less than 1 meg Best suited for PDAs Does not have SQL 92 functionality Not as richly featured Axion (In Apache) In Apache, have not developed a community Small database – less code, less function Not fully SQL 92 compatible – includes non-standard features Ingres Database Server Been around forever CA does not have a strategy around Open Source, not likely to build a community Proprietary Pointbase (Java) Need Verification of feature, performance, function vs. Cloud

10 Geronimo – Key Features
Centralized configuration and control Easy to use Web Console Small Footprint ~60MB Easy access - downloadable in minutes Easily embeddable in customer or ISV stack Liberal product license Apache open source (ASF) license Flexible and rapid deployment across multiple configurations Directory-based hot deployment Local and remote deployment through command line, console, and IDE Improved reliability for most commonly deployed applications Web-tier clustering Self Explanatory Open Source Databases Cloudscape Embeddable Jar File – Simple & Easy to embed as part of an application. Rich Support of SQL language No Administration Flexibility to run as Embedded Client or on Server MySQL Server based only Not Java - not invisible, not easily embeddable. Need DBA Targeting different market – infrastructure. Classic database server means more cost/complexity Big footprint Not ‘true’ open source Postgres Server based Not pure Java Not silent install, not invisible Not as small Not as standards oriented HSQL (Java) Very small, less than 1 meg Best suited for PDAs Does not have SQL 92 functionality Not as richly featured Axion (In Apache) In Apache, have not developed a community Small database – less code, less function Not fully SQL 92 compatible – includes non-standard features Ingres Database Server Been around forever CA does not have a strategy around Open Source, not likely to build a community Proprietary Pointbase (Java) Need Verification of feature, performance, function vs. Cloud

11 What makes it Special?

12 Geronimo – Key Design Principles
Simple Easiest platform to development on, obtain, use, and service. Easy to understand, invisible to the customer. Application centric. Easy to configure and change. Embedded documentation, service functions, user interfaces, etc. Default setting will get you running. Flexible Can plug-in function while that application server is running. J2EE function is just one of the personalities that can be plugged in. Geronimo becomes the platform that partners/customers think when building apps. Need to be the Eclipse of the tooling world. Reliable ‘Appliance like’ reliability. Never fails. Startup and recycle time should be minimal. Customer never sees or cares about the server… it is about the application. It is the ‘intel chip’ for your applications. Administration is available and easy. ‘Tomcat like’ reputation in open source.

13 Geronimo – Technical Advantage
Enchilada of best of breed open source products GBean Architecture A pluggable framework Modular Architecture Tomcat has web features but it lacks other J2EE features Low memory and resource requirement Better web performance as compared to other open source application servers True open source community driven Strategic commitment from IBM, Covalent, Chariot and other big players Very Active community and dev/user list Optional Support from IBM

14 Geronimo – Still Why? It’s all Free!!! Free Application Server
Free Development, Debugging environment Free Management tools Free resources like database, messaging Free enterprise class documentation Free Sample applications Free educational material like articles, tutorials

15 Where does it fit well?

16 Where does this fit in the Enterprise?
Apache Geronimo are excellent positioned as developer runtimes Integration into Eclipse helps to reduce software licenses Small footprint Single User Environments Low end SMB companies Quick, frictionless access to application server technology with no up-front costs Departmental Applications in Enterprises SMBs and departmental applications are a good target for this technology Not quite ready to run your 4,000 AppServer farm Advanced monitoring, integration with commercial / open source monitors not quite there yet.

17 Today – With Tomcat plus ‘other stuff’ you do yourself
Your developers have a job to do – write your killer app! They chose Apache Tomcat because it helps them build apps quickly But Tomcat doesn’t have web services support, a security framework, or messaging; so your developers added those components and integrated them into the stack Then your rock star developer wrote some app-specific service and integrated that into the stack Turns out your app needs clustering too, so they throw that into the stack …but the web services component they got doesn’t do clustering; luckily there’s a newer version of that out now, so they get the new version and integrate THAT into the stack Now your staff is maintaining your killer app, Apache Tomcat, the web services component, messaging, security, clustering, AND your custom components build apps quickly…? What happened to building apps quickly?? Developers maintain all this! Your Killer App JMS Messaging Other services you need/write SOAP/Web Services (Axis) SOAP/Web Services (Axis) Security / Authentication Web Tier Clustering Custom Integration Custom Integration Apache Tomcat

