Quelle BeanRepository.java Sprache: JAVA

/*
* 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<String, String> 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);
    }

}

quality92%

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