com.github.simondan.ojcms.beans.util.StorableUtil Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ojcms-beans Show documentation

The newest version!

package com.github.simondan.ojcms.beans.util;

import com.github.simondan.ojcms.beans.definition.*;
import org.jetbrains.annotations.Nullable;

import java.lang.reflect.*;
import java.util.*;

/**
 * Utility-Klasse für die StorableObject-Definition
 *
 * @author Simon Danner, 02.06.2016.
 */
public final class StorableUtil
{
  private StorableUtil()
  {
  }

  public static Map getDescriptionKeyMap(Class pClass)
  {
    List declaredFields = new ArrayList<>();
    //Alle Felder (auch der Super-Klassen) ermitteln
    Class current = pClass;
    do
    {
      declaredFields.addAll(Arrays.asList(current.getDeclaredFields()));
    }
    while ((current = current.getSuperclass()) != null);

    Map map = new LinkedHashMap<>();
    for (Field field : declaredFields)
      if (Modifier.isStatic(field.getModifiers()) && AbstractFieldDescription.class.isAssignableFrom(field.getType()))
        try
        {
          map.put((AbstractFieldDescription) field.get(null), field.getName());
        }
        catch (IllegalAccessException pE)
        {
          throw new RuntimeException(pE);
        }

    return map;
  }

  @Nullable
  public static AbstractFieldDescription getDescriptionFromKey(Map pDescKeyMap, String pKey)
  {
    for (AbstractFieldDescription description : pDescKeyMap.keySet())
      if (pDescKeyMap.get(description).equals(pKey))
        return description;
    return null;
  }
}