/*
 * 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 aQute.shell.lang;

import java.lang.reflect.*;
import java.util.*;

import org.osgi.service.command.*;


public class Support implements Converter {

    public Object convert(Class<?> desiredType, final Object in) throws Exception {
        if ( in instanceof Function  && desiredType.isInterface() && desiredType.getDeclaredMethods().length == 1) {
            return Proxy.newProxyInstance(desiredType.getClassLoader(), new Class[] {desiredType}, new InvocationHandler() {
                Function command = ((Function) in);

                public Object invoke(Object proxy, Method method, Object[] args)
                        throws Throwable {
                    return command.execute(null,Arrays.asList(args));
                }
                
            });
        }
        return null;
    }

    public CharSequence format(Object target, int level, Converter escape)
            throws Exception {
        return null;
    }
}