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From Ernst de Haan <er...@jollem.com>
Subject Re: Example Ant scripts for building EJBs
Date Tue, 30 May 2000 13:37:38 GMT
Hi Ann,


If you are looking for an example Ant script, check out the `Orion
Primer' at:

 * Orion Primer
   http://www.znerd.demon.nl/

That is a step-by-step guide for the Orion application server (conforms
to all the latest and greatest standards such as EJB 1.1 !).

You will find a simple build.xml file that creates the .jar file for
your EJB, the .war file for your Web module, and finally a .ear file,
your complete J2EE application ready for deployment.

Let me know if you have any trouble.


Ernst


Mykins, Ann wrote:
> Hi,
> This came from Conor MacNeill  - very useful (if your using Weblogic)
> Thanks,
> 
> 
> Ann Mykins
> Medic Computer Systems 
> (919) 847-8102 x1922
>  <mailto:Ann.Mykins@medic.com> 
> 
> -----Original Message-----
> From: Chaganthi, Madhusudan R. [mailto:mvc9@cdc.gov]
> Sent: Tuesday, May 30, 2000 9:21 AM
> To: 'ant-dev@jakarta.apache.org'
> Subject: Example Ant scripts for building EJBs
> 
> 
> Hi All
> This being my first post, please bear with me if this posting is not most
> appropriate for this list.
> I was wondering if anyone can point me to example ANT scripts which build
> EJBs (jar them after running ejbc, etc). I need something to break the
> ground. 
> Thanks a bunch
> Madhu
> 
> -----Original Message-----
> From: Conor MacNeill [mailto:conor@cortexebusiness.com.au] 
> Sent: Sunday, May 07, 2000 8:56 AM
> To: Ant-Dev Apache.
> Subject: Tasks for ejbc compile of weblogic EJBs
> 
> 
> Hi,
> 
> Attached are two task definitions and a small set of patches to allow you to
> use ant to build weblogic EJBs. I developed these tasks for building EJBs
> here at Cortex and Cortex have agreed to let me give them to the ant
> project.
> 
> The new code consists of two optional ant tasks: ddcreator and ejbc.
> ddcreator takes a set of deployment descriptor definitions according to the
> weblogic definition language and generates the serialised deployment
> descriptors, while ejbc takes the serialised deployment descriptor and
> generates the various EJB support files required by Weblogic, including the
> RMI stubs and skeletons. Both tasks only generate a result if it is out of
> date with respect to the source.
> 
> Example usage of the ddcreator task would be
> 
>     <ddcreator descriptors="${dd.dir}" dest="${gen.classes}"
>                classpath="${descriptorbuild.classpath}">
>         <include name="*.txt" />
>     </ddcreator>
> 
> where
> 
> descriptors is the directory where the text descriptor defintions are
> located
> dest is the directory where the serialised deployment descriptors are
> written
> classpath should include the  weblogic tools and the classes containing the
> home and remote interfaces for the various EJBs
> 
> The ejbc task is a little more complicated.
> 
>     <ejbc descriptors="${gen.classes}" src="${src.dir}"
> dest="${gen.classes}"
>           manifest="${build.manifest}"
>           classpath="${descriptorbuild.classpath}">
>         <include name="*.ser" />
>     </ejbc>
> 
> where
> 
> descriptors in this case is the directory where the serialised deployment
> descriptors are located
> src is the directory containing the source defining the home and remote
> interfaces
> dest is the directory where the generated support classes are written
> manifest is a generated jar manifest file defining all of the EJBs to be
> included
> classpath should again contains the weblogic tools plus the home, remote and
> bean classes.
> 
> Both tasks are MatchingTasks and the include element is generally used to
> select the appropriate files.
> 
> The implementation of these tasks supports the way we have been building
> EJBs at Cortex. In particular I set the ejbc options to those we currently
> use. If it doesn't fit with other organisations, let me know. Also this is
> geared to WebLogic 4.5. I have not yet looked at 5.1.
> 
> The implementation details of the two tasks are worth looking at a little
> bit more closely. Both tasks are implemented as an ant task with a separate
> helper class which is executed in a separate JVM. This is done because I
> wanted to control the classpath under which the weblogic tools were
> executed. The weblogic tools generally require the classpath to include the
> class files for the home and remote interfaces of the beans you are
> developing. I did not want to have to startup ant with its classpath
> including the project it is compiling. Thus the ant tasks simply delegate
> all the work to the helper in a separate JVM.
> 
> To create that JVM and have its output pumped into the project log, I used a
> Java task object. I needed to modify the ant Task object, however, to make
> the setProject method public so I could connect the project to the Java
> task. I also added a validateDirectory method which allows any task to
> validate that a given File object represents a directory and that the
> directory exists. This could probably be used by a few other tasks.
> 
> Let me know what you think, especially if you are using WebLogic.
> 
> Cheers
> Conor
> 
> --
> Conor MacNeill
> conor@cortexebusiness.com.au
> Cortex ebusiness Pty Limited
> 

