venice-dynamo-rewrite/src/venice-base/com/silverwrist/venice/app/UserDefaultNamespaceHolder.java
2003-05-20 03:25:31 +00:00

168 lines
6.3 KiB
Java

/*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (the "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at <http://www.mozilla.org/MPL/>.
*
* Software distributed under the License is distributed on an "AS IS" basis, WITHOUT
* WARRANTY OF ANY KIND, either express or implied. See the License for the specific
* language governing rights and limitations under the License.
*
* The Original Code is the Venice Web Communities System.
*
* The Initial Developer of the Original Code is Eric J. Bowersox <erbo@silcom.com>,
* for Silverwrist Design Studios. Portions created by Eric J. Bowersox are
* Copyright (C) 2002 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
*
* Contributor(s):
*/
package com.silverwrist.venice.app;
import java.util.*;
import org.apache.log4j.Logger;
import org.w3c.dom.*;
import com.silverwrist.util.xml.*;
import com.silverwrist.dynamo.except.*;
import com.silverwrist.dynamo.iface.*;
import com.silverwrist.dynamo.util.*;
import com.silverwrist.venice.VeniceNamespaces;
import com.silverwrist.venice.iface.*;
public class UserDefaultNamespaceHolder
implements NamedObject, ComponentInitialize, ComponentShutdown, UserDefaultPropertyNamespace,
UserDefaultPropertyNamespaceRegistration
{
/*--------------------------------------------------------------------------------
* Static data members
*--------------------------------------------------------------------------------
*/
private static Logger logger = Logger.getLogger(UserDefaultNamespaceHolder.class);
/*--------------------------------------------------------------------------------
* Attributes
*--------------------------------------------------------------------------------
*/
private String m_name;
private Vector m_ns_list = new Vector();
private ComponentShutdown m_shut1;
private ComponentShutdown m_shut2;
/*--------------------------------------------------------------------------------
* Constructor
*--------------------------------------------------------------------------------
*/
public UserDefaultNamespaceHolder()
{
m_ns_list.add(VeniceNamespaces.USER_SETTINGS_NAMESPACE);
m_ns_list.add(VeniceNamespaces.USER_PROFILE_NAMESPACE);
} // end constructor
/*--------------------------------------------------------------------------------
* Implementations from interface NamedObject
*--------------------------------------------------------------------------------
*/
public String getName()
{
return m_name;
} // end getName
/*--------------------------------------------------------------------------------
* Implementations from interface ComponentInitialize
*--------------------------------------------------------------------------------
*/
/**
* Initialize the component.
*
* @param config_root Pointer to the section of the Dynamo XML configuration file that configures this
* particular component. This is to be considered "read-only" by the component.
* @param services An implementation of {@link com.silverwrist.dynamo.iface.ServiceProvider ServiceProvider}
* which provides initialization services to the component. This will include an implementation
* of {@link com.silverwrist.dynamo.iface.ObjectProvider ObjectProvider} which may be used to
* get information about other objects previously initialized by the application.
* @exception com.silverwrist.dynamo.except.ConfigException If an error is encountered in the component
* configuration.
*/
public void initialize(Element config_root, ServiceProvider services) throws ConfigException
{
logger.info("UserDefaultNamespaceHolder initializing");
XMLLoader loader = XMLLoader.get();
String gprops = null;
try
{ // verify the right node name
loader.verifyNodeName(config_root,"object");
// get the object's name
m_name = loader.getAttribute(config_root,"name");
} // end try
catch (XMLLoadException e)
{ // error loading XML config data
logger.fatal("XML loader exception in UserDefaultNamespaceHolder",e);
throw new ConfigException(e);
} // end catch
// Create ServiceProvider interfaces.
SingletonServiceProvider runtime_svcs =
new SingletonServiceProvider("UserDefaultNamespaceHolder",UserDefaultPropertyNamespace.class,this);
SingletonServiceProvider init_svcs =
new SingletonServiceProvider("UserDefaultNamespaceHolder",runtime_svcs,
UserDefaultPropertyNamespaceRegistration.class,this);
// Hook the services provided by Dynamo.
HookServiceProviders hooker = (HookServiceProviders)(services.queryService(HookServiceProviders.class));
m_shut1 = hooker.hookInitServiceProvider(init_svcs);
m_shut2 = hooker.hookRuntimeServiceProvider(runtime_svcs);
} // end initialize
/*--------------------------------------------------------------------------------
* Implementations from interface ComponentShutdown
*--------------------------------------------------------------------------------
*/
/**
* Shuts down the component associated with this interface, in a component-specific manner.
*/
public void shutdown()
{
m_shut2.shutdown();
m_shut2 = null;
m_shut1.shutdown();
m_shut1 = null;
} // end shutdown
/*--------------------------------------------------------------------------------
* Implementations from interface UserDefaultPropertyNamespace
*--------------------------------------------------------------------------------
*/
public Collection getDefaultPropertyNamespaces()
{
ArrayList rc = new ArrayList(m_ns_list);
return Collections.unmodifiableList(rc);
} // end getDefaultPropertyNamespaces
/*--------------------------------------------------------------------------------
* Implementations from interface UserDefaultPropertyNamespaceRegistration
*--------------------------------------------------------------------------------
*/
public ComponentShutdown registerUserDefaultPropertyNamespace(String namespace)
{
m_ns_list.add(namespace);
return new ShutdownVectorRemove(m_ns_list,namespace);
} // end registerUserDefaultPropertyNamespace
} // end class UserDefaultNamespaceHolder