org.jvnet.jaxbcommons.util.EnumUtils Maven / Gradle / Ivy

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package org.jvnet.jaxbcommons.util;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;


public class EnumUtils {

  private EnumUtils() {
  }

  public static String[] createCodes(final Map enumCodeMap, final Object[] ens) {
    final String[] codes = new String[ens.length];
    for (int index = 0; index < codes.length; index++) {
      final Object value = ens[index];
      final String code = (String) enumCodeMap.get(value);
      codes[index] = code;
    }
    return codes;
  }

  public static Map createEnumCodeMap(final Map codeEnumMap) {
    final Map enumCodeMap = new HashMap(codeEnumMap.size());
    for (Iterator iterator = codeEnumMap.entrySet().iterator(); iterator.hasNext();) {
      final Map.Entry entry = (Map.Entry) iterator.next();
      final Object code = entry.getKey();
      final Object value = entry.getValue();
      enumCodeMap.put(value, code);
    }
    return enumCodeMap;
  }

  public static String[] orderCodes(List enumsOrder, String[] codes) {
    final List oldCodes = Arrays.asList(codes);
    final List newCodes = new ArrayList(codes.length);
    for (Iterator iterator = enumsOrder.iterator(); iterator.hasNext();) {
      final String code = (String) iterator.next();
      if ("*".equals(code)) {
        newCodes.addAll(oldCodes);
        oldCodes.clear();
      }
      else {
        if (oldCodes.remove(code)) {
          newCodes.add(code);
        }
      }
    }
    return (String[]) newCodes.toArray(new String[newCodes.size()]);
  }
  
  public static Map orderEnumMap(final Map oldEnumMap, String[] codes)
  {
    final Map newEnumMap = new HashMap(oldEnumMap.size());
    for (int index = 0; index < codes.length; index++) {
      final String code = codes[index];
      final Object value = oldEnumMap.get(code);
      if (code != null && value != null)
      {
        newEnumMap.put(code, value);
      }
    }
    return newEnumMap;
  }
  
  public static Map orderEnumCodeMap(final Map oldEnumMap, String[] codes)
  {
    final Map newEnumCodeMap = new HashMap(oldEnumMap.size());
    for (int index = 0; index < codes.length; index++) {
      final String code = codes[index];
      final Object value = oldEnumMap.get(code);
      if (code != null && value != null)
      {
        newEnumCodeMap.put(value, code);
      }
    }
    return newEnumCodeMap;
  }
}