Name is not bound in this Context... Datasource not found - jersey

Question

Am building a small Jersey (1.9) REST Service and having a Java class as sub-resource where I connect to local database (Postgres 9.3).
For the datasource I have already add the entries in Context.xml:
<?xml version="1.0" encoding="UTF-8"?>
<Context path="/userProfile">
<Resource
auth="Container"
driverClassName="org.postgresql.Driver"
maxActive="100"
maxIdle="30"
maxWait="10000"
name="jdbc/apiUserProfile"
password="postgres"
type="javax.sql.DataSource"
url="jdbc:postgresql://localhost:5432/apiUserProfile"
username="postgres"/>
</Context>
When I run the application and call the following resource:
http://localhost:8084/userProfile/rest/user/conn
the page is blank - no content- and the tomcat (8.0) on netbeans (8.1) is throwing Error: Null Pointer Exception
javax.naming.NameNotFoundException: Name [jdbc/apiUserProfile] is not bound in this Context. Unable to find [jdbc].
at org.apache.naming.NamingContext.lookup(NamingContext.java:818)
at org.apache.naming.NamingContext.lookup(NamingContext.java:166)
at org.apache.naming.SelectorContext.lookup(SelectorContext.java:157)
at javax.naming.InitialContext.lookup(InitialContext.java:411)
at net.rest.dao.DbConn.apiUserProfileConn(DbConn.java:23)
at net.rest.service.userProfile.returnDatabaseStatus(userProfile.java:51)
I also already have the JAR files in the librairies:
lib/mysql-connector-java-5.1.39-bin.jar
lib/postgresql-9.3-1100-jdbc4.jar
and here is the sub-resource class for the datasource connection:
package net.rest.dao;
import javax.naming.*;
import javax.sql.*;
public class DbConn {
private static DataSource DbConn = null;
private static Context context = null;
public static DataSource apiUserProfileConn() throws Exception {
if(DbConn != null){
return DbConn;
}
try {
if(context == null){
context = new InitialContext();
}
DbConn = (DataSource) context.lookup("jdbc/apiUserProfile");
}
catch (Exception e) {
e.printStackTrace();
}
return DbConn;
}
}
Any Idea pls. how to fix this..
Many Thanks
a.kasbi

Answer 1

The issue is resolved now.. the Apache Tomcat Doc was very helpful:
http://localhost:8080/docs/jndi-datasource-examples-howto.html
http://localhost:8080/docs/jndi-datasource-examples-howto.html#PostgreSQL
The solution for me was adding the following into context.xml under: META-INF
<?xml version="1.0" encoding="UTF-8"?>
<Context path="/apiRest">
<Resource name="jdbc/apiUserProfile" auth="Container"
type="javax.sql.DataSource" driverClassName="org.postgresql.Driver"
url="jdbc:postgresql://127.0.0.1:5432/apiUserProfile"
username="postgres" password="postgres" maxTotal="20" maxIdle="10"
maxWaitMillis="-1"/>
</Context>
and the following in web.xml:
<resource-ref>
<description>postgreSQL Datasource example</description>
<res-ref-name>jdbc/apiUserProfile</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
The lookup argument in the java Class for the Datasource connection:
...
DbConn = (DataSource) context.lookup("java:/comp/env/jdbc/apiUserProfile");
...
Thanks