Object Relational Mapping with JPA / Kodo 4

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Transcript Object Relational Mapping with JPA / Kodo 4

          

What is JBoss JBoss Architecture JBoss Internals JBoss Installation Directory Structure Jboss Enterprise Application Platform Starting / Stopping the server Jboss Administration Console.

JMX Console Twiddle Utility QA Session

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 Open source implementation of the Java EE suite of services  ◦ ◦ ◦ ◦ ◦ ◦ Great deal of customization due to modularization of the services like.

Enterprise JavaBeans (EJB) Java Persistence API (JPA) Java Messaging Service (JMS) Java Transaction Service/Java Transaction API (JTS/JTA) Servlets and JavaServer Pages (JSP) Java Naming and Directory Interface (JNDI)  Advanced and fully extensible, cross component model, aspect integration, server runtime environment  Community Jboss Application Server and Jboss Enterprise Application Platform.

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 Developed by Jboss Inc, now a RedHat division.

 JBoss AS 4.0, a Java EE 1.4 features embedded apache tomcat.

 JBoss AS 4.2 also functions as a Java EE 1.4 but deploys EJB 3.0 by default  JBoss AS 5.1, released as of 2009, operates as a Java EE 5 application server built on top of a new JBoss microcontainer.

 JBoss AS 6.0, an unofficial implementation of Java EE 6, was released on December 28, 2010. JBoss AS 6 does not support the full Java EE 6 stack  JBoss AS 7, the current stable release, was released on July 12, 2011.

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Community Jboss Application Server:    Used by developers to test and integrate middleware capabilities.

Best suited for early to advanced prototyping and development http://www.jboss.org/jbossas/downloads/ Jboss Enterprise Application Platform:     Integrates JBoss Application Server, with JBoss Hibernate, JBoss Seam, and other leading open source Java technologies from JBoss.org into a complete, simple enterprise solution for Java applications.

Integrated, tested and certified Enterprise Platforms.

Evaluation copy : http://www.jboss.com/downloads/ http://docs.redhat.com/docs/en US/JBoss_Enterprise_Application_Platform/5/html/Installation_Guide/Introduction .html

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 Jboss Microcontroller : POJO based kernel ,wires all the services. Core of the server.

 Full support for EJB 3.0

 JBoss Messaging is a high performance JMS provider, rewrite of JBossMQ.

 JBossCache enhancing the performance for caching the data  JBossWS is the web services stack for JBoss 5 providing Java EE compatible web services,  JBoss Transactions is the default transaction manager for JBoss 5.

 JBoss Web is the Web container in JBoss 5, an implementation based on Apache Tomcat that includes the Apache Portable Runtime (APR).

 JBoss Security has been updated to support pluggable authorization models including SAML, XACML and federation http://weblogic-wonders.com

 Crux of Jboss, which is the foundation architecture into which you can plug only the services that your application needs  You can use bean configuration files in the the MicroContainer.

server/xxx/conf

directory to configure  Jboss 5.0 still provides few services based on JMX (Java Management eXtensions) to access the MBeans.

  JMX Service is defined by JMX kernel is Mbeans defined are below.

server/xxx/conf/jboss-service.xml,

some ◦ ◦ ◦ ◦ ◦ ◦ The logging Service The Thread Pool - used to supply threads to run various services The Java Naming and Directory Interface - JNDI Various MBeans for managing security - includes JAAS Various MBeans related to accessing JMX services Various MBeans related to the remoting service http://weblogic-wonders.com

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Pre-Requisites

◦ Enterprise Application Platform 5 requires a Java 6 JDK or JRE.

Installation Methods.

 ZIP download: Extract the ZIP folder. Faster way.

 RPM installation: Suitable for production deployment on Red Hat Enterprise Linux system  Graphical Installer: In addition to installing the base files, the installer offers automation of optional component installation, and basic out-of-the-box security configuration http://weblogic-wonders.com

Steps

  Download the software from RedHat site. (Evaluation Copy) Application Platform Binary Installer https://access.redhat.com/downloads/evals  Execute the command

java -jar jboss-eap-installer-.jar

 Specify the installation directory   Select the packages you would like to install For ex. WebServices stack  Specify the JMX Security  Install the native libraries  Perform the post installation activities like securing the JMX console, Admin Console etc.

