...

This application will take you through plugin export and import using Apache Geronimo. We will enlist the

We are using Apache Geronimo V2.1.1 for this tutorial.
We have used an existing tutorial from tutorial section. Refer Stateless Session Bean tutorial for application development and deployment first. Later we will use Apache Geronimo to Export the application and dependencies as plugin and import the same.

To run this tutorial, as a minimum you will be required to have installed the following prerequisite software.

Apache Geronimo 2.1.1
Sun JDK 5.0+ (J2SE 1.5)
Eclipse 3.3.1.1 (Eclipse Classic package of Europa distribution), which is platform specific
Web Tools Platform (WTP) 2.0.1
Data Tools Platform (DTP) 1.5.1
Eclipse Modeling Framework (EMF) 2.3.1
Graphical Editing Framework (GEF) 3.3.1

Details on installing eclipse are provided in the Development environment section.
This tutorial is organized in the following sections:

Table of Contents

Creating a Stateless Session EJB project

...

Code Block

title	RegisterBeanRemote.java
borderStyle	solid


package statelessejb;
import javax.ejb.Remote;
@Remote
public interface RegisterBeanRemote 
{
public void register(String FirstName, String LastName, String Sex, String UserName, String Password);
public boolean verify(String username, String password);
}

...

Code Block

title	RegisterBean.java
borderStyle	solid


package statelessejb;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.annotation.Resource;
import javax.ejb.Stateless;
import javax.sql.DataSource;
@Stateless
public class RegisterBean implements RegisterBeanRemote{
	@Resource(name="jdbc/userds")
	private DataSource dbsource;
	private Connection dbconnect;
	@PostConstruct
	public void initialize()
	{
		try{
			dbconnect= dbsource.getConnection();
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
	public void register(String FirstName, String LastName, String Sex, String UserName, String Password)
	{
		try
		{
			String insert="INSERT INTO USERINFO (" + "FIRSTNAME," + "LASTNAME," + "SEX," + "USERNAME," + "PASSWORD)" + " VALUES(?,?,?,?,?)";
			PreparedStatement ps=dbconnect.prepareStatement(insert);
			ps.setString(1,FirstName);
			ps.setString(2,LastName);
			ps.setString(3,Sex);
			ps.setString(4,UserName);
			ps.setString(5,Password);
			int rs =ps.executeUpdate();
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
	public boolean verify(String username, String password)
	{
		boolean ret=false;
		String select="SELECT * FROM USERINFO";
		try{
		PreparedStatement ps=dbconnect.prepareStatement(select);
		ResultSet rs= ps.executeQuery();
		while(rs.next())
		{
			String str=(rs.getString("USERNAME")).trim();
			String str1=(rs.getString("PASSWORD")).trim();
			if (str.compareTo(username)==0)
			{
			if(str1.compareTo(password)==0)
			
				{
				ret=true;
				break;
				}
			
			else
			    ret=false;
			}
			else
				ret=false;
		}
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
		System.out.println(ret);
		return ret;	
	}
	@PreDestroy
	public void destroy(){
		try
		{
		dbconnect.close();
		dbconnect=null;
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}

	}
}

Warning

title	Warning

Due to some limitations in Geronimo Eclipse Plugin the generated deployment plan(openejb-jar.xml) does not have the correct namespace. Replace the existing namespace as shown in the figure with the following
<openejb-jar xmlns="http://www.openejb.org/xml/ns/openejb-jar-2.2" xmlns:nam="http://geronimo.apache.org/xml/ns/naming-1.2" xmlns:pkgen="http://www.openejb.org/xml/ns/pkgen-2.0" xmlns:sec="http://geronimo.apache.org/xml/ns/security-1.2" xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">

...

Creating a database using Administrative Console

...

. Once done refer the illustration in this tutorial to export and import JEE artifacts from Apache Geronimo administration console.

Info

title	Clarification

Application client referred in this tutorial is actually a Web Application Client.

Table of Contents

...

Code Block

title	CreateTable.sql
borderStyle	solid


CREATE TABLE USERINFO
(
FIRSTNAME char(20),
LASTNAME  char(20),
SEX       char(7),
USERNAME  char(20),
PASSWORD  char(20)
)

...

Creating a datasource using Administrative Console

...

Creating application client

Create a new dynamic Web Project with the name Application Client.

