1 /*

     2  * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

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

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

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

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

    15  * accompanied this code).

    16  *

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

    18  * 2 along with this work; if not, write to the Free Software Foundation,

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

    20  *

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

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

    23  * questions.

    24  */

    25 

    26 /*

    27  * This file is available under and governed by the GNU General Public

    28  * License version 2 only, as published by the Free Software Foundation.

    29  * However, the following notice accompanied the original version of this

    30  * file:

    31  *

    32  * The MIT License

    33  *

    34  * Copyright (c) 2004-2014 Paul R. Holser, Jr.

    35  *

    36  * Permission is hereby granted, free of charge, to any person obtaining

    37  * a copy of this software and associated documentation files (the

    38  * "Software"), to deal in the Software without restriction, including

    39  * without limitation the rights to use, copy, modify, merge, publish,

    40  * distribute, sublicense, and/or sell copies of the Software, and to

    41  * permit persons to whom the Software is furnished to do so, subject to

    42  * the following conditions:

    43  *

    44  * The above copyright notice and this permission notice shall be

    45  * included in all copies or substantial portions of the Software.

    46  *

    47  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

    48  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

    49  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

    50  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE

    51  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION

    52  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

    53  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

    54  */

    55 

    56 package jdk.internal.joptsimple.internal;

    57 

    58 import java.util.HashMap;

    59 import java.util.Map;

    60 

    61 /**

    62  * @author <a href="mailto:pholser@alumni.rice.edu">Paul Holser</a>

    63  */

    64 public final class Classes {

    65     private static final Map<Class<?>, Class<?>> WRAPPERS = new HashMap<Class<?>, Class<?>>( 13 );

    66 

    67     static {

    68         WRAPPERS.put( boolean.class, Boolean.class );

    69         WRAPPERS.put( byte.class, Byte.class );

    70         WRAPPERS.put( char.class, Character.class );

    71         WRAPPERS.put( double.class, Double.class );

    72         WRAPPERS.put( float.class, Float.class );

    73         WRAPPERS.put( int.class, Integer.class );

    74         WRAPPERS.put( long.class, Long.class );

    75         WRAPPERS.put( short.class, Short.class );

    76         WRAPPERS.put( void.class, Void.class );

    77     }

    78 

    79     private Classes() {

    80         throw new UnsupportedOperationException();

    81     }

    82 

    83     /**

    84      * Gives the "short version" of the given class name.  Somewhat naive to inner classes.

    85      *

    86      * @param className class name to chew on

    87      * @return the short name of the class

    88      */

    89     public static String shortNameOf( String className ) {

    90         return className.substring( className.lastIndexOf( '.' ) + 1 );

    91     }

    92 

    93     /**

    94      * Gives the primitive wrapper class for the given class. If the given class is not

    95      * {@linkplain Class#isPrimitive() primitive}, returns the class itself.

    96      *

    97      * @param <T> generic class type

    98      * @param clazz the class to check

    99      * @return primitive wrapper type if {@code clazz} is primitive, otherwise {@code clazz}

   100      */

   101     @SuppressWarnings( "unchecked" )

   102     public static <T> Class<T> wrapperOf( Class<T> clazz ) {

   103         return clazz.isPrimitive() ? (Class<T>) WRAPPERS.get( clazz ) : clazz;

   104     }

   105 }