18 Now, just much easier (oh, and future-proof)!
What if you could start with Tomcat Extend Tomcat with pre-integrated features & services you need most (read: someone other than you did the tedious work) Welcome to a little secret we like to call Tomcat+, use Apache Geronimo It’s fully extensible, and it’s built on the innovative open-source Apache Geronimo kernel Plus all the same Apache Tomcat you’re already using Plus the leading components you want to use pre-integrated and tested (and the ability to turn off what you aren’t using) Plus the support you need from IBM Your Killer App Apache Tomcat SOAP/Web Services (Axis) JMS Messaging Security / Authentication Web Tier Clustering Other Optional Plug-ins for EJBs, Transactions, etc. Geronimo Plug-In Kernel Fully Integrated & Extensible Kernel Services Apache Geronimo

19 Geronimo Architecture and Components

20 Geronimo Architecture - GBean
The Geronimo framework provides a set of cooperating classes, called GBeans, for combining an arbitrary set of components into a system Everything in Geronimo framework is GBean Lightweight kernel provides central integration based on Inversion of control pattern. Manageable at runtime using JMX, JSR-77 Example: An EJB container Web Module It must be aware of every EJB in the system. It registers a dependency on any EJB GBean An EJBs are added to the system The Geronimo kernel recognizes the relationship and injects information from the EJB GBean into the EJB container GBean where it updates its configuration state. This action is called dependency injection. A J2EE web module that contains servlets and uses EJB It depends on the web container and the EJB container When its GBean is started, the Geronimo kernel recognizes the dependency and starts the web container and the EJB container first Kernel – runtime for GBeans Life Cycle management – Gbean Life cycle Configuration Mgmt – Configurations of GBeans Dependency – Dependency among plans ( config ids ) , Repository – store that contains jars Remoting – JMX

21 Geronimo Kernel Kernel Geronimo Beans Core of the component model
Provides central integration point Binds all the subsystems Based on Inversion of Control /Injection Pattern Geronimo Beans GBean is a manageable unit in the Geronimo framework To add new component to the server, you deploy the collection of GBeans A deployment plan is an XML document that provides server specific attribute values GBeans can hold states and can define relationships amongst them GBean life cycle is managed by the kernel. A java class can be wrapped to become a GBean GBeans are used to tie all the open source projects in Geronimo ( Derby, Tomcat, Axis, OPenEJB …. ) GBean can notify events.

22 Geronimo components Specification required for J2EE certification
Area of coverage Project or code used by Geronimo Servlets 2.4 JavaServer Pages (JSP) 2.0 Web tier container with support for JSPs and servlets Jetty and Tomcat Enterprise Java Beans (EJB) 2.1 EJB container OpenEJB Java Message Service (JMS) 1.1 Messaging service ActiveMQ Java Naming and Directory Interface (JNDI) 1.2.1 Directory service/naming API Custom code implementation Java Transaction API (JTA) 1.0 Transactions Custom manager with High-speed ObjectWeb Logger (HOWL) for transaction logging, XA supported, evolving to Java Open Transaction Manager (JOTM) JavaMail 1.3 Mail Custom coding JavaBeans Activation Framework (JAF) 1.0 Activation -- handling html/text/gif/jpg MIME types, primarily for JavaMail attachments JSR J2EE Management 1.0 Manageability Custom coding with MX4J JSR J2EE Deployment 1.1 Deployment and configuration -- cross-vendor server deployability Custom Code JMX 1.2 MX4J

23 Geronimo components - cont
Java Data Access API (JDBC) 3.0, 2.1 Database Code from TranQL Java API for XML Processing (JAXP) 1.2 SAX, DOM APIs; third-party SAX, DOM, XSLT engine pluggability JDK support where applicable, and Apache Xerces J2EE Connector Architecture (J2CA) 1.5 Connector Custom coding. Includes JMS resources and JDBC pools. JSR Implementing Enterprise Web Services 1.1 Web services Apache Axis Java API for XML-based RPC (JAX-RPC) SOAP with Attachments API for Java (SAAJ) 1.2 Java API for XML Registries (JAXR) 1.0 Apache Scout JSR 115: Java Authorization Contract for Containers (JACC) Security -- authorization and authentication Custom development using JDK's JAAS support Internal database Derby Persistence mechanism Unified substrate for CMP and Beans/POJO oriented schemes over TranQL Interoperability TCP/IP, HTTP1.1, SSL3.0, TLS 1.0, SOAP 1.1, WS-I Basic Profile 1.0 CORBA - IIOP, RMI-IIOP, EJB Interop, CORBA Interop Naming Service, JRMP JDK support (that is, ORB and JRMP), support from other packages, and custom code

