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org.apache.cocoon.components.modules.input
Class NamingInputModule

java.lang.Object
  org.apache.avalon.framework.logger.AbstractLogEnabled
      org.apache.cocoon.components.modules.input.AbstractInputModule
          org.apache.cocoon.components.modules.input.NamingInputModule

All Implemented Interfaces:

Disposable, Initializable, Component, Configurable, LogEnabled, ThreadSafe, InputModule

public class NamingInputModule
extends AbstractInputModule
implements ThreadSafe, Initializable

NamingInputModule accesses values stored in the JNDI context.

This module accept any configuration parameters and passes them as properties to the InitialContext. When connecting to the Naming context of the server Cocoon is running in, no parameters are required.

Example module configuration when connecting to external WebLogic server:

   <java.naming.factory.initial>weblogic.jndi.WLInitialContextFactory</java.naming.factory.initial>
   <java.naming.provider.url>t3://localhost:7001</java.naming.provider.url>
 

Example usage:

   <map:generate src="{naming:java:comp/env/greeting}"/>
 

This lookups greeting entry from the environment of the webapp. Webapp's web.xml should define this entry:

   <env-entry>
     <env-entry-name>greeting</env-entry-name>
     <env-entry-value>Hello, World</env-entry-value>
     <env-entry-type>java.lang.String</env-entry-type>
   </env-entry>
 

Version:

$Id: NamingInputModule.html 1304258 2012-03-23 10:09:27Z ilgrosso $

Author:

Vadim Gritsenko

Field Summary

Fields inherited from class org.apache.cocoon.components.modules.input.AbstractInputModule

settings

Fields inherited from interface org.apache.cocoon.components.modules.input.InputModule

ROLE

Constructor Summary

NamingInputModule()

Method Summary

void	configure(Configuration conf) Fill in InitialContext properties from passed configuration.
void	dispose() Close InitialContext.
Object	getAttribute(String name, Configuration modeConf, Map objectModel) Look up name from the InitialContext.
Iterator	getAttributeNames(Configuration modeConf, Map objectModel) Returns empty iterator
void	initialize() Creates InitialContext with configured properties.

Methods inherited from class org.apache.cocoon.components.modules.input.AbstractInputModule

getAttributeValues

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled

enableLogging, getLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NamingInputModule

public NamingInputModule()

Method Detail

configure

public void configure(Configuration conf)
               throws ConfigurationException

Fill in InitialContext properties from passed configuration.

Specified by:

configure in interface Configurable

Overrides:

configure in class AbstractInputModule

Throws:

ConfigurationException

initialize

public void initialize()
                throws Exception

Creates InitialContext with configured properties.

Specified by:

initialize in interface Initializable

Throws:

Exception

dispose

public void dispose()

Close InitialContext.

Specified by:

dispose in interface Disposable

Overrides:

dispose in class AbstractInputModule

getAttribute

public Object getAttribute(String name,
                           Configuration modeConf,
                           Map objectModel)
                    throws ConfigurationException

Look up name from the InitialContext.

Specified by:

getAttribute in interface InputModule

Overrides:

getAttribute in class AbstractInputModule

Parameters:

name - a String that specifies what the caller thinks would identify an attribute. This is mainly a fallback if no modeConf is present.

modeConf - column's mode configuration from resource description. This argument is optional.

Throws:

ConfigurationException

getAttributeNames

public Iterator getAttributeNames(Configuration modeConf,
                                  Map objectModel)
                           throws ConfigurationException

Returns empty iterator

Specified by:

getAttributeNames in interface InputModule

Overrides:

getAttributeNames in class AbstractInputModule

Parameters:

modeConf - column's mode configuration from resource description. This argument is optional.

Throws:

ConfigurationException