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) 2004-2015 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<>( 13 ); 66 67 static { WRAPPERS.put( boolean.class, Boolean.class )68 WRAPPERS.put( boolean.class, Boolean.class ); WRAPPERS.put( byte.class, Byte.class )69 WRAPPERS.put( byte.class, Byte.class ); WRAPPERS.put( char.class, Character.class )70 WRAPPERS.put( char.class, Character.class ); WRAPPERS.put( double.class, Double.class )71 WRAPPERS.put( double.class, Double.class ); WRAPPERS.put( float.class, Float.class )72 WRAPPERS.put( float.class, Float.class ); WRAPPERS.put( int.class, Integer.class )73 WRAPPERS.put( int.class, Integer.class ); WRAPPERS.put( long.class, Long.class )74 WRAPPERS.put( long.class, Long.class ); WRAPPERS.put( short.class, Short.class )75 WRAPPERS.put( short.class, Short.class ); WRAPPERS.put( void.class, Void.class )76 WRAPPERS.put( void.class, Void.class ); 77 } 78 Classes()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 */ shortNameOf( String className )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" ) wrapperOf( Class<T> clazz )102 public static <T> Class<T> wrapperOf( Class<T> clazz ) { 103 return clazz.isPrimitive() ? (Class<T>) WRAPPERS.get( clazz ) : clazz; 104 } 105 } 106