/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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";
@
Override
protected
String getSpecificationVersion() {
return "2.1";
}
@
Override
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;
}
}