Right click on WebContent and create the following jsp's

Code Block

title	login.jsp
borderStyle	solid


<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Welcome to Apache Geronimo</title>
</head>
<body bgcolor="white">
<form method="post" action="passCredentials.jsp">
<h2 align="center"><font color="blue">Welcome to Apache Geronimo</font></h2>
<h2 align="center"><font color="blue">Enter your credentials</font></h2>
Enter your Username
<input type="text" name="username" size=20><br>
Enter your Password
<input type="password" name="password" size=20><br>
<input type="submit" value="Login">
<a href="http://localhost:8080/ApplicationClient/register.jsp">NewUser</a>
</form>
</body>
</html>

This form is the login page for our application. Once the user enters his/her credentials, these are passed to another jsp passCredentials.jsp(checkout the action in the form tag) to verify the authenticity of user credentials. In case the user is new he has to go through the registration process. This statement <a href="http://localhost:8080/ApplicationClient/register.jsp">NewUser</a> is used to route the user to registration page.

Code Block

title	passCredentials.jsp
borderStyle	solid


<%@ page import="java.util.Properties,javax.naming.Context,javax.naming.InitialContext,statelessejb.RegisterBeanRemote" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body bgcolor="white">
<%!boolean i; %>
<%
Properties prop=new Properties();
prop.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.client.RemoteInitialContextFactory");
	prop.put("java.naming.provider.url", "ejbd://localhost:4201");
Context context = new InitialContext(prop);
RegisterBeanRemote myejb=(RegisterBeanRemote)context.lookup("RegisterBeanRemote");
String s= request.getParameter("username");
String s1= request.getParameter("password");
i=myejb.verify(s,s1);
%>
<% 
	if (i==true){ 
%>
<jsp:forward page="/resources.jsp"></jsp:forward>
<% 
	} else {
%>
	<jsp:forward page="/login.jsp"></jsp:forward>
<% 
}
%>
</body>
</html>

<%!boolean i; %> is a declaration for a global variable. The other part is a scriptlet which does a JNDI lookup to the remote interface. Later the user credentials are passed to verify function. In case the credentials are correct user is routed to the resources page else he is redirected to login page to re-login.

Tip

title	Why is the lookup name RegisterBeanRemote??

This will be explained in the deploy an run section

Code Block

title	resources.jsp
borderStyle	solid


<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Welcome to Apache Geronimo</title>
</head>
<body bgcolor="white">
<h3><font color="blue">Welcome to Apache Geronimo Resource Center</font></h3> 
Apache Geronimo Home Page
<a href="http://geronimo.apache.org">Apache Geronimo Home page</a><br>
Join our mailing list
<a href="http://geronimo.apache.org/mailing-lists.html">Apache Geronimo Mailing List</a><br>
Come and Contribute to Apache Geronimo V2.1 Documentation
<a href="http://cwiki.apache.org/GMOxDOC21/">Apache Geronimo V2.1 Documentation</a>
</body>
</html>

This is the final page of the application which displays the various resources.

Code Block

title	register.jsp
borderStyle	solid


<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Welcome to Apache Geronimo</title>
</head>
<body bgcolor="white">
<script type="text/javascript">
function valForm()
{
	if (this.document.form1.username.value=="" || this.document.form1.username.value=="")
	{
		alert("You cannot leave the field blank");
		this.document.form1.firstname.focus();
		return false;
	}
	else
	{
		return true;
	}
}
</script>
<h2 align="center"><font color="blue">Welcome to Apache Geronimo User Registration</font></h2>
<form method="post" name="form1" action="passVariables.jsp" onSubmit=" return valForm();">
FirstName
<INPUT type="text" name="firstname" SIZE=20><br>
LastName
<INPUT type="text" name="lastname" SIZE=20 ><br>
Sex<br>
<input type="radio" name="sex" value="male"> Male
<br>
<input type="radio" name="sex" value="female"> Female
<br>
Select a UserName<br>
<input type="text" name="username" size=20><br>
Select a Password<br>
<input type="password" name="password"  size=20><br>
<br>
<input type="submit" value="Submit">
</form>
</body>
</html>

This page is the registration page. Once th user fills up the form and press Submit a valform() function is called which validates the field username and password. In case any of them is empty an alert is send which suggests empty fields in the form. If all is fine passVariables.jsp is called.

Code Block

title	passVariables.jsp
borderStyle	solid


<%@ page import="java.util.Properties,javax.naming.Context,javax.naming.InitialContext,statelessejb.RegisterBeanRemote" %>

<html>
<head>

<meta http-equiv="Refresh" content="5;URL=http://localhost:8080/ApplicationClient/login.jsp">
<title>Welcome to Apache Geronimo</title>
</head>

<%
Properties prop=new Properties();
prop.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.client.RemoteInitialContextFactory");
	prop.put("java.naming.provider.url", "ejbd://localhost:4201");
Context context = new InitialContext(prop);
RegisterBeanRemote myejb=(RegisterBeanRemote)context.lookup("RegisterBeanRemote");
String s= request.getParameter("firstname");
String s1= request.getParameter("lastname");
String s2= request.getParameter("sex");
String s3= request.getParameter("username");
String s4= request.getParameter("password");
myejb.register(s,s1,s2,s3,s4);
%>

