/*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements. See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership. The ASF licenses this file

  * to you under the Apache License, Version 2.0 (the

  * "License"); you may not use this file except in compliance

  * with the License. You may obtain a copy of the License at

  *

  * http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing,

  * software distributed under the License is distributed on an

  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

  * KIND, either express or implied. See the License for the

  * specific language governing permissions and limitations

  * under the License.

  */

 package org.apache.johnzon.mapper.converter;

 import org.apache.johnzon.mapper.Converter;

 import java.util.HashMap;

 import java.util.Map;

 public class EnumConverter<T extends Enum<T>> implements Converter<T> {

     private final Map<String, T> values;

     public EnumConverter(final Class<T> aClass) {

         final T[] enumConstants = aClass.getEnumConstants();

         values = new HashMap<String, T>(enumConstants.length);

         for (final T t : enumConstants) {

             values.put(t.name(), t);

         }

     }

     @Override // no need of cache here, it is already fast

     public String toString(final T instance) {

         return instance.name();

     }

     @Override

     public T fromString(final String text) {

         return values.get(text);

     }

 }