24 Deployment Framework Each Component has a GBean and deployment plan.
Plan is an xml file containing properties of GBean Server is built using j2ee-server-plan.xml <gbean name="JettyWebConnector" class="org.apache.geronimo.jetty.connector.HTTPConnector"> <attribute name="host">localhost"</attribute> <attribute name="port">8080</attribute> <reference name="JettyContainer"><name>WebContainer</name></reference> <attribute name="maxThreads">50</attribute> <attribute name="minThreads">10</attribute> </gbean> Can also deploy plan to running server using deployer For modules you need specific file as deployment plan Web Application (WAR) - WEB-INF/geronimo-web.xml Enterprise Application (EAR) META-INF/geronimo-application.xml Enterprise Java Beans (JAR) META-INF/openejb-jar.xml J2EE Connectors (RA) META-INF/geronimo-ra.xml Client Application META-INF/geronimo-application-client.xml

25 Geronimo 1.1 – Whats New?

26 Geronimo 1.1 Updated deployment plan
Running with JDK 1.5 without CORBA support Improved scalability, portability and overall organization Enhanced Web Console Memory utilization graphics, Live console graph Thread Pools statistics Remote HTTPd configuration wizard and plugins JMS resource wizard Keystore manger Improved Hot deployment Application storage in repository Enhanced SMTP support Little-G Plugin architecture In-place deployment * Geronimo also supports in-place deployments. This means an archive or a directory can be deployed without being copied into the Geronimo directory structure.

27 Geronimo 1.1-Little-G Lightweight distribution of geronimo available for both jetty and tomcat Small space requirement ~20MB and smaller memory footprint It includes a WebContainer, Transaction Manager and some other essential elements of Geronimo. Not J2EE compliant Can be upgraged for specific requirement like JMS, J2EE etc using plugins.

28 Geronimo 1.1-Plugins A Geronimo plugin is a new packaging mechnism for geronimo modules Geronimo applications, server features, and integrated products can be distributed as Geronimo plugins. Plugins are easy to install, automatically download any dependencies, and do not require server restarts. Using the plugin infrastructure, applications or modules can be copied from one Geronimo installation to another Developer to Developer Development environment to production environment Plugin stays in Maven 2 repository and automatically downloads dependencies from other repositories Web console can be used to create plugins

29 Plugin web console

30 Getting Started

31 Quick Start Available for download from Linux, windows and MacOS installation in tar/zip format with jetty and tomcat available System Requirements Redhat Enterprise Linux 3.0 or 4.0, Suse Linux Enterprise .9 Microsoft XP with SP2 120MB Disk Space 128MB RAM (256MB Preferred, depends upon deployed Applications) Installation Windows Install JDK, set JAVA_HOME and simply unpack geronimo-* Linux Install JDK, export JAVA_HOME and simply unpack geronimo-*-j2ee-1.1.tar.gz

32 Server Administration
Starting a Server From application launcher, execute startup.bat or, or run java – jar bin\server.jar The server will display the TCP/IP ports where it is listening for requests You can confirm readiness of server by navigating to welcome page and in browser When Prompted enter System/Manager as userid/password Startup options : -quite, -v, -vv Stopping a Server From Application Launcher, Execute shutdown.bat or, or run java –jar shutdown.jar Stop server using Web Console Press Ctrl-C at the Server Started window

33 Tools and Commands Deploy command - deploy.bat and
java -jar deployer.jar [general_options] <command> [command_options] deploy [general_options] <command> [command_options] Commands available 1. Common Commands deploy redeploy start stop undeploy 2. Other Commands distribute list-modules list-targets 3. Configuration jar install-plugin search-plugin General options --uri --host --port --driver --user --password --syserr --verbose --offline

34 Administration and Configuration

35 Web Console The administration console provides a convenient, user friendly way to administer many aspects of the Geronimo Server. Can be viewed in a browser at Default password is system/manager It can be used for server management, and viewing/editing following information: Server/JVM usage statistics Server logs Control server functionalities Web Server configuration Database, JMS Resource configurations Thread pool, database pool, J2EE connectors management Apache HTTP, Derby maintenance Application/ Modules/ Plugin management Security realms management

36 Web Console view

37 Deploying JDBC and JMS resources
Database Pool is deployed as a connector in Geronimo Database Connection pool can be configured at the server level, application level or part of single application module, as default Configuring Database pool Create Database Pool deployment plan containing configId, parentId, dependency, uri, connectionfactory-interface, name and configurable properties like Driver, user, passwd etc Deploy pool as connector Server wide java -jar bin/deployer.jar deploy database-pool.xml \ repository/tranql/rars/tranql-connector-1.0.rar Application Scoped Create application.xml with Create geronimo-application.xml jar -tf my-app.ear my-web-app.war my-ejbs.jar tranql-connector-1.1.rar database-pool.xml META-INF/application.xml META-INF/geronimo-application.xml Client Module Scoped A module scoped connection pool is declared in the geronimo deployment plan for the module Pool Type Multiple Appl. Multiple Modules Client Module Server-wide Yes No Application-scoped Client Module-scoped Module Scoped A module scoped connection pool is declared in the geronimo deployment plan for the module that should have access to the pool. The plan will have an additional resource element containing pool defination.

