/*

 * Copyright (c) 2009, 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

package shared;

import java.util.HashMap;

import java.util.Map;

/*******************************************************************/

// Class loader which has local class file storage in memory

/*******************************************************************/

public class ByteArrayClassLoader extends ClassLoader {

    private Map<String, byte[]> classes;

    public ByteArrayClassLoader() {

        classes = new HashMap<String, byte[]>();

    }

    public ByteArrayClassLoader(Map<String, byte[]> classes) {

        this.classes = classes;

    }

    public void appendClass(String name, byte[] classFile) {

        classes.put(name, classFile);

    }

    public Class findClass (String name) throws ClassNotFoundException {

        if (classes.containsKey(name)) {

            byte[] classData = classes.get(name);

            return defineClass(name, classData, 0, classData.length);

        } else {

            throw new ClassNotFoundException("Can't find requested class: " + name);

        }

    }

}