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       Bin: Contains all the scripts to start the server, installing the server as a Service.

Client: Contains all the client specific jar files.

Common: Contains the jar files that are common to all the server profiles.

Docs: Contains the documents and examples.

Lib: Contains the library files.

Native : Contains the native libraries Server: Contains server configurations. By default the Jboss installation contains the below server configurations.

      Minimal: Default : All: Standard : Web: Production: http://weblogic-wonders.com

         Incorporates native operating system components and connectors Higher server performance, as native operating system code becomes available for the server to optimize tasks.

Apache Portable Runtime (APR) OpenSSL for implementing SSL and TLS Tomcat Native (TC-Native) mod_jk connects the Tomcat JSP container to the Apache webserver, providing load-balancing.

mod_cluster is an httpd-based load balancer. ISAPI is a connector for the Microsoft IIS web server.

HornetQ a JMS messaging provider which provides high performance http://weblogic-wonders.com

 Conf :Contains the bootstrap.xml bootstrap descriptor file for a given server configuration. This defines the core microcontainer beans.

 Data: Used by services that want to store content in the file system. It holds persistent data for services intended to survive a server restart.  Deploy: Contains the hot-deployable services, applications  Lib: Contains library files specific to the server configuration.  Log: This is where the log files are written  tmp Used for temporary storage by JBoss services. The deployer, for example, expands application archives in this director  Work: Directory is used by Tomcat for compilation of JSP http://weblogic-wonders.com

Starting the Server:  Move to JBOSS_DIST/jboss-as/bin directory and execute the run.bat (for Windows) or run.sh (for Linux) script, as appropriate for your operating system.

 $JBOSS_HOME/bin/run.bat

    Note: Below are the default settings.

The server is bound to 127.0.0.1 for security reasons. To enable remote access by binding JBoss services to a particular interface, simply run jboss with the -b option.

 $JBOSS_HOME/bin/run.bat –b The server runs on port 8080 and to change the settings, we can run it as below.

  $JBOSS_HOME/bin/ run -Djboss.service.binding.set=ports-01 Specify alternate server profile.

$JBOSS_HOME/bin/ run –c Stopping the server:  You can run the shutdown script to shutdown the server.

 $JBOSS_HOME/bin/shutdown.sh http://weblogic-wonders.com

            JBOSS_HOME URL: file:/H:/jboss-6.0.0.Final/ Bootstrap: $JBOSS_HOME\server/default/conf/bootstrap.xml

Common Base: $JBOSS_HOME\common/ Common Library: $JBOSS_HOME\common/lib/ Server Name: default Server Base: $JBOSS_HOME\server/ Server Library: $JBOSS_HOME\server/default/lib/ Server Config: $JBOSS_HOME\server/default/conf/ Server Home: $JBOSS_HOME\server/default/ Server Data: $JBOSS_HOME\server/default/data/ Server Log: $JBOSS_HOME\server/default/log/ Server Temp: $JBOSS_HOME\server/default/tmp/ http://weblogic-wonders.com

Port

1099 JNDI 1100 HAJNDI for clustering

Description

8083 WebService for downloading RMI classes 4444 RMI/JRMP Invoker, invokes JMX services 4445 RMI/JRMPHA Invoker, invokes clustered JMX services 3528 CORBA ORB 8089 JMS RMI InvocationLayer 8090 JMS OIL InvocationLayer 8091 JMS UIL InvocationLayer 8092 JMS OIL2 InvocationLayer 8093 JMS UIL2 InvocationLayer 1701 Hypersonic Database 8080 WebServer (Tomcat/Jetty)

Location

server/default/conf/jboss-service.xml

server/all/deploy/cluster-service.xml

server/default/conf/jboss-service.xml

server/default/conf/jboss-service.xml

server/all/deploy/cluster-service.xml

server/all/conf/jacorb.properties

server/default/deploy/jms/rmi-il-service.xml

server/default/deploy/jms/oil-service.xml

server/default/deploy/jms/uil-service.xml

server/default/deploy/jms/oil2-service.xml

server/default/deploy/jms/uil2-service.xml

server/default/deploy/hsqldb-ds.xml

server/default/deploy/jbossweb tomcat41.sar/META-INF/jboss-service.xml

 Start automatically when you boot a Windows host computer  JBoss AS comes with Windows service executable as part of Jboss Native library that can run JBoss Application Server as service.

