org.apache.jasper.compiler.JarScannerFactory Maven / Gradle / Ivy
/*
* 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 org.apache.jasper.compiler;
import javax.servlet.ServletContext;
import org.apache.tomcat.JarScanner;
import org.apache.tomcat.util.scan.StandardJarScanner;
/**
* Provide a mechanism for Jasper to obtain a reference to the JarScanner
* implementation.
*/
public class JarScannerFactory {
private JarScannerFactory() {
// Don't want any instances so hide the default constructor.
}
/**
* Obtain the {@link JarScanner} associated with the specified {@link
* ServletContext}. It is obtained via a context parameter.
*/
public static JarScanner getJarScanner(ServletContext ctxt) {
JarScanner jarScanner =
(JarScanner) ctxt.getAttribute(JarScanner.class.getName());
if (jarScanner == null) {
ctxt.log(Localizer.getMessage("jsp.warning.noJarScanner"));
jarScanner = new StandardJarScanner();
}
return jarScanner;
}
}