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javaconfigurationpropertiesjndiapache-commons

Commons configuration - JNDIConfiguration - How to?

I usually use Commons Configuration for manage my applications configs. I have used properties files configuration. Now I'm interested in using a JNDIConfiguration but I'm not able to understand how this works reading the documentation or googling it.

Contextualizing, I'm working in webapps running in an JBoss AS.

Where will be the properties stored? In a file? some tables in a database?

I will be grateful for any guidance at this level even if it comes in shape of links where I can read some valuable information about it.

As a final note my goal is to free me of linking a file with a hardcoded path for my properties, but also don't force me to have my config in database tables. If you have any suggestions on how to do that in some other way be free to share.

Solution

  • Where will be the properties stored? In a file? some tables in a database?

    As @ewernli mentioned, the Java EE way to add entries in the JNDI tree is to use env-entry in your deployment descriptor(s).

    Now, if you don't want to repeat the same env-entry in several deployment descriptors, then there is a service for specifying global JNDI bindings: JNDIBindingServiceMgr.

    Below, the provided jboss-service.xml example:

    <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE server PUBLIC "-//JBoss//DTD MBean Service 4.0//EN"
          "http://www.jboss.org/j2ee/dtd/jboss-service_4_0.dtd">
<server>
   <mbean code="org.jboss.naming.JNDIBindingServiceMgr"
         name="jboss.tests:service=JNDIBindingServiceMgr">
      <attribute name="BindingsConfig" serialDataType="jbxb">
         <jndi:bindings
            xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
            xmlns:jndi="urn:jboss:jndi-binding-service:1.0"
            xs:schemaLocation="urn:jboss:jndi-binding-service:1.0 resource:jndi-binding-service_1_0.xsd"
            >
            <jndi:binding name="urls/jboss-home">
               <jndi:value type="java.net.URL">http://www.jboss.org</jndi:value>
            </jndi:binding>

            <jndi:binding name="hosts/localhost">
               <jndi:value editor="org.jboss.util.propertyeditor.InetAddressEditor">
                  127.0.0.1
               </jndi:value>
            </jndi:binding>

            <jndi:binding name="maps/testProps">
               <java:properties xmlns:java="urn:jboss:java-properties"
                  xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
                  xs:schemaLocation="urn:jboss:java-properties resource:java-properties_1_0.xsd">
                  <java:property>
                     <java:key>key1</java:key>
                     <java:value>value1</java:value>
                  </java:property>
                  <java:property>
                     <java:key>key2</java:key>
                     <java:value>value2</java:value>
                  </java:property>
               </java:properties>               
            </jndi:binding>
         </jndi:bindings>
      </attribute>
      <depends>jboss:service=Naming</depends>
   </mbean>

</server>

    If this is not what you are looking for, then I don't understand what you're looking for :) In that case, you should maybe clarify it.