/*
* Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package freemarker.ext.jsp;
import javax.servlet.ServletContext;
import javax.servlet.jsp.JspApplicationContext;
/**
*/
class FreeMarkerJspFactory21 extends FreeMarkerJspFactory
{
private static final String JSPCTX_KEY =
FreeMarkerJspFactory21.class.getName() + "#jspAppContext";
protected String getSpecificationVersion() {
return "2.1";
}
public JspApplicationContext getJspApplicationContext(ServletContext ctx) {
JspApplicationContext jspctx = (JspApplicationContext)ctx.getAttribute(
JSPCTX_KEY);
if(jspctx == null) {
synchronized(ctx) {
jspctx = (JspApplicationContext)ctx.getAttribute(JSPCTX_KEY);
if(jspctx == null) {
jspctx = new FreeMarkerJspApplicationContext();
ctx.setAttribute(JSPCTX_KEY, jspctx);
}
}
}
return jspctx;
}
}