<h3 align="center"><font color="blue">Thank you for registering with Apache Geronimo</font></h3>
<h3 align="center"><font color="blue">Redirecting to Login Page</font></h3>
</html>

In this page the fields are retrieved from register.jsp and the register function in the bean class is called to populate the database.
The code <meta http-equiv="Refresh" content="5;URL=http://localhost:8080/ApplicationClient/login.jsp^{Image Removed}"> suggests to wait for 5 seconds and then move to login.jsp

Code Block

title	index.jsp
borderStyle	solid


<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<body>
<jsp:forward page="/login.jsp" />
</body>
</html>

Few more configurations

In the EJB Project. Under META-INF, Edit openejb-jar.xml and add the following

Code Block

title	datasource dependency
borderStyle	solid


<sys:dependencies>
            <sys:dependency>
                <sys:groupId>console.dbpool</sys:groupId>
                <sys:artifactId>jdbc%2Fuserds</sys:artifactId>
            </sys:dependency>        
</sys:dependencies>

Finally the openejb-jar.xml will look like this

Code Block

title	openejb-jar.xml
borderStyle	solid


<?xml version="1.0" encoding="UTF-8"?>
<openejb-jar xmlns="http://www.openejb.org/xml/ns/openejb-jar-2.2" xmlns:nam="http://geronimo.apache.org/xml/ns/naming-1.2" xmlns:pkgen="http://www.openejb.org/xml/ns/pkgen-2.0" xmlns:sec="http://geronimo.apache.org/xml/ns/security-1.2" xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
  <sys:environment>
    <sys:moduleId>
      <sys:groupId>default</sys:groupId>
      <sys:artifactId>StatelessSessionEJB</sys:artifactId>
      <sys:version>1.0</sys:version>
      <sys:type>car</sys:type>
    </sys:moduleId>
    <sys:dependencies>
            <sys:dependency>
                <sys:groupId>console.dbpool</sys:groupId>
                <sys:artifactId>jdbc%2Fuserds</sys:artifactId>
            </sys:dependency>        
</sys:dependencies>
  </sys:environment>
  <enterprise-beans/>
</openejb-jar>

Info

title	Where did the above dependencies come from??

To make the datasource visible to EJB we need to add a dependency to the EJB deployment plan that is openejb-jar.xml. The above element can be obtained automatically from Geronimo Database Pool wizard. Select usage against the database pool jdbc/userds

In the WEB Project. Under WEB-INF, Edit geronimo-web.xml and add the following

Code Block

title	EJB dependency
borderStyle	solid


<sys:dependencies>
       <sys:dependency>
            <sys:groupId>default</sys:groupId>
      		<sys:artifactId>StatelessSessionEJB</sys:artifactId>
      		<sys:version>1.0</sys:version>
      		<sys:type>car</sys:type>
       </sys:dependency>        
</sys:dependencies>

Finally the geronimo-web.xml will look like this

Code Block

title	geronimo-web.xml
borderStyle	solid


<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.2" xmlns:nam="http://geronimo.apache.org/xml/ns/naming-1.2" xmlns:sec="http://geronimo.apache.org/xml/ns/security-1.2" xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
  <sys:environment>
    <sys:moduleId>
      <sys:groupId>default</sys:groupId>
      <sys:artifactId>ApplicationClient</sys:artifactId>
      <sys:version>1.0</sys:version>
      <sys:type>car</sys:type>
    </sys:moduleId>
    <sys:dependencies>
       <sys:dependency>
            <sys:groupId>default</sys:groupId>
      		<sys:artifactId>StatelessSessionEJB</sys:artifactId>
      		<sys:version>1.0</sys:version>
      		<sys:type>car</sys:type>
       </sys:dependency>        
</sys:dependencies>
  </sys:environment>
  <context-root>/ApplicationClient</context-root>
</web-app>

Right click the ApplicationClient Project and select properties. Select Java Build Path->Projects. Click add and add Stateless Session EJB. This is required for the compilation of the Client code.

Deploy and Run

Warning

title	warning

Due to limitation with Geronimo Eclipse Plugin, you will have to export the Stateless Session EJB project and Web Application project as a jar and war respectively.

...

Exporting the application as a plugin

...

Child pages

Versions Compared

Old Version 6

New Version Current

Key

Creating a Stateless Session EJB project

Creating a database using Administrative Console

Creating a datasource using Administrative Console

Creating application client

Few more configurations

Deploy and Run

Exporting the application as a plugin

Child pages

Page History

Versions Compared

Old Version 6

New Version Current

Key

Creating a Stateless Session EJB project

Creating a database using Administrative Console

Creating a datasource using Administrative Console

Creating application client

Few more configurations

Deploy and Run

Exporting the application as a plugin