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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
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 */

package org.glassfish.tyrus.core;

import java.util.HashMap;

/**
 * @author Stepan Kopriva (stepan.kopriva at oracle.com)
 */
class PrimitivesToWrappers {

    private static final HashMap, Class> conversionMap = new HashMap, Class>();

    static {
        conversionMap.put(int.class, Integer.class);
        conversionMap.put(short.class, Short.class);
        conversionMap.put(long.class, Long.class);
        conversionMap.put(double.class, Double.class);
        conversionMap.put(float.class, Float.class);
        conversionMap.put(boolean.class, Boolean.class);
        conversionMap.put(byte.class, Byte.class);
        conversionMap.put(char.class, Character.class);
        conversionMap.put(void.class, Void.class);
    }

    /**
     * Gets the Boxing class for the primitive type.
     *
     * @param c primitive type
     * @return boxing class if c is primitive type, c otherwise
     */
    public static Class getPrimitiveWrapper(Class c) {
        if (!c.isPrimitive()) {
            return c;
        }

        return conversionMap.containsKey(c) ? conversionMap.get(c) : c;
    }

    /**
     * Checks whether the given {@link Class} is a primitive wrapper class.
     *
     * @param c {@link Class} to be checked.
     * @return {@code true} iff the class is primitive wrapper, {@code false} otherwise.
     */
    public static boolean isPrimitiveWrapper(Class c) {
        return conversionMap.containsValue(c);
    }
}