We need to configure JNDI environment properties and Reference binding with the eXo container standard mechanism.

The Naming service covers:

Make sure you understand the Java Naming and Directory InterfaceTM (JNDI) concepts before using this service.

The InitialContextInitializer configuration example:

  <component>
    <type>org.exoplatform.services.naming.InitialContextInitializer</type>
    <init-params>
      <properties-param>
        <name>default-properties</name>
        <description>Default initial context properties</description>
        <property name="java.naming.factory.initial" value="org.exoplatform.services.naming.SimpleContextFactory"/>
      </properties-param>
      <properties-param>
        <name>mandatory-properties</name>
        <description>Mandatory initial context properties</description>
        <property name="java.naming.provider.url" value="rmi://localhost:9999"/>
      </properties-param>
      <value-param>.
        <name>bindings-store-path</name>.
        <value>bind-references.xml</value>.
      </value-param>.
    </init-params>
  </component>

where

binding-store-path is file path which stores binded datasources in runtime

The BindReferencePlugin component plugin configuration example (for JDBC datasource):

  <component-plugins> 
    <component-plugin> 
      <name>bind.datasource</name>
      <set-method>addPlugin</set-method>
      <type>org.exoplatform.services.naming.BindReferencePlugin</type>
      <init-params>
        <value-param>
          <name>bind-name</name>
          <value>jdbcjcr</value>
        </value-param>
        <value-param>
          <name>class-name</name>
          <value>javax.sql.DataSource</value>
        </value-param>  
        <value-param>
          <name>factory</name>
          <value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
        </value-param>
        <properties-param>
          <name>ref-addresses</name>
          <description>ref-addresses</description>
          <property name="driverClassName" value="org.hsqldb.jdbcDriver"/>
          <property name="url" value="jdbc:hsqldb:file:target/temp/data/portal"/>
          <property name="username" value="sa"/>
          <property name="password" value=""/>
        </properties-param>     
      </init-params>    
  </component-plugin>

InitialContextInitalizer also provides feature of references binding in runtime. References have bind in runtime will be persisted and automatically rebinded on a next system start.

Service provides methods for binding reference.

     public void bind(String bindName, 
                      String className, 
                      String factory, 
                      String factoryLocation, 
                      Map<String, String> refAddr) 
                 throws NamingException, FileNotFoundException, XMLStreamException;

Example of usage:

      // obtain InitialContextInitializer instance from ExoContainer (e.g. PortalContainer)
      InitialContextInitializer initContext = (InitialContextInitializer)container.getComponentInstanceOfType(InitialContextInitializer.class);
  
      Map<String, String> refAddr = new HashMap<String, String>();
      refAddr.put("driverClassName", "oracle.jdbc.OracleDriver");
      refAddr.put("url", "jdbc:oracle:thin:@oraclehost:1521:orcl");
      refAddr.put("username", "exouser");
      refAddr.put("password", "exopassword");

      initContext.bind("jdbcexco", "javax.sql.DataSource", "org.apache.commons.dbcp.BasicDataSourceFactory", null, refAddr);

      // try to get just bound DataSource
      DataSource ds = (DataSource)new InitialContext().lookup("jdbcexo");