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/*
 * Fabric3
 * Copyright (c) 2009-2015 Metaform Systems
 *
 * Licensed 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.
 * Portions originally based on Apache Tuscany 2007
 * licensed under the Apache 2.0 license.
 */
/*
 * Copyright 2001-2004 The Apache Software Foundation.
 *
 * Licensed 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.fabric3.spi.util;

import java.util.HashMap;
import java.util.Map;

import org.fabric3.api.host.Fabric3Exception;

/**
 *
 */
public final class ClassLoading {
    private static final Map> PRIMITIVES;

    static {
        PRIMITIVES = new HashMap<>();
        PRIMITIVES.put("boolean", Boolean.TYPE);
        PRIMITIVES.put("byte", Byte.TYPE);
        PRIMITIVES.put("short", Short.TYPE);
        PRIMITIVES.put("int", Integer.TYPE);
        PRIMITIVES.put("long", Long.TYPE);
        PRIMITIVES.put("float", Float.TYPE);
        PRIMITIVES.put("double", Double.TYPE);
        PRIMITIVES.put("void", Void.TYPE);
    }

    public static Class loadClass(ClassLoader cl, String className) {
        Class clazz = PRIMITIVES.get(className);
        if (clazz == null) {
            try {
                clazz = Class.forName(className, true, cl);
            } catch (ClassNotFoundException e) {
                throw new Fabric3Exception(e);
            }
        }
        return clazz;
    }

    public static  T instantiate(Class type, ClassLoader cl, String className) {
        try {
            return type.cast(loadClass(cl, className).newInstance());
        } catch (InstantiationException | IllegalAccessException e) {
            throw new Fabric3Exception(e);
        }
    }

    private ClassLoading() {
    }
}