content: /**
   * ﻿Copyright (C) 2007 - 2019 52°North Initiative for Geospatial Open Source
   * Software GmbH
   *
   * Licensed 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.n52.wps.algorithm.util;
  
  import com.google.common.collect.BiMap;
  import com.google.common.collect.HashBiMap;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.Map;
  
  /**
   *
   * @author tkunicki
   */
  public class ClassUtil {
  
      private final static Map<Class<?>, Class<?>> TO_WRAPPER;
      private final static Map<Class<?>, Class<?>> FROM_WRAPPER;
  
      static {
          BiMap<Class<?>, Class<?>> map = HashBiMap.create();
          map.put(Float.TYPE, Float.class);
          map.put(Double.TYPE, Double.class);
          map.put(Byte.TYPE, Byte.class);
          map.put(Short.TYPE, Short.class);
          map.put(Integer.TYPE, Integer.class);
          map.put(Long.TYPE, Long.class);
          map.put(Character.TYPE, Character.class);
          map.put(Boolean.TYPE, Boolean.class);
          TO_WRAPPER = Collections.unmodifiableMap(map);
          FROM_WRAPPER = Collections.unmodifiableMap(map.inverse());
      }
  
  
      public static <T extends Enum<T>> List<T> convertStringToEnumList(Class<T> enumType, List<String> stringList) {
          List<T> enumList = new ArrayList<T>();
          for (String string : stringList) {
              enumList.add(Enum.valueOf(enumType, string));
          }
          return enumList;
      }
  
      public static <T extends Enum<T>> List<String> convertEnumToStringList(Class<T> enumType) {
          ArrayList stringList = null;
          T[] constants = enumType.getEnumConstants();
          if (constants != null && constants.length > 0) {
              stringList = new ArrayList(constants.length);
              for (T constant : constants) {
                  stringList.add(constant.name());
              }
          }
          return stringList;
      }
  
      public static <T extends Enum<T>> String[] convertEnumToStringArray(Class<T> enumType) {
          List<String> stringList = convertEnumToStringList(enumType);
          return stringList == null ? null :
              stringList.toArray(new String[stringList.size()]);
      }
  
      public static boolean isWrapper(Class<?> clazz) {
          return FROM_WRAPPER.containsKey(clazz);
      }
  
      public static Class<?> unwrap(Class<?> clazz) {
          Class<?> unwrapped = FROM_WRAPPER.get(clazz);
          if (unwrapped == null)
              return clazz;
          return unwrapped;
  
      }
  
      public static Class<?> wrap(Class<?> clazz) {
          Class<?> wrapped = TO_WRAPPER.get(clazz);
          if (wrapped == null)
              return clazz;
          return wrapped;
      }
  
  }
  