> ? src/main/org/apache/tools/ant/taskdefs/optional/DDCreator.java
> ? src/main/org/apache/tools/ant/taskdefs/optional/DDCreatorHelper.java
> ? src/main/org/apache/tools/ant/taskdefs/optional/ejbc.java
> ? src/main/org/apache/tools/ant/taskdefs/optional/ejbcHelper.java
> Index: build.xml
> ===================================================================
> RCS file: /home/cvspublic/jakarta-ant/build.xml,v
> retrieving revision 1.21
> diff -u -r1.21 build.xml
> --- build.xml	2000/04/27 19:52:52	1.21
> +++ build.xml	2000/05/07 12:04:01
> @@ -37,6 +37,8 @@
>    <target name="check_for_optional_packages">
>      <available property="bsf.present" classname="com.ibm.bsf.BSFManager" />
>      <available property="netrexx.present" classname="netrexx.lang.Rexx" />
> +    <available property="ejbc.present" classname="weblogic.ejbc" />
> +    <available property="DDCreator.present" classname="weblogic.ejb.utils.DDCreator"
/>
>    </target>
>  
>    <!-- =================================================================== -->
> @@ -60,6 +62,8 @@
>             optimize="on" >
>        <exclude name="**/Script.java" unless="bsf.present" />
>        <exclude name="**/NetRexxC.java" unless="netrexx.present" />
> +      <exclude name="**/EJBC*.java" unless="ejbc.present" />
> +      <exclude name="**/DDCreator*.java" unless="DDCreator.present" />
>      </javac>
>   
>      <copydir src="${src.dir}" dest="${build.classes}">
> Index: src/main/org/apache/tools/ant/Task.java
> ===================================================================
> RCS file: /home/cvspublic/jakarta-ant/src/main/org/apache/tools/ant/Task.java,v
> retrieving revision 1.5
> diff -u -r1.5 Task.java
> --- src/main/org/apache/tools/ant/Task.java	2000/04/26 19:09:17	1.5
> +++ src/main/org/apache/tools/ant/Task.java	2000/05/07 12:04:02
> @@ -54,6 +54,8 @@
>  
>  package org.apache.tools.ant;
>  
> +import java.io.File;
> +
>  /**
>   * Base class for all tasks.
>   */
> @@ -73,7 +75,7 @@
>       *
>       * @param project Project in whose scope this task belongs.
>       */
> -    void setProject(Project project) {
> +    public void setProject(Project project) {
>          this.project = project;
>      }
>  
> @@ -124,5 +126,27 @@
>      public void setLocation(Location location) {
>          this.location = location;
>      }
> +    
> +    /**
> +     * Validate that a given directory exists and is in fact a directory.
> +     *
> +     * If the directory does not exists or is not a directory, a build exception
> +     * is thrown.
> +     *
> +     * @param dir the directory to be validated
> +     * @param usage indicates the role the directory is being used for (source, dest,
etc)
> +     *
> +     * @throws BuildException if the given directory is not valid.
> +     */
> +    protected void validateDirectory(File dir, String usage) {
> +        if (!dir.exists()) { 
> +            throw new BuildException("The " + usage + " directory, " + dir.getName()
+ ", does not exist.");
> +        }
> +        
> +        if (!dir.isDirectory()) {
> +            throw new BuildException("The " + usage + " directory, " + dir.getName()
+ ", is not a directory");
> +        }
> +    }
> +            
>  }
>  
> Index: src/main/org/apache/tools/ant/taskdefs/defaults.properties
> ===================================================================
> RCS file: /home/cvspublic/jakarta-ant/src/main/org/apache/tools/ant/taskdefs/defaults.properties,v
> retrieving revision 1.10
> diff -u -r1.10 defaults.properties
> --- src/main/org/apache/tools/ant/taskdefs/defaults.properties	2000/03/23 03:40:32	1.10
> +++ src/main/org/apache/tools/ant/taskdefs/defaults.properties	2000/05/07 12:04:03
> @@ -32,6 +32,8 @@
>  script=org.apache.tools.ant.taskdefs.optional.Script
>  netrexxc=org.apache.tools.ant.taskdefs.optional.NetRexxC
>  renameext=org.apache.tools.ant.taskdefs.optional.RenameExtensions
> +ejbc=org.apache.tools.ant.taskdefs.optional.ejbc
> +ddcreator=org.apache.tools.ant.taskdefs.optional.DDCreator
>  
>  # deprecated ant tasks (kept for back compatibility)
>  javadoc2=org.apache.tools.ant.taskdefs.Javadoc






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