38 Deploying JDBC and JMS resources - Cont
JDBC Resources In Modules Deployment descriptor ie web.xml Add resource ref <resource-ref> <res-ref-name>jdbc/DataSource</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> <res-sharing-scope>Shareable</res-sharing-scope> </resource-ref> For external references deployment plan is required with following info: <naming:resource-ref> <naming:ref-name>jdbc/DataSource</naming:ref-name> <naming:resource-link>SystemDatasource</naming:resource-link> </naming:resource-ref> In Application code lookup datasource and use it. InitialContext ctx = new InitialContext(); DataSource ds = ctx.lookup("java:comp/env/jdbc/DataSource"); Connection con = ds.getConnection(); JMS Resources The default Geronimo server starts with ActiveMQ as messaging server JMS Server must be running and its GBean is created and deployed JMS application resources like connection factories, topics, and queues are deployed using J2EE connector, which can be used like JDBC resource.

39 Geronimo Classloader Bootstrap, Extensions – JVM Classes
System – Geronimo System Server – Critical classes and services for J2EE EAR – EAR Classloader Dependency loaded as part of EAR Classloader. OSCGi – Spring – SCA -

40 Troubleshooting Logging
Administration Console provide 4 portlets for configuration and viewing the server’s log Log Manager to specify log configuration file, Log Level, file size and Refresh Period Server Log Viewer to view server log and set filters for refining results displayed Derby Log Viewer to view Derby server logs Web Access Log Viewer to view web server logs for both tomcat and jetty Detailed log4j configuration settings can be done directly in, and file

41 Security Security In Geronimo you can define and activate multiple security realms build around JAAS Each realm can authenticate user, provide set of principles to authorize user Each realm is a deployed as a component via GBean Default plan in doc/plan/j2ee-security-plan.xml In order to enable https access to web applications, Geronimo requires keystore.

42 Development Enviornment

43 Development Environment
Development Tools Eclipse plug-in for creating, deploying, and debugging Geronimo applications Plug-in provides integration between Eclipse Web Tools Platform and Geronimo Eclipse Web Tools Platform (WTP) project extends the Eclipse platform with tools for developing J2EE Web applications Plugin available for download from geronimo website Integrated test environment Eclipse plug-in provides integrated test environment for Geronimo More information on IBM’s initial contribution to the WTP Project here: (internal)

44 Development Environment views

45 Quick Application Development

46 Quick first web application
Create HelloWorld.jsp Create a plain text file in the <app_home> directory named HelloWorld.jap and copy the content Create Standard J2EE complaint deployment descriptor web.xml in <app_home>/WEB-INF directory page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <jsp:useBean id="datetime" class="java.util.Date" /> <title>Hello IBM Geronimo Version 1.1</title> </head> <body> <h2>Welcome to Geronimo Version 1.1</h2> <p>Congratulations on running this simple application on ${datetime}.</p> </body> </html> <web-app version=“1.0" xmlns=" <welcome-file-list> <welcome-file>HelloWorld.jsp</welcome-file> </welcome-file-list> </web-app>

47 Quick first web application– cont.
Create Geronimo plan Although this sample application does not require it, you can still create Geronimo deployment plan to get first view. Create geronimo-web.xml in WEB-INF directory Package the application From command prompt, go to <app_home> directory and execute jar –cvf HelloWorld.war * Deploy the application You can use Geronimo web console to deploy and run application From command line your can use the deployer.jar to deploy application using java -jar bin\deployer. jar --user system --password manager deploy sample\HelloWorld.war Test the application Test the application by pointing a Web browser to the following URL: <?xml version="1.0"?> <web-app xmlns=" xmlns:naming=" configId="HelloWorld"> <context-root>/hello</context-root> </web-app>

48 Getting Involved

49 What more? Geronimo 1.2 The next version of Geronimo is focused on several areas, including: Enhance the performance and usability of the server. Improve cross-platform compatibility. Improve integration with third-party development tools and server products. Enhance configuration, administration and management tools. Improve clustering support for web containers and EJBs. J2EE 1.5 – EJB 3, Web 2.5 Portal Server plugin Full clustering with respect to EJB/JNDI/Distributed cache. It *does* have full clustering with session replication and fail-over for the Tomcat web component which fits 90% of clustering use cases. Uses Tomcat Clustering GBeans.

50 Getting Involved Geronimo home page
Future road map Jira Bug tracking Subversion source code Mailing lists IRC - #geronimo Wiki Documentation

51 Summary Q&A

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