org.apache.jasper.compiler.BeanRepository 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 java.util.HashMap;
import org.apache.jasper.JasperException;
/**
* Repository of {page, request, session, application}-scoped beans
*
* @author Mandar Raje
* @author Remy Maucherat
*/
public class BeanRepository {
private final HashMap beanTypes;
private final ClassLoader loader;
private final ErrorDispatcher errDispatcher;
/**
* Constructor.
* @param loader The class loader
* @param err The error dispatcher that will be used to report errors
*/
public BeanRepository(ClassLoader loader, ErrorDispatcher err) {
this.loader = loader;
this.errDispatcher = err;
beanTypes = new HashMap<>();
}
public void addBean(Node.UseBean n, String s, String type, String scope)
throws JasperException {
if (!(scope == null || scope.equals("page") || scope.equals("request")
|| scope.equals("session") || scope.equals("application"))) {
errDispatcher.jspError(n, "jsp.error.usebean.badScope");
}
beanTypes.put(s, type);
}
public Class getBeanType(String bean)
throws JasperException {
Class clazz = null;
try {
clazz = loader.loadClass(beanTypes.get(bean));
} catch (ClassNotFoundException ex) {
throw new JasperException (ex);
}
return clazz;
}
public boolean checkVariable(String bean) {
return beanTypes.containsKey(bean);
}
}