//
   //  ========================================================================
   //  Copyright (c) 1995-2015 Mort Bay Consulting Pty. Ltd.
   //  ------------------------------------------------------------------------
   //  All rights reserved. This program and the accompanying materials
   //  are made available under the terms of the Eclipse Public License v1.0
   //  and Apache License v2.0 which accompanies this distribution.
   //
   //      The Eclipse Public License is available at
  //      http://www.eclipse.org/legal/epl-v10.html
  //
  //      The Apache License v2.0 is available at
  //      http://www.opensource.org/licenses/apache2.0.php
  //
  //  You may elect to redistribute this code under either of these licenses.
  //  ========================================================================
  //
  
  package org.eclipse.jetty.websocket.jsr356.utils;
  
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.Set;
  
  public class Primitives
  {
      private static final Map<Class<?>, Class<?>> PRIMITIVE_CLASS_MAP;
      private static final Map<Class<?>, Class<?>> CLASS_PRIMITIVE_MAP;
  
      static
      {
          Map<Class<?>, Class<?>> primitives = new HashMap<>();
  
          // Map of classes to primitive types
          primitives.put(Boolean.class,Boolean.TYPE);
          primitives.put(Byte.class,Byte.TYPE);
          primitives.put(Character.class,Character.TYPE);
          primitives.put(Double.class,Double.TYPE);
          primitives.put(Float.class,Float.TYPE);
          primitives.put(Integer.class,Integer.TYPE);
          primitives.put(Long.class,Long.TYPE);
          primitives.put(Short.class,Short.TYPE);
          primitives.put(Void.class,Void.TYPE);
  
          CLASS_PRIMITIVE_MAP = Collections.unmodifiableMap(primitives);
  
          // Map of primitive types to classes
          Map<Class<?>, Class<?>> types = new HashMap<>();
          for (Map.Entry<Class<?>, Class<?>> classEntry : primitives.entrySet())
          {
              types.put(classEntry.getValue(),classEntry.getKey());
          }
  
          PRIMITIVE_CLASS_MAP = Collections.unmodifiableMap(types);
      }
  
      public static Class<?> getPrimitiveClass(Class<?> primitiveType)
      {
          return PRIMITIVE_CLASS_MAP.get(primitiveType);
      }
  
      public static Set<Class<?>> getPrimitiveClasses()
      {
          return CLASS_PRIMITIVE_MAP.keySet();
      }
  
      public static Set<Class<?>> getPrimitives()
      {
          return PRIMITIVE_CLASS_MAP.keySet();
      }
  
      public static Class<?> getPrimitiveType(Class<?> primitiveClass)
      {
          return CLASS_PRIMITIVE_MAP.get(primitiveClass);
      }
  }