/*
 * 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.karaf.shell.impl.console.loader;

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;

public class JarInJarURLConnection extends URLConnection {
    private ClassLoader classLoader;

    public JarInJarURLConnection( URL url, ClassLoader classLoader) {
        super(url);
        this.classLoader= classLoader;
    }

    @Override
    public void connect() throws IOException {
    }

    @Override
    public InputStream getInputStream() throws IOException {
        String file= URLDecoder.decode(url.getFile(), StandardCharsets.UTF_8.name() );
        InputStream result= classLoader.getResourceAsStream(file);
        if (result == null) {
            throw new MalformedURLException("Could not open InputStream for URL '" + url + "'");
        }
        return result;
    }
}
