104 lines
3.2 KiB
Java
104 lines
3.2 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 Community 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) 2001 Eric J. Bowersox/Silverwrist Design Studios. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
package com.silverwrist.venice.servlets.format;
|
|
|
|
import java.util.Hashtable;
|
|
import javax.servlet.ServletContext;
|
|
import org.apache.log4j.*;
|
|
|
|
public class DialogCache
|
|
{
|
|
/*--------------------------------------------------------------------------------
|
|
* Static data values
|
|
*--------------------------------------------------------------------------------
|
|
*/
|
|
|
|
protected static final String ATTR_NAME = "com.silverwrist.venice.servlets.DialogCache";
|
|
|
|
private static Category logger = Category.getInstance(DialogCache.class.getName());
|
|
|
|
/*--------------------------------------------------------------------------------
|
|
* Attributes
|
|
*--------------------------------------------------------------------------------
|
|
*/
|
|
|
|
Hashtable cache;
|
|
|
|
/*--------------------------------------------------------------------------------
|
|
* Constructor
|
|
*--------------------------------------------------------------------------------
|
|
*/
|
|
|
|
protected DialogCache()
|
|
{
|
|
cache = new Hashtable();
|
|
|
|
} // end constructor
|
|
|
|
/*--------------------------------------------------------------------------------
|
|
* External operations
|
|
*--------------------------------------------------------------------------------
|
|
*/
|
|
|
|
public boolean isCached(String name)
|
|
{
|
|
return (cache.get(name)!=null);
|
|
|
|
} // end isCached
|
|
|
|
public void saveTemplate(ContentDialog template)
|
|
{
|
|
String fullname = template.getClass().getName();
|
|
int clip_pos = fullname.lastIndexOf('.');
|
|
if (clip_pos>=0)
|
|
fullname = fullname.substring(clip_pos+1);
|
|
cache.put(fullname,template);
|
|
|
|
} // end saveTemplate
|
|
|
|
public ContentDialog getNewDialog(String name)
|
|
{
|
|
ContentDialog template = (ContentDialog)(cache.get(name));
|
|
if (template!=null)
|
|
return (ContentDialog)(template.clone());
|
|
else
|
|
return null;
|
|
|
|
} // end getNewDialog
|
|
|
|
/*--------------------------------------------------------------------------------
|
|
* Static operations for use by servlets
|
|
*--------------------------------------------------------------------------------
|
|
*/
|
|
|
|
public static DialogCache getDialogCache(ServletContext ctxt)
|
|
{
|
|
// Look in the servlet attributes first.
|
|
Object foo = ctxt.getAttribute(ATTR_NAME);
|
|
if (foo!=null)
|
|
return (DialogCache)foo;
|
|
|
|
// create a new one and return it
|
|
DialogCache cache = new DialogCache();
|
|
ctxt.setAttribute(ATTR_NAME,cache);
|
|
return cache;
|
|
|
|
} // end getDialogCache
|
|
|
|
} // end class DialogCache
|