org.apache.turbine.services.avaloncomponent
Class TurbineAvalonComponentService

java.lang.Object
  org.apache.turbine.services.BaseInitable
      org.apache.turbine.services.BaseService
          org.apache.turbine.services.TurbineBaseService
              org.apache.turbine.services.avaloncomponent.TurbineAvalonComponentService

All Implemented Interfaces:

AvalonComponentService, org.apache.avalon.framework.activity.Disposable, Initable, org.apache.avalon.framework.activity.Initializable, Service

public class TurbineAvalonComponentService

extends TurbineBaseService

implements AvalonComponentService, org.apache.avalon.framework.activity.Initializable, org.apache.avalon.framework.activity.Disposable

An implementation of AvalonComponentService which loads all the components given in the TurbineResources.properties File.

For component which require the location of the application or context root, there are two ways to get it.

1. Implement the Contextualizable interface. The full path to the correct OS directory can be found under the ComponentAppRoot key.
2. The system property "applicationRoot" is also set to the full path of the correct OS directory.

If you want to initialize Torque by using the AvalonComponentService, you must activate Torque at initialization time by specifying services.AvalonComponentService.lookup = org.apache.torque.avalon.Torque in your TurbineResources.properties.

Version:

$Id: TurbineAvalonComponentService.java 280565 2005-09-13 14:39:33Z henning $

Author:

Quinton McCombs, Henning P. Schmiedehausen

Field Summary

Fields inherited from class org.apache.turbine.services.BaseService

configuration, name, serviceBroker

Fields inherited from class org.apache.turbine.services.BaseInitable

initableBroker, isInitialized

Fields inherited from interface org.apache.turbine.services.avaloncomponent.AvalonComponentService

AVALON_LOG_CATEGORY, COMPONENT_APP_ROOT, COMPONENT_CONFIG_KEY, COMPONENT_CONFIG_VALUE, COMPONENT_LOOKUP_KEY, COMPONENT_ROLE_KEY, COMPONENT_ROLE_VALUE, SERVICE_NAME

Constructor Summary

TurbineAvalonComponentService()

Method Summary

void	dispose() Disposes of the container and releases resources
void	init() Load all configured components and initialize them.
void	initialize() Initializes the container
org.apache.avalon.framework.component.Component	lookup(java.lang.String roleName) Returns an instance of the named component
void	release(org.apache.avalon.framework.component.Component component) Releases the component
void	shutdown() Shuts the Component Service down, calls dispose on the components that implement this interface

Methods inherited from class org.apache.turbine.services.TurbineBaseService

init, init, init

Methods inherited from class org.apache.turbine.services.BaseService

getConfiguration, getName, getProperties, getServiceBroker, setName, setServiceBroker

Methods inherited from class org.apache.turbine.services.BaseInitable

getInit, getInitableBroker, setInit, setInitableBroker

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.turbine.services.Service

getConfiguration, getName, getProperties, setName, setServiceBroker

Methods inherited from interface org.apache.turbine.services.Initable

getInit, init, setInitableBroker

Constructor Detail

TurbineAvalonComponentService

public TurbineAvalonComponentService()

Method Detail

init

public void init()
          throws InitializationException

Load all configured components and initialize them. This is a zero parameter variant which queries the Turbine Servlet for its config.

Specified by:

init in interface Initable

Overrides:

init in class TurbineBaseService

Throws:

InitializationException - Something went wrong in the init stage

shutdown

public void shutdown()

Shuts the Component Service down, calls dispose on the components that implement this interface

Specified by:

shutdown in interface Initable

Overrides:

shutdown in class TurbineBaseService

initialize

public void initialize()
                throws java.lang.Exception

Initializes the container

Specified by:

initialize in interface org.apache.avalon.framework.activity.Initializable

Throws:

java.lang.Exception - generic exception

dispose

public void dispose()

Disposes of the container and releases resources

Specified by:

dispose in interface org.apache.avalon.framework.activity.Disposable

lookup

public org.apache.avalon.framework.component.Component lookup(java.lang.String roleName)
                                                       throws org.apache.avalon.framework.component.ComponentException

Returns an instance of the named component

Specified by:

lookup in interface AvalonComponentService

Parameters:

roleName - Name of the role the component fills.

Returns:

an instance of the named component

Throws:

org.apache.avalon.framework.component.ComponentException - generic exception

release

public void release(org.apache.avalon.framework.component.Component component)

Releases the component

Specified by:

release in interface AvalonComponentService

Parameters:

component - the component to release