1 /*

     2  * Copyright (c) 2011, 2017, 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.

     8  *

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

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

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

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

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

    21  * questions.

    22  */

    23 package org.graalvm.graphio;

    24 

    25 final class DefaultGraphTypes implements GraphTypes {

    26     static final GraphTypes DEFAULT = new DefaultGraphTypes();

    27 

    28     private DefaultGraphTypes() {

    29     }

    30 

    31     @Override

    32     public Class<?> enumClass(Object enumValue) {

    33         if (enumValue instanceof Enum<?>) {

    34             return enumValue.getClass();

    35         }

    36         return null;

    37     }

    38 

    39     @Override

    40     public int enumOrdinal(Object obj) {

    41         if (obj instanceof Enum<?>) {

    42             return ((Enum<?>) obj).ordinal();

    43         }

    44         return -1;

    45     }

    46 

    47     @SuppressWarnings("unchecked")

    48     @Override

    49     public String[] enumTypeValues(Object clazz) {

    50         if (clazz instanceof Class<?>) {

    51             Class<? extends Enum<?>> enumClass = (Class<? extends Enum<?>>) clazz;

    52             Enum<?>[] constants = enumClass.getEnumConstants();

    53             if (constants != null) {

    54                 String[] names = new String[constants.length];

    55                 for (int i = 0; i < constants.length; i++) {

    56                     names[i] = constants[i].name();

    57                 }

    58                 return names;

    59             }

    60         }

    61         return null;

    62     }

    63 

    64     @Override

    65     public String typeName(Object clazz) {

    66         if (clazz instanceof Class<?>) {

    67             return ((Class<?>) clazz).getName();

    68         }

    69         return null;

    70     }

    71 

    72 }