 The service executable jbosssvc.exe transforms run.bat and shutdown.bat batch scripts to services. This means that any change made to those scripts will be used both in service and command line mode.

 http://www.jboss.org/jbossweb/install/service.html

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Lab - 1  Installation and exploring the directory structure.

     Installing the Jboss App. Server.

Exploring the directory structure.

Starting and stopping the server.

Changing the default ports.

Binding to different IP interfaces.

Lab – 2  Exploring the memory arguments.

 Changing the default memory argument values Lab – 3  Jboss as windows service http://weblogic-wonders.com

 Included from Jboss 5.1.0 distribution list onwards.

 Uses the Embedded Jopr (As it runs as a part of Jboss Admin Server).

 Default username / password is admin/ admin defined in the below file.

server/configuration/conf/props/jmx-console-users.properties

 Change/ update the roles by editing the below file.

server/configuration/conf/props/jmx-console-roles.properties

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The Admin Console is secured by the JAAS security domain jmx-console .

 Enabling Authentication on the Admin Console In this web.xml file:JBOSS_HOME/server/PROFILE/deploy/management/console mgr.sar/web-console.war/WEB-INF/web.xml ensure the following security constraint fragment is uncommented   Enabling Security Domain on the Admin Console In this jboss web.xml file: JBOSS_HOME/server/PROFILE/deploy/management/console mgr.sar/web.console.war/WEB-INF/jboss-web.xml

ensure the following fragment is included.

   java:/jaas/jmx-console http://weblogic-wonders.com

Features:        Provides an overview of the server configuration Configuring the ports using the Service Binding Manager.

Deploy, Re-deploy, Undeploy and control the applications.

Configure, manage JMS resources Configure, manage connection factories.

Add, remove, configure and control the Data Sources.

Gather metrics related to the EAP instances, JMS Queues, Topics, Data Sources http://weblogic-wonders.com

 It’s a JBoss Management Console which provides a raw view of the JMX MBeans which make up the server. Things we can do with JMX Console.

      Display the JNDI tree : Lists the JNDI object bound using service=JNDIView Generate a thread dump: Capture the thread dumps using jboss.system:type=ServerInfo Mbean Display the memory pool usage : Using the jboss.system:type=ServerInfo mbean Manage the deployment scanner: Enable/ Disable the Hot Deployment scanner.

Redeploy an application Shut down JBoss http://weblogic-wonders.com

Features:  Jboss Management console.

 Comprehensive insight about the Jboss  $SERVER-PROFILE\deploy\management\console-mgr.sar\web-console.war

   $SERVER-PROFILE\deploy\management\console-mgr.sar\web-console.war\WEB INF\classes\ web-console-users.properties

web-console-roles.properties

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 JMX: Its Java Management Extension allows to integrate modules, containers, and plug-ins. These components are collectively called Mbeans.

 Executed by Twiddle.sh / twiddle.bat under the $JBOSS_HOME/bin folder.

 twiddle.bat –h  usage: twiddle [options] [command_arguments]  Connecting to a remote server using twiddle.

  twiddle.bat -s localhost:1099 serverinfo –d jboss  List the Mbeans that can be accessed.

 twiddle.bat -s localhost:1099 serverinfo –l   References: http://docs.jboss.org/jbossas/jboss4guide/r1/html/ch2.chapter.html

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      In JBoss log4j is used for logging.

Controlled by /conf/jboss-log4j.xml file.

Defines different appenders, message format, log levels etc.

By default, JBoss produces output to both the console and a log file (log/server.log).

Console default level is INFO.

No default log level for server log, so everything is logged (DEBUG).

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Lab - 4  Exploring the Admin console and JMX console.

 Checking the services Lab – 5  Exploring the Twiddle utility.

 Examples to getting Server Information, Global JNDI Information,Jboss Logging Information,Thread Pool information: Lab – 6  Understanding the logging feature.

 Changing the default logging level.